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Side by Side Diff: third_party/boringssl/linux-arm/crypto/aes/aes-armv4.S

Issue 377783004: Add BoringSSL GYP files. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Final Python fix. Created 6 years, 5 months ago
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1
2 @ ====================================================================
3 @ Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
4 @ project. The module is, however, dual licensed under OpenSSL and
5 @ CRYPTOGAMS licenses depending on where you obtain it. For further
6 @ details see http://www.openssl.org/~appro/cryptogams/.
7 @ ====================================================================
8
9 @ AES for ARMv4
10
11 @ January 2007.
12 @
13 @ Code uses single 1K S-box and is >2 times faster than code generated
14 @ by gcc-3.4.1. This is thanks to unique feature of ARMv4 ISA, which
15 @ allows to merge logical or arithmetic operation with shift or rotate
16 @ in one instruction and emit combined result every cycle. The module
17 @ is endian-neutral. The performance is ~42 cycles/byte for 128-bit
18 @ key [on single-issue Xscale PXA250 core].
19
20 @ May 2007.
21 @
22 @ AES_set_[en|de]crypt_key is added.
23
24 @ July 2010.
25 @
26 @ Rescheduling for dual-issue pipeline resulted in 12% improvement on
27 @ Cortex A8 core and ~25 cycles per byte processed with 128-bit key.
28
29 @ February 2011.
30 @
31 @ Profiler-assisted and platform-specific optimization resulted in 16%
32 @ improvement on Cortex A8 core and ~21.5 cycles per byte.
33
34 #if defined(__arm__)
35 #ifndef __KERNEL__
36 # include "arm_arch.h"
37 #else
38 # define __ARM_ARCH__ __LINUX_ARM_ARCH__
39 #endif
40
41 .text
42 #if __ARM_ARCH__<7
43 .code 32
44 #else
45 .syntax unified
46 # ifdef __thumb2__
47 .thumb
48 # else
49 .code 32
50 # endif
51 #endif
52
53 .type AES_Te,%object
54 .align 5
55 AES_Te:
56 .word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d
57 .word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554
58 .word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d
59 .word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a
60 .word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87
61 .word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b
62 .word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea
63 .word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b
64 .word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a
65 .word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f
66 .word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108
67 .word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f
68 .word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e
69 .word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5
70 .word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d
71 .word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f
72 .word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e
73 .word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb
74 .word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce
75 .word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497
76 .word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c
77 .word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed
78 .word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b
79 .word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a
80 .word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16
81 .word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594
82 .word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81
83 .word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3
84 .word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a
85 .word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504
86 .word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163
87 .word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d
88 .word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f
89 .word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739
90 .word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47
91 .word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395
92 .word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f
93 .word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883
94 .word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c
95 .word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76
96 .word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e
97 .word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4
98 .word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6
99 .word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b
100 .word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7
101 .word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0
102 .word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25
103 .word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818
104 .word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72
105 .word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651
106 .word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21
107 .word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85
108 .word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa
109 .word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12
110 .word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0
111 .word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9
112 .word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133
113 .word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7
114 .word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920
115 .word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a
116 .word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17
117 .word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8
118 .word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11
119 .word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a
120 @ Te4[256]
121 .byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5
122 .byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76
123 .byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0
124 .byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0
125 .byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc
126 .byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15
127 .byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a
128 .byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75
129 .byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0
130 .byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84
131 .byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b
132 .byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf
133 .byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85
134 .byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8
135 .byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5
136 .byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2
137 .byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17
138 .byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73
139 .byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88
140 .byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb
141 .byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c
142 .byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79
143 .byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9
144 .byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08
145 .byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6
146 .byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a
147 .byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e
148 .byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e
149 .byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94
150 .byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf
151 .byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68
152 .byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
153 @ rcon[]
154 .word 0x01000000, 0x02000000, 0x04000000, 0x08000000
155 .word 0x10000000, 0x20000000, 0x40000000, 0x80000000
156 .word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0
157 .size AES_Te,.-AES_Te
158
159 @ void AES_encrypt(const unsigned char *in, unsigned char *out,
160 @ const AES_KEY *key) {
161 .global AES_encrypt
162 .type AES_encrypt,%function
163 .align 5
164 AES_encrypt:
165 #if __ARM_ARCH__<7
166 sub r3,pc,#8 @ AES_encrypt
167 #else
168 adr r3,AES_encrypt
169 #endif
170 stmdb sp!,{r1,r4-r12,lr}
171 mov r12,r0 @ inp
172 mov r11,r2
173 sub r10,r3,#AES_encrypt-AES_Te @ Te
174 #if __ARM_ARCH__<7
175 ldrb r0,[r12,#3] @ load input data in endian-neutral
176 ldrb r4,[r12,#2] @ manner...
