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| 1 #!/usr/bin/env perl | |
| 2 # | |
| 3 # ==================================================================== | |
| 4 # Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL | |
| 5 # project. The module is, however, dual licensed under OpenSSL and | |
| 6 # CRYPTOGAMS licenses depending on where you obtain it. For further | |
| 7 # details see http://www.openssl.org/~appro/cryptogams/. | |
| 8 # ==================================================================== | |
| 9 # | |
| 10 # Version 4.3. | |
| 11 # | |
| 12 # You might fail to appreciate this module performance from the first | |
| 13 # try. If compared to "vanilla" linux-ia32-icc target, i.e. considered | |
| 14 # to be *the* best Intel C compiler without -KPIC, performance appears | |
| 15 # to be virtually identical... But try to re-configure with shared | |
| 16 # library support... Aha! Intel compiler "suddenly" lags behind by 30% | |
| 17 # [on P4, more on others]:-) And if compared to position-independent | |
| 18 # code generated by GNU C, this code performs *more* than *twice* as | |
| 19 # fast! Yes, all this buzz about PIC means that unlike other hand- | |
| 20 # coded implementations, this one was explicitly designed to be safe | |
| 21 # to use even in shared library context... This also means that this | |
| 22 # code isn't necessarily absolutely fastest "ever," because in order | |
| 23 # to achieve position independence an extra register has to be | |
| 24 # off-loaded to stack, which affects the benchmark result. | |
| 25 # | |
| 26 # Special note about instruction choice. Do you recall RC4_INT code | |
| 27 # performing poorly on P4? It might be the time to figure out why. | |
| 28 # RC4_INT code implies effective address calculations in base+offset*4 | |
| 29 # form. Trouble is that it seems that offset scaling turned to be | |
| 30 # critical path... At least eliminating scaling resulted in 2.8x RC4 | |
| 31 # performance improvement [as you might recall]. As AES code is hungry | |
| 32 # for scaling too, I [try to] avoid the latter by favoring off-by-2 | |
| 33 # shifts and masking the result with 0xFF<<2 instead of "boring" 0xFF. | |
| 34 # | |
| 35 # As was shown by Dean Gaudet <dean@arctic.org>, the above note turned | |
| 36 # void. Performance improvement with off-by-2 shifts was observed on | |
| 37 # intermediate implementation, which was spilling yet another register | |
| 38 # to stack... Final offset*4 code below runs just a tad faster on P4, | |
| 39 # but exhibits up to 10% improvement on other cores. | |
| 40 # | |
| 41 # Second version is "monolithic" replacement for aes_core.c, which in | |
| 42 # addition to AES_[de|en]crypt implements private_AES_set_[de|en]cryption_key. | |
| 43 # This made it possible to implement little-endian variant of the | |
| 44 # algorithm without modifying the base C code. Motivating factor for | |
| 45 # the undertaken effort was that it appeared that in tight IA-32 | |
| 46 # register window little-endian flavor could achieve slightly higher | |
| 47 # Instruction Level Parallelism, and it indeed resulted in up to 15% | |
| 48 # better performance on most recent µ-archs... | |
| 49 # | |
| 50 # Third version adds AES_cbc_encrypt implementation, which resulted in | |
| 51 # up to 40% performance imrovement of CBC benchmark results. 40% was | |
| 52 # observed on P4 core, where "overall" imrovement coefficient, i.e. if | |
| 53 # compared to PIC generated by GCC and in CBC mode, was observed to be | |
| 54 # as large as 4x:-) CBC performance is virtually identical to ECB now | |
| 55 # and on some platforms even better, e.g. 17.6 "small" cycles/byte on | |
| 56 # Opteron, because certain function prologues and epilogues are | |
| 57 # effectively taken out of the loop... | |
| 58 # | |
| 59 # Version 3.2 implements compressed tables and prefetch of these tables | |
| 60 # in CBC[!] mode. Former means that 3/4 of table references are now | |
| 61 # misaligned, which unfortunately has negative impact on elder IA-32 | |
| 62 # implementations, Pentium suffered 30% penalty, PIII - 10%. | |
| 63 # | |
| 64 # Version 3.3 avoids L1 cache aliasing between stack frame and | |
| 65 # S-boxes, and 3.4 - L1 cache aliasing even between key schedule. The | |
| 66 # latter is achieved by copying the key schedule to controlled place in | |
| 67 # stack. This unfortunately has rather strong impact on small block CBC | |
| 68 # performance, ~2x deterioration on 16-byte block if compared to 3.3. | |
| 69 # | |
| 70 # Version 3.5 checks if there is L1 cache aliasing between user-supplied | |
| 71 # key schedule and S-boxes and abstains from copying the former if | |
| 72 # there is no. This allows end-user to consciously retain small block | |
| 73 # performance by aligning key schedule in specific manner. | |
| 74 # | |
| 75 # Version 3.6 compresses Td4 to 256 bytes and prefetches it in ECB. | |
| 76 # | |
| 77 # Current ECB performance numbers for 128-bit key in CPU cycles per | |
| 78 # processed byte [measure commonly used by AES benchmarkers] are: | |
| 79 # | |
| 80 # small footprint fully unrolled | |
| 81 # P4 24 22 | |
| 82 # AMD K8 20 19 | |
| 83 # PIII 25 23 | |
| 84 # Pentium 81 78 | |
| 85 # | |
| 86 # Version 3.7 reimplements outer rounds as "compact." Meaning that | |
| 87 # first and last rounds reference compact 256 bytes S-box. This means | |
| 88 # that first round consumes a lot more CPU cycles and that encrypt | |
| 89 # and decrypt performance becomes asymmetric. Encrypt performance | |
| 90 # drops by 10-12%, while decrypt - by 20-25%:-( 256 bytes S-box is | |
| 91 # aggressively pre-fetched. | |
| 92 # | |
| 93 # Version 4.0 effectively rolls back to 3.6 and instead implements | |
| 94 # additional set of functions, _[x86|sse]_AES_[en|de]crypt_compact, | |
| 95 # which use exclusively 256 byte S-box. These functions are to be | |
| 96 # called in modes not concealing plain text, such as ECB, or when | |
| 97 # we're asked to process smaller amount of data [or unconditionally | |
| 98 # on hyper-threading CPU]. Currently it's called unconditionally from | |
| 99 # AES_[en|de]crypt, which affects all modes, but CBC. CBC routine | |
| 100 # still needs to be modified to switch between slower and faster | |
| 101 # mode when appropriate... But in either case benchmark landscape | |
| 102 # changes dramatically and below numbers are CPU cycles per processed | |
| 103 # byte for 128-bit key. | |
| 104 # | |
| 105 # ECB encrypt ECB decrypt CBC large chunk | |
| 106 # P4 56[60] 84[100] 23 | |
| 107 # AMD K8 48[44] 70[79] 18 | |
| 108 # PIII 41[50] 61[91] 24 | |
| 109 # Core 2 32[38] 45[70] 18.5 | |
| 110 # Pentium 120 160 77 | |
| 111 # | |
| 112 # Version 4.1 switches to compact S-box even in key schedule setup. | |
| 113 # | |
| 114 # Version 4.2 prefetches compact S-box in every SSE round or in other | |
| 115 # words every cache-line is *guaranteed* to be accessed within ~50 | |
| 116 # cycles window. Why just SSE? Because it's needed on hyper-threading | |
| 117 # CPU! Which is also why it's prefetched with 64 byte stride. Best | |
| 118 # part is that it has no negative effect on performance:-) | |
| 119 # | |
| 120 # Version 4.3 implements switch between compact and non-compact block | |
| 121 # functions in AES_cbc_encrypt depending on how much data was asked | |
| 122 # to be processed in one stroke. | |
| 123 # | |
| 124 ###################################################################### | |
| 125 # Timing attacks are classified in two classes: synchronous when | |
| 126 # attacker consciously initiates cryptographic operation and collects | |
| 127 # timing data of various character afterwards, and asynchronous when | |
| 128 # malicious code is executed on same CPU simultaneously with AES, | |
| 129 # instruments itself and performs statistical analysis of this data. | |
| 130 # | |
| 131 # As far as synchronous attacks go the root to the AES timing | |
| 132 # vulnerability is twofold. Firstly, of 256 S-box elements at most 160 | |
| 133 # are referred to in single 128-bit block operation. Well, in C | |
| 134 # implementation with 4 distinct tables it's actually as little as 40 | |
| 135 # references per 256 elements table, but anyway... Secondly, even | |
| 136 # though S-box elements are clustered into smaller amount of cache- | |
| 137 # lines, smaller than 160 and even 40, it turned out that for certain | |
| 138 # plain-text pattern[s] or simply put chosen plain-text and given key | |
| 139 # few cache-lines remain unaccessed during block operation. Now, if | |
| 140 # attacker can figure out this access pattern, he can deduct the key | |
| 141 # [or at least part of it]. The natural way to mitigate this kind of | |
| 142 # attacks is to minimize the amount of cache-lines in S-box and/or | |
| 143 # prefetch them to ensure that every one is accessed for more uniform | |
| 144 # timing. But note that *if* plain-text was concealed in such way that | |
| 145 # input to block function is distributed *uniformly*, then attack | |
| 146 # wouldn't apply. Now note that some encryption modes, most notably | |
| 147 # CBC, do mask the plain-text in this exact way [secure cipher output | |
| 148 # is distributed uniformly]. Yes, one still might find input that | |
| 149 # would reveal the information about given key, but if amount of | |
| 150 # candidate inputs to be tried is larger than amount of possible key | |
| 151 # combinations then attack becomes infeasible. This is why revised | |
| 152 # AES_cbc_encrypt "dares" to switch to larger S-box when larger chunk | |
| 153 # of data is to be processed in one stroke. The current size limit of | |
| 154 # 512 bytes is chosen to provide same [diminishigly low] probability | |
| 155 # for cache-line to remain untouched in large chunk operation with | |
| 156 # large S-box as for single block operation with compact S-box and | |
| 157 # surely needs more careful consideration... | |
| 158 # | |
| 159 # As for asynchronous attacks. There are two flavours: attacker code | |
| 160 # being interleaved with AES on hyper-threading CPU at *instruction* | |
| 161 # level, and two processes time sharing single core. As for latter. | |
| 162 # Two vectors. 1. Given that attacker process has higher priority, | |
| 163 # yield execution to process performing AES just before timer fires | |
| 164 # off the scheduler, immediately regain control of CPU and analyze the | |
| 165 # cache state. For this attack to be efficient attacker would have to | |
| 166 # effectively slow down the operation by several *orders* of magnitute, | |
| 167 # by ratio of time slice to duration of handful of AES rounds, which | |
| 168 # unlikely to remain unnoticed. Not to mention that this also means | |
| 169 # that he would spend correspondigly more time to collect enough | |
| 170 # statistical data to mount the attack. It's probably appropriate to | |
| 171 # say that if adeversary reckons that this attack is beneficial and | |
| 172 # risks to be noticed, you probably have larger problems having him | |
| 173 # mere opportunity. In other words suggested code design expects you | |
| 174 # to preclude/mitigate this attack by overall system security design. | |
| 175 # 2. Attacker manages to make his code interrupt driven. In order for | |
| 176 # this kind of attack to be feasible, interrupt rate has to be high | |
| 177 # enough, again comparable to duration of handful of AES rounds. But | |
| 178 # is there interrupt source of such rate? Hardly, not even 1Gbps NIC | |
| 179 # generates interrupts at such raging rate... | |
| 180 # | |
| 181 # And now back to the former, hyper-threading CPU or more specifically | |
| 182 # Intel P4. Recall that asynchronous attack implies that malicious | |
| 183 # code instruments itself. And naturally instrumentation granularity | |
| 184 # has be noticeably lower than duration of codepath accessing S-box. | |
| 185 # Given that all cache-lines are accessed during that time that is. | |
| 186 # Current implementation accesses *all* cache-lines within ~50 cycles | |
| 187 # window, which is actually *less* than RDTSC latency on Intel P4! | |
| 188 | |
| 189 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; | |
| 190 push(@INC,"${dir}","${dir}../../perlasm"); | |
| 191 require "x86asm.pl"; | |
| 192 | |
| 193 &asm_init($ARGV[0],"aes-586.pl",$x86only = $ARGV[$#ARGV] eq "386"); | |
| 194 &static_label("AES_Te"); | |
| 195 &static_label("AES_Td"); | |
| 196 | |
| 197 $s0="eax"; | |
| 198 $s1="ebx"; | |
| 199 $s2="ecx"; | |
| 200 $s3="edx"; | |
| 201 $key="edi"; | |
| 202 $acc="esi"; | |
| 203 $tbl="ebp"; | |
| 204 | |
| 205 # stack frame layout in _[x86|sse]_AES_* routines, frame is allocated | |
| 206 # by caller | |
| 207 $__ra=&DWP(0,"esp"); # return address | |
| 208 $__s0=&DWP(4,"esp"); # s0 backing store | |
| 209 $__s1=&DWP(8,"esp"); # s1 backing store | |
| 210 $__s2=&DWP(12,"esp"); # s2 backing store | |
| 211 $__s3=&DWP(16,"esp"); # s3 backing store | |
| 212 $__key=&DWP(20,"esp"); # pointer to key schedule | |
| 213 $__end=&DWP(24,"esp"); # pointer to end of key schedule | |
| 214 $__tbl=&DWP(28,"esp"); # %ebp backing store | |
| 215 | |
| 216 # stack frame layout in AES_[en|crypt] routines, which differs from | |
| 217 # above by 4 and overlaps by %ebp backing store | |
| 218 $_tbl=&DWP(24,"esp"); | |
| 219 $_esp=&DWP(28,"esp"); | |
| 220 | |
| 221 sub _data_word() { my $i; while(defined($i=shift)) { &data_word($i,$i); } } | |
| 222 | |
| 223 $speed_limit=512; # chunks smaller than $speed_limit are | |
| 224 # processed with compact routine in CBC mode | |
| 225 $small_footprint=1; # $small_footprint=1 code is ~5% slower [on | |
| 226 # recent µ-archs], but ~5 times smaller! | |
| 227 # I favor compact code to minimize cache | |
| 228 # contention and in hope to "collect" 5% back | |
| 229 # in real-life applications... | |
| 230 | |
| 231 $vertical_spin=0; # shift "verticaly" defaults to 0, because of | |
| 232 # its proof-of-concept status... | |
| 233 # Note that there is no decvert(), as well as last encryption round is | |
| 234 # performed with "horizontal" shifts. This is because this "vertical" | |
| 235 # implementation [one which groups shifts on a given $s[i] to form a | |
| 236 # "column," unlike "horizontal" one, which groups shifts on different | |
| 237 # $s[i] to form a "row"] is work in progress. It was observed to run | |
| 238 # few percents faster on Intel cores, but not AMD. On AMD K8 core it's | |
| 239 # whole 12% slower:-( So we face a trade-off... Shall it be resolved | |
| 240 # some day? Till then the code is considered experimental and by | |
| 241 # default remains dormant... | |
| 242 | |
| 243 sub encvert() | |
| 244 { my ($te,@s) = @_; | |
| 245 my $v0 = $acc, $v1 = $key; | |
| 246 | |
| 247 &mov ($v0,$s[3]); # copy s3 | |
| 248 &mov (&DWP(4,"esp"),$s[2]); # save s2 | |
| 249 &mov ($v1,$s[0]); # copy s0 | |
| 250 &mov (&DWP(8,"esp"),$s[1]); # save s1 | |
| 251 | |
| 252 &movz ($s[2],&HB($s[0])); | |
| 253 &and ($s[0],0xFF); | |
| 254 &mov ($s[0],&DWP(0,$te,$s[0],8)); # s0>>0 | |
| 255 &shr ($v1,16); | |
| 256 &mov ($s[3],&DWP(3,$te,$s[2],8)); # s0>>8 | |
| 257 &movz ($s[1],&HB($v1)); | |
| 258 &and ($v1,0xFF); | |
| 259 &mov ($s[2],&DWP(2,$te,$v1,8)); # s0>>16 | |
| 260 &mov ($v1,$v0); | |
| 261 &mov ($s[1],&DWP(1,$te,$s[1],8)); # s0>>24 | |
| 262 | |
| 263 &and ($v0,0xFF); | |
| 264 &xor ($s[3],&DWP(0,$te,$v0,8)); # s3>>0 | |
| 265 &movz ($v0,&HB($v1)); | |
| 266 &shr ($v1,16); | |
| 267 &xor ($s[2],&DWP(3,$te,$v0,8)); # s3>>8 | |
| 268 &movz ($v0,&HB($v1)); | |
| 269 &and ($v1,0xFF); | |
| 270 &xor ($s[1],&DWP(2,$te,$v1,8)); # s3>>16 | |
| 271 &mov ($v1,&DWP(4,"esp")); # restore s2 | |
| 272 &xor ($s[0],&DWP(1,$te,$v0,8)); # s3>>24 | |
| 273 | |
| 274 &mov ($v0,$v1); | |
| 275 &and ($v1,0xFF); | |
| 276 &xor ($s[2],&DWP(0,$te,$v1,8)); # s2>>0 | |
| 277 &movz ($v1,&HB($v0)); | |
| 278 &shr ($v0,16); | |
| 279 &xor ($s[1],&DWP(3,$te,$v1,8)); # s2>>8 | |
| 280 &movz ($v1,&HB($v0)); | |
| 281 &and ($v0,0xFF); | |
| 282 &xor ($s[0],&DWP(2,$te,$v0,8)); # s2>>16 | |
| 283 &mov ($v0,&DWP(8,"esp")); # restore s1 | |
| 284 &xor ($s[3],&DWP(1,$te,$v1,8)); # s2>>24 | |
