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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 # SHA256 block transform for x86. September 2007. | |
| 11 # | |
| 12 # Performance in clock cycles per processed byte (less is better): | |
| 13 # | |
| 14 # Pentium PIII P4 AMD K8 Core2 | |
| 15 # gcc 46 36 41 27 26 | |
| 16 # icc 57 33 38 25 23 | |
| 17 # x86 asm 40 30 33 20 18 | |
| 18 # x86_64 asm(*) - - 21 16 16 | |
| 19 # | |
| 20 # (*) x86_64 assembler performance is presented for reference | |
| 21 # purposes. | |
| 22 # | |
| 23 # Performance improvement over compiler generated code varies from | |
| 24 # 10% to 40% [see above]. Not very impressive on some ยต-archs, but | |
| 25 # it's 5 times smaller and optimizies amount of writes. | |
| 26 | |
| 27 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; | |
| 28 push(@INC,"${dir}","${dir}../../perlasm"); | |
| 29 require "x86asm.pl"; | |
| 30 | |
| 31 &asm_init($ARGV[0],"sha512-586.pl",$ARGV[$#ARGV] eq "386"); | |
| 32 | |
| 33 $A="eax"; | |
| 34 $E="edx"; | |
| 35 $T="ebx"; | |
| 36 $Aoff=&DWP(0,"esp"); | |
| 37 $Boff=&DWP(4,"esp"); | |
| 38 $Coff=&DWP(8,"esp"); | |
| 39 $Doff=&DWP(12,"esp"); | |
| 40 $Eoff=&DWP(16,"esp"); | |
| 41 $Foff=&DWP(20,"esp"); | |
| 42 $Goff=&DWP(24,"esp"); | |
| 43 $Hoff=&DWP(28,"esp"); | |
| 44 $Xoff=&DWP(32,"esp"); | |
| 45 $K256="ebp"; | |
| 46 | |
| 47 sub BODY_00_15() { | |
| 48 my $in_16_63=shift; | |
| 49 | |
| 50 &mov ("ecx",$E); | |
| 51 &add ($T,"edi") if ($in_16_63); # T += sigma1(X[
-2]) | |
| 52 &ror ("ecx",25-11); | |
| 53 &mov ("esi",$Foff); | |
| 54 &xor ("ecx",$E); | |
| 55 &ror ("ecx",11-6); | |
| 56 &mov (&DWP(4*(8+15),"esp"),$T) if ($in_16_63); # save X[0] | |
| 57 &xor ("ecx",$E); | |
| 58 &ror ("ecx",6); # Sigma1(e) | |
| 59 &mov ("edi",$Goff); | |
| 60 &add ($T,"ecx"); # T += Sigma1(e) | |
| 61 | |
| 62 &xor ("esi","edi"); | |
| 63 &mov ($Eoff,$E); # modulo-scheduled | |
| 64 &mov ("ecx",$A); | |
| 65 &and ("esi",$E); | |
| 66 &mov ($E,$Doff); # e becomes d, which is e in next iteration | |
| 67 &xor ("esi","edi"); # Ch(e,f,g) | |
| 68 &mov ("edi",$A); | |
| 69 &add ($T,"esi"); # T += Ch(e,f,g) | |
| 70 | |
| 71 &ror ("ecx",22-13); | |
| 72 &add ($T,$Hoff); # T += h | |
| 73 &xor ("ecx",$A); | |
| 74 &ror ("ecx",13-2); | |
| 75 &mov ("esi",$Boff); | |
| 76 &xor ("ecx",$A); | |
| 77 &ror ("ecx",2); # Sigma0(a) | |
| 78 &add ($E,$T); # d += T | |
| 79 &mov ("edi",$Coff); | |
| 80 | |
| 81 &add ($T,"ecx"); # T += Sigma0(a) | |
| 82 &mov ($Aoff,$A); # modulo-scheduled | |
| 83 | |
| 84 &mov ("ecx",$A); | |
| 85 &sub ("esp",4); | |
| 86 &or ($A,"esi"); # a becomes h, which is a in next iteration | |
| 87 &and ("ecx","esi"); | |
| 88 &and ($A,"edi"); | |
| 89 &mov ("esi",&DWP(0,$K256)); | |
| 90 &or ($A,"ecx"); # h=Maj(a,b,c) | |
| 91 | |
| 92 &add ($K256,4); | |
| 93 &add ($A,$T); # h += T | |
| 94 &mov ($T,&DWP(4*(8+15+16-1),"esp")) if ($in_16_63); # preload T | |
| 95 &add ($E,"esi"); # d += K256[i] | |
| 96 &add ($A,"esi"); # h += K256[i] | |