177 ldrb r5,[r12,#1]
178 ldrb r6,[r12,#0]
179 orr r0,r0,r4,lsl#8
180 ldrb r1,[r12,#7]
181 orr r0,r0,r5,lsl#16
182 ldrb r4,[r12,#6]
183 orr r0,r0,r6,lsl#24
184 ldrb r5,[r12,#5]
185 ldrb r6,[r12,#4]
186 orr r1,r1,r4,lsl#8
187 ldrb r2,[r12,#11]
188 orr r1,r1,r5,lsl#16
189 ldrb r4,[r12,#10]
190 orr r1,r1,r6,lsl#24
191 ldrb r5,[r12,#9]
192 ldrb r6,[r12,#8]
193 orr r2,r2,r4,lsl#8
194 ldrb r3,[r12,#15]
195 orr r2,r2,r5,lsl#16
196 ldrb r4,[r12,#14]
197 orr r2,r2,r6,lsl#24
198 ldrb r5,[r12,#13]
199 ldrb r6,[r12,#12]
200 orr r3,r3,r4,lsl#8
201 orr r3,r3,r5,lsl#16
202 orr r3,r3,r6,lsl#24
203 #else
204 ldr r0,[r12,#0]
205 ldr r1,[r12,#4]
206 ldr r2,[r12,#8]
207 ldr r3,[r12,#12]
208 #ifdef __ARMEL__
209 rev r0,r0
210 rev r1,r1
211 rev r2,r2
212 rev r3,r3
213 #endif
214 #endif
215 bl _armv4_AES_encrypt
216
217 ldr r12,[sp],#4 @ pop out
218 #if __ARM_ARCH__>=7
219 #ifdef __ARMEL__
220 rev r0,r0
221 rev r1,r1
222 rev r2,r2
223 rev r3,r3
224 #endif
225 str r0,[r12,#0]
226 str r1,[r12,#4]
227 str r2,[r12,#8]
228 str r3,[r12,#12]
229 #else
230 mov r4,r0,lsr#24 @ write output in endian-neutral
231 mov r5,r0,lsr#16 @ manner...
232 mov r6,r0,lsr#8
233 strb r4,[r12,#0]
234 strb r5,[r12,#1]
235 mov r4,r1,lsr#24
236 strb r6,[r12,#2]
237 mov r5,r1,lsr#16
238 strb r0,[r12,#3]
239 mov r6,r1,lsr#8
240 strb r4,[r12,#4]
241 strb r5,[r12,#5]
242 mov r4,r2,lsr#24
243 strb r6,[r12,#6]
244 mov r5,r2,lsr#16
245 strb r1,[r12,#7]
246 mov r6,r2,lsr#8
247 strb r4,[r12,#8]
248 strb r5,[r12,#9]
249 mov r4,r3,lsr#24
250 strb r6,[r12,#10]
251 mov r5,r3,lsr#16
252 strb r2,[r12,#11]
253 mov r6,r3,lsr#8
254 strb r4,[r12,#12]
255 strb r5,[r12,#13]
256 strb r6,[r12,#14]
257 strb r3,[r12,#15]
258 #endif
259 #if __ARM_ARCH__>=5
260 ldmia sp!,{r4-r12,pc}
261 #else
262 ldmia sp!,{r4-r12,lr}
263 tst lr,#1
264 moveq pc,lr @ be binary compatible with V4, yet
265 .word 0xe12fff1e @ interoperable with Thumb ISA:- )
266 #endif
267 .size AES_encrypt,.-AES_encrypt
268
269 .type _armv4_AES_encrypt,%function
270 .align 2
271 _armv4_AES_encrypt:
272 str lr,[sp,#-4]! @ push lr
273 ldmia r11!,{r4-r7}
274 eor r0,r0,r4
275 ldr r12,[r11,#240-16]