| 285 | |
| 286 &mov ($v1,$v0); | |
| 287 &and ($v0,0xFF); | |
| 288 &xor ($s[1],&DWP(0,$te,$v0,8)); # s1>>0 | |
| 289 &movz ($v0,&HB($v1)); | |
| 290 &shr ($v1,16); | |
| 291 &xor ($s[0],&DWP(3,$te,$v0,8)); # s1>>8 | |
| 292 &movz ($v0,&HB($v1)); | |
| 293 &and ($v1,0xFF); | |
| 294 &xor ($s[3],&DWP(2,$te,$v1,8)); # s1>>16 | |
| 295 &mov ($key,$__key); # reincarnate v1 as key | |
| 296 &xor ($s[2],&DWP(1,$te,$v0,8)); # s1>>24 | |
| 297 } | |
| 298 | |
| 299 # Another experimental routine, which features "horizontal spin," but | |
| 300 # eliminates one reference to stack. Strangely enough runs slower... | |
| 301 sub enchoriz() | |
| 302 { my $v0 = $key, $v1 = $acc; | |
| 303 | |
| 304 &movz ($v0,&LB($s0)); # 3, 2, 1, 0* | |
| 305 &rotr ($s2,8); # 8,11,10, 9 | |
| 306 &mov ($v1,&DWP(0,$te,$v0,8)); # 0 | |
| 307 &movz ($v0,&HB($s1)); # 7, 6, 5*, 4 | |
| 308 &rotr ($s3,16); # 13,12,15,14 | |
| 309 &xor ($v1,&DWP(3,$te,$v0,8)); # 5 | |
| 310 &movz ($v0,&HB($s2)); # 8,11,10*, 9 | |
| 311 &rotr ($s0,16); # 1, 0, 3, 2 | |
| 312 &xor ($v1,&DWP(2,$te,$v0,8)); # 10 | |
| 313 &movz ($v0,&HB($s3)); # 13,12,15*,14 | |
| 314 &xor ($v1,&DWP(1,$te,$v0,8)); # 15, t[0] collected | |
| 315 &mov ($__s0,$v1); # t[0] saved | |
| 316 | |
| 317 &movz ($v0,&LB($s1)); # 7, 6, 5, 4* | |
| 318 &shr ($s1,16); # -, -, 7, 6 | |
| 319 &mov ($v1,&DWP(0,$te,$v0,8)); # 4 | |
| 320 &movz ($v0,&LB($s3)); # 13,12,15,14* | |
| 321 &xor ($v1,&DWP(2,$te,$v0,8)); # 14 | |
| 322 &movz ($v0,&HB($s0)); # 1, 0, 3*, 2 | |
| 323 &and ($s3,0xffff0000); # 13,12, -, - | |
| 324 &xor ($v1,&DWP(1,$te,$v0,8)); # 3 | |
| 325 &movz ($v0,&LB($s2)); # 8,11,10, 9* | |
| 326 &or ($s3,$s1); # 13,12, 7, 6 | |
| 327 &xor ($v1,&DWP(3,$te,$v0,8)); # 9, t[1] collected | |
| 328 &mov ($s1,$v1); # s[1]=t[1] | |
| 329 | |
| 330 &movz ($v0,&LB($s0)); # 1, 0, 3, 2* | |
| 331 &shr ($s2,16); # -, -, 8,11 | |
| 332 &mov ($v1,&DWP(2,$te,$v0,8)); # 2 | |
| 333 &movz ($v0,&HB($s3)); # 13,12, 7*, 6 | |
| 334 &xor ($v1,&DWP(1,$te,$v0,8)); # 7 | |
| 335 &movz ($v0,&HB($s2)); # -, -, 8*,11 | |
| 336 &xor ($v1,&DWP(0,$te,$v0,8)); # 8 | |
| 337 &mov ($v0,$s3); | |
| 338 &shr ($v0,24); # 13 | |
| 339 &xor ($v1,&DWP(3,$te,$v0,8)); # 13, t[2] collected | |
| 340 | |
| 341 &movz ($v0,&LB($s2)); # -, -, 8,11* | |
| 342 &shr ($s0,24); # 1* | |
| 343 &mov ($s2,&DWP(1,$te,$v0,8)); # 11 | |
| 344 &xor ($s2,&DWP(3,$te,$s0,8)); # 1 | |
| 345 &mov ($s0,$__s0); # s[0]=t[0] | |
| 346 &movz ($v0,&LB($s3)); # 13,12, 7, 6* | |
| 347 &shr ($s3,16); # , ,13,12 | |
| 348 &xor ($s2,&DWP(2,$te,$v0,8)); # 6 | |
| 349 &mov ($key,$__key); # reincarnate v0 as key | |
| 350 &and ($s3,0xff); # , ,13,12* | |
| 351 &mov ($s3,&DWP(0,$te,$s3,8)); # 12 | |
| 352 &xor ($s3,$s2); # s[2]=t[3] collected | |
| 353 &mov ($s2,$v1); # s[2]=t[2] | |
| 354 } | |
| 355 | |
| 356 # More experimental code... SSE one... Even though this one eliminates | |
| 357 # *all* references to stack, it's not faster... | |
| 358 sub sse_encbody() | |
| 359 { | |
| 360 &movz ($acc,&LB("eax")); # 0 | |
| 361 &mov ("ecx",&DWP(0,$tbl,$acc,8)); # 0 | |
| 362 &pshufw ("mm2","mm0",0x0d); # 7, 6, 3, 2 | |
| 363 &movz ("edx",&HB("eax")); # 1 | |
| 364 &mov ("edx",&DWP(3,$tbl,"edx",8)); # 1 | |
| 365 &shr ("eax",16); # 5, 4 | |
| 366 | |
| 367 &movz ($acc,&LB("ebx")); # 10 | |
| 368 &xor ("ecx",&DWP(2,$tbl,$acc,8)); # 10 | |
| 369 &pshufw ("mm6","mm4",0x08); # 13,12, 9, 8 | |
| 370 &movz ($acc,&HB("ebx")); # 11 | |
| 371 &xor ("edx",&DWP(1,$tbl,$acc,8)); # 11 | |
| 372 &shr ("ebx",16); # 15,14 | |
| 373 | |
| 374 &movz ($acc,&HB("eax")); # 5 | |
| 375 &xor ("ecx",&DWP(3,$tbl,$acc,8)); # 5 | |
| 376 &movq ("mm3",QWP(16,$key)); | |
| 377 &movz ($acc,&HB("ebx")); # 15 | |
| 378 &xor ("ecx",&DWP(1,$tbl,$acc,8)); # 15 | |
| 379 &movd ("mm0","ecx"); # t[0] collected | |
| 380 | |
| 381 &movz ($acc,&LB("eax")); # 4 | |
| 382 &mov ("ecx",&DWP(0,$tbl,$acc,8)); # 4 | |
| 383 &movd ("eax","mm2"); # 7, 6, 3, 2 | |
| 384 &movz ($acc,&LB("ebx")); # 14 | |
| 385 &xor ("ecx",&DWP(2,$tbl,$acc,8)); # 14 | |
| 386 &movd ("ebx","mm6"); # 13,12, 9, 8 | |
| 387 | |
| 388 &movz ($acc,&HB("eax")); # 3 | |
| 389 &xor ("ecx",&DWP(1,$tbl,$acc,8)); # 3 | |
| 390 &movz ($acc,&HB("ebx")); # 9 | |
| 391 &xor ("ecx",&DWP(3,$tbl,$acc,8)); # 9 | |
| 392 &movd ("mm1","ecx"); # t[1] collected | |
| 393 | |
| 394 &movz ($acc,&LB("eax")); # 2 | |
| 395 &mov ("ecx",&DWP(2,$tbl,$acc,8)); # 2 | |
| 396 &shr ("eax",16); # 7, 6 | |
| 397 &punpckldq ("mm0","mm1"); # t[0,1] collected | |
| 398 &movz ($acc,&LB("ebx")); # 8 | |
| 399 &xor ("ecx",&DWP(0,$tbl,$acc,8)); # 8 | |
| 400 &shr ("ebx",16); # 13,12 | |
| 401 | |
| 402 &movz ($acc,&HB("eax")); # 7 | |
| 403 &xor ("ecx",&DWP(1,$tbl,$acc,8)); # 7 | |
| 404 &pxor ("mm0","mm3"); | |
| 405 &movz ("eax",&LB("eax")); # 6 | |
| 406 &xor ("edx",&DWP(2,$tbl,"eax",8)); # 6 | |
| 407 &pshufw ("mm1","mm0",0x08); # 5, 4, 1, 0 | |
| 408 &movz ($acc,&HB("ebx")); # 13 | |
| 409 &xor ("ecx",&DWP(3,$tbl,$acc,8)); # 13 | |
| 410 &xor ("ecx",&DWP(24,$key)); # t[2] | |
| 411 &movd ("mm4","ecx"); # t[2] collected | |
| 412 &movz ("ebx",&LB("ebx")); # 12 | |
| 413 &xor ("edx",&DWP(0,$tbl,"ebx",8)); # 12 | |
| 414 &shr ("ecx",16); | |
| 415 &movd ("eax","mm1"); # 5, 4, 1, 0 | |
| 416 &mov ("ebx",&DWP(28,$key)); # t[3] | |
| 417 &xor ("ebx","edx"); | |
| 418 &movd ("mm5","ebx"); # t[3] collected | |
| 419 &and ("ebx",0xffff0000); | |
| 420 &or ("ebx","ecx"); | |
| 421 | |
| 422 &punpckldq ("mm4","mm5"); # t[2,3] collected | |
| 423 } | |
| 424 | |
| 425 ###################################################################### | |
| 426 # "Compact" block function | |
| 427 ###################################################################### | |
| 428 | |
| 429 sub enccompact() | |
| 430 { my $Fn = mov; | |
| 431 while ($#_>5) { pop(@_); $Fn=sub{}; } | |
| 432 my ($i,$te,@s)=@_; | |
| 433 my $tmp = $key; | |
| 434 my $out = $i==3?$s[0]:$acc; | |
| 435 | |
| 436 # $Fn is used in first compact round and its purpose is to | |
| 437 # void restoration of some values from stack, so that after | |
| 438 # 4xenccompact with extra argument $key value is left there... | |
| 439 if ($i==3) { &$Fn ($key,$__key); }##%edx | |
| 440 else { &mov ($out,$s[0]); } | |
| 441 &and ($out,0xFF); | |
| 442 if ($i==1) { &shr ($s[0],16); }#%ebx[1] | |
| 443 if ($i==2) { &shr ($s[0],24); }#%ecx[2] | |
| 444 &movz ($out,&BP(-128,$te,$out,1)); | |
| 445 | |
| 446 if ($i==3) { $tmp=$s[1]; }##%eax | |
| 447 &movz ($tmp,&HB($s[1])); | |
| 448 &movz ($tmp,&BP(-128,$te,$tmp,1)); | |
| 449 &shl ($tmp,8); | |
| 450 &xor ($out,$tmp); | |
| 451 | |
| 452 if ($i==3) { $tmp=$s[2]; &mov ($s[1],$__s0); }##%ebx | |
| 453 else { &mov ($tmp,$s[2]); | |
| 454 &shr ($tmp,16); } | |
| 455 if ($i==2) { &and ($s[1],0xFF); }#%edx[2] | |
| 456 &and ($tmp,0xFF); | |
| 457 &movz ($tmp,&BP(-128,$te,$tmp,1)); | |
| 458 &shl ($tmp,16); | |
| 459 &xor ($out,$tmp); | |
| 460 | |
| 461 if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); }##%ecx | |
| 462 elsif($i==2){ &movz ($tmp,&HB($s[3])); }#%ebx[2] | |
| 463 else { &mov ($tmp,$s[3]); | |
| 464 &shr ($tmp,24); } | |
| 465 &movz ($tmp,&BP(-128,$te,$tmp,1)); | |
| 466 &shl ($tmp,24); | |
| 467 &xor ($out,$tmp); | |
| 468 if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } | |
| 469 if ($i==3) { &mov ($s[3],$acc); } | |
| 470 &comment(); | |
| 471 } | |
| 472 | |
| 473 sub enctransform() | |
| 474 { my @s = ($s0,$s1,$s2,$s3); | |
| 475 my $i = shift; | |
| 476 my $tmp = $tbl; | |
| 477 my $r2 = $key ; | |
| 478 | |
| 479 &mov ($acc,$s[$i]); | |
| 480 &and ($acc,0x80808080); | |
| 481 &mov ($tmp,$acc); | |
| 482 &shr ($tmp,7); | |
| 483 &lea ($r2,&DWP(0,$s[$i],$s[$i])); | |
| 484 &sub ($acc,$tmp); | |
| 485 &and ($r2,0xfefefefe); | |
| 486 &and ($acc,0x1b1b1b1b); | |
| 487 &mov ($tmp,$s[$i]); | |
| 488 &xor ($acc,$r2); # r2 | |
| 489 | |
| 490 &xor ($s[$i],$acc); # r0 ^ r2 | |
| 491 &rotl ($s[$i],24); | |
| 492 &xor ($s[$i],$acc) # ROTATE(r2^r0,24) ^ r2 | |
| 493 &rotr ($tmp,16); | |
| 494 &xor ($s[$i],$tmp); | |
| 495 &rotr ($tmp,8); | |
| 496 &xor ($s[$i],$tmp); | |
| 497 } | |
| 498 | |
| 499 &function_begin_B("_x86_AES_encrypt_compact"); | |
| 500 # note that caller is expected to allocate stack frame for me! | |
| 501 &mov ($__key,$key); # save key | |
| 502 | |
| 503 &xor ($s0,&DWP(0,$key)); # xor with key | |
| 504 &xor ($s1,&DWP(4,$key)); | |
| 505 &xor ($s2,&DWP(8,$key)); | |
| 506 &xor ($s3,&DWP(12,$key)); | |
| 507 | |
| 508 &mov ($acc,&DWP(240,$key)); # load key->rounds | |
| 509 &lea ($acc,&DWP(-2,$acc,$acc)); | |
| 510 &lea ($acc,&DWP(0,$key,$acc,8)); | |
| 511 &mov ($__end,$acc); # end of key schedule | |
| 512 | |
| 513 # prefetch Te4 | |
| 514 &mov ($key,&DWP(0-128,$tbl)); | |
| 515 &mov ($acc,&DWP(32-128,$tbl)); | |
| 516 &mov ($key,&DWP(64-128,$tbl)); | |
| 517 &mov ($acc,&DWP(96-128,$tbl)); | |
| 518 &mov ($key,&DWP(128-128,$tbl)); | |
| 519 &mov ($acc,&DWP(160-128,$tbl)); | |
| 520 &mov ($key,&DWP(192-128,$tbl)); | |
| 521 &mov ($acc,&DWP(224-128,$tbl)); | |
| 522 | |
| 523 &set_label("loop",16); | |
| 524 | |
| 525 &enccompact(0,$tbl,$s0,$s1,$s2,$s3,1); | |
| 526 &enccompact(1,$tbl,$s1,$s2,$s3,$s0,1); | |
| 527 &enccompact(2,$tbl,$s2,$s3,$s0,$s1,1); | |
| 528 &enccompact(3,$tbl,$s3,$s0,$s1,$s2,1); | |
| 529 &enctransform(2); | |
| 530 &enctransform(3); | |
| 531 &enctransform(0); | |
| 532 &enctransform(1); | |
| 533 &mov ($key,$__key); | |
| 534 &mov ($tbl,$__tbl); | |
| 535 &add ($key,16); # advance rd_key | |
| 536 &xor ($s0,&DWP(0,$key)); | |
| 537 &xor ($s1,&DWP(4,$key)); | |
| 538 &xor ($s2,&DWP(8,$key)); | |
| 539 &xor ($s3,&DWP(12,$key)); | |
| 540 | |
| 541 &cmp ($key,$__end); | |
| 542 &mov ($__key,$key); | |
| 543 &jb (&label("loop")); | |
| 544 | |
| 545 &enccompact(0,$tbl,$s0,$s1,$s2,$s3); | |
| 546 &enccompact(1,$tbl,$s1,$s2,$s3,$s0); | |
| 547 &enccompact(2,$tbl,$s2,$s3,$s0,$s1); | |
| 548 &enccompact(3,$tbl,$s3,$s0,$s1,$s2); | |
| 549 | |
| 550 &xor ($s0,&DWP(16,$key)); | |
| 551 &xor ($s1,&DWP(20,$key)); | |
| 552 &xor ($s2,&DWP(24,$key)); | |
| 553 &xor ($s3,&DWP(28,$key)); | |
| 554 | |
| 555 &ret (); | |
| 556 &function_end_B("_x86_AES_encrypt_compact"); | |
| 557 | |
| 558 ###################################################################### | |
| 559 # "Compact" SSE block function. | |
| 560 ###################################################################### | |
| 561 # | |
| 562 # Performance is not actually extraordinary in comparison to pure | |
| 563 # x86 code. In particular encrypt performance is virtually the same. | |
| 564 # Decrypt performance on the other hand is 15-20% better on newer | |
| 565 # µ-archs [but we're thankful for *any* improvement here], and ~50% | |
| 566 # better on PIII:-) And additionally on the pros side this code | |
| 567 # eliminates redundant references to stack and thus relieves/ | |
| 568 # minimizes the pressure on the memory bus. | |
| 569 # | |
| 570 # MMX register layout lsb | |
| 571 # +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | |
| 572 # | mm4 | mm0 | | |
| 573 # +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | |
| 574 # | s3 | s2 | s1 | s0 | | |
| 575 # +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | |
| 576 # |15|14|13|12|11|10| 9| 8| 7| 6| 5| 4| 3| 2| 1| 0| | |
| 577 # +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | |
| 578 # | |
| 579 # Indexes translate as s[N/4]>>(8*(N%4)), e.g. 5 means s1>>8. | |
| 580 # In this terms encryption and decryption "compact" permutation | |
| 581 # matrices can be depicted as following: | |
| 582 # | |
| 583 # encryption lsb # decryption lsb | |
| 584 # +----++----+----+----+----+ # +----++----+----+----+----+ | |
| 585 # | t0 || 15 | 10 | 5 | 0 | # | t0 || 7 | 10 | 13 | 0 | | |
| 586 # +----++----+----+----+----+ # +----++----+----+----+----+ | |
| 587 # | t1 || 3 | 14 | 9 | 4 | # | t1 || 11 | 14 | 1 | 4 | | |
| 588 # +----++----+----+----+----+ # +----++----+----+----+----+ | |
| 589 # | t2 || 7 | 2 | 13 | 8 | # | t2 || 15 | 2 | 5 | 8 | | |
| 590 # +----++----+----+----+----+ # +----++----+----+----+----+ | |
| 591 # | t3 || 11 | 6 | 1 | 12 | # | t3 || 3 | 6 | 9 | 12 | | |
| 592 # +----++----+----+----+----+ # +----++----+----+----+----+ | |
| 593 # | |
| 594 ###################################################################### | |
| 595 # Why not xmm registers? Short answer. It was actually tested and | |
| 596 # was not any faster, but *contrary*, most notably on Intel CPUs. | |
| 597 # Longer answer. Main advantage of using mm registers is that movd | |
| 598 # latency is lower, especially on Intel P4. While arithmetic | |
| 599 # instructions are twice as many, they can be scheduled every cycle | |
| 600 # and not every second one when they are operating on xmm register, | |
| 601 # so that "arithmetic throughput" remains virtually the same. And | |
| 602 # finally the code can be executed even on elder SSE-only CPUs:-) | |
| 603 | |
| 604 sub sse_enccompact() | |
| 605 { | |
| 606 &pshufw ("mm1","mm0",0x08); # 5, 4, 1, 0 | |
| 607 &pshufw ("mm5","mm4",0x0d); # 15,14,11,10 | |
| 608 &movd ("eax","mm1"); # 5, 4, 1, 0 | |
| 609 &movd ("ebx","mm5"); # 15,14,11,10 | |
| 610 | |
| 611 &movz ($acc,&LB("eax")); # 0 | |
| 612 &movz ("ecx",&BP(-128,$tbl,$acc,1)); # 0 | |
| 613 &pshufw ("mm2","mm0",0x0d); # 7, 6, 3, 2 | |
| 614 &movz ("edx",&HB("eax")); # 1 | |
| 615 &movz ("edx",&BP(-128,$tbl,"edx",1)); # 1 | |
| 616 &shl ("edx",8); # 1 | |
| 617 &shr ("eax",16); # 5, 4 | |
| 618 | |
| 619 &movz ($acc,&LB("ebx")); # 10 | |
| 620 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 10 | |
| 621 &shl ($acc,16); # 10 | |
| 622 &or ("ecx",$acc); # 10 | |
| 623 &pshufw ("mm6","mm4",0x08); # 13,12, 9, 8 | |
| 624 &movz ($acc,&HB("ebx")); # 11 | |
| 625 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 11 | |
| 626 &shl ($acc,24); # 11 | |
| 627 &or ("edx",$acc); # 11 | |
| 628 &shr ("ebx",16); # 15,14 | |
| 629 | |
| 630 &movz ($acc,&HB("eax")); # 5 | |
| 631 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 5 | |
| 632 &shl ($acc,8); # 5 | |
| 633 &or ("ecx",$acc); # 5 | |
| 634 &movz ($acc,&HB("ebx")); # 15 | |
| 635 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 15 | |
| 636 &shl ($acc,24); # 15 | |
| 637 &or ("ecx",$acc); # 15 | |
| 638 &movd ("mm0","ecx"); # t[0] collected | |
| 639 | |
| 640 &movz ($acc,&LB("eax")); # 4 | |
| 641 &movz ("ecx",&BP(-128,$tbl,$acc,1)); # 4 | |
| 642 &movd ("eax","mm2"); # 7, 6, 3, 2 | |
| 643 &movz ($acc,&LB("ebx")); # 14 | |
| 644 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 14 | |
| 645 &shl ($acc,16); # 14 | |
| 646 &or ("ecx",$acc); # 14 | |
| 647 | |
| 648 &movd ("ebx","mm6"); # 13,12, 9, 8 | |
| 649 &movz ($acc,&HB("eax")); # 3 | |
| 650 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 3 | |
| 651 &shl ($acc,24); # 3 | |
| 652 &or ("ecx",$acc); # 3 | |
| 653 &movz ($acc,&HB("ebx")); # 9 | |
| 654 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 9 | |
| 655 &shl ($acc,8); # 9 | |
| 656 &or ("ecx",$acc); # 9 | |
| 657 &movd ("mm1","ecx"); # t[1] collected | |
| 658 | |
| 659 &movz ($acc,&LB("ebx")); # 8 | |
| 660 &movz ("ecx",&BP(-128,$tbl,$acc,1)); # 8 | |
| 661 &shr ("ebx",16); # 13,12 | |
| 662 &movz ($acc,&LB("eax")); # 2 | |
| 663 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 2 | |
| 664 &shl ($acc,16); # 2 | |
| 665 &or ("ecx",$acc); # 2 | |
| 666 &shr ("eax",16); # 7, 6 | |
| 667 | |
| 668 &punpckldq ("mm0","mm1"); # t[0,1] collected | |
| 669 | |
| 670 &movz ($acc,&HB("eax")); # 7 | |
| 671 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 7 | |
| 672 &shl ($acc,24); # 7 | |
| 673 &or ("ecx",$acc); # 7 | |
| 674 &and ("eax",0xff); # 6 | |
| 675 &movz ("eax",&BP(-128,$tbl,"eax",1)); # 6 | |
| 676 &shl ("eax",16); # 6 | |
| 677 &or ("edx","eax"); # 6 | |
| 678 &movz ($acc,&HB("ebx")); # 13 | |
| 679 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 13 | |
| 680 &shl ($acc,8); # 13 | |
| 681 &or ("ecx",$acc); # 13 | |
| 682 &movd ("mm4","ecx"); # t[2] collected | |
| 683 &and ("ebx",0xff); # 12 | |
| 684 &movz ("ebx",&BP(-128,$tbl,"ebx",1)); # 12 | |
| 685 &or ("edx","ebx"); # 12 | |
| 686 &movd ("mm5","edx"); # t[3] collected | |
| 687 | |
| 688 &punpckldq ("mm4","mm5"); # t[2,3] collected | |
| 689 } | |
| 690 | |
| 691 if (!$x86only) { | |