| 97 } | |
| 98 | |
| 99 &function_begin("sha256_block_data_order"); | |
| 100 &mov ("esi",wparam(0)); # ctx | |
| 101 &mov ("edi",wparam(1)); # inp | |
| 102 &mov ("eax",wparam(2)); # num | |
| 103 &mov ("ebx","esp"); # saved sp | |
| 104 | |
| 105 &call (&label("pic_point")); # make it PIC! | |
| 106 &set_label("pic_point"); | |
| 107 &blindpop($K256); | |
| 108 &lea ($K256,&DWP(&label("K256")."-".&label("pic_point"),$K256)); | |
| 109 | |
| 110 &sub ("esp",16); | |
| 111 &and ("esp",-64); | |
| 112 | |
| 113 &shl ("eax",6); | |
| 114 &add ("eax","edi"); | |
| 115 &mov (&DWP(0,"esp"),"esi"); # ctx | |
| 116 &mov (&DWP(4,"esp"),"edi"); # inp | |
| 117 &mov (&DWP(8,"esp"),"eax"); # inp+num*128 | |
| 118 &mov (&DWP(12,"esp"),"ebx"); # saved sp | |
| 119 | |
| 120 &set_label("loop",16); | |
| 121 # copy input block to stack reversing byte and dword order | |
| 122 for($i=0;$i<4;$i++) { | |
| 123 &mov ("eax",&DWP($i*16+0,"edi")); | |
| 124 &mov ("ebx",&DWP($i*16+4,"edi")); | |
| 125 &mov ("ecx",&DWP($i*16+8,"edi")); | |
| 126 &mov ("edx",&DWP($i*16+12,"edi")); | |
| 127 &bswap ("eax"); | |
| 128 &bswap ("ebx"); | |
| 129 &bswap ("ecx"); | |
| 130 &bswap ("edx"); | |
| 131 &push ("eax"); | |
| 132 &push ("ebx"); | |
| 133 &push ("ecx"); | |
| 134 &push ("edx"); | |
| 135 } | |
| 136 &add ("edi",64); | |
| 137 &sub ("esp",4*8); # place for A,B,C,D,E,F,G,H | |
| 138 &mov (&DWP(4*(8+16)+4,"esp"),"edi"); | |
| 139 | |
| 140 # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack | |
| 141 &mov ($A,&DWP(0,"esi")); | |
| 142 &mov ("ebx",&DWP(4,"esi")); | |
| 143 &mov ("ecx",&DWP(8,"esi")); | |
| 144 &mov ("edi",&DWP(12,"esi")); | |
| 145 # &mov ($Aoff,$A); | |
| 146 &mov ($Boff,"ebx"); | |
| 147 &mov ($Coff,"ecx"); | |
| 148 &mov ($Doff,"edi"); | |
| 149 &mov ($E,&DWP(16,"esi")); | |
| 150 &mov ("ebx",&DWP(20,"esi")); | |
| 151 &mov ("ecx",&DWP(24,"esi")); | |
| 152 &mov ("edi",&DWP(28,"esi")); | |
| 153 # &mov ($Eoff,$E); | |
| 154 &mov ($Foff,"ebx"); | |
| 155 &mov ($Goff,"ecx"); | |
| 156 &mov ($Hoff,"edi"); | |
| 157 | |
| 158 &set_label("00_15",16); | |
| 159 &mov ($T,&DWP(4*(8+15),"esp")); | |
| 160 | |
| 161 &BODY_00_15(); | |
| 162 | |
| 163 &cmp ("esi",0xc19bf174); | |
| 164 &jne (&label("00_15")); | |
| 165 | |
| 166 &mov ($T,&DWP(4*(8+15+16-1),"esp")); # preloaded in BODY_00_15(1) | |
| 167 &set_label("16_63",16); | |
| 168 &mov ("esi",$T); | |
| 169 &mov ("ecx",&DWP(4*(8+15+16-14),"esp")); | |
| 170 &ror ("esi",18-7); | |
| 171 &mov ("edi","ecx"); | |
| 172 &xor ("esi",$T); | |
| 173 &ror ("esi",7); | |
| 174 &shr ($T,3); | |
| 175 | |
| 176 &ror ("edi",19-17); | |
| 177 &xor ($T,"esi"); # T = sigma0(X[-15]) | |
| 178 &xor ("edi","ecx"); | |
| 179 &ror ("edi",17); | |
| 180 &shr ("ecx",10); | |
| 181 &add ($T,&DWP(4*(8+15+16),"esp")); # T += X[-16] | |
| 182 &xor ("edi","ecx"); # sigma1(X[-2]) | |
| 183 | |
| 184 &add ($T,&DWP(4*(8+15+16-9),"esp")); # T += X[-7] | |
| 185 # &add ($T,"edi"); # T += sigma1(X[-2]) | |
| 186 # &mov (&DWP(4*(8+15),"esp"),$T); # save X[0] | |