276 eor r1,r1,r5
277 eor r2,r2,r6
278 eor r3,r3,r7
279 sub r12,r12,#1
280 mov lr,#255
281
282 and r7,lr,r0
283 and r8,lr,r0,lsr#8
284 and r9,lr,r0,lsr#16
285 mov r0,r0,lsr#24
286 .Lenc_loop:
287 ldr r4,[r10,r7,lsl#2] @ Te3[s0>>0]
288 and r7,lr,r1,lsr#16 @ i0
289 ldr r5,[r10,r8,lsl#2] @ Te2[s0>>8]
290 and r8,lr,r1
291 ldr r6,[r10,r9,lsl#2] @ Te1[s0>>16]
292 and r9,lr,r1,lsr#8
293 ldr r0,[r10,r0,lsl#2] @ Te0[s0>>24]
294 mov r1,r1,lsr#24
295
296 ldr r7,[r10,r7,lsl#2] @ Te1[s1>>16]
297 ldr r8,[r10,r8,lsl#2] @ Te3[s1>>0]
298 ldr r9,[r10,r9,lsl#2] @ Te2[s1>>8]
299 eor r0,r0,r7,ror#8
300 ldr r1,[r10,r1,lsl#2] @ Te0[s1>>24]
301 and r7,lr,r2,lsr#8 @ i0
302 eor r5,r5,r8,ror#8
303 and r8,lr,r2,lsr#16 @ i1
304 eor r6,r6,r9,ror#8
305 and r9,lr,r2
306 ldr r7,[r10,r7,lsl#2] @ Te2[s2>>8]
307 eor r1,r1,r4,ror#24
308 ldr r8,[r10,r8,lsl#2] @ Te1[s2>>16]
309 mov r2,r2,lsr#24
310
311 ldr r9,[r10,r9,lsl#2] @ Te3[s2>>0]
312 eor r0,r0,r7,ror#16
313 ldr r2,[r10,r2,lsl#2] @ Te0[s2>>24]
314 and r7,lr,r3 @ i0
315 eor r1,r1,r8,ror#8
316 and r8,lr,r3,lsr#8 @ i1
317 eor r6,r6,r9,ror#16
318 and r9,lr,r3,lsr#16 @ i2
319 ldr r7,[r10,r7,lsl#2] @ Te3[s3>>0]
320 eor r2,r2,r5,ror#16
321 ldr r8,[r10,r8,lsl#2] @ Te2[s3>>8]
322 mov r3,r3,lsr#24
323
324 ldr r9,[r10,r9,lsl#2] @ Te1[s3>>16]
325 eor r0,r0,r7,ror#24
326 ldr r7,[r11],#16
327 eor r1,r1,r8,ror#16
328 ldr r3,[r10,r3,lsl#2] @ Te0[s3>>24]
329 eor r2,r2,r9,ror#8
330 ldr r4,[r11,#-12]
331 eor r3,r3,r6,ror#8
332
333 ldr r5,[r11,#-8]
334 eor r0,r0,r7
335 ldr r6,[r11,#-4]
336 and r7,lr,r0
337 eor r1,r1,r4
338 and r8,lr,r0,lsr#8
339 eor r2,r2,r5
340 and r9,lr,r0,lsr#16
341 eor r3,r3,r6
342 mov r0,r0,lsr#24
343
344 subs r12,r12,#1
345 bne .Lenc_loop
346
347 add r10,r10,#2
348
349 ldrb r4,[r10,r7,lsl#2] @ Te4[s0>>0]
350 and r7,lr,r1,lsr#16 @ i0
351 ldrb r5,[r10,r8,lsl#2] @ Te4[s0>>8]
352 and r8,lr,r1
353 ldrb r6,[r10,r9,lsl#2] @ Te4[s0>>16]
354 and r9,lr,r1,lsr#8
355 ldrb r0,[r10,r0,lsl#2] @ Te4[s0>>24]
356 mov r1,r1,lsr#24
357
358 ldrb r7,[r10,r7,lsl#2] @ Te4[s1>>16]
359 ldrb r8,[r10,r8,lsl#2] @ Te4[s1>>0]
360 ldrb r9,[r10,r9,lsl#2] @ Te4[s1>>8]