| 692 &function_begin_B("_sse_AES_encrypt_compact"); | |
| 693 &pxor ("mm0",&QWP(0,$key)); # 7, 6, 5, 4, 3, 2, 1, 0 | |
| 694 &pxor ("mm4",&QWP(8,$key)); # 15,14,13,12,11,10, 9, 8 | |
| 695 | |
| 696 # note that caller is expected to allocate stack frame for me! | |
| 697 &mov ($acc,&DWP(240,$key)); # load key->rounds | |
| 698 &lea ($acc,&DWP(-2,$acc,$acc)); | |
| 699 &lea ($acc,&DWP(0,$key,$acc,8)); | |
| 700 &mov ($__end,$acc); # end of key schedule | |
| 701 | |
| 702 &mov ($s0,0x1b1b1b1b); # magic constant | |
| 703 &mov (&DWP(8,"esp"),$s0); | |
| 704 &mov (&DWP(12,"esp"),$s0); | |
| 705 | |
| 706 # prefetch Te4 | |
| 707 &mov ($s0,&DWP(0-128,$tbl)); | |
| 708 &mov ($s1,&DWP(32-128,$tbl)); | |
| 709 &mov ($s2,&DWP(64-128,$tbl)); | |
| 710 &mov ($s3,&DWP(96-128,$tbl)); | |
| 711 &mov ($s0,&DWP(128-128,$tbl)); | |
| 712 &mov ($s1,&DWP(160-128,$tbl)); | |
| 713 &mov ($s2,&DWP(192-128,$tbl)); | |
| 714 &mov ($s3,&DWP(224-128,$tbl)); | |
| 715 | |
| 716 &set_label("loop",16); | |
| 717 &sse_enccompact(); | |
| 718 &add ($key,16); | |
| 719 &cmp ($key,$__end); | |
| 720 &ja (&label("out")); | |
| 721 | |
| 722 &movq ("mm2",&QWP(8,"esp")); | |
| 723 &pxor ("mm3","mm3"); &pxor ("mm7","mm7"); | |
| 724 &movq ("mm1","mm0"); &movq ("mm5","mm4"); # r0 | |
| 725 &pcmpgtb("mm3","mm0"); &pcmpgtb("mm7","mm4"); | |
| 726 &pand ("mm3","mm2"); &pand ("mm7","mm2"); | |
| 727 &pshufw ("mm2","mm0",0xb1); &pshufw ("mm6","mm4",0xb1);# ROT
ATE(r0,16) | |
| 728 &paddb ("mm0","mm0"); &paddb ("mm4","mm4"); | |
| 729 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # = r2 | |
| 730 &pshufw ("mm3","mm2",0xb1); &pshufw ("mm7","mm6",0xb1);# r0 | |
| 731 &pxor ("mm1","mm0"); &pxor ("mm5","mm4"); # r0^r2 | |
| 732 &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= ROT
ATE(r0,16) | |
| 733 | |
| 734 &movq ("mm2","mm3"); &movq ("mm6","mm7"); | |
| 735 &pslld ("mm3",8); &pslld ("mm7",8); | |
| 736 &psrld ("mm2",24); &psrld ("mm6",24); | |
| 737 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= r0<
<8 | |
| 738 &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= r0>
>24 | |
| 739 | |
| 740 &movq ("mm3","mm1"); &movq ("mm7","mm5"); | |
| 741 &movq ("mm2",&QWP(0,$key)); &movq ("mm6",&QWP(8,$key)); | |
| 742 &psrld ("mm1",8); &psrld ("mm5",8); | |
| 743 &mov ($s0,&DWP(0-128,$tbl)); | |
| 744 &pslld ("mm3",24); &pslld ("mm7",24); | |
| 745 &mov ($s1,&DWP(64-128,$tbl)); | |
| 746 &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= (r2
^r0)<<8 | |
| 747 &mov ($s2,&DWP(128-128,$tbl)); | |
| 748 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= (r2
^r0)>>24 | |
| 749 &mov ($s3,&DWP(192-128,$tbl)); | |
| 750 | |
| 751 &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); | |
| 752 &jmp (&label("loop")); | |
| 753 | |
| 754 &set_label("out",16); | |
| 755 &pxor ("mm0",&QWP(0,$key)); | |
| 756 &pxor ("mm4",&QWP(8,$key)); | |
| 757 | |
| 758 &ret (); | |
| 759 &function_end_B("_sse_AES_encrypt_compact"); | |
| 760 } | |
| 761 | |
| 762 ###################################################################### | |
| 763 # Vanilla block function. | |
| 764 ###################################################################### | |
| 765 | |
| 766 sub encstep() | |
| 767 { my ($i,$te,@s) = @_; | |
| 768 my $tmp = $key; | |
| 769 my $out = $i==3?$s[0]:$acc; | |
| 770 | |
| 771 # lines marked with #%e?x[i] denote "reordered" instructions... | |
| 772 if ($i==3) { &mov ($key,$__key); }##%edx | |
| 773 else { &mov ($out,$s[0]); | |
| 774 &and ($out,0xFF); } | |
| 775 if ($i==1) { &shr ($s[0],16); }#%ebx[1] | |
| 776 if ($i==2) { &shr ($s[0],24); }#%ecx[2] | |
| 777 &mov ($out,&DWP(0,$te,$out,8)); | |
| 778 | |
| 779 if ($i==3) { $tmp=$s[1]; }##%eax | |
| 780 &movz ($tmp,&HB($s[1])); | |
| 781 &xor ($out,&DWP(3,$te,$tmp,8)); | |
| 782 | |
| 783 if ($i==3) { $tmp=$s[2]; &mov ($s[1],$__s0); }##%ebx | |
| 784 else { &mov ($tmp,$s[2]); | |
| 785 &shr ($tmp,16); } | |
| 786 if ($i==2) { &and ($s[1],0xFF); }#%edx[2] | |
| 787 &and ($tmp,0xFF); | |
| 788 &xor ($out,&DWP(2,$te,$tmp,8)); | |
| 789 | |
| 790 if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); }##%ecx | |
| 791 elsif($i==2){ &movz ($tmp,&HB($s[3])); }#%ebx[2] | |
| 792 else { &mov ($tmp,$s[3]); | |
| 793 &shr ($tmp,24) } | |
| 794 &xor ($out,&DWP(1,$te,$tmp,8)); | |
| 795 if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } | |
| 796 if ($i==3) { &mov ($s[3],$acc); } | |
| 797 &comment(); | |
| 798 } | |
| 799 | |
| 800 sub enclast() | |
| 801 { my ($i,$te,@s)=@_; | |
| 802 my $tmp = $key; | |
| 803 my $out = $i==3?$s[0]:$acc; | |
| 804 | |
| 805 if ($i==3) { &mov ($key,$__key); }##%edx | |
| 806 else { &mov ($out,$s[0]); } | |
| 807 &and ($out,0xFF); | |
| 808 if ($i==1) { &shr ($s[0],16); }#%ebx[1] | |
| 809 if ($i==2) { &shr ($s[0],24); }#%ecx[2] | |
| 810 &mov ($out,&DWP(2,$te,$out,8)); | |
| 811 &and ($out,0x000000ff); | |
| 812 | |
| 813 if ($i==3) { $tmp=$s[1]; }##%eax | |
| 814 &movz ($tmp,&HB($s[1])); | |
| 815 &mov ($tmp,&DWP(0,$te,$tmp,8)); | |
| 816 &and ($tmp,0x0000ff00); | |
| 817 &xor ($out,$tmp); | |
| 818 | |
| 819 if ($i==3) { $tmp=$s[2]; &mov ($s[1],$__s0); }##%ebx | |
| 820 else { &mov ($tmp,$s[2]); | |
| 821 &shr ($tmp,16); } | |
| 822 if ($i==2) { &and ($s[1],0xFF); }#%edx[2] | |
| 823 &and ($tmp,0xFF); | |
| 824 &mov ($tmp,&DWP(0,$te,$tmp,8)); | |
| 825 &and ($tmp,0x00ff0000); | |
| 826 &xor ($out,$tmp); | |
| 827 | |
| 828 if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); }##%ecx | |
| 829 elsif($i==2){ &movz ($tmp,&HB($s[3])); }#%ebx[2] | |
| 830 else { &mov ($tmp,$s[3]); | |
| 831 &shr ($tmp,24); } | |
| 832 &mov ($tmp,&DWP(2,$te,$tmp,8)); | |
| 833 &and ($tmp,0xff000000); | |
| 834 &xor ($out,$tmp); | |
| 835 if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } | |
| 836 if ($i==3) { &mov ($s[3],$acc); } | |
| 837 } | |
| 838 | |
| 839 &function_begin_B("_x86_AES_encrypt"); | |
| 840 if ($vertical_spin) { | |
| 841 # I need high parts of volatile registers to be accessible... | |
| 842 &exch ($s1="edi",$key="ebx"); | |
| 843 &mov ($s2="esi",$acc="ecx"); | |
| 844 } | |
| 845 | |
| 846 # note that caller is expected to allocate stack frame for me! | |
| 847 &mov ($__key,$key); # save key | |
| 848 | |
| 849 &xor ($s0,&DWP(0,$key)); # xor with key | |
| 850 &xor ($s1,&DWP(4,$key)); | |
| 851 &xor ($s2,&DWP(8,$key)); | |
| 852 &xor ($s3,&DWP(12,$key)); | |
| 853 | |
| 854 &mov ($acc,&DWP(240,$key)); # load key->rounds | |
| 855 | |
| 856 if ($small_footprint) { | |
| 857 &lea ($acc,&DWP(-2,$acc,$acc)); | |
| 858 &lea ($acc,&DWP(0,$key,$acc,8)); | |
| 859 &mov ($__end,$acc); # end of key schedule | |
| 860 | |
| 861 &set_label("loop",16); | |
| 862 if ($vertical_spin) { | |
| 863 &encvert($tbl,$s0,$s1,$s2,$s3); | |
| 864 } else { | |
| 865 &encstep(0,$tbl,$s0,$s1,$s2,$s3); | |
| 866 &encstep(1,$tbl,$s1,$s2,$s3,$s0); | |
| 867 &encstep(2,$tbl,$s2,$s3,$s0,$s1); | |
| 868 &encstep(3,$tbl,$s3,$s0,$s1,$s2); | |
| 869 } | |
| 870 &add ($key,16); # advance rd_key | |
| 871 &xor ($s0,&DWP(0,$key)); | |
| 872 &xor ($s1,&DWP(4,$key)); | |
| 873 &xor ($s2,&DWP(8,$key)); | |
| 874 &xor ($s3,&DWP(12,$key)); | |
| 875 &cmp ($key,$__end); | |
| 876 &mov ($__key,$key); | |
| 877 &jb (&label("loop")); | |
| 878 } | |
| 879 else { | |
| 880 &cmp ($acc,10); | |
| 881 &jle (&label("10rounds")); | |
| 882 &cmp ($acc,12); | |
| 883 &jle (&label("12rounds")); | |
| 884 | |
| 885 &set_label("14rounds",4); | |
| 886 for ($i=1;$i<3;$i++) { | |
| 887 if ($vertical_spin) { | |
| 888 &encvert($tbl,$s0,$s1,$s2,$s3); | |
| 889 } else { | |
| 890 &encstep(0,$tbl,$s0,$s1,$s2,$s3); | |
| 891 &encstep(1,$tbl,$s1,$s2,$s3,$s0); | |
| 892 &encstep(2,$tbl,$s2,$s3,$s0,$s1); | |
| 893 &encstep(3,$tbl,$s3,$s0,$s1,$s2); | |
| 894 } | |
| 895 &xor ($s0,&DWP(16*$i+0,$key)); | |
| 896 &xor ($s1,&DWP(16*$i+4,$key)); | |
| 897 &xor ($s2,&DWP(16*$i+8,$key)); | |
| 898 &xor ($s3,&DWP(16*$i+12,$key)); | |
| 899 } | |
| 900 &add ($key,32); | |
| 901 &mov ($__key,$key); # advance rd_key | |
| 902 &set_label("12rounds",4); | |
| 903 for ($i=1;$i<3;$i++) { | |
| 904 if ($vertical_spin) { | |
| 905 &encvert($tbl,$s0,$s1,$s2,$s3); | |
| 906 } else { | |
| 907 &encstep(0,$tbl,$s0,$s1,$s2,$s3); | |
| 908 &encstep(1,$tbl,$s1,$s2,$s3,$s0); | |
| 909 &encstep(2,$tbl,$s2,$s3,$s0,$s1); | |
| 910 &encstep(3,$tbl,$s3,$s0,$s1,$s2); | |
| 911 } | |
| 912 &xor ($s0,&DWP(16*$i+0,$key)); | |
| 913 &xor ($s1,&DWP(16*$i+4,$key)); | |
| 914 &xor ($s2,&DWP(16*$i+8,$key)); | |
| 915 &xor ($s3,&DWP(16*$i+12,$key)); | |
| 916 } | |
| 917 &add ($key,32); | |
| 918 &mov ($__key,$key); # advance rd_key | |
| 919 &set_label("10rounds",4); | |
| 920 for ($i=1;$i<10;$i++) { | |
| 921 if ($vertical_spin) { | |
| 922 &encvert($tbl,$s0,$s1,$s2,$s3); | |
| 923 } else { | |
| 924 &encstep(0,$tbl,$s0,$s1,$s2,$s3); | |
| 925 &encstep(1,$tbl,$s1,$s2,$s3,$s0); | |
| 926 &encstep(2,$tbl,$s2,$s3,$s0,$s1); | |
| 927 &encstep(3,$tbl,$s3,$s0,$s1,$s2); | |
| 928 } | |
| 929 &xor ($s0,&DWP(16*$i+0,$key)); | |
| 930 &xor ($s1,&DWP(16*$i+4,$key)); | |
| 931 &xor ($s2,&DWP(16*$i+8,$key)); | |
| 932 &xor ($s3,&DWP(16*$i+12,$key)); | |
| 933 } | |
| 934 } | |
| 935 | |
| 936 if ($vertical_spin) { | |
| 937 # "reincarnate" some registers for "horizontal" spin... | |
| 938 &mov ($s1="ebx",$key="edi"); | |
| 939 &mov ($s2="ecx",$acc="esi"); | |
| 940 } | |
| 941 &enclast(0,$tbl,$s0,$s1,$s2,$s3); | |
| 942 &enclast(1,$tbl,$s1,$s2,$s3,$s0); | |
| 943 &enclast(2,$tbl,$s2,$s3,$s0,$s1); | |
| 944 &enclast(3,$tbl,$s3,$s0,$s1,$s2); | |
| 945 | |
| 946 &add ($key,$small_footprint?16:160); | |
| 947 &xor ($s0,&DWP(0,$key)); | |
| 948 &xor ($s1,&DWP(4,$key)); | |
| 949 &xor ($s2,&DWP(8,$key)); | |
| 950 &xor ($s3,&DWP(12,$key)); | |
| 951 | |
| 952 &ret (); | |
| 953 | |
| 954 &set_label("AES_Te",64); # Yes! I keep it in the code segment! | |
| 955 &_data_word(0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6); | |
| 956 &_data_word(0x0df2f2ff, 0xbd6b6bd6, 0xb16f6fde, 0x54c5c591); | |
| 957 &_data_word(0x50303060, 0x03010102, 0xa96767ce, 0x7d2b2b56); | |
| 958 &_data_word(0x19fefee7, 0x62d7d7b5, 0xe6abab4d, 0x9a7676ec); | |
| 959 &_data_word(0x45caca8f, 0x9d82821f, 0x40c9c989, 0x877d7dfa); | |
| 960 &_data_word(0x15fafaef, 0xeb5959b2, 0xc947478e, 0x0bf0f0fb); | |
| 961 &_data_word(0xecadad41, 0x67d4d4b3, 0xfda2a25f, 0xeaafaf45); | |
| 962 &_data_word(0xbf9c9c23, 0xf7a4a453, 0x967272e4, 0x5bc0c09b); | |
| 963 &_data_word(0xc2b7b775, 0x1cfdfde1, 0xae93933d, 0x6a26264c); | |
| 964 &_data_word(0x5a36366c, 0x413f3f7e, 0x02f7f7f5, 0x4fcccc83); | |
| 965 &_data_word(0x5c343468, 0xf4a5a551, 0x34e5e5d1, 0x08f1f1f9); | |
| 966 &_data_word(0x937171e2, 0x73d8d8ab, 0x53313162, 0x3f15152a); | |
| 967 &_data_word(0x0c040408, 0x52c7c795, 0x65232346, 0x5ec3c39d); | |
| 968 &_data_word(0x28181830, 0xa1969637, 0x0f05050a, 0xb59a9a2f); | |
| 969 &_data_word(0x0907070e, 0x36121224, 0x9b80801b, 0x3de2e2df); | |
| 970 &_data_word(0x26ebebcd, 0x6927274e, 0xcdb2b27f, 0x9f7575ea); | |
| 971 &_data_word(0x1b090912, 0x9e83831d, 0x742c2c58, 0x2e1a1a34); | |
| 972 &_data_word(0x2d1b1b36, 0xb26e6edc, 0xee5a5ab4, 0xfba0a05b); | |
| 973 &_data_word(0xf65252a4, 0x4d3b3b76, 0x61d6d6b7, 0xceb3b37d); | |
| 974 &_data_word(0x7b292952, 0x3ee3e3dd, 0x712f2f5e, 0x97848413); | |
| 975 &_data_word(0xf55353a6, 0x68d1d1b9, 0x00000000, 0x2cededc1); | |
| 976 &_data_word(0x60202040, 0x1ffcfce3, 0xc8b1b179, 0xed5b5bb6); | |
| 977 &_data_word(0xbe6a6ad4, 0x46cbcb8d, 0xd9bebe67, 0x4b393972); | |
| 978 &_data_word(0xde4a4a94, 0xd44c4c98, 0xe85858b0, 0x4acfcf85); | |
| 979 &_data_word(0x6bd0d0bb, 0x2aefefc5, 0xe5aaaa4f, 0x16fbfbed); | |
| 980 &_data_word(0xc5434386, 0xd74d4d9a, 0x55333366, 0x94858511); | |
| 981 &_data_word(0xcf45458a, 0x10f9f9e9, 0x06020204, 0x817f7ffe); | |
| 982 &_data_word(0xf05050a0, 0x443c3c78, 0xba9f9f25, 0xe3a8a84b); | |
| 983 &_data_word(0xf35151a2, 0xfea3a35d, 0xc0404080, 0x8a8f8f05); | |
| 984 &_data_word(0xad92923f, 0xbc9d9d21, 0x48383870, 0x04f5f5f1); | |
| 985 &_data_word(0xdfbcbc63, 0xc1b6b677, 0x75dadaaf, 0x63212142); | |
| 986 &_data_word(0x30101020, 0x1affffe5, 0x0ef3f3fd, 0x6dd2d2bf); | |
| 987 &_data_word(0x4ccdcd81, 0x140c0c18, 0x35131326, 0x2fececc3); | |
| 988 &_data_word(0xe15f5fbe, 0xa2979735, 0xcc444488, 0x3917172e); | |
| 989 &_data_word(0x57c4c493, 0xf2a7a755, 0x827e7efc, 0x473d3d7a); | |
| 990 &_data_word(0xac6464c8, 0xe75d5dba, 0x2b191932, 0x957373e6); | |
| 991 &_data_word(0xa06060c0, 0x98818119, 0xd14f4f9e, 0x7fdcdca3); | |
| 992 &_data_word(0x66222244, 0x7e2a2a54, 0xab90903b, 0x8388880b); | |
| 993 &_data_word(0xca46468c, 0x29eeeec7, 0xd3b8b86b, 0x3c141428); | |
| 994 &_data_word(0x79dedea7, 0xe25e5ebc, 0x1d0b0b16, 0x76dbdbad); | |
| 995 &_data_word(0x3be0e0db, 0x56323264, 0x4e3a3a74, 0x1e0a0a14); | |
| 996 &_data_word(0xdb494992, 0x0a06060c, 0x6c242448, 0xe45c5cb8); | |
| 997 &_data_word(0x5dc2c29f, 0x6ed3d3bd, 0xefacac43, 0xa66262c4); | |
| 998 &_data_word(0xa8919139, 0xa4959531, 0x37e4e4d3, 0x8b7979f2); | |
| 999 &_data_word(0x32e7e7d5, 0x43c8c88b, 0x5937376e, 0xb76d6dda); | |
| 1000 &_data_word(0x8c8d8d01, 0x64d5d5b1, 0xd24e4e9c, 0xe0a9a949); | |
| 1001 &_data_word(0xb46c6cd8, 0xfa5656ac, 0x07f4f4f3, 0x25eaeacf); | |
| 1002 &_data_word(0xaf6565ca, 0x8e7a7af4, 0xe9aeae47, 0x18080810); | |
| 1003 &_data_word(0xd5baba6f, 0x887878f0, 0x6f25254a, 0x722e2e5c); | |
| 1004 &_data_word(0x241c1c38, 0xf1a6a657, 0xc7b4b473, 0x51c6c697); | |
| 1005 &_data_word(0x23e8e8cb, 0x7cdddda1, 0x9c7474e8, 0x211f1f3e); | |
| 1006 &_data_word(0xdd4b4b96, 0xdcbdbd61, 0x868b8b0d, 0x858a8a0f); | |
| 1007 &_data_word(0x907070e0, 0x423e3e7c, 0xc4b5b571, 0xaa6666cc); | |
| 1008 &_data_word(0xd8484890, 0x05030306, 0x01f6f6f7, 0x120e0e1c); | |
| 1009 &_data_word(0xa36161c2, 0x5f35356a, 0xf95757ae, 0xd0b9b969); | |
| 1010 &_data_word(0x91868617, 0x58c1c199, 0x271d1d3a, 0xb99e9e27); | |
| 1011 &_data_word(0x38e1e1d9, 0x13f8f8eb, 0xb398982b, 0x33111122); | |
| 1012 &_data_word(0xbb6969d2, 0x70d9d9a9, 0x898e8e07, 0xa7949433); | |
| 1013 &_data_word(0xb69b9b2d, 0x221e1e3c, 0x92878715, 0x20e9e9c9); | |
| 1014 &_data_word(0x49cece87, 0xff5555aa, 0x78282850, 0x7adfdfa5); | |
| 1015 &_data_word(0x8f8c8c03, 0xf8a1a159, 0x80898909, 0x170d0d1a); | |
| 1016 &_data_word(0xdabfbf65, 0x31e6e6d7, 0xc6424284, 0xb86868d0); | |
| 1017 &_data_word(0xc3414182, 0xb0999929, 0x772d2d5a, 0x110f0f1e); | |
| 1018 &_data_word(0xcbb0b07b, 0xfc5454a8, 0xd6bbbb6d, 0x3a16162c); | |
| 1019 | |
| 1020 #Te4 # four copies of Te4 to choose from to avoid L1 aliasing | |
| 1021 &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); | |
| 1022 &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); | |
| 1023 &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); | |
| 1024 &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); | |
| 1025 &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); | |
| 1026 &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); | |
| 1027 &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); | |
| 1028 &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); | |
| 1029 &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); | |
| 1030 &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); | |
| 1031 &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); | |
| 1032 &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); | |
| 1033 &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); | |
| 1034 &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); | |
| 1035 &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); | |
| 1036 &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); | |
| 1037 &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); | |
| 1038 &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); | |
| 1039 &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); | |
| 1040 &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); | |
| 1041 &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); | |
| 1042 &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); | |
| 1043 &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); | |
| 1044 &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); | |
| 1045 &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); | |
| 1046 &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); | |
| 1047 &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); | |