| 187 | |
| 188 &BODY_00_15(1); | |
| 189 | |
| 190 &cmp ("esi",0xc67178f2); | |
| 191 &jne (&label("16_63")); | |
| 192 | |
| 193 &mov ("esi",&DWP(4*(8+16+64)+0,"esp"));#ctx | |
| 194 # &mov ($A,$Aoff); | |
| 195 &mov ("ebx",$Boff); | |
| 196 &mov ("ecx",$Coff); | |
| 197 &mov ("edi",$Doff); | |
| 198 &add ($A,&DWP(0,"esi")); | |
| 199 &add ("ebx",&DWP(4,"esi")); | |
| 200 &add ("ecx",&DWP(8,"esi")); | |
| 201 &add ("edi",&DWP(12,"esi")); | |
| 202 &mov (&DWP(0,"esi"),$A); | |
| 203 &mov (&DWP(4,"esi"),"ebx"); | |
| 204 &mov (&DWP(8,"esi"),"ecx"); | |
| 205 &mov (&DWP(12,"esi"),"edi"); | |
| 206 # &mov ($E,$Eoff); | |
| 207 &mov ("eax",$Foff); | |
| 208 &mov ("ebx",$Goff); | |
| 209 &mov ("ecx",$Hoff); | |
| 210 &mov ("edi",&DWP(4*(8+16+64)+4,"esp"));#inp | |
| 211 &add ($E,&DWP(16,"esi")); | |
| 212 &add ("eax",&DWP(20,"esi")); | |
| 213 &add ("ebx",&DWP(24,"esi")); | |
| 214 &add ("ecx",&DWP(28,"esi")); | |
| 215 &mov (&DWP(16,"esi"),$E); | |
| 216 &mov (&DWP(20,"esi"),"eax"); | |
| 217 &mov (&DWP(24,"esi"),"ebx"); | |
| 218 &mov (&DWP(28,"esi"),"ecx"); | |
| 219 | |
| 220 &add ("esp",4*(8+16+64)); # destroy frame | |
| 221 &sub ($K256,4*64); # rewind K | |
| 222 | |
| 223 &cmp ("edi",&DWP(8,"esp")); # are we done yet? | |
| 224 &jb (&label("loop")); | |
| 225 | |
| 226 &mov ("esp",&DWP(12,"esp")); # restore sp | |
| 227 &function_end_A(); | |
| 228 | |
| 229 &set_label("K256",64); # Yes! I keep it in the code segment! | |
| 230 &data_word(0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5); | |
| 231 &data_word(0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5); | |
| 232 &data_word(0xd807aa98,0x12835b01,0x243185be,0x550c7dc3); | |
| 233 &data_word(0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174); | |
| 234 &data_word(0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc); | |
| 235 &data_word(0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da); | |
| 236 &data_word(0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7); | |
| 237 &data_word(0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967); | |
| 238 &data_word(0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13); | |
| 239 &data_word(0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85); | |
| 240 &data_word(0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3); | |
| 241 &data_word(0xd192e819,0xd6990624,0xf40e3585,0x106aa070); | |
| 242 &data_word(0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5); | |
| 243 &data_word(0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3); | |
| 244 &data_word(0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208); | |
| 245 &data_word(0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2); | |
| 246 &function_end_B("sha256_block_data_order"); | |
| 247 &asciz("SHA256 block transform for x86, CRYPTOGAMS by <appro\@openssl.org>"); | |
| 248 | |
| 249 &asm_finish(); | |
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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