361 eor r0,r7,r0,lsl#8
362 ldrb r1,[r10,r1,lsl#2] @ Te4[s1>>24]
363 and r7,lr,r2,lsr#8 @ i0
364 eor r5,r8,r5,lsl#8
365 and r8,lr,r2,lsr#16 @ i1
366 eor r6,r9,r6,lsl#8
367 and r9,lr,r2
368 ldrb r7,[r10,r7,lsl#2] @ Te4[s2>>8]
369 eor r1,r4,r1,lsl#24
370 ldrb r8,[r10,r8,lsl#2] @ Te4[s2>>16]
371 mov r2,r2,lsr#24
372
373 ldrb r9,[r10,r9,lsl#2] @ Te4[s2>>0]
374 eor r0,r7,r0,lsl#8
375 ldrb r2,[r10,r2,lsl#2] @ Te4[s2>>24]
376 and r7,lr,r3 @ i0
377 eor r1,r1,r8,lsl#16
378 and r8,lr,r3,lsr#8 @ i1
379 eor r6,r9,r6,lsl#8
380 and r9,lr,r3,lsr#16 @ i2
381 ldrb r7,[r10,r7,lsl#2] @ Te4[s3>>0]
382 eor r2,r5,r2,lsl#24
383 ldrb r8,[r10,r8,lsl#2] @ Te4[s3>>8]
384 mov r3,r3,lsr#24
385
386 ldrb r9,[r10,r9,lsl#2] @ Te4[s3>>16]
387 eor r0,r7,r0,lsl#8
388 ldr r7,[r11,#0]
389 ldrb r3,[r10,r3,lsl#2] @ Te4[s3>>24]
390 eor r1,r1,r8,lsl#8
391 ldr r4,[r11,#4]
392 eor r2,r2,r9,lsl#16
393 ldr r5,[r11,#8]
394 eor r3,r6,r3,lsl#24
395 ldr r6,[r11,#12]
396
397 eor r0,r0,r7
398 eor r1,r1,r4
399 eor r2,r2,r5
400 eor r3,r3,r6
401
402 sub r10,r10,#2
403 ldr pc,[sp],#4 @ pop and return
404 .size _armv4_AES_encrypt,.-_armv4_AES_encrypt
405
406 .global AES_set_encrypt_key
407 .type AES_set_encrypt_key,%function
408 .align 5
409 AES_set_encrypt_key:
410 _armv4_AES_set_encrypt_key:
411 #if __ARM_ARCH__<7
412 sub r3,pc,#8 @ AES_set_encrypt_key
413 #else
414 adr r3,AES_set_encrypt_key
415 #endif
416 teq r0,#0
417 #if __ARM_ARCH__>=7
418 itt eq @ Thumb2 thing, sanity check in ARM
419 #endif
420 moveq r0,#-1
421 beq .Labrt
422 teq r2,#0
423 #if __ARM_ARCH__>=7
424 itt eq @ Thumb2 thing, sanity check in ARM
425 #endif
426 moveq r0,#-1
427 beq .Labrt
428
429 teq r1,#128
430 beq .Lok
431 teq r1,#192
432 beq .Lok
433 teq r1,#256
434 #if __ARM_ARCH__>=7
435 itt ne @ Thumb2 thing, sanity check in ARM
436 #endif
437 movne r0,#-1
438 bne .Labrt
439
440 .Lok: stmdb sp!,{r4-r12,lr}
441 sub r10,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4
442
443 mov r12,r0 @ inp
444 mov lr,r1 @ bits
445 mov r11,r2 @ key
446
447 #if __ARM_ARCH__<7
448 ldrb r0,[r12,#3] @ load input data in endian-neutral
449 ldrb r4,[r12,#2] @ manner...