| 1048 &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); | |
| 1049 &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); | |
| 1050 &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); | |
| 1051 &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); | |
| 1052 &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); | |
| 1053 | |
| 1054 &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); | |
| 1055 &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); | |
| 1056 &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); | |
| 1057 &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); | |
| 1058 &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); | |
| 1059 &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); | |
| 1060 &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); | |
| 1061 &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); | |
| 1062 &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); | |
| 1063 &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); | |
| 1064 &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); | |
| 1065 &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); | |
| 1066 &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); | |
| 1067 &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); | |
| 1068 &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); | |
| 1069 &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); | |
| 1070 &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); | |
| 1071 &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); | |
| 1072 &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); | |
| 1073 &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); | |
| 1074 &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); | |
| 1075 &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); | |
| 1076 &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); | |
| 1077 &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); | |
| 1078 &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); | |
| 1079 &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); | |
| 1080 &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); | |
| 1081 &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); | |
| 1082 &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); | |
| 1083 &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); | |
| 1084 &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); | |
| 1085 &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); | |
| 1086 | |
| 1087 &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); | |
| 1088 &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); | |
| 1089 &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); | |
| 1090 &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); | |
| 1091 &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); | |
| 1092 &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); | |
| 1093 &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); | |
| 1094 &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); | |
| 1095 &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); | |
| 1096 &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); | |
| 1097 &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); | |
| 1098 &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); | |
| 1099 &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); | |
| 1100 &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); | |
| 1101 &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); | |
| 1102 &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); | |
| 1103 &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); | |
| 1104 &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); | |
| 1105 &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); | |
| 1106 &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); | |
| 1107 &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); | |
| 1108 &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); | |
| 1109 &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); | |
| 1110 &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); | |
| 1111 &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); | |
| 1112 &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); | |
| 1113 &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); | |
| 1114 &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); | |
| 1115 &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); | |
| 1116 &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); | |
| 1117 &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); | |
| 1118 &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); | |
| 1119 | |
| 1120 &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); | |
| 1121 &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); | |
| 1122 &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); | |
| 1123 &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); | |
| 1124 &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); | |
| 1125 &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); | |
| 1126 &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); | |
| 1127 &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); | |
| 1128 &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); | |
| 1129 &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); | |
| 1130 &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); | |
| 1131 &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); | |
| 1132 &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); | |
| 1133 &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); | |
| 1134 &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); | |
| 1135 &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); | |
| 1136 &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); | |
| 1137 &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); | |
| 1138 &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); | |
| 1139 &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); | |
| 1140 &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); | |
| 1141 &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); | |
| 1142 &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); | |
| 1143 &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); | |
| 1144 &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); | |
| 1145 &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); | |
| 1146 &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); | |
| 1147 &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); | |
| 1148 &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); | |
| 1149 &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); | |
| 1150 &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); | |
| 1151 &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); | |
| 1152 #rcon: | |
| 1153 &data_word(0x00000001, 0x00000002, 0x00000004, 0x00000008); | |
| 1154 &data_word(0x00000010, 0x00000020, 0x00000040, 0x00000080); | |
| 1155 &data_word(0x0000001b, 0x00000036, 0x00000000, 0x00000000); | |
| 1156 &data_word(0x00000000, 0x00000000, 0x00000000, 0x00000000); | |
| 1157 &function_end_B("_x86_AES_encrypt"); | |
| 1158 | |
| 1159 # void AES_encrypt (const void *inp,void *out,const AES_KEY *key); | |
| 1160 &function_begin("AES_encrypt"); | |
| 1161 &mov ($acc,&wparam(0)); # load inp | |
| 1162 &mov ($key,&wparam(2)); # load key | |
| 1163 | |
| 1164 &mov ($s0,"esp"); | |
| 1165 &sub ("esp",36); | |
| 1166 &and ("esp",-64); # align to cache-line | |
| 1167 | |
| 1168 # place stack frame just "above" the key schedule | |
| 1169 &lea ($s1,&DWP(-64-63,$key)); | |
| 1170 &sub ($s1,"esp"); | |
| 1171 &neg ($s1); | |
| 1172 &and ($s1,0x3C0); # modulo 1024, but aligned to cache-line | |
| 1173 &sub ("esp",$s1); | |
| 1174 &add ("esp",4); # 4 is reserved for caller's return address | |
| 1175 &mov ($_esp,$s0); # save stack pointer | |
| 1176 | |
| 1177 &call (&label("pic_point")); # make it PIC! | |
| 1178 &set_label("pic_point"); | |
| 1179 &blindpop($tbl); | |
| 1180 &picmeup($s0,"OPENSSL_ia32cap_P",$tbl,&label("pic_point")) if (!$x86only
); | |
| 1181 &lea ($tbl,&DWP(&label("AES_Te")."-".&label("pic_point"),$tbl)); | |
| 1182 | |
| 1183 # pick Te4 copy which can't "overlap" with stack frame or key schedule | |
| 1184 &lea ($s1,&DWP(768-4,"esp")); | |
| 1185 &sub ($s1,$tbl); | |
| 1186 &and ($s1,0x300); | |
| 1187 &lea ($tbl,&DWP(2048+128,$tbl,$s1)); | |
| 1188 | |
| 1189 if (!$x86only) { | |
| 1190 &bt (&DWP(0,$s0),25); # check for SSE bit | |
| 1191 &jnc (&label("x86")); | |
| 1192 | |
| 1193 &movq ("mm0",&QWP(0,$acc)); | |
| 1194 &movq ("mm4",&QWP(8,$acc)); | |
| 1195 &call ("_sse_AES_encrypt_compact"); | |
| 1196 &mov ("esp",$_esp); # restore stack pointer | |
| 1197 &mov ($acc,&wparam(1)); # load out | |
| 1198 &movq (&QWP(0,$acc),"mm0"); # write output data | |
| 1199 &movq (&QWP(8,$acc),"mm4"); | |
| 1200 &emms (); | |
| 1201 &function_end_A(); | |
| 1202 } | |
| 1203 &set_label("x86",16); | |
| 1204 &mov ($_tbl,$tbl); | |
| 1205 &mov ($s0,&DWP(0,$acc)); # load input data | |
| 1206 &mov ($s1,&DWP(4,$acc)); | |
| 1207 &mov ($s2,&DWP(8,$acc)); | |
| 1208 &mov ($s3,&DWP(12,$acc)); | |
| 1209 &call ("_x86_AES_encrypt_compact"); | |
| 1210 &mov ("esp",$_esp); # restore stack pointer | |
| 1211 &mov ($acc,&wparam(1)); # load out | |
| 1212 &mov (&DWP(0,$acc),$s0); # write output data | |
| 1213 &mov (&DWP(4,$acc),$s1); | |
| 1214 &mov (&DWP(8,$acc),$s2); | |
| 1215 &mov (&DWP(12,$acc),$s3); | |
| 1216 &function_end("AES_encrypt"); | |
| 1217 | |
| 1218 #--------------------------------------------------------------------# | |
| 1219 | |
| 1220 ###################################################################### | |
| 1221 # "Compact" block function | |
| 1222 ###################################################################### | |
| 1223 | |
| 1224 sub deccompact() | |
| 1225 { my $Fn = mov; | |
| 1226 while ($#_>5) { pop(@_); $Fn=sub{}; } | |
| 1227 my ($i,$td,@s)=@_; | |
| 1228 my $tmp = $key; | |
| 1229 my $out = $i==3?$s[0]:$acc; | |
| 1230 | |
| 1231 # $Fn is used in first compact round and its purpose is to | |
| 1232 # void restoration of some values from stack, so that after | |
| 1233 # 4xdeccompact with extra argument $key, $s0 and $s1 values | |
| 1234 # are left there... | |
| 1235 if($i==3) { &$Fn ($key,$__key); } | |
| 1236 else { &mov ($out,$s[0]); } | |
| 1237 &and ($out,0xFF); | |
| 1238 &movz ($out,&BP(-128,$td,$out,1)); | |
| 1239 | |
| 1240 if ($i==3) { $tmp=$s[1]; } | |
| 1241 &movz ($tmp,&HB($s[1])); | |
| 1242 &movz ($tmp,&BP(-128,$td,$tmp,1)); | |
| 1243 &shl ($tmp,8); | |
| 1244 &xor ($out,$tmp); | |
| 1245 | |
| 1246 if ($i==3) { $tmp=$s[2]; &mov ($s[1],$acc); } | |
| 1247 else { mov ($tmp,$s[2]); } | |
| 1248 &shr ($tmp,16); | |
| 1249 &and ($tmp,0xFF); | |
| 1250 &movz ($tmp,&BP(-128,$td,$tmp,1)); | |
| 1251 &shl ($tmp,16); | |
| 1252 &xor ($out,$tmp); | |
| 1253 | |
| 1254 if ($i==3) { $tmp=$s[3]; &$Fn ($s[2],$__s1); } | |
| 1255 else { &mov ($tmp,$s[3]); } | |
| 1256 &shr ($tmp,24); | |
| 1257 &movz ($tmp,&BP(-128,$td,$tmp,1)); | |
| 1258 &shl ($tmp,24); | |
| 1259 &xor ($out,$tmp); | |
| 1260 if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } | |
| 1261 if ($i==3) { &$Fn ($s[3],$__s0); } | |
| 1262 } | |
| 1263 | |
| 1264 # must be called with 2,3,0,1 as argument sequence!!! | |
| 1265 sub dectransform() | |
| 1266 { my @s = ($s0,$s1,$s2,$s3); | |
| 1267 my $i = shift; | |
| 1268 my $tmp = $key; | |
| 1269 my $tp2 = @s[($i+2)%4]; $tp2 = @s[2] if ($i==1); | |
| 1270 my $tp4 = @s[($i+3)%4]; $tp4 = @s[3] if ($i==1); | |
| 1271 my $tp8 = $tbl; | |
| 1272 | |
| 1273 &mov ($acc,$s[$i]); | |
| 1274 &and ($acc,0x80808080); | |
| 1275 &mov ($tmp,$acc); | |
| 1276 &shr ($tmp,7); | |
| 1277 &lea ($tp2,&DWP(0,$s[$i],$s[$i])); | |
| 1278 &sub ($acc,$tmp); | |
| 1279 &and ($tp2,0xfefefefe); | |
| 1280 &and ($acc,0x1b1b1b1b); | |
| 1281 &xor ($acc,$tp2); | |
| 1282 &mov ($tp2,$acc); | |
| 1283 | |
| 1284 &and ($acc,0x80808080); | |
| 1285 &mov ($tmp,$acc); | |
| 1286 &shr ($tmp,7); | |
| 1287 &lea ($tp4,&DWP(0,$tp2,$tp2)); | |
| 1288 &sub ($acc,$tmp); | |
| 1289 &and ($tp4,0xfefefefe); | |
| 1290 &and ($acc,0x1b1b1b1b); | |
| 1291 &xor ($tp2,$s[$i]); # tp2^tp1 | |
| 1292 &xor ($acc,$tp4); | |
| 1293 &mov ($tp4,$acc); | |
| 1294 | |
| 1295 &and ($acc,0x80808080); | |
| 1296 &mov ($tmp,$acc); | |
| 1297 &shr ($tmp,7); | |
| 1298 &lea ($tp8,&DWP(0,$tp4,$tp4)); | |
| 1299 &sub ($acc,$tmp); | |
| 1300 &and ($tp8,0xfefefefe); | |
| 1301 &and ($acc,0x1b1b1b1b); | |
| 1302 &xor ($tp4,$s[$i]); # tp4^tp1 | |
| 1303 &rotl ($s[$i],8); # = ROTATE(tp1,8) | |
| 1304 &xor ($tp8,$acc); | |
| 1305 | |
| 1306 &xor ($s[$i],$tp2); | |
| 1307 &xor ($tp2,$tp8); | |
| 1308 &rotl ($tp2,24); | |
| 1309 &xor ($s[$i],$tp4); | |
| 1310 &xor ($tp4,$tp8); | |
| 1311 &rotl ($tp4,16); | |
| 1312 &xor ($s[$i],$tp8); # ^= tp8^(tp4^tp1)^(tp2^tp1) | |
| 1313 &rotl ($tp8,8); | |
| 1314 &xor ($s[$i],$tp2); # ^= ROTATE(tp8^tp2^tp1,24) | |
| 1315 &xor ($s[$i],$tp4); # ^= ROTATE(tp8^tp4^tp1,16) | |
| 1316 &mov ($s[0],$__s0) if($i==2); #prefetch $s0 | |
| 1317 &mov ($s[1],$__s1) if($i==3); #prefetch $s1 | |
| 1318 &mov ($s[2],$__s2) if($i==1); | |
| 1319 &xor ($s[$i],$tp8); # ^= ROTATE(tp8,8) | |
| 1320 | |
| 1321 &mov ($s[3],$__s3) if($i==1); | |
| 1322 &mov (&DWP(4+4*$i,"esp"),$s[$i]) if($i>=2); | |
| 1323 } | |
| 1324 | |
| 1325 &function_begin_B("_x86_AES_decrypt_compact"); | |
| 1326 # note that caller is expected to allocate stack frame for me! | |
| 1327 &mov ($__key,$key); # save key | |
| 1328 | |
| 1329 &xor ($s0,&DWP(0,$key)); # xor with key | |
| 1330 &xor ($s1,&DWP(4,$key)); | |
| 1331 &xor ($s2,&DWP(8,$key)); | |
| 1332 &xor ($s3,&DWP(12,$key)); | |
| 1333 | |
| 1334 &mov ($acc,&DWP(240,$key)); # load key->rounds | |
| 1335 | |
| 1336 &lea ($acc,&DWP(-2,$acc,$acc)); | |
| 1337 &lea ($acc,&DWP(0,$key,$acc,8)); | |
| 1338 &mov ($__end,$acc); # end of key schedule | |
| 1339 | |
| 1340 # prefetch Td4 | |
| 1341 &mov ($key,&DWP(0-128,$tbl)); | |
| 1342 &mov ($acc,&DWP(32-128,$tbl)); | |
| 1343 &mov ($key,&DWP(64-128,$tbl)); | |
| 1344 &mov ($acc,&DWP(96-128,$tbl)); | |
| 1345 &mov ($key,&DWP(128-128,$tbl)); | |
| 1346 &mov ($acc,&DWP(160-128,$tbl)); | |
| 1347 &mov ($key,&DWP(192-128,$tbl)); | |
| 1348 &mov ($acc,&DWP(224-128,$tbl)); | |
| 1349 | |
| 1350 &set_label("loop",16); | |
| 1351 | |
| 1352 &deccompact(0,$tbl,$s0,$s3,$s2,$s1,1); | |
| 1353 &deccompact(1,$tbl,$s1,$s0,$s3,$s2,1); | |
| 1354 &deccompact(2,$tbl,$s2,$s1,$s0,$s3,1); | |
| 1355 &deccompact(3,$tbl,$s3,$s2,$s1,$s0,1); | |
| 1356 &dectransform(2); | |
| 1357 &dectransform(3); | |
| 1358 &dectransform(0); | |
| 1359 &dectransform(1); | |
| 1360 &mov ($key,$__key); | |
| 1361 &mov ($tbl,$__tbl); | |
| 1362 &add ($key,16); # advance rd_key | |
| 1363 &xor ($s0,&DWP(0,$key)); | |
| 1364 &xor ($s1,&DWP(4,$key)); | |
| 1365 &xor ($s2,&DWP(8,$key)); | |
| 1366 &xor ($s3,&DWP(12,$key)); | |
| 1367 | |
| 1368 &cmp ($key,$__end); | |
| 1369 &mov ($__key,$key); | |
| 1370 &jb (&label("loop")); | |
| 1371 | |
| 1372 &deccompact(0,$tbl,$s0,$s3,$s2,$s1); | |
| 1373 &deccompact(1,$tbl,$s1,$s0,$s3,$s2); | |
| 1374 &deccompact(2,$tbl,$s2,$s1,$s0,$s3); | |
| 1375 &deccompact(3,$tbl,$s3,$s2,$s1,$s0); | |
| 1376 | |
| 1377 &xor ($s0,&DWP(16,$key)); | |
| 1378 &xor ($s1,&DWP(20,$key)); | |
| 1379 &xor ($s2,&DWP(24,$key)); | |
| 1380 &xor ($s3,&DWP(28,$key)); | |
| 1381 | |
| 1382 &ret (); | |
| 1383 &function_end_B("_x86_AES_decrypt_compact"); | |
| 1384 | |
| 1385 ###################################################################### | |
| 1386 # "Compact" SSE block function. | |
| 1387 ###################################################################### | |
| 1388 | |
| 1389 sub sse_deccompact() | |
| 1390 { | |
| 1391 &pshufw ("mm1","mm0",0x0c); # 7, 6, 1, 0 | |
| 1392 &movd ("eax","mm1"); # 7, 6, 1, 0 | |
| 1393 | |
| 1394 &pshufw ("mm5","mm4",0x09); # 13,12,11,10 | |
| 1395 &movz ($acc,&LB("eax")); # 0 | |
| 1396 &movz ("ecx",&BP(-128,$tbl,$acc,1)); # 0 | |
| 1397 &movd ("ebx","mm5"); # 13,12,11,10 | |
| 1398 &movz ("edx",&HB("eax")); # 1 | |
| 1399 &movz ("edx",&BP(-128,$tbl,"edx",1)); # 1 | |