450 ldrb r5,[r12,#1]
451 ldrb r6,[r12,#0]
452 orr r0,r0,r4,lsl#8
453 ldrb r1,[r12,#7]
454 orr r0,r0,r5,lsl#16
455 ldrb r4,[r12,#6]
456 orr r0,r0,r6,lsl#24
457 ldrb r5,[r12,#5]
458 ldrb r6,[r12,#4]
459 orr r1,r1,r4,lsl#8
460 ldrb r2,[r12,#11]
461 orr r1,r1,r5,lsl#16
462 ldrb r4,[r12,#10]
463 orr r1,r1,r6,lsl#24
464 ldrb r5,[r12,#9]
465 ldrb r6,[r12,#8]
466 orr r2,r2,r4,lsl#8
467 ldrb r3,[r12,#15]
468 orr r2,r2,r5,lsl#16
469 ldrb r4,[r12,#14]
470 orr r2,r2,r6,lsl#24
471 ldrb r5,[r12,#13]
472 ldrb r6,[r12,#12]
473 orr r3,r3,r4,lsl#8
474 str r0,[r11],#16
475 orr r3,r3,r5,lsl#16
476 str r1,[r11,#-12]
477 orr r3,r3,r6,lsl#24
478 str r2,[r11,#-8]
479 str r3,[r11,#-4]
480 #else
481 ldr r0,[r12,#0]
482 ldr r1,[r12,#4]
483 ldr r2,[r12,#8]
484 ldr r3,[r12,#12]
485 #ifdef __ARMEL__
486 rev r0,r0
487 rev r1,r1
488 rev r2,r2
489 rev r3,r3
490 #endif
491 str r0,[r11],#16
492 str r1,[r11,#-12]
493 str r2,[r11,#-8]
494 str r3,[r11,#-4]
495 #endif
496
497 teq lr,#128
498 bne .Lnot128
499 mov r12,#10
500 str r12,[r11,#240-16]
501 add r6,r10,#256 @ rcon
502 mov lr,#255
503
504 .L128_loop:
505 and r5,lr,r3,lsr#24
506 and r7,lr,r3,lsr#16
507 ldrb r5,[r10,r5]
508 and r8,lr,r3,lsr#8
509 ldrb r7,[r10,r7]
510 and r9,lr,r3
511 ldrb r8,[r10,r8]
512 orr r5,r5,r7,lsl#24
513 ldrb r9,[r10,r9]
514 orr r5,r5,r8,lsl#16
515 ldr r4,[r6],#4 @ rcon[i++]
516 orr r5,r5,r9,lsl#8
517 eor r5,r5,r4
518 eor r0,r0,r5 @ rk[4]=rk[0]^...
519 eor r1,r1,r0 @ rk[5]=rk[1]^rk[4]
520 str r0,[r11],#16
521 eor r2,r2,r1 @ rk[6]=rk[2]^rk[5]
522 str r1,[r11,#-12]
523 eor r3,r3,r2 @ rk[7]=rk[3]^rk[6]
524 str r2,[r11,#-8]
525 subs r12,r12,#1
526 str r3,[r11,#-4]
527 bne .L128_loop
528 sub r2,r11,#176
529 b .Ldone
530
531 .Lnot128:
532 #if __ARM_ARCH__<7
533 ldrb r8,[r12,#19]
534 ldrb r4,[r12,#18]
535 ldrb r5,[r12,#17]
536 ldrb r6,[r12,#16]
537 orr r8,r8,r4,lsl#8
538 ldrb r9,[r12,#23]
539 orr r8,r8,r5,lsl#16
540 ldrb r4,[r12,#22]
541 orr r8,r8,r6,lsl#24
542 ldrb r5,[r12,#21]
543 ldrb r6,[r12,#20]
544 orr r9,r9,r4,lsl#8
545 orr r9,r9,r5,lsl#16
546 str r8,[r11],#8
547 orr r9,r9,r6,lsl#24
548 str r9,[r11,#-4]
549 #else
550 ldr r8,[r12,#16]
551 ldr r9,[r12,#20]
552 #ifdef __ARMEL__
553 rev r8,r8
554 rev r9,r9
555 #endif
556 str r8,[r11],#8
557 str r9,[r11,#-4]
558 #endif
559
560 teq lr,#192
561 bne .Lnot192
562 mov r12,#12
563 str r12,[r11,#240-24]
564 add r6,r10,#256 @ rcon
565 mov lr,#255
566 mov r12,#8
567
568 .L192_loop:
569 and r5,lr,r9,lsr#24
570 and r7,lr,r9,lsr#16
571 ldrb r5,[r10,r5]
572 and r8,lr,r9,lsr#8
573 ldrb r7,[r10,r7]
574 and r9,lr,r9
575 ldrb r8,[r10,r8]
576 orr r5,r5,r7,lsl#24
577 ldrb r9,[r10,r9]
578 orr r5,r5,r8,lsl#16
579 ldr r4,[r6],#4 @ rcon[i++]
580 orr r5,r5,r9,lsl#8
581 eor r9,r5,r4
582 eor r0,r0,r9 @ rk[6]=rk[0]^...
583 eor r1,r1,r0 @ rk[7]=rk[1]^rk[6]
584 str r0,[r11],#24
585 eor r2,r2,r1 @ rk[8]=rk[2]^rk[7]
586 str r1,[r11,#-20]
587 eor r3,r3,r2 @ rk[9]=rk[3]^rk[8]
588 str r2,[r11,#-16]
589 subs r12,r12,#1
590 str r3,[r11,#-12]
591 #if __ARM_ARCH__>=7
592 itt eq @ Thumb2 thing, sanity check in ARM
593 #endif
594 subeq r2,r11,#216
595 beq .Ldone
596
597 ldr r7,[r11,#-32]
598 ldr r8,[r11,#-28]
599 eor r7,r7,r3 @ rk[10]=rk[4]^rk[9]
600 eor r9,r8,r7 @ rk[11]=rk[5]^rk[10]
601 str r7,[r11,#-8]
602 str r9,[r11,#-4]
603 b .L192_loop
604
605 .Lnot192:
606 #if __ARM_ARCH__<7
607 ldrb r8,[r12,#27]
608 ldrb r4,[r12,#26]
609 ldrb r5,[r12,#25]
610 ldrb r6,[r12,#24]
611 orr r8,r8,r4,lsl#8
612 ldrb r9,[r12,#31]
613 orr r8,r8,r5,lsl#16
614 ldrb r4,[r12,#30]
615 orr r8,r8,r6,lsl#24
616 ldrb r5,[r12,#29]
617 ldrb r6,[r12,#28]
618 orr r9,r9,r4,lsl#8
619 orr r9,r9,r5,lsl#16
620 str r8,[r11],#8
621 orr r9,r9,r6,lsl#24
622 str r9,[r11,#-4]
623 #else
624 ldr r8,[r12,#24]
625 ldr r9,[r12,#28]
626 #ifdef __ARMEL__
627 rev r8,r8
628 rev r9,r9
629 #endif
630 str r8,[r11],#8
631 str r9,[r11,#-4]
632 #endif
633
634 mov r12,#14
635 str r12,[r11,#240-32]
636 add r6,r10,#256 @ rcon
637 mov lr,#255
638 mov r12,#7
639
640 .L256_loop:
641 and r5,lr,r9,lsr#24
642 and r7,lr,r9,lsr#16
643 ldrb r5,[r10,r5]
644 and r8,lr,r9,lsr#8
645 ldrb r7,[r10,r7]
646 and r9,lr,r9
647 ldrb r8,[r10,r8]
648 orr r5,r5,r7,lsl#24
649 ldrb r9,[r10,r9]
650 orr r5,r5,r8,lsl#16
651 ldr r4,[r6],#4 @ rcon[i++]
652 orr r5,r5,r9,lsl#8
653 eor r9,r5,r4
654 eor r0,r0,r9 @ rk[8]=rk[0]^...
655 eor r1,r1,r0 @ rk[9]=rk[1]^rk[8]
656 str r0,[r11],#32
657 eor r2,r2,r1 @ rk[10]=rk[2]^rk[9]
658 str r1,[r11,#-28]
659 eor r3,r3,r2 @ rk[11]=rk[3]^rk[10]
660 str r2,[r11,#-24]
661 subs r12,r12,#1
662 str r3,[r11,#-20]
663 #if __ARM_ARCH__>=7
664 itt eq @ Thumb2 thing, sanity check in ARM
665 #endif
666 subeq r2,r11,#256
667 beq .Ldone
668
669 and r5,lr,r3
670 and r7,lr,r3,lsr#8
671 ldrb r5,[r10,r5]
672 and r8,lr,r3,lsr#16
673 ldrb r7,[r10,r7]
674 and r9,lr,r3,lsr#24
675 ldrb r8,[r10,r8]
676 orr r5,r5,r7,lsl#8
677 ldrb r9,[r10,r9]
678 orr r5,r5,r8,lsl#16
679 ldr r4,[r11,#-48]
680 orr r5,r5,r9,lsl#24
681
682 ldr r7,[r11,#-44]
683 ldr r8,[r11,#-40]
684 eor r4,r4,r5 @ rk[12]=rk[4]^...