| 1400 &shl ("edx",8); # 1 | |
| 1401 | |
| 1402 &pshufw ("mm2","mm0",0x06); # 3, 2, 5, 4 | |
| 1403 &movz ($acc,&LB("ebx")); # 10 | |
| 1404 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 10 | |
| 1405 &shl ($acc,16); # 10 | |
| 1406 &or ("ecx",$acc); # 10 | |
| 1407 &shr ("eax",16); # 7, 6 | |
| 1408 &movz ($acc,&HB("ebx")); # 11 | |
| 1409 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 11 | |
| 1410 &shl ($acc,24); # 11 | |
| 1411 &or ("edx",$acc); # 11 | |
| 1412 &shr ("ebx",16); # 13,12 | |
| 1413 | |
| 1414 &pshufw ("mm6","mm4",0x03); # 9, 8,15,14 | |
| 1415 &movz ($acc,&HB("eax")); # 7 | |
| 1416 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 7 | |
| 1417 &shl ($acc,24); # 7 | |
| 1418 &or ("ecx",$acc); # 7 | |
| 1419 &movz ($acc,&HB("ebx")); # 13 | |
| 1420 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 13 | |
| 1421 &shl ($acc,8); # 13 | |
| 1422 &or ("ecx",$acc); # 13 | |
| 1423 &movd ("mm0","ecx"); # t[0] collected | |
| 1424 | |
| 1425 &movz ($acc,&LB("eax")); # 6 | |
| 1426 &movd ("eax","mm2"); # 3, 2, 5, 4 | |
| 1427 &movz ("ecx",&BP(-128,$tbl,$acc,1)); # 6 | |
| 1428 &shl ("ecx",16); # 6 | |
| 1429 &movz ($acc,&LB("ebx")); # 12 | |
| 1430 &movd ("ebx","mm6"); # 9, 8,15,14 | |
| 1431 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 12 | |
| 1432 &or ("ecx",$acc); # 12 | |
| 1433 | |
| 1434 &movz ($acc,&LB("eax")); # 4 | |
| 1435 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 4 | |
| 1436 &or ("edx",$acc); # 4 | |
| 1437 &movz ($acc,&LB("ebx")); # 14 | |
| 1438 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 14 | |
| 1439 &shl ($acc,16); # 14 | |
| 1440 &or ("edx",$acc); # 14 | |
| 1441 &movd ("mm1","edx"); # t[1] collected | |
| 1442 | |
| 1443 &movz ($acc,&HB("eax")); # 5 | |
| 1444 &movz ("edx",&BP(-128,$tbl,$acc,1)); # 5 | |
| 1445 &shl ("edx",8); # 5 | |
| 1446 &movz ($acc,&HB("ebx")); # 15 | |
| 1447 &shr ("eax",16); # 3, 2 | |
| 1448 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 15 | |
| 1449 &shl ($acc,24); # 15 | |
| 1450 &or ("edx",$acc); # 15 | |
| 1451 &shr ("ebx",16); # 9, 8 | |
| 1452 | |
| 1453 &punpckldq ("mm0","mm1"); # t[0,1] collected | |
| 1454 | |
| 1455 &movz ($acc,&HB("ebx")); # 9 | |
| 1456 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 9 | |
| 1457 &shl ($acc,8); # 9 | |
| 1458 &or ("ecx",$acc); # 9 | |
| 1459 &and ("ebx",0xff); # 8 | |
| 1460 &movz ("ebx",&BP(-128,$tbl,"ebx",1)); # 8 | |
| 1461 &or ("edx","ebx"); # 8 | |
| 1462 &movz ($acc,&LB("eax")); # 2 | |
| 1463 &movz ($acc,&BP(-128,$tbl,$acc,1)); # 2 | |
| 1464 &shl ($acc,16); # 2 | |
| 1465 &or ("edx",$acc); # 2 | |
| 1466 &movd ("mm4","edx"); # t[2] collected | |
| 1467 &movz ("eax",&HB("eax")); # 3 | |
| 1468 &movz ("eax",&BP(-128,$tbl,"eax",1)); # 3 | |
| 1469 &shl ("eax",24); # 3 | |
| 1470 &or ("ecx","eax"); # 3 | |
| 1471 &movd ("mm5","ecx"); # t[3] collected | |
| 1472 | |
| 1473 &punpckldq ("mm4","mm5"); # t[2,3] collected | |
| 1474 } | |
| 1475 | |
| 1476 if (!$x86only) { | |
| 1477 &function_begin_B("_sse_AES_decrypt_compact"); | |
| 1478 &pxor ("mm0",&QWP(0,$key)); # 7, 6, 5, 4, 3, 2, 1, 0 | |
| 1479 &pxor ("mm4",&QWP(8,$key)); # 15,14,13,12,11,10, 9, 8 | |
| 1480 | |
| 1481 # note that caller is expected to allocate stack frame for me! | |
| 1482 &mov ($acc,&DWP(240,$key)); # load key->rounds | |
| 1483 &lea ($acc,&DWP(-2,$acc,$acc)); | |
| 1484 &lea ($acc,&DWP(0,$key,$acc,8)); | |
| 1485 &mov ($__end,$acc); # end of key schedule | |
| 1486 | |
| 1487 &mov ($s0,0x1b1b1b1b); # magic constant | |
| 1488 &mov (&DWP(8,"esp"),$s0); | |
| 1489 &mov (&DWP(12,"esp"),$s0); | |
| 1490 | |
| 1491 # prefetch Td4 | |
| 1492 &mov ($s0,&DWP(0-128,$tbl)); | |
| 1493 &mov ($s1,&DWP(32-128,$tbl)); | |
| 1494 &mov ($s2,&DWP(64-128,$tbl)); | |
| 1495 &mov ($s3,&DWP(96-128,$tbl)); | |
| 1496 &mov ($s0,&DWP(128-128,$tbl)); | |
| 1497 &mov ($s1,&DWP(160-128,$tbl)); | |
| 1498 &mov ($s2,&DWP(192-128,$tbl)); | |
| 1499 &mov ($s3,&DWP(224-128,$tbl)); | |
| 1500 | |
| 1501 &set_label("loop",16); | |
| 1502 &sse_deccompact(); | |
| 1503 &add ($key,16); | |
| 1504 &cmp ($key,$__end); | |
| 1505 &ja (&label("out")); | |
| 1506 | |
| 1507 # ROTATE(x^y,N) == ROTATE(x,N)^ROTATE(y,N) | |
| 1508 &movq ("mm3","mm0"); &movq ("mm7","mm4"); | |
| 1509 &movq ("mm2","mm0",1); &movq ("mm6","mm4",1); | |
| 1510 &movq ("mm1","mm0"); &movq ("mm5","mm4"); | |
| 1511 &pshufw ("mm0","mm0",0xb1); &pshufw ("mm4","mm4",0xb1);# = R
OTATE(tp0,16) | |
| 1512 &pslld ("mm2",8); &pslld ("mm6",8); | |
| 1513 &psrld ("mm3",8); &psrld ("mm7",8); | |
| 1514 &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= tp0
<<8 | |
| 1515 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp0
>>8 | |
| 1516 &pslld ("mm2",16); &pslld ("mm6",16); | |
| 1517 &psrld ("mm3",16); &psrld ("mm7",16); | |
| 1518 &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= tp0
<<24 | |
| 1519 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp0
>>24 | |
| 1520 | |
| 1521 &movq ("mm3",&QWP(8,"esp")); | |
| 1522 &pxor ("mm2","mm2"); &pxor ("mm6","mm6"); | |
| 1523 &pcmpgtb("mm2","mm1"); &pcmpgtb("mm6","mm5"); | |
| 1524 &pand ("mm2","mm3"); &pand ("mm6","mm3"); | |
| 1525 &paddb ("mm1","mm1"); &paddb ("mm5","mm5"); | |
| 1526 &pxor ("mm1","mm2"); &pxor ("mm5","mm6"); # tp2 | |
| 1527 &movq ("mm3","mm1"); &movq ("mm7","mm5"); | |
| 1528 &movq ("mm2","mm1"); &movq ("mm6","mm5"); | |
| 1529 &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp2 | |
| 1530 &pslld ("mm3",24); &pslld ("mm7",24); | |
| 1531 &psrld ("mm2",8); &psrld ("mm6",8); | |
| 1532 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp2
<<24 | |
| 1533 &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= tp2
>>8 | |
| 1534 | |
| 1535 &movq ("mm2",&QWP(8,"esp")); | |
| 1536 &pxor ("mm3","mm3"); &pxor ("mm7","mm7"); | |
| 1537 &pcmpgtb("mm3","mm1"); &pcmpgtb("mm7","mm5"); | |
| 1538 &pand ("mm3","mm2"); &pand ("mm7","mm2"); | |
| 1539 &paddb ("mm1","mm1"); &paddb ("mm5","mm5"); | |
| 1540 &pxor ("mm1","mm3"); &pxor ("mm5","mm7"); # tp4 | |
| 1541 &pshufw ("mm3","mm1",0xb1); &pshufw ("mm7","mm5",0xb1); | |
| 1542 &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp4 | |
| 1543 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= ROT
ATE(tp4,16) | |
| 1544 | |
| 1545 &pxor ("mm3","mm3"); &pxor ("mm7","mm7"); | |
| 1546 &pcmpgtb("mm3","mm1"); &pcmpgtb("mm7","mm5"); | |
| 1547 &pand ("mm3","mm2"); &pand ("mm7","mm2"); | |
| 1548 &paddb ("mm1","mm1"); &paddb ("mm5","mm5"); | |
| 1549 &pxor ("mm1","mm3"); &pxor ("mm5","mm7"); # tp8 | |
| 1550 &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp8 | |
| 1551 &movq ("mm3","mm1"); &movq ("mm7","mm5"); | |
| 1552 &pshufw ("mm2","mm1",0xb1); &pshufw ("mm6","mm5",0xb1); | |
| 1553 &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= ROT
ATE(tp8,16) | |
| 1554 &pslld ("mm1",8); &pslld ("mm5",8); | |
| 1555 &psrld ("mm3",8); &psrld ("mm7",8); | |
| 1556 &movq ("mm2",&QWP(0,$key)); &movq ("mm6",&QWP(8,$key)); | |
| 1557 &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp8
<<8 | |
| 1558 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp8
>>8 | |
| 1559 &mov ($s0,&DWP(0-128,$tbl)); | |
| 1560 &pslld ("mm1",16); &pslld ("mm5",16); | |
| 1561 &mov ($s1,&DWP(64-128,$tbl)); | |
| 1562 &psrld ("mm3",16); &psrld ("mm7",16); | |
| 1563 &mov ($s2,&DWP(128-128,$tbl)); | |
| 1564 &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp8
<<24 | |
| 1565 &mov ($s3,&DWP(192-128,$tbl)); | |
| 1566 &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp8
>>24 | |
| 1567 | |
| 1568 &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); | |
| 1569 &jmp (&label("loop")); | |
| 1570 | |
| 1571 &set_label("out",16); | |
| 1572 &pxor ("mm0",&QWP(0,$key)); | |
| 1573 &pxor ("mm4",&QWP(8,$key)); | |
| 1574 | |
| 1575 &ret (); | |
| 1576 &function_end_B("_sse_AES_decrypt_compact"); | |
| 1577 } | |
| 1578 | |
| 1579 ###################################################################### | |
| 1580 # Vanilla block function. | |
| 1581 ###################################################################### | |
| 1582 | |
| 1583 sub decstep() | |
| 1584 { my ($i,$td,@s) = @_; | |
| 1585 my $tmp = $key; | |
| 1586 my $out = $i==3?$s[0]:$acc; | |
| 1587 | |
| 1588 # no instructions are reordered, as performance appears | |
| 1589 # optimal... or rather that all attempts to reorder didn't | |
| 1590 # result in better performance [which by the way is not a | |
| 1591 # bit lower than ecryption]. | |
| 1592 if($i==3) { &mov ($key,$__key); } | |
| 1593 else { &mov ($out,$s[0]); } | |
| 1594 &and ($out,0xFF); | |
| 1595 &mov ($out,&DWP(0,$td,$out,8)); | |
| 1596 | |
| 1597 if ($i==3) { $tmp=$s[1]; } | |
| 1598 &movz ($tmp,&HB($s[1])); | |
| 1599 &xor ($out,&DWP(3,$td,$tmp,8)); | |
| 1600 | |
| 1601 if ($i==3) { $tmp=$s[2]; &mov ($s[1],$acc); } | |
| 1602 else { &mov ($tmp,$s[2]); } | |
| 1603 &shr ($tmp,16); | |
| 1604 &and ($tmp,0xFF); | |
| 1605 &xor ($out,&DWP(2,$td,$tmp,8)); | |
| 1606 | |
| 1607 if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); } | |
| 1608 else { &mov ($tmp,$s[3]); } | |
| 1609 &shr ($tmp,24); | |
| 1610 &xor ($out,&DWP(1,$td,$tmp,8)); | |
| 1611 if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } | |
| 1612 if ($i==3) { &mov ($s[3],$__s0); } | |
| 1613 &comment(); | |
| 1614 } | |
| 1615 | |
| 1616 sub declast() | |
| 1617 { my ($i,$td,@s)=@_; | |
| 1618 my $tmp = $key; | |
| 1619 my $out = $i==3?$s[0]:$acc; | |
| 1620 | |
| 1621 if($i==0) { &lea ($td,&DWP(2048+128,$td)); | |
| 1622 &mov ($tmp,&DWP(0-128,$td)); | |
| 1623 &mov ($acc,&DWP(32-128,$td)); | |
| 1624 &mov ($tmp,&DWP(64-128,$td)); | |
| 1625 &mov ($acc,&DWP(96-128,$td)); | |
| 1626 &mov ($tmp,&DWP(128-128,$td)); | |
| 1627 &mov ($acc,&DWP(160-128,$td)); | |
| 1628 &mov ($tmp,&DWP(192-128,$td)); | |
| 1629 &mov ($acc,&DWP(224-128,$td)); | |
| 1630 &lea ($td,&DWP(-128,$td)); } | |
| 1631 if($i==3) { &mov ($key,$__key); } | |
| 1632 else { &mov ($out,$s[0]); } | |
| 1633 &and ($out,0xFF); | |
| 1634 &movz ($out,&BP(0,$td,$out,1)); | |
| 1635 | |
| 1636 if ($i==3) { $tmp=$s[1]; } | |
| 1637 &movz ($tmp,&HB($s[1])); | |
| 1638 &movz ($tmp,&BP(0,$td,$tmp,1)); | |
| 1639 &shl ($tmp,8); | |
| 1640 &xor ($out,$tmp); | |
| 1641 | |
| 1642 if ($i==3) { $tmp=$s[2]; &mov ($s[1],$acc); } | |
| 1643 else { mov ($tmp,$s[2]); } | |
| 1644 &shr ($tmp,16); | |
| 1645 &and ($tmp,0xFF); | |
| 1646 &movz ($tmp,&BP(0,$td,$tmp,1)); | |
| 1647 &shl ($tmp,16); | |
| 1648 &xor ($out,$tmp); | |
| 1649 | |
| 1650 if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); } | |
| 1651 else { &mov ($tmp,$s[3]); } | |
| 1652 &shr ($tmp,24); | |
| 1653 &movz ($tmp,&BP(0,$td,$tmp,1)); | |
| 1654 &shl ($tmp,24); | |
| 1655 &xor ($out,$tmp); | |
| 1656 if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } | |
| 1657 if ($i==3) { &mov ($s[3],$__s0); | |
| 1658 &lea ($td,&DWP(-2048,$td)); } | |
| 1659 } | |
| 1660 | |
| 1661 &function_begin_B("_x86_AES_decrypt"); | |
| 1662 # note that caller is expected to allocate stack frame for me! | |
| 1663 &mov ($__key,$key); # save key | |
| 1664 | |
| 1665 &xor ($s0,&DWP(0,$key)); # xor with key | |
| 1666 &xor ($s1,&DWP(4,$key)); | |
| 1667 &xor ($s2,&DWP(8,$key)); | |
| 1668 &xor ($s3,&DWP(12,$key)); | |
| 1669 | |
| 1670 &mov ($acc,&DWP(240,$key)); # load key->rounds | |
| 1671 | |
| 1672 if ($small_footprint) { | |
| 1673 &lea ($acc,&DWP(-2,$acc,$acc)); | |
| 1674 &lea ($acc,&DWP(0,$key,$acc,8)); | |
| 1675 &mov ($__end,$acc); # end of key schedule | |
| 1676 &set_label("loop",16); | |
| 1677 &decstep(0,$tbl,$s0,$s3,$s2,$s1); | |
| 1678 &decstep(1,$tbl,$s1,$s0,$s3,$s2); | |
| 1679 &decstep(2,$tbl,$s2,$s1,$s0,$s3); | |
| 1680 &decstep(3,$tbl,$s3,$s2,$s1,$s0); | |
| 1681 &add ($key,16); # advance rd_key | |
| 1682 &xor ($s0,&DWP(0,$key)); | |
| 1683 &xor ($s1,&DWP(4,$key)); | |
| 1684 &xor ($s2,&DWP(8,$key)); | |
| 1685 &xor ($s3,&DWP(12,$key)); | |
| 1686 &cmp ($key,$__end); | |
| 1687 &mov ($__key,$key); | |
| 1688 &jb (&label("loop")); | |
| 1689 } | |
| 1690 else { | |
| 1691 &cmp ($acc,10); | |
| 1692 &jle (&label("10rounds")); | |
| 1693 &cmp ($acc,12); | |
| 1694 &jle (&label("12rounds")); | |
| 1695 | |
| 1696 &set_label("14rounds",4); | |
| 1697 for ($i=1;$i<3;$i++) { | |
| 1698 &decstep(0,$tbl,$s0,$s3,$s2,$s1); | |
| 1699 &decstep(1,$tbl,$s1,$s0,$s3,$s2); | |
| 1700 &decstep(2,$tbl,$s2,$s1,$s0,$s3); | |
| 1701 &decstep(3,$tbl,$s3,$s2,$s1,$s0); | |
| 1702 &xor ($s0,&DWP(16*$i+0,$key)); | |
| 1703 &xor ($s1,&DWP(16*$i+4,$key)); | |
| 1704 &xor ($s2,&DWP(16*$i+8,$key)); | |
| 1705 &xor ($s3,&DWP(16*$i+12,$key)); | |
| 1706 } | |
| 1707 &add ($key,32); | |
| 1708 &mov ($__key,$key); # advance rd_key | |
| 1709 &set_label("12rounds",4); | |
| 1710 for ($i=1;$i<3;$i++) { | |
| 1711 &decstep(0,$tbl,$s0,$s3,$s2,$s1); | |
| 1712 &decstep(1,$tbl,$s1,$s0,$s3,$s2); | |
| 1713 &decstep(2,$tbl,$s2,$s1,$s0,$s3); | |
| 1714 &decstep(3,$tbl,$s3,$s2,$s1,$s0); | |
| 1715 &xor ($s0,&DWP(16*$i+0,$key)); | |
| 1716 &xor ($s1,&DWP(16*$i+4,$key)); | |
| 1717 &xor ($s2,&DWP(16*$i+8,$key)); | |
| 1718 &xor ($s3,&DWP(16*$i+12,$key)); | |
| 1719 } | |
| 1720 &add ($key,32); | |
| 1721 &mov ($__key,$key); # advance rd_key | |
| 1722 &set_label("10rounds",4); | |
| 1723 for ($i=1;$i<10;$i++) { | |
| 1724 &decstep(0,$tbl,$s0,$s3,$s2,$s1); | |
| 1725 &decstep(1,$tbl,$s1,$s0,$s3,$s2); | |
| 1726 &decstep(2,$tbl,$s2,$s1,$s0,$s3); | |
| 1727 &decstep(3,$tbl,$s3,$s2,$s1,$s0); | |
| 1728 &xor ($s0,&DWP(16*$i+0,$key)); | |
| 1729 &xor ($s1,&DWP(16*$i+4,$key)); | |
| 1730 &xor ($s2,&DWP(16*$i+8,$key)); | |
| 1731 &xor ($s3,&DWP(16*$i+12,$key)); | |
| 1732 } | |
| 1733 } | |
| 1734 | |
| 1735 &declast(0,$tbl,$s0,$s3,$s2,$s1); | |
| 1736 &declast(1,$tbl,$s1,$s0,$s3,$s2); | |
| 1737 &declast(2,$tbl,$s2,$s1,$s0,$s3); | |
| 1738 &declast(3,$tbl,$s3,$s2,$s1,$s0); | |
| 1739 | |
| 1740 &add ($key,$small_footprint?16:160); | |
| 1741 &xor ($s0,&DWP(0,$key)); | |
| 1742 &xor ($s1,&DWP(4,$key)); | |
| 1743 &xor ($s2,&DWP(8,$key)); | |
| 1744 &xor ($s3,&DWP(12,$key)); | |
| 1745 | |
| 1746 &ret (); | |
| 1747 | |
| 1748 &set_label("AES_Td",64); # Yes! I keep it in the code segment! | |
| 1749 &_data_word(0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a); | |
| 1750 &_data_word(0xcb6bab3b, 0xf1459d1f, 0xab58faac, 0x9303e34b); | |
| 1751 &_data_word(0x55fa3020, 0xf66d76ad, 0x9176cc88, 0x254c02f5); | |
| 1752 &_data_word(0xfcd7e54f, 0xd7cb2ac5, 0x80443526, 0x8fa362b5); | |
| 1753 &_data_word(0x495ab1de, 0x671bba25, 0x980eea45, 0xe1c0fe5d); | |
| 1754 &_data_word(0x02752fc3, 0x12f04c81, 0xa397468d, 0xc6f9d36b); | |
| 1755 &_data_word(0xe75f8f03, 0x959c9215, 0xeb7a6dbf, 0xda595295); | |
| 1756 &_data_word(0x2d83bed4, 0xd3217458, 0x2969e049, 0x44c8c98e); | |
| 1757 &_data_word(0x6a89c275, 0x78798ef4, 0x6b3e5899, 0xdd71b927); | |
| 1758 &_data_word(0xb64fe1be, 0x17ad88f0, 0x66ac20c9, 0xb43ace7d); | |
| 1759 &_data_word(0x184adf63, 0x82311ae5, 0x60335197, 0x457f5362); | |
| 1760 &_data_word(0xe07764b1, 0x84ae6bbb, 0x1ca081fe, 0x942b08f9); | |
| 1761 &_data_word(0x58684870, 0x19fd458f, 0x876cde94, 0xb7f87b52); | |
| 1762 &_data_word(0x23d373ab, 0xe2024b72, 0x578f1fe3, 0x2aab5566); | |
| 1763 &_data_word(0x0728ebb2, 0x03c2b52f, 0x9a7bc586, 0xa50837d3); | |
| 1764 &_data_word(0xf2872830, 0xb2a5bf23, 0xba6a0302, 0x5c8216ed); | |
| 1765 &_data_word(0x2b1ccf8a, 0x92b479a7, 0xf0f207f3, 0xa1e2694e); | |
| 1766 &_data_word(0xcdf4da65, 0xd5be0506, 0x1f6234d1, 0x8afea6c4); | |
| 1767 &_data_word(0x9d532e34, 0xa055f3a2, 0x32e18a05, 0x75ebf6a4); | |
| 1768 &_data_word(0x39ec830b, 0xaaef6040, 0x069f715e, 0x51106ebd); | |
| 1769 &_data_word(0xf98a213e, 0x3d06dd96, 0xae053edd, 0x46bde64d); | |
| 1770 &_data_word(0xb58d5491, 0x055dc471, 0x6fd40604, 0xff155060); | |
| 1771 &_data_word(0x24fb9819, 0x97e9bdd6, 0xcc434089, 0x779ed967); | |
| 1772 &_data_word(0xbd42e8b0, 0x888b8907, 0x385b19e7, 0xdbeec879); | |
| 1773 &_data_word(0x470a7ca1, 0xe90f427c, 0xc91e84f8, 0x00000000); | |
| 1774 &_data_word(0x83868009, 0x48ed2b32, 0xac70111e, 0x4e725a6c); | |
| 1775 &_data_word(0xfbff0efd, 0x5638850f, 0x1ed5ae3d, 0x27392d36); | |
| 1776 &_data_word(0x64d90f0a, 0x21a65c68, 0xd1545b9b, 0x3a2e3624); | |
| 1777 &_data_word(0xb1670a0c, 0x0fe75793, 0xd296eeb4, 0x9e919b1b); | |
| 1778 &_data_word(0x4fc5c080, 0xa220dc61, 0x694b775a, 0x161a121c); | |
| 1779 &_data_word(0x0aba93e2, 0xe52aa0c0, 0x43e0223c, 0x1d171b12); | |
| 1780 &_data_word(0x0b0d090e, 0xadc78bf2, 0xb9a8b62d, 0xc8a91e14); | |
| 1781 &_data_word(0x8519f157, 0x4c0775af, 0xbbdd99ee, 0xfd607fa3); | |
| 1782 &_data_word(0x9f2601f7, 0xbcf5725c, 0xc53b6644, 0x347efb5b); | |
| 1783 &_data_word(0x7629438b, 0xdcc623cb, 0x68fcedb6, 0x63f1e4b8); | |
| 1784 &_data_word(0xcadc31d7, 0x10856342, 0x40229713, 0x2011c684); | |
| 1785 &_data_word(0x7d244a85, 0xf83dbbd2, 0x1132f9ae, 0x6da129c7); | |
| 1786 &_data_word(0x4b2f9e1d, 0xf330b2dc, 0xec52860d, 0xd0e3c177); | |
| 1787 &_data_word(0x6c16b32b, 0x99b970a9, 0xfa489411, 0x2264e947); | |
| 1788 &_data_word(0xc48cfca8, 0x1a3ff0a0, 0xd82c7d56, 0xef903322); | |
| 1789 &_data_word(0xc74e4987, 0xc1d138d9, 0xfea2ca8c, 0x360bd498); | |
| 1790 &_data_word(0xcf81f5a6, 0x28de7aa5, 0x268eb7da, 0xa4bfad3f); | |
| 1791 &_data_word(0xe49d3a2c, 0x0d927850, 0x9bcc5f6a, 0x62467e54); | |
| 1792 &_data_word(0xc2138df6, 0xe8b8d890, 0x5ef7392e, 0xf5afc382); | |
| 1793 &_data_word(0xbe805d9f, 0x7c93d069, 0xa92dd56f, 0xb31225cf); | |
| 1794 &_data_word(0x3b99acc8, 0xa77d1810, 0x6e639ce8, 0x7bbb3bdb); | |
| 1795 &_data_word(0x097826cd, 0xf418596e, 0x01b79aec, 0xa89a4f83); | |
| 1796 &_data_word(0x656e95e6, 0x7ee6ffaa, 0x08cfbc21, 0xe6e815ef); | |
| 1797 &_data_word(0xd99be7ba, 0xce366f4a, 0xd4099fea, 0xd67cb029); | |
| 1798 &_data_word(0xafb2a431, 0x31233f2a, 0x3094a5c6, 0xc066a235); | |
| 1799 &_data_word(0x37bc4e74, 0xa6ca82fc, 0xb0d090e0, 0x15d8a733); | |
| 1800 &_data_word(0x4a9804f1, 0xf7daec41, 0x0e50cd7f, 0x2ff69117); | |
| 1801 &_data_word(0x8dd64d76, 0x4db0ef43, 0x544daacc, 0xdf0496e4); | |
| 1802 &_data_word(0xe3b5d19e, 0x1b886a4c, 0xb81f2cc1, 0x7f516546); | |
| 1803 &_data_word(0x04ea5e9d, 0x5d358c01, 0x737487fa, 0x2e410bfb); | |
| 1804 &_data_word(0x5a1d67b3, 0x52d2db92, 0x335610e9, 0x1347d66d); | |
| 1805 &_data_word(0x8c61d79a, 0x7a0ca137, 0x8e14f859, 0x893c13eb); | |
| 1806 &_data_word(0xee27a9ce, 0x35c961b7, 0xede51ce1, 0x3cb1477a); | |
| 1807 &_data_word(0x59dfd29c, 0x3f73f255, 0x79ce1418, 0xbf37c773); | |
| 1808 &_data_word(0xeacdf753, 0x5baafd5f, 0x146f3ddf, 0x86db4478); | |
| 1809 &_data_word(0x81f3afca, 0x3ec468b9, 0x2c342438, 0x5f40a3c2); | |
| 1810 &_data_word(0x72c31d16, 0x0c25e2bc, 0x8b493c28, 0x41950dff); | |
| 1811 &_data_word(0x7101a839, 0xdeb30c08, 0x9ce4b4d8, 0x90c15664); | |
| 1812 &_data_word(0x6184cb7b, 0x70b632d5, 0x745c6c48, 0x4257b8d0); | |
| 1813 | |
| 1814 #Td4: # four copies of Td4 to choose from to avoid L1 aliasing | |
| 1815 &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); | |
| 1816 &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); | |
| 1817 &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); | |
| 1818 &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); | |
| 1819 &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); | |
| 1820 &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); | |
| 1821 &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); | |
| 1822 &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); | |
| 1823 &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); | |
| 1824 &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); | |
| 1825 &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); | |
| 1826 &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); | |
| 1827 &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); | |
| 1828 &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); | |
| 1829 &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); | |
| 1830 &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); | |
| 1831 &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); | |
| 1832 &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); | |
| 1833 &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); | |
| 1834 &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); | |
| 1835 &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); | |
| 1836 &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); | |
| 1837 &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); | |
| 1838 &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); | |
| 1839 &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); | |
| 1840 &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); | |
| 1841 &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); | |
| 1842 &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); | |
| 1843 &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); | |
| 1844 &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); | |
| 1845 &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); | |
| 1846 &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); | |
| 1847 | |
| 1848 &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); | |
| 1849 &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); | |
| 1850 &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); | |
| 1851 &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); | |
| 1852 &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); | |
| 1853 &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); | |
| 1854 &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); | |
| 1855 &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); | |
| 1856 &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); | |
| 1857 &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); | |
| 1858 &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); | |
| 1859 &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); | |
| 1860 &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); | |
| 1861 &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); | |
| 1862 &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); | |
| 1863 &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); | |
| 1864 &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); | |
| 1865 &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); | |
| 1866 &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); | |
| 1867 &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); | |
| 1868 &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); | |
| 1869 &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); | |
| 1870 &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); | |
| 1871 &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); | |
| 1872 &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); | |
| 1873 &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); | |
| 1874 &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); | |
| 1875 &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); | |
| 1876 &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); | |
| 1877 &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); | |
| 1878 &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); | |
| 1879 &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); | |
| 1880 | |
| 1881 &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); | |
| 1882 &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); | |
| 1883 &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); | |
| 1884 &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); | |
| 1885 &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); | |
| 1886 &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); | |
| 1887 &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); | |
| 1888 &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); | |
| 1889 &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); | |
| 1890 &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); | |
| 1891 &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); | |
| 1892 &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); | |
| 1893 &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); | |
| 1894 &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); | |
| 1895 &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); | |
| 1896 &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); | |
| 1897 &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); | |
| 1898 &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); | |
| 1899 &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); | |
| 1900 &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); | |
| 1901 &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); | |
| 1902 &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); | |
| 1903 &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); | |
| 1904 &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); | |
| 1905 &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); | |
| 1906 &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); | |
| 1907 &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); | |
| 1908 &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); | |
| 1909 &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); | |
| 1910 &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); | |
| 1911 &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); | |
| 1912 &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); | |
| 1913 | |
| 1914 &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); | |
| 1915 &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); | |
| 1916 &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); | |
| 1917 &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); | |
| 1918 &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); | |
| 1919 &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); | |
| 1920 &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); | |
| 1921 &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); | |
| 1922 &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); | |
| 1923 &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); | |
| 1924 &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); | |
| 1925 &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); | |
| 1926 &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); | |
| 1927 &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); | |
| 1928 &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); | |
| 1929 &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); | |
| 1930 &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); | |
| 1931 &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); | |
| 1932 &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); | |
| 1933 &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); | |
| 1934 &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); | |
| 1935 &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); | |
| 1936 &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); | |
| 1937 &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); | |
| 1938 &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); | |
| 1939 &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); | |
| 1940 &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); | |
| 1941 &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); | |
| 1942 &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); | |
| 1943 &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); | |
| 1944 &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); | |
| 1945 &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); | |
| 1946 &function_end_B("_x86_AES_decrypt"); | |
| 1947 | |
| 1948 # void AES_decrypt (const void *inp,void *out,const AES_KEY *key); | |
| 1949 &function_begin("AES_decrypt"); | |
| 1950 &mov ($acc,&wparam(0)); # load inp | |
| 1951 &mov ($key,&wparam(2)); # load key | |
| 1952 | |
| 1953 &mov ($s0,"esp"); | |
| 1954 &sub ("esp",36); | |
| 1955 &and ("esp",-64); # align to cache-line | |
| 1956 | |
| 1957 # place stack frame just "above" the key schedule | |
| 1958 &lea ($s1,&DWP(-64-63,$key)); | |
| 1959 &sub ($s1,"esp"); | |
| 1960 &neg ($s1); | |
| 1961 &and ($s1,0x3C0); # modulo 1024, but aligned to cache-line | |
| 1962 &sub ("esp",$s1); | |
| 1963 &add ("esp",4); # 4 is reserved for caller's return address | |
| 1964 &mov ($_esp,$s0); # save stack pointer | |
| 1965 | |
| 1966 &call (&label("pic_point")); # make it PIC! | |
| 1967 &set_label("pic_point"); | |
| 1968 &blindpop($tbl); | |
| 1969 &picmeup($s0,"OPENSSL_ia32cap_P",$tbl,&label("pic_point")) if(!$x86only)
; | |
| 1970 &lea ($tbl,&DWP(&label("AES_Td")."-".&label("pic_point"),$tbl)); | |
| 1971 | |
| 1972 # pick Td4 copy which can't "overlap" with stack frame or key schedule | |
| 1973 &lea ($s1,&DWP(768-4,"esp")); | |
| 1974 &sub ($s1,$tbl); | |
| 1975 &and ($s1,0x300); | |
| 1976 &lea ($tbl,&DWP(2048+128,$tbl,$s1)); | |
| 1977 | |
| 1978 if (!$x86only) { | |
| 1979 &bt (&DWP(0,$s0),25); # check for SSE bit | |
| 1980 &jnc (&label("x86")); | |
| 1981 | |
| 1982 &movq ("mm0",&QWP(0,$acc)); | |
| 1983 &movq ("mm4",&QWP(8,$acc)); | |
| 1984 &call ("_sse_AES_decrypt_compact"); | |
| 1985 &mov ("esp",$_esp); # restore stack pointer | |
| 1986 &mov ($acc,&wparam(1)); # load out | |
| 1987 &movq (&QWP(0,$acc),"mm0"); # write output data | |
| 1988 &movq (&QWP(8,$acc),"mm4"); | |
| 1989 &emms (); | |
| 1990 &function_end_A(); | |
| 1991 } | |
| 1992 &set_label("x86",16); | |
| 1993 &mov ($_tbl,$tbl); | |
| 1994 &mov ($s0,&DWP(0,$acc)); # load input data | |
| 1995 &mov ($s1,&DWP(4,$acc)); | |
| 1996 &mov ($s2,&DWP(8,$acc)); | |
| 1997 &mov ($s3,&DWP(12,$acc)); | |
| 1998 &call ("_x86_AES_decrypt_compact"); | |
| 1999 &mov ("esp",$_esp); # restore stack pointer | |
| 2000 &mov ($acc,&wparam(1)); # load out | |
| 2001 &mov (&DWP(0,$acc),$s0); # write output data | |
| 2002 &mov (&DWP(4,$acc),$s1); | |
| 2003 &mov (&DWP(8,$acc),$s2); | |
| 2004 &mov (&DWP(12,$acc),$s3); | |
| 2005 &function_end("AES_decrypt"); | |
| 2006 | |
| 2007 # void AES_cbc_encrypt (const void char *inp, unsigned char *out, | |
| 2008 # size_t length, const AES_KEY *key, | |
| 2009 # unsigned char *ivp,const int enc); | |
| 2010 { | |
| 2011 # stack frame layout | |
| 2012 # -4(%esp) # return address 0(%esp) | |
| 2013 # 0(%esp) # s0 backing store 4(%esp) | |
| 2014 # 4(%esp) # s1 backing store 8(%esp) | |
| 2015 # 8(%esp) # s2 backing store 12(%esp) | |
| 2016 # 12(%esp) # s3 backing store 16(%esp) | |
| 2017 # 16(%esp) # key backup 20(%esp) | |
| 2018 # 20(%esp) # end of key schedule 24(%esp) | |
| 2019 # 24(%esp) # %ebp backup 28(%esp) | |
| 2020 # 28(%esp) # %esp backup | |
| 2021 my $_inp=&DWP(32,"esp"); # copy of wparam(0) | |
| 2022 my $_out=&DWP(36,"esp"); # copy of wparam(1) | |
| 2023 my $_len=&DWP(40,"esp"); # copy of wparam(2) | |
| 2024 my $_key=&DWP(44,"esp"); # copy of wparam(3) | |
| 2025 my $_ivp=&DWP(48,"esp"); # copy of wparam(4) | |
| 2026 my $_tmp=&DWP(52,"esp"); # volatile variable | |
| 2027 # | |
| 2028 my $ivec=&DWP(60,"esp"); # ivec[16] | |
| 2029 my $aes_key=&DWP(76,"esp"); # copy of aes_key | |
| 2030 my $mark=&DWP(76+240,"esp"); # copy of aes_key->rounds | |
| 2031 | |
| 2032 &function_begin("AES_cbc_encrypt"); | |
| 2033 &mov ($s2 eq "ecx"? $s2 : "",&wparam(2)); # load len | |
| 2034 &cmp ($s2,0); | |
| 2035 &je (&label("drop_out")); | |
| 2036 | |
| 2037 &call (&label("pic_point")); # make it PIC! | |
| 2038 &set_label("pic_point"); | |
| 2039 &blindpop($tbl); | |
| 2040 &picmeup($s0,"OPENSSL_ia32cap_P",$tbl,&label("pic_point")) if(!$x86only)
; | |
| 2041 | |
| 2042 &cmp (&wparam(5),0); | |
| 2043 &lea ($tbl,&DWP(&label("AES_Te")."-".&label("pic_point"),$tbl)); | |
| 2044 &jne (&label("picked_te")); | |
| 2045 &lea ($tbl,&DWP(&label("AES_Td")."-".&label("AES_Te"),$tbl)); | |
| 2046 &set_label("picked_te"); | |
| 2047 | |
| 2048 # one can argue if this is required | |
| 2049 &pushf (); | |
| 2050 &cld (); | |
| 2051 | |
| 2052 &cmp ($s2,$speed_limit); | |
| 2053 &jb (&label("slow_way")); | |
| 2054 &test ($s2,15); | |
| 2055 &jnz (&label("slow_way")); | |
| 2056 if (!$x86only) { | |
| 2057 &bt (&DWP(0,$s0),28); # check for hyper-threading bit | |
| 2058 &jc (&label("slow_way")); | |
| 2059 } | |
| 2060 # pre-allocate aligned stack frame... | |
| 2061 &lea ($acc,&DWP(-80-244,"esp")); | |
| 2062 &and ($acc,-64); | |
| 2063 | |
| 2064 # ... and make sure it doesn't alias with $tbl modulo 4096 | |
| 2065 &mov ($s0,$tbl); | |
| 2066 &lea ($s1,&DWP(2048+256,$tbl)); | |
| 2067 &mov ($s3,$acc); | |
| 2068 &and ($s0,0xfff); # s = %ebp&0xfff | |
| 2069 &and ($s1,0xfff); # e = (%ebp+2048+256)&0xfff | |
| 2070 &and ($s3,0xfff); # p = %esp&0xfff | |
| 2071 | |
| 2072 &cmp ($s3,$s1); # if (p>=e) %esp =- (p-e); | |
| 2073 &jb (&label("tbl_break_out")); | |
| 2074 &sub ($s3,$s1); | |
| 2075 &sub ($acc,$s3); | |
| 2076 &jmp (&label("tbl_ok")); | |
| 2077 &set_label("tbl_break_out",4); # else %esp -= (p-s)&0xfff + framesz; | |
| 2078 &sub ($s3,$s0); | |
| 2079 &and ($s3,0xfff); | |
| 2080 &add ($s3,384); | |
| 2081 &sub ($acc,$s3); | |
| 2082 &set_label("tbl_ok",4); | |
| 2083 | |
| 2084 &lea ($s3,&wparam(0)); # obtain pointer to parameter block | |
| 2085 &exch ("esp",$acc); # allocate stack frame | |
| 2086 &add ("esp",4); # reserve for return address! | |
| 2087 &mov ($_tbl,$tbl); # save %ebp | |
| 2088 &mov ($_esp,$acc); # save %esp | |
| 2089 | |
| 2090 &mov ($s0,&DWP(0,$s3)); # load inp | |
| 2091 &mov ($s1,&DWP(4,$s3)); # load out | |
| 2092 #&mov ($s2,&DWP(8,$s3)); # load len | |
| 2093 &mov ($key,&DWP(12,$s3)); # load key | |
| 2094 &mov ($acc,&DWP(16,$s3)); # load ivp | |
| 2095 &mov ($s3,&DWP(20,$s3)); # load enc flag | |
| 2096 | |
| 2097 &mov ($_inp,$s0); # save copy of inp | |
| 2098 &mov ($_out,$s1); # save copy of out | |
| 2099 &mov ($_len,$s2); # save copy of len | |
| 2100 &mov ($_key,$key); # save copy of key | |
| 2101 &mov ($_ivp,$acc); # save copy of ivp | |
| 2102 | |
| 2103 &mov ($mark,0); # copy of aes_key->rounds = 0; | |
| 2104 # do we copy key schedule to stack? | |
| 2105 &mov ($s1 eq "ebx" ? $s1 : "",$key); | |
| 2106 &mov ($s2 eq "ecx" ? $s2 : "",244/4); | |
| 2107 &sub ($s1,$tbl); | |
| 2108 &mov ("esi",$key); | |
| 2109 &and ($s1,0xfff); | |
| 2110 &lea ("edi",$aes_key); | |
| 2111 &cmp ($s1,2048+256); | |
| 2112 &jb (&label("do_copy")); | |
| 2113 &cmp ($s1,4096-244); | |
| 2114 &jb (&label("skip_copy")); | |
| 2115 &set_label("do_copy",4); | |
| 2116 &mov ($_key,"edi"); | |
| 2117 &data_word(0xA5F3F689); # rep movsd | |
| 2118 &set_label("skip_copy"); | |
| 2119 | |
| 2120 &mov ($key,16); | |
| 2121 &set_label("prefetch_tbl",4); | |
| 2122 &mov ($s0,&DWP(0,$tbl)); | |
| 2123 &mov ($s1,&DWP(32,$tbl)); | |
| 2124 &mov ($s2,&DWP(64,$tbl)); | |
| 2125 &mov ($acc,&DWP(96,$tbl)); | |
| 2126 &lea ($tbl,&DWP(128,$tbl)); | |
| 2127 &sub ($key,1); | |
| 2128 &jnz (&label("prefetch_tbl")); | |
| 2129 &sub ($tbl,2048); | |
| 2130 | |
| 2131 &mov ($acc,$_inp); | |
| 2132 &mov ($key,$_ivp); | |
| 2133 | |
| 2134 &cmp ($s3,0); | |
| 2135 &je (&label("fast_decrypt")); | |
| 2136 | |
| 2137 #----------------------------- ENCRYPT -----------------------------# | |
| 2138 &mov ($s0,&DWP(0,$key)); # load iv | |
| 2139 &mov ($s1,&DWP(4,$key)); | |
| 2140 | |
| 2141 &set_label("fast_enc_loop",16); | |
| 2142 &mov ($s2,&DWP(8,$key)); | |
| 2143 &mov ($s3,&DWP(12,$key)); | |
| 2144 | |
| 2145 &xor ($s0,&DWP(0,$acc)); # xor input data | |
| 2146 &xor ($s1,&DWP(4,$acc)); | |
| 2147 &xor ($s2,&DWP(8,$acc)); | |
| 2148 &xor ($s3,&DWP(12,$acc)); | |
| 2149 | |
| 2150 &mov ($key,$_key); # load key | |
| 2151 &call ("_x86_AES_encrypt"); | |
| 2152 | |
| 2153 &mov ($acc,$_inp); # load inp | |
| 2154 &mov ($key,$_out); # load out | |
| 2155 | |
| 2156 &mov (&DWP(0,$key),$s0); # save output data | |
| 2157 &mov (&DWP(4,$key),$s1); | |
| 2158 &mov (&DWP(8,$key),$s2); | |
| 2159 &mov (&DWP(12,$key),$s3); | |
| 2160 | |
| 2161 &lea ($acc,&DWP(16,$acc)); # advance inp | |
| 2162 &mov ($s2,$_len); # load len | |
| 2163 &mov ($_inp,$acc); # save inp | |
| 2164 &lea ($s3,&DWP(16,$key)); # advance out | |
| 2165 &mov ($_out,$s3); # save out | |
| 2166 &sub ($s2,16); # decrease len | |
| 2167 &mov ($_len,$s2); # save len | |
| 2168 &jnz (&label("fast_enc_loop")); | |
| 2169 &mov ($acc,$_ivp); # load ivp | |
| 2170 &mov ($s2,&DWP(8,$key)); # restore last 2 dwords | |
| 2171 &mov ($s3,&DWP(12,$key)); | |
| 2172 &mov (&DWP(0,$acc),$s0); # save ivec | |
| 2173 &mov (&DWP(4,$acc),$s1); | |
| 2174 &mov (&DWP(8,$acc),$s2); | |
| 2175 &mov (&DWP(12,$acc),$s3); | |
| 2176 | |
| 2177 &cmp ($mark,0); # was the key schedule copied? | |
| 2178 &mov ("edi",$_key); | |
| 2179 &je (&label("skip_ezero")); | |
| 2180 # zero copy of key schedule | |
| 2181 &mov ("ecx",240/4); | |
| 2182 &xor ("eax","eax"); | |
| 2183 &align (4); | |
| 2184 &data_word(0xABF3F689); # rep stosd | |
| 2185 &set_label("skip_ezero") | |
| 2186 &mov ("esp",$_esp); | |
| 2187 &popf (); | |
| 2188 &set_label("drop_out"); | |
| 2189 &function_end_A(); | |
| 2190 &pushf (); # kludge, never executed | |
| 2191 | |
| 2192 #----------------------------- DECRYPT -----------------------------# | |
| 2193 &set_label("fast_decrypt",16); | |
| 2194 | |
| 2195 &cmp ($acc,$_out); | |
| 2196 &je (&label("fast_dec_in_place")); # in-place processing... | |
| 2197 | |
| 2198 &mov ($_tmp,$key); | |
| 2199 | |
| 2200 &align (4); | |
| 2201 &set_label("fast_dec_loop",16); | |
| 2202 &mov ($s0,&DWP(0,$acc)); # read input | |
| 2203 &mov ($s1,&DWP(4,$acc)); | |
| 2204 &mov ($s2,&DWP(8,$acc)); | |
| 2205 &mov ($s3,&DWP(12,$acc)); | |
| 2206 | |
| 2207 &mov ($key,$_key); # load key | |
| 2208 &call ("_x86_AES_decrypt"); | |
| 2209 | |
| 2210 &mov ($key,$_tmp); # load ivp | |
| 2211 &mov ($acc,$_len); # load len | |
| 2212 &xor ($s0,&DWP(0,$key)); # xor iv | |
| 2213 &xor ($s1,&DWP(4,$key)); | |
| 2214 &xor ($s2,&DWP(8,$key)); | |
| 2215 &xor ($s3,&DWP(12,$key)); | |
| 2216 | |
| 2217 &mov ($key,$_out); # load out | |
| 2218 &mov ($acc,$_inp); # load inp | |
| 2219 | |
| 2220 &mov (&DWP(0,$key),$s0); # write output | |
| 2221 &mov (&DWP(4,$key),$s1); | |
| 2222 &mov (&DWP(8,$key),$s2); | |
| 2223 &mov (&DWP(12,$key),$s3); | |
| 2224 | |
| 2225 &mov ($s2,$_len); # load len | |
| 2226 &mov ($_tmp,$acc); # save ivp | |
| 2227 &lea ($acc,&DWP(16,$acc)); # advance inp | |
| 2228 &mov ($_inp,$acc); # save inp | |
| 2229 &lea ($key,&DWP(16,$key)); # advance out | |
| 2230 &mov ($_out,$key); # save out | |
| 2231 &sub ($s2,16); # decrease len | |
| 2232 &mov ($_len,$s2); # save len | |
| 2233 &jnz (&label("fast_dec_loop")); | |
| 2234 &mov ($key,$_tmp); # load temp ivp | |
| 2235 &mov ($acc,$_ivp); # load user ivp | |
| 2236 &mov ($s0,&DWP(0,$key)); # load iv | |
| 2237 &mov ($s1,&DWP(4,$key)); | |
| 2238 &mov ($s2,&DWP(8,$key)); | |
| 2239 &mov ($s3,&DWP(12,$key)); | |
| 2240 &mov (&DWP(0,$acc),$s0); # copy back to user | |
| 2241 &mov (&DWP(4,$acc),$s1); | |
| 2242 &mov (&DWP(8,$acc),$s2); | |
| 2243 &mov (&DWP(12,$acc),$s3); | |
| 2244 &jmp (&label("fast_dec_out")); | |
| 2245 | |
| 2246 &set_label("fast_dec_in_place",16); | |
| 2247 &set_label("fast_dec_in_place_loop"); | |
| 2248 &mov ($s0,&DWP(0,$acc)); # read input | |
| 2249 &mov ($s1,&DWP(4,$acc)); | |
| 2250 &mov ($s2,&DWP(8,$acc)); | |
| 2251 &mov ($s3,&DWP(12,$acc)); | |
| 2252 | |
| 2253 &lea ($key,$ivec); | |
| 2254 &mov (&DWP(0,$key),$s0); # copy to temp | |
| 2255 &mov (&DWP(4,$key),$s1); | |
| 2256 &mov (&DWP(8,$key),$s2); | |
| 2257 &mov (&DWP(12,$key),$s3); | |
| 2258 | |
| 2259 &mov ($key,$_key); # load key | |
| 2260 &call ("_x86_AES_decrypt"); | |
| 2261 | |
| 2262 &mov ($key,$_ivp); # load ivp | |
| 2263 &mov ($acc,$_out); # load out | |
| 2264 &xor ($s0,&DWP(0,$key)); # xor iv | |
| 2265 &xor ($s1,&DWP(4,$key)); | |
| 2266 &xor ($s2,&DWP(8,$key)); | |
| 2267 &xor ($s3,&DWP(12,$key)); | |
| 2268 | |
| 2269 &mov (&DWP(0,$acc),$s0); # write output | |
| 2270 &mov (&DWP(4,$acc),$s1); | |
| 2271 &mov (&DWP(8,$acc),$s2); | |
| 2272 &mov (&DWP(12,$acc),$s3); | |
| 2273 | |
| 2274 &lea ($acc,&DWP(16,$acc)); # advance out | |
| 2275 &mov ($_out,$acc); # save out | |
| 2276 | |
| 2277 &lea ($acc,$ivec); | |
| 2278 &mov ($s0,&DWP(0,$acc)); # read temp | |
| 2279 &mov ($s1,&DWP(4,$acc)); | |
| 2280 &mov ($s2,&DWP(8,$acc)); | |
| 2281 &mov ($s3,&DWP(12,$acc)); | |
| 2282 | |
| 2283 &mov (&DWP(0,$key),$s0); # copy iv | |
| 2284 &mov (&DWP(4,$key),$s1); | |
| 2285 &mov (&DWP(8,$key),$s2); | |
| 2286 &mov (&DWP(12,$key),$s3); | |
| 2287 | |
| 2288 &mov ($acc,$_inp); # load inp | |
| 2289 &mov ($s2,$_len); # load len | |
| 2290 &lea ($acc,&DWP(16,$acc)); # advance inp | |
| 2291 &mov ($_inp,$acc); # save inp | |
| 2292 &sub ($s2,16); # decrease len | |
| 2293 &mov ($_len,$s2); # save len | |
| 2294 &jnz (&label("fast_dec_in_place_loop")); | |
| 2295 | |
| 2296 &set_label("fast_dec_out",4); | |
| 2297 &cmp ($mark,0); # was the key schedule copied? | |
| 2298 &mov ("edi",$_key); | |
| 2299 &je (&label("skip_dzero")); | |
| 2300 # zero copy of key schedule | |
| 2301 &mov ("ecx",240/4); | |
| 2302 &xor ("eax","eax"); | |
| 2303 &align (4); | |
| 2304 &data_word(0xABF3F689); # rep stosd | |
| 2305 &set_label("skip_dzero") | |
| 2306 &mov ("esp",$_esp); | |
| 2307 &popf (); | |
| 2308 &function_end_A(); | |
| 2309 &pushf (); # kludge, never executed | |
| 2310 | |
| 2311 #--------------------------- SLOW ROUTINE ---------------------------# | |
| 2312 &set_label("slow_way",16); | |
| 2313 | |
| 2314 &mov ($s0,&DWP(0,$s0)) if (!$x86only);# load OPENSSL_ia32cap | |
| 2315 &mov ($key,&wparam(3)); # load key | |
| 2316 | |
| 2317 # pre-allocate aligned stack frame... | |
| 2318 &lea ($acc,&DWP(-80,"esp")); | |
| 2319 &and ($acc,-64); | |
| 2320 | |
| 2321 # ... and make sure it doesn't alias with $key modulo 1024 | |
| 2322 &lea ($s1,&DWP(-80-63,$key)); | |
| 2323 &sub ($s1,$acc); | |
| 2324 &neg ($s1); | |
| 2325 &and ($s1,0x3C0); # modulo 1024, but aligned to cache-line | |
| 2326 &sub ($acc,$s1); | |
| 2327 | |
| 2328 # pick S-box copy which can't overlap with stack frame or $key | |
| 2329 &lea ($s1,&DWP(768,$acc)); | |
| 2330 &sub ($s1,$tbl); | |
| 2331 &and ($s1,0x300); | |
| 2332 &lea ($tbl,&DWP(2048+128,$tbl,$s1)); | |
| 2333 | |
| 2334 &lea ($s3,&wparam(0)); # pointer to parameter block | |
| 2335 | |
| 2336 &exch ("esp",$acc); | |
| 2337 &add ("esp",4); # reserve for return address! | |
| 2338 &mov ($_tbl,$tbl); # save %ebp | |
| 2339 &mov ($_esp,$acc); # save %esp | |
| 2340 &mov ($_tmp,$s0); # save OPENSSL_ia32cap | |
| 2341 | |
| 2342 &mov ($s0,&DWP(0,$s3)); # load inp | |
| 2343 &mov ($s1,&DWP(4,$s3)); # load out | |
| 2344 #&mov ($s2,&DWP(8,$s3)); # load len | |
| 2345 #&mov ($key,&DWP(12,$s3)); # load key | |
| 2346 &mov ($acc,&DWP(16,$s3)); # load ivp | |
| 2347 &mov ($s3,&DWP(20,$s3)); # load enc flag | |
| 2348 | |
| 2349 &mov ($_inp,$s0); # save copy of inp | |
| 2350 &mov ($_out,$s1); # save copy of out | |
| 2351 &mov ($_len,$s2); # save copy of len | |
| 2352 &mov ($_key,$key); # save copy of key | |
| 2353 &mov ($_ivp,$acc); # save copy of ivp | |
| 2354 | |
| 2355 &mov ($key,$acc); | |
| 2356 &mov ($acc,$s0); | |
| 2357 | |
| 2358 &cmp ($s3,0); | |
| 2359 &je (&label("slow_decrypt")); | |
| 2360 | |
| 2361 #--------------------------- SLOW ENCRYPT ---------------------------# | |
| 2362 &cmp ($s2,16); | |
| 2363 &mov ($s3,$s1); | |
| 2364 &jb (&label("slow_enc_tail")); | |
| 2365 | |
| 2366 if (!$x86only) { | |
| 2367 &bt ($_tmp,25); # check for SSE bit | |
| 2368 &jnc (&label("slow_enc_x86")); | |
| 2369 | |
| 2370 &movq ("mm0",&QWP(0,$key)); # load iv | |
| 2371 &movq ("mm4",&QWP(8,$key)); | |
| 2372 | |
| 2373 &set_label("slow_enc_loop_sse",16); | |
| 2374 &pxor ("mm0",&QWP(0,$acc)); # xor input data | |
| 2375 &pxor ("mm4",&QWP(8,$acc)); | |
| 2376 | |
| 2377 &mov ($key,$_key); | |
| 2378 &call ("_sse_AES_encrypt_compact"); | |
| 2379 | |
| 2380 &mov ($acc,$_inp); # load inp | |
| 2381 &mov ($key,$_out); # load out | |
| 2382 &mov ($s2,$_len); # load len | |
| 2383 | |
| 2384 &movq (&QWP(0,$key),"mm0"); # save output data | |
| 2385 &movq (&QWP(8,$key),"mm4"); | |
| 2386 | |
| 2387 &lea ($acc,&DWP(16,$acc)); # advance inp | |
| 2388 &mov ($_inp,$acc); # save inp | |
| 2389 &lea ($s3,&DWP(16,$key)); # advance out | |
| 2390 &mov ($_out,$s3); # save out | |
| 2391 &sub ($s2,16); # decrease len | |
| 2392 &cmp ($s2,16); | |
| 2393 &mov ($_len,$s2); # save len | |
| 2394 &jae (&label("slow_enc_loop_sse")); | |
| 2395 &test ($s2,15); | |
| 2396 &jnz (&label("slow_enc_tail")); | |
| 2397 &mov ($acc,$_ivp); # load ivp | |
| 2398 &movq (&QWP(0,$acc),"mm0"); # save ivec | |
| 2399 &movq (&QWP(8,$acc),"mm4"); | |
| 2400 &emms (); | |
| 2401 &mov ("esp",$_esp); | |
| 2402 &popf (); | |
| 2403 &function_end_A(); | |
| 2404 &pushf (); # kludge, never executed | |
| 2405 } | |
| 2406 &set_label("slow_enc_x86",16); | |
| 2407 &mov ($s0,&DWP(0,$key)); # load iv | |
| 2408 &mov ($s1,&DWP(4,$key)); | |
| 2409 | |
| 2410 &set_label("slow_enc_loop_x86",4); | |
| 2411 &mov ($s2,&DWP(8,$key)); | |
| 2412 &mov ($s3,&DWP(12,$key)); | |
| 2413 | |
| 2414 &xor ($s0,&DWP(0,$acc)); # xor input data | |
| 2415 &xor ($s1,&DWP(4,$acc)); | |
| 2416 &xor ($s2,&DWP(8,$acc)); | |
| 2417 &xor ($s3,&DWP(12,$acc)); | |
| 2418 | |
| 2419 &mov ($key,$_key); # load key | |
| 2420 &call ("_x86_AES_encrypt_compact"); | |
| 2421 | |
| 2422 &mov ($acc,$_inp); # load inp | |
| 2423 &mov ($key,$_out); # load out | |
| 2424 | |
| 2425 &mov (&DWP(0,$key),$s0); # save output data | |
| 2426 &mov (&DWP(4,$key),$s1); | |
| 2427 &mov (&DWP(8,$key),$s2); | |
| 2428 &mov (&DWP(12,$key),$s3); | |
| 2429 | |
| 2430 &mov ($s2,$_len); # load len | |
| 2431 &lea ($acc,&DWP(16,$acc)); # advance inp | |
| 2432 &mov ($_inp,$acc); # save inp | |
| 2433 &lea ($s3,&DWP(16,$key)); # advance out | |
| 2434 &mov ($_out,$s3); # save out | |
| 2435 &sub ($s2,16); # decrease len | |
| 2436 &cmp ($s2,16); | |
| 2437 &mov ($_len,$s2); # save len | |
| 2438 &jae (&label("slow_enc_loop_x86")); | |
| 2439 &test ($s2,15); | |
| 2440 &jnz (&label("slow_enc_tail")); | |
| 2441 &mov ($acc,$_ivp); # load ivp | |
| 2442 &mov ($s2,&DWP(8,$key)); # restore last dwords | |
| 2443 &mov ($s3,&DWP(12,$key)); | |
| 2444 &mov (&DWP(0,$acc),$s0); # save ivec | |
| 2445 &mov (&DWP(4,$acc),$s1); | |
| 2446 &mov (&DWP(8,$acc),$s2); | |
| 2447 &mov (&DWP(12,$acc),$s3); | |
| 2448 | |
| 2449 &mov ("esp",$_esp); | |
| 2450 &popf (); | |
| 2451 &function_end_A(); | |
| 2452 &pushf (); # kludge, never executed | |
| 2453 | |
| 2454 &set_label("slow_enc_tail",16); | |
| 2455 &emms () if (!$x86only); | |
| 2456 &mov ($key eq "edi"? $key:"",$s3); # load out to edi | |
| 2457 &mov ($s1,16); | |
| 2458 &sub ($s1,$s2); | |
| 2459 &cmp ($key,$acc eq "esi"? $acc:""); # compare with inp | |
| 2460 &je (&label("enc_in_place")); | |
| 2461 &align (4); | |
| 2462 &data_word(0xA4F3F689); # rep movsb # copy input | |
| 2463 &jmp (&label("enc_skip_in_place")); | |
| 2464 &set_label("enc_in_place"); | |
| 2465 &lea ($key,&DWP(0,$key,$s2)); | |
| 2466 &set_label("enc_skip_in_place"); | |
| 2467 &mov ($s2,$s1); | |
| 2468 &xor ($s0,$s0); | |
| 2469 &align (4); | |
| 2470 &data_word(0xAAF3F689); # rep stosb # zero tail | |
| 2471 | |
| 2472 &mov ($key,$_ivp); # restore ivp | |
| 2473 &mov ($acc,$s3); # output as input | |
| 2474 &mov ($s0,&DWP(0,$key)); | |
| 2475 &mov ($s1,&DWP(4,$key)); | |
| 2476 &mov ($_len,16); # len=16 | |
| 2477 &jmp (&label("slow_enc_loop_x86")); # one more spin... | |
| 2478 | |
| 2479 #--------------------------- SLOW DECRYPT ---------------------------# | |
| 2480 &set_label("slow_decrypt",16); | |
| 2481 if (!$x86only) { | |
| 2482 &bt ($_tmp,25); # check for SSE bit | |
| 2483 &jnc (&label("slow_dec_loop_x86")); | |
| 2484 | |
| 2485 &set_label("slow_dec_loop_sse",4); | |
| 2486 &movq ("mm0",&QWP(0,$acc)); # read input | |
| 2487 &movq ("mm4",&QWP(8,$acc)); | |
| 2488 | |
| 2489 &mov ($key,$_key); | |
| 2490 &call ("_sse_AES_decrypt_compact"); | |
| 2491 | |
| 2492 &mov ($acc,$_inp); # load inp | |
| 2493 &lea ($s0,$ivec); | |
| 2494 &mov ($s1,$_out); # load out | |
| 2495 &mov ($s2,$_len); # load len | |
| 2496 &mov ($key,$_ivp); # load ivp | |
| 2497 | |
| 2498 &movq ("mm1",&QWP(0,$acc)); # re-read input | |
| 2499 &movq ("mm5",&QWP(8,$acc)); | |
| 2500 | |
| 2501 &pxor ("mm0",&QWP(0,$key)); # xor iv | |
| 2502 &pxor ("mm4",&QWP(8,$key)); | |
| 2503 | |
| 2504 &movq (&QWP(0,$key),"mm1"); # copy input to iv | |
| 2505 &movq (&QWP(8,$key),"mm5"); | |
| 2506 | |
| 2507 &sub ($s2,16); # decrease len | |
| 2508 &jc (&label("slow_dec_partial_sse")); | |
| 2509 | |
| 2510 &movq (&QWP(0,$s1),"mm0"); # write output | |
| 2511 &movq (&QWP(8,$s1),"mm4"); | |
| 2512 | |
| 2513 &lea ($s1,&DWP(16,$s1)); # advance out | |
| 2514 &mov ($_out,$s1); # save out | |
| 2515 &lea ($acc,&DWP(16,$acc)); # advance inp | |
| 2516 &mov ($_inp,$acc); # save inp | |
| 2517 &mov ($_len,$s2); # save len | |
| 2518 &jnz (&label("slow_dec_loop_sse")); | |
| 2519 &emms (); | |
| 2520 &mov ("esp",$_esp); | |
| 2521 &popf (); | |
| 2522 &function_end_A(); | |
| 2523 &pushf (); # kludge, never executed | |
| 2524 | |
| 2525 &set_label("slow_dec_partial_sse",16); | |
| 2526 &movq (&QWP(0,$s0),"mm0"); # save output to temp | |
| 2527 &movq (&QWP(8,$s0),"mm4"); | |
| 2528 &emms (); | |
| 2529 | |
| 2530 &add ($s2 eq "ecx" ? "ecx":"",16); | |
| 2531 &mov ("edi",$s1); # out | |
| 2532 &mov ("esi",$s0); # temp | |
| 2533 &align (4); | |
| 2534 &data_word(0xA4F3F689); # rep movsb # copy partial output | |
| 2535 | |
| 2536 &mov ("esp",$_esp); | |
| 2537 &popf (); | |
| 2538 &function_end_A(); | |
| 2539 &pushf (); # kludge, never executed | |
| 2540 } | |
| 2541 &set_label("slow_dec_loop_x86",16); | |
| 2542 &mov ($s0,&DWP(0,$acc)); # read input | |
| 2543 &mov ($s1,&DWP(4,$acc)); | |
| 2544 &mov ($s2,&DWP(8,$acc)); | |
| 2545 &mov ($s3,&DWP(12,$acc)); | |
| 2546 | |
| 2547 &lea ($key,$ivec); | |
| 2548 &mov (&DWP(0,$key),$s0); # copy to temp | |
| 2549 &mov (&DWP(4,$key),$s1); | |
| 2550 &mov (&DWP(8,$key),$s2); | |
| 2551 &mov (&DWP(12,$key),$s3); | |
| 2552 | |
| 2553 &mov ($key,$_key); # load key | |
| 2554 &call ("_x86_AES_decrypt_compact"); | |
| 2555 | |
| 2556 &mov ($key,$_ivp); # load ivp | |
| 2557 &mov ($acc,$_len); # load len | |
| 2558 &xor ($s0,&DWP(0,$key)); # xor iv | |
| 2559 &xor ($s1,&DWP(4,$key)); | |
| 2560 &xor ($s2,&DWP(8,$key)); | |
| 2561 &xor ($s3,&DWP(12,$key)); | |
| 2562 | |
| 2563 &sub ($acc,16); | |
| 2564 &jc (&label("slow_dec_partial_x86")); | |
| 2565 | |
| 2566 &mov ($_len,$acc); # save len | |
| 2567 &mov ($acc,$_out); # load out | |
| 2568 | |
| 2569 &mov (&DWP(0,$acc),$s0); # write output | |
| 2570 &mov (&DWP(4,$acc),$s1); | |
| 2571 &mov (&DWP(8,$acc),$s2); | |
| 2572 &mov (&DWP(12,$acc),$s3); | |
| 2573 | |
| 2574 &lea ($acc,&DWP(16,$acc)); # advance out | |
| 2575 &mov ($_out,$acc); # save out | |
| 2576 | |
| 2577 &lea ($acc,$ivec); | |
| 2578 &mov ($s0,&DWP(0,$acc)); # read temp | |
| 2579 &mov ($s1,&DWP(4,$acc)); | |
| 2580 &mov ($s2,&DWP(8,$acc)); | |
| 2581 &mov ($s3,&DWP(12,$acc)); | |
| 2582 | |
| 2583 &mov (&DWP(0,$key),$s0); # copy it to iv | |
| 2584 &mov (&DWP(4,$key),$s1); | |
| 2585 &mov (&DWP(8,$key),$s2); | |
| 2586 &mov (&DWP(12,$key),$s3); | |
| 2587 | |
| 2588 &mov ($acc,$_inp); # load inp | |
| 2589 &lea ($acc,&DWP(16,$acc)); # advance inp | |
| 2590 &mov ($_inp,$acc); # save inp | |
| 2591 &jnz (&label("slow_dec_loop_x86")); | |
| 2592 &mov ("esp",$_esp); | |
| 2593 &popf (); | |
| 2594 &function_end_A(); | |
| 2595 &pushf (); # kludge, never executed | |
| 2596 | |
| 2597 &set_label("slow_dec_partial_x86",16); | |
| 2598 &lea ($acc,$ivec); | |
| 2599 &mov (&DWP(0,$acc),$s0); # save output to temp | |
| 2600 &mov (&DWP(4,$acc),$s1); | |
| 2601 &mov (&DWP(8,$acc),$s2); | |
| 2602 &mov (&DWP(12,$acc),$s3); | |
| 2603 | |
| 2604 &mov ($acc,$_inp); | |
| 2605 &mov ($s0,&DWP(0,$acc)); # re-read input | |
| 2606 &mov ($s1,&DWP(4,$acc)); | |
| 2607 &mov ($s2,&DWP(8,$acc)); | |
| 2608 &mov ($s3,&DWP(12,$acc)); | |
| 2609 | |
| 2610 &mov (&DWP(0,$key),$s0); # copy it to iv | |
| 2611 &mov (&DWP(4,$key),$s1); | |
| 2612 &mov (&DWP(8,$key),$s2); | |
| 2613 &mov (&DWP(12,$key),$s3); | |
| 2614 | |
| 2615 &mov ("ecx",$_len); | |
| 2616 &mov ("edi",$_out); | |
| 2617 &lea ("esi",$ivec); | |
| 2618 &align (4); | |
| 2619 &data_word(0xA4F3F689); # rep movsb # copy partial output | |
| 2620 | |
| 2621 &mov ("esp",$_esp); | |
| 2622 &popf (); | |
| 2623 &function_end("AES_cbc_encrypt"); | |
| 2624 } | |
| 2625 | |
| 2626 #------------------------------------------------------------------# | |
| 2627 | |
| 2628 sub enckey() | |
| 2629 { | |
| 2630 &movz ("esi",&LB("edx")); # rk[i]>>0 | |
| 2631 &movz ("ebx",&BP(-128,$tbl,"esi",1)); | |
| 2632 &movz ("esi",&HB("edx")); # rk[i]>>8 | |
| 2633 &shl ("ebx",24); | |
| 2634 &xor ("eax","ebx"); | |
| 2635 | |
| 2636 &movz ("ebx",&BP(-128,$tbl,"esi",1)); | |
| 2637 &shr ("edx",16); | |
| 2638 &movz ("esi",&LB("edx")); # rk[i]>>16 | |
| 2639 &xor ("eax","ebx"); | |
| 2640 | |
| 2641 &movz ("ebx",&BP(-128,$tbl,"esi",1)); | |
| 2642 &movz ("esi",&HB("edx")); # rk[i]>>24 | |
| 2643 &shl ("ebx",8); | |
| 2644 &xor ("eax","ebx"); | |
| 2645 | |
| 2646 &movz ("ebx",&BP(-128,$tbl,"esi",1)); | |
| 2647 &shl ("ebx",16); | |
| 2648 &xor ("eax","ebx"); | |
| 2649 | |
| 2650 &xor ("eax",&DWP(1024-128,$tbl,"ecx",4)); # rcon | |
| 2651 } | |
| 2652 | |
| 2653 &function_begin("_x86_AES_set_encrypt_key"); | |
| 2654 &mov ("esi",&wparam(1)); # user supplied key | |
| 2655 &mov ("edi",&wparam(3)); # private key schedule | |
| 2656 | |
| 2657 &test ("esi",-1); | |
| 2658 &jz (&label("badpointer")); | |
| 2659 &test ("edi",-1); | |
| 2660 &jz (&label("badpointer")); | |
| 2661 | |
| 2662 &call (&label("pic_point")); | |
| 2663 &set_label("pic_point"); | |
| 2664 &blindpop($tbl); | |
| 2665 &lea ($tbl,&DWP(&label("AES_Te")."-".&label("pic_point"),$tbl)); | |
| 2666 &lea ($tbl,&DWP(2048+128,$tbl)); | |
| 2667 | |
| 2668 # prefetch Te4 | |
| 2669 &mov ("eax",&DWP(0-128,$tbl)); | |
| 2670 &mov ("ebx",&DWP(32-128,$tbl)); | |
| 2671 &mov ("ecx",&DWP(64-128,$tbl)); | |
| 2672 &mov ("edx",&DWP(96-128,$tbl)); | |
| 2673 &mov ("eax",&DWP(128-128,$tbl)); | |
| 2674 &mov ("ebx",&DWP(160-128,$tbl)); | |
| 2675 &mov ("ecx",&DWP(192-128,$tbl)); | |
| 2676 &mov ("edx",&DWP(224-128,$tbl)); | |
| 2677 | |
| 2678 &mov ("ecx",&wparam(2)); # number of bits in key | |
| 2679 &cmp ("ecx",128); | |
| 2680 &je (&label("10rounds")); | |
| 2681 &cmp ("ecx",192); | |
| 2682 &je (&label("12rounds")); | |
| 2683 &cmp ("ecx",256); | |
| 2684 &je (&label("14rounds")); | |
| 2685 &mov ("eax",-2); # invalid number of bits | |
| 2686 &jmp (&label("exit")); | |
| 2687 | |
| 2688 &set_label("10rounds"); | |
| 2689 &mov ("eax",&DWP(0,"esi")); # copy first 4 dwords | |
| 2690 &mov ("ebx",&DWP(4,"esi")); | |
| 2691 &mov ("ecx",&DWP(8,"esi")); | |
| 2692 &mov ("edx",&DWP(12,"esi")); | |
| 2693 &mov (&DWP(0,"edi"),"eax"); | |
| 2694 &mov (&DWP(4,"edi"),"ebx"); | |
| 2695 &mov (&DWP(8,"edi"),"ecx"); | |
| 2696 &mov (&DWP(12,"edi"),"edx"); | |
| 2697 | |
| 2698 &xor ("ecx","ecx"); | |
| 2699 &jmp (&label("10shortcut")); | |
| 2700 | |
| 2701 &align (4); | |
| 2702 &set_label("10loop"); | |
| 2703 &mov ("eax",&DWP(0,"edi")); # rk[0] | |
| 2704 &mov ("edx",&DWP(12,"edi")); # rk[3] | |
| 2705 &set_label("10shortcut"); | |
| 2706 &enckey (); | |
| 2707 | |
| 2708 &mov (&DWP(16,"edi"),"eax"); # rk[4] | |
| 2709 &xor ("eax",&DWP(4,"edi")); | |
| 2710 &mov (&DWP(20,"edi"),"eax"); # rk[5] | |
| 2711 &xor ("eax",&DWP(8,"edi")); | |
| 2712 &mov (&DWP(24,"edi"),"eax"); # rk[6] | |
| 2713 &xor ("eax",&DWP(12,"edi")); | |
| 2714 &mov (&DWP(28,"edi"),"eax"); # rk[7] | |
| 2715 &inc ("ecx"); | |
| 2716 &add ("edi",16); | |
| 2717 &cmp ("ecx",10); | |
| 2718 &jl (&label("10loop")); | |
| 2719 | |
| 2720 &mov (&DWP(80,"edi"),10); # setup number of rounds | |
| 2721 &xor ("eax","eax"); | |
| 2722 &jmp (&label("exit")); | |
| 2723 | |
| 2724 &set_label("12rounds"); | |
| 2725 &mov ("eax",&DWP(0,"esi")); # copy first 6 dwords | |
| 2726 &mov ("ebx",&DWP(4,"esi")); | |
| 2727 &mov ("ecx",&DWP(8,"esi")); | |
| 2728 &mov ("edx",&DWP(12,"esi")); | |
| 2729 &mov (&DWP(0,"edi"),"eax"); | |
| 2730 &mov (&DWP(4,"edi"),"ebx"); | |
| 2731 &mov (&DWP(8,"edi"),"ecx"); | |
| 2732 &mov (&DWP(12,"edi"),"edx"); | |
| 2733 &mov ("ecx",&DWP(16,"esi")); | |
| 2734 &mov ("edx",&DWP(20,"esi")); | |
| 2735 &mov (&DWP(16,"edi"),"ecx"); | |
| 2736 &mov (&DWP(20,"edi"),"edx"); | |
| 2737 | |
| 2738 &xor ("ecx","ecx"); | |
| 2739 &jmp (&label("12shortcut")); | |
| 2740 | |
| 2741 &align (4); | |
| 2742 &set_label("12loop"); | |
| 2743 &mov ("eax",&DWP(0,"edi")); # rk[0] | |
| 2744 &mov ("edx",&DWP(20,"edi")); # rk[5] | |
| 2745 &set_label("12shortcut"); | |
| 2746 &enckey (); | |
| 2747 | |
| 2748 &mov (&DWP(24,"edi"),"eax"); # rk[6] | |
| 2749 &xor ("eax",&DWP(4,"edi")); | |
| 2750 &mov (&DWP(28,"edi"),"eax"); # rk[7] | |
| 2751 &xor ("eax",&DWP(8,"edi")); | |
| 2752 &mov (&DWP(32,"edi"),"eax"); # rk[8] | |
| 2753 &xor ("eax",&DWP(12,"edi")); | |
| 2754 &mov (&DWP(36,"edi"),"eax"); # rk[9] | |
| 2755 | |
| 2756 &cmp ("ecx",7); | |
| 2757 &je (&label("12break")); | |
| 2758 &inc ("ecx"); | |
| 2759 | |
| 2760 &xor ("eax",&DWP(16,"edi")); | |
| 2761 &mov (&DWP(40,"edi"),"eax"); # rk[10] | |
| 2762 &xor ("eax",&DWP(20,"edi")); | |
| 2763 &mov (&DWP(44,"edi"),"eax"); # rk[11] | |
| 2764 | |
| 2765 &add ("edi",24); | |
| 2766 &jmp (&label("12loop")); | |
| 2767 | |
| 2768 &set_label("12break"); | |
| 2769 &mov (&DWP(72,"edi"),12); # setup number of rounds | |
| 2770 &xor ("eax","eax"); | |
| 2771 &jmp (&label("exit")); | |
| 2772 | |
| 2773 &set_label("14rounds"); | |
| 2774 &mov ("eax",&DWP(0,"esi")); # copy first 8 dwords | |
| 2775 &mov ("ebx",&DWP(4,"esi")); | |
| 2776 &mov ("ecx",&DWP(8,"esi")); | |
| 2777 &mov ("edx",&DWP(12,"esi")); | |
| 2778 &mov (&DWP(0,"edi"),"eax"); | |
| 2779 &mov (&DWP(4,"edi"),"ebx"); | |
| 2780 &mov (&DWP(8,"edi"),"ecx"); | |
| 2781 &mov (&DWP(12,"edi"),"edx"); | |
| 2782 &mov ("eax",&DWP(16,"esi")); | |
| 2783 &mov ("ebx",&DWP(20,"esi")); | |
| 2784 &mov ("ecx",&DWP(24,"esi")); | |
| 2785 &mov ("edx",&DWP(28,"esi")); | |
| 2786 &mov (&DWP(16,"edi"),"eax"); | |
| 2787 &mov (&DWP(20,"edi"),"ebx"); | |
| 2788 &mov (&DWP(24,"edi"),"ecx"); | |
| 2789 &mov (&DWP(28,"edi"),"edx"); | |
| 2790 | |
| 2791 &xor ("ecx","ecx"); | |
| 2792 &jmp (&label("14shortcut")); | |
| 2793 | |
| 2794 &align (4); | |
| 2795 &set_label("14loop"); | |
| 2796 &mov ("edx",&DWP(28,"edi")); # rk[7] | |
| 2797 &set_label("14shortcut"); | |
| 2798 &mov ("eax",&DWP(0,"edi")); # rk[0] | |
| 2799 | |
| 2800 &enckey (); | |
| 2801 | |
| 2802 &mov (&DWP(32,"edi"),"eax"); # rk[8] | |
| 2803 &xor ("eax",&DWP(4,"edi")); | |
| 2804 &mov (&DWP(36,"edi"),"eax"); # rk[9] | |
| 2805 &xor ("eax",&DWP(8,"edi")); | |
| 2806 &mov (&DWP(40,"edi"),"eax"); # rk[10] | |
| 2807 &xor ("eax",&DWP(12,"edi")); | |
| 2808 &mov (&DWP(44,"edi"),"eax"); # rk[11] | |
| 2809 | |
| 2810 &cmp ("ecx",6); | |
| 2811 &je (&label("14break")); | |
| 2812 &inc ("ecx"); | |
| 2813 | |
| 2814 &mov ("edx","eax"); | |
| 2815 &mov ("eax",&DWP(16,"edi")); # rk[4] | |
| 2816 &movz ("esi",&LB("edx")); # rk[11]>>0 | |
| 2817 &movz ("ebx",&BP(-128,$tbl,"esi",1)); | |
| 2818 &movz ("esi",&HB("edx")); # rk[11]>>8 | |
| 2819 &xor ("eax","ebx"); | |
| 2820 | |
| 2821 &movz ("ebx",&BP(-128,$tbl,"esi",1)); | |
| 2822 &shr ("edx",16); | |
| 2823 &shl ("ebx",8); | |
| 2824 &movz ("esi",&LB("edx")); # rk[11]>>16 | |
| 2825 &xor ("eax","ebx"); | |
| 2826 | |
| 2827 &movz ("ebx",&BP(-128,$tbl,"esi",1)); | |
| 2828 &movz ("esi",&HB("edx")); # rk[11]>>24 | |
| 2829 &shl ("ebx",16); | |
| 2830 &xor ("eax","ebx"); | |
| 2831 | |
| 2832 &movz ("ebx",&BP(-128,$tbl,"esi",1)); | |
| 2833 &shl ("ebx",24); | |
| 2834 &xor ("eax","ebx"); | |
| 2835 | |
| 2836 &mov (&DWP(48,"edi"),"eax"); # rk[12] | |
| 2837 &xor ("eax",&DWP(20,"edi")); | |
| 2838 &mov (&DWP(52,"edi"),"eax"); # rk[13] | |
| 2839 &xor ("eax",&DWP(24,"edi")); | |
| 2840 &mov (&DWP(56,"edi"),"eax"); # rk[14] | |
| 2841 &xor ("eax",&DWP(28,"edi")); | |
| 2842 &mov (&DWP(60,"edi"),"eax"); # rk[15] | |
| 2843 | |
| 2844 &add ("edi",32); | |
| 2845 &jmp (&label("14loop")); | |
| 2846 | |
| 2847 &set_label("14break"); | |
| 2848 &mov (&DWP(48,"edi"),14); # setup number of rounds | |
| 2849 &xor ("eax","eax"); | |
| 2850 &jmp (&label("exit")); | |
| 2851 | |
| 2852 &set_label("badpointer"); | |
| 2853 &mov ("eax",-1); | |
| 2854 &set_label("exit"); | |
| 2855 &function_end("_x86_AES_set_encrypt_key"); | |
| 2856 | |
| 2857 # int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits, | |
| 2858 # AES_KEY *key) | |
| 2859 &function_begin_B("private_AES_set_encrypt_key"); | |
| 2860 &call ("_x86_AES_set_encrypt_key"); | |
| 2861 &ret (); | |
| 2862 &function_end_B("private_AES_set_encrypt_key"); | |
| 2863 | |
| 2864 sub deckey() | |
| 2865 { my ($i,$key,$tp1,$tp2,$tp4,$tp8) = @_; | |
| 2866 my $tmp = $tbl; | |
| 2867 | |
| 2868 &mov ($acc,$tp1); | |
| 2869 &and ($acc,0x80808080); | |
| 2870 &mov ($tmp,$acc); | |
| 2871 &shr ($tmp,7); | |
| 2872 &lea ($tp2,&DWP(0,$tp1,$tp1)); | |
| 2873 &sub ($acc,$tmp); | |
| 2874 &and ($tp2,0xfefefefe); | |
| 2875 &and ($acc,0x1b1b1b1b); | |
| 2876 &xor ($acc,$tp2); | |
| 2877 &mov ($tp2,$acc); | |
| 2878 | |
| 2879 &and ($acc,0x80808080); | |
| 2880 &mov ($tmp,$acc); | |
| 2881 &shr ($tmp,7); | |
| 2882 &lea ($tp4,&DWP(0,$tp2,$tp2)); | |
| 2883 &sub ($acc,$tmp); | |
| 2884 &and ($tp4,0xfefefefe); | |
| 2885 &and ($acc,0x1b1b1b1b); | |
| 2886 &xor ($tp2,$tp1); # tp2^tp1 | |
| 2887 &xor ($acc,$tp4); | |
| 2888 &mov ($tp4,$acc); | |
| 2889 | |
| 2890 &and ($acc,0x80808080); | |
| 2891 &mov ($tmp,$acc); | |
| 2892 &shr ($tmp,7); | |
| 2893 &lea ($tp8,&DWP(0,$tp4,$tp4)); | |
| 2894 &xor ($tp4,$tp1); # tp4^tp1 | |
| 2895 &sub ($acc,$tmp); | |
| 2896 &and ($tp8,0xfefefefe); | |
| 2897 &and ($acc,0x1b1b1b1b); | |
| 2898 &rotl ($tp1,8); # = ROTATE(tp1,8) | |
| 2899 &xor ($tp8,$acc); | |
| 2900 | |
| 2901 &mov ($tmp,&DWP(4*($i+1),$key)); # modulo-scheduled load | |
| 2902 | |
| 2903 &xor ($tp1,$tp2); | |
| 2904 &xor ($tp2,$tp8); | |
| 2905 &xor ($tp1,$tp4); | |
| 2906 &rotl ($tp2,24); | |
| 2907 &xor ($tp4,$tp8); | |
| 2908 &xor ($tp1,$tp8); # ^= tp8^(tp4^tp1)^(tp2^tp1) | |
| 2909 &rotl ($tp4,16); | |
| 2910 &xor ($tp1,$tp2); # ^= ROTATE(tp8^tp2^tp1,24) | |
| 2911 &rotl ($tp8,8); | |
| 2912 &xor ($tp1,$tp4); # ^= ROTATE(tp8^tp4^tp1,16) | |
| 2913 &mov ($tp2,$tmp); | |
| 2914 &xor ($tp1,$tp8); # ^= ROTATE(tp8,8) | |
| 2915 | |
| 2916 &mov (&DWP(4*$i,$key),$tp1); | |
| 2917 } | |
| 2918 | |
| 2919 # int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits, | |
| 2920 # AES_KEY *key) | |
| 2921 &function_begin_B("private_AES_set_decrypt_key"); | |
| 2922 &call ("_x86_AES_set_encrypt_key"); | |
| 2923 &cmp ("eax",0); | |
| 2924 &je (&label("proceed")); | |
| 2925 &ret (); | |
| 2926 | |
| 2927 &set_label("proceed"); | |
| 2928 &push ("ebp"); | |
| 2929 &push ("ebx"); | |
| 2930 &push ("esi"); | |
| 2931 &push ("edi"); | |
| 2932 | |
| 2933 &mov ("esi",&wparam(2)); | |
| 2934 &mov ("ecx",&DWP(240,"esi")); # pull number of rounds | |
| 2935 &lea ("ecx",&DWP(0,"","ecx",4)); | |
| 2936 &lea ("edi",&DWP(0,"esi","ecx",4)); # pointer to last chunk | |
| 2937 | |
| 2938 &set_label("invert",4); # invert order of chunks | |
| 2939 &mov ("eax",&DWP(0,"esi")); | |
| 2940 &mov ("ebx",&DWP(4,"esi")); | |
| 2941 &mov ("ecx",&DWP(0,"edi")); | |
| 2942 &mov ("edx",&DWP(4,"edi")); | |
| 2943 &mov (&DWP(0,"edi"),"eax"); | |
| 2944 &mov (&DWP(4,"edi"),"ebx"); | |
| 2945 &mov (&DWP(0,"esi"),"ecx"); | |
| 2946 &mov (&DWP(4,"esi"),"edx"); | |
| 2947 &mov ("eax",&DWP(8,"esi")); | |
| 2948 &mov ("ebx",&DWP(12,"esi")); | |
| 2949 &mov ("ecx",&DWP(8,"edi")); | |
| 2950 &mov ("edx",&DWP(12,"edi")); | |
| 2951 &mov (&DWP(8,"edi"),"eax"); | |
| 2952 &mov (&DWP(12,"edi"),"ebx"); | |
| 2953 &mov (&DWP(8,"esi"),"ecx"); | |
| 2954 &mov (&DWP(12,"esi"),"edx"); | |
| 2955 &add ("esi",16); | |
| 2956 &sub ("edi",16); | |
| 2957 &cmp ("esi","edi"); | |
| 2958 &jne (&label("invert")); | |
| 2959 | |
| 2960 &mov ($key,&wparam(2)); | |
| 2961 &mov ($acc,&DWP(240,$key)); # pull number of rounds | |
| 2962 &lea ($acc,&DWP(-2,$acc,$acc)); | |
| 2963 &lea ($acc,&DWP(0,$key,$acc,8)); | |
| 2964 &mov (&wparam(2),$acc); | |
| 2965 | |
| 2966 &mov ($s0,&DWP(16,$key)); # modulo-scheduled load | |
| 2967 &set_label("permute",4); # permute the key schedule | |
| 2968 &add ($key,16); | |
| 2969 &deckey (0,$key,$s0,$s1,$s2,$s3); | |
| 2970 &deckey (1,$key,$s1,$s2,$s3,$s0); | |
| 2971 &deckey (2,$key,$s2,$s3,$s0,$s1); | |
| 2972 &deckey (3,$key,$s3,$s0,$s1,$s2); | |
| 2973 &cmp ($key,&wparam(2)); | |
| 2974 &jb (&label("permute")); | |
| 2975 | |
| 2976 &xor ("eax","eax"); # return success | |
| 2977 &function_end("private_AES_set_decrypt_key"); | |
| 2978 &asciz("AES for x86, CRYPTOGAMS by <appro\@openssl.org>"); | |
| 2979 | |
| 2980 &asm_finish(); | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master