685 ldr r9,[r11,#-36]
686 eor r7,r7,r4 @ rk[13]=rk[5]^rk[12]
687 str r4,[r11,#-16]
688 eor r8,r8,r7 @ rk[14]=rk[6]^rk[13]
689 str r7,[r11,#-12]
690 eor r9,r9,r8 @ rk[15]=rk[7]^rk[14]
691 str r8,[r11,#-8]
692 str r9,[r11,#-4]
693 b .L256_loop
694
695 .align 2
696 .Ldone: mov r0,#0
697 ldmia sp!,{r4-r12,lr}
698 .Labrt:
699 #if defined(__thumb2__) && __ARM_ARCH__>=7
700 .short 0x4770 @ .word 0xe12fff1e in Thumb2 encoding
701 #else
702 tst lr,#1
703 moveq pc,lr @ be binary compatible with V4, yet
704 .word 0xe12fff1e @ interoperable with Thumb ISA:- )
705 #endif
706 .size AES_set_encrypt_key,.-AES_set_encrypt_key
707
708 .global AES_set_decrypt_key
709 .type AES_set_decrypt_key,%function
710 .align 5
711 AES_set_decrypt_key:
712 str lr,[sp,#-4]! @ push lr
713 bl _armv4_AES_set_encrypt_key
714 teq r0,#0
715 ldr lr,[sp],#4 @ pop lr
716 bne .Labrt
717
718 mov r0,r2 @ AES_set_encrypt_key preserves r2,
719 mov r1,r2 @ which is AES_KEY *key
720 b _armv4_AES_set_enc2dec_key
721 .size AES_set_decrypt_key,.-AES_set_decrypt_key
722
723 @ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out)
724 .global AES_set_enc2dec_key
725 .type AES_set_enc2dec_key,%function
726 .align 5
727 AES_set_enc2dec_key:
728 _armv4_AES_set_enc2dec_key:
729 stmdb sp!,{r4-r12,lr}
730
731 ldr r12,[r0,#240]
732 mov r7,r0 @ input
733 add r8,r0,r12,lsl#4
734 mov r11,r1 @ ouput
735 add r10,r1,r12,lsl#4
736 str r12,[r1,#240]
737
738 .Linv: ldr r0,[r7],#16
739 ldr r1,[r7,#-12]
740 ldr r2,[r7,#-8]
741 ldr r3,[r7,#-4]
742 ldr r4,[r8],#-16
743 ldr r5,[r8,#16+4]
744 ldr r6,[r8,#16+8]
745 ldr r9,[r8,#16+12]
746 str r0,[r10],#-16
747 str r1,[r10,#16+4]
748 str r2,[r10,#16+8]
749 str r3,[r10,#16+12]
750 str r4,[r11],#16
751 str r5,[r11,#-12]
752 str r6,[r11,#-8]
753 str r9,[r11,#-4]
754 teq r7,r8
755 bne .Linv
756
757 ldr r0,[r7]
758 ldr r1,[r7,#4]
759 ldr r2,[r7,#8]
760 ldr r3,[r7,#12]
761 str r0,[r11]
762 str r1,[r11,#4]
763 str r2,[r11,#8]
764 str r3,[r11,#12]
765 sub r11,r11,r12,lsl#3
766 ldr r0,[r11,#16]! @ prefetch tp1
767 mov r7,#0x80
768 mov r8,#0x1b
769 orr r7,r7,#0x8000
770 orr r8,r8,#0x1b00
771 orr r7,r7,r7,lsl#16
772 orr r8,r8,r8,lsl#16
773 sub r12,r12,#1
774 mvn r9,r7
775 mov r12,r12,lsl#2 @ (rounds-1)*4
776
777 .Lmix: and r4,r0,r7
778 and r1,r0,r9
779 sub r4,r4,r4,lsr#7
780 and r4,r4,r8
781 eor r1,r4,r1,lsl#1 @ tp2
782
783 and r4,r1,r7
784 and r2,r1,r9
785 sub r4,r4,r4,lsr#7
786 and r4,r4,r8
787 eor r2,r4,r2,lsl#1 @ tp4
788
789 and r4,r2,r7
790 and r3,r2,r9
791 sub r4,r4,r4,lsr#7
792 and r4,r4,r8
793 eor r3,r4,r3,lsl#1 @ tp8
794
795 eor r4,r1,r2
796 eor r5,r0,r3 @ tp9
797 eor r4,r4,r3 @ tpe
798 eor r4,r4,r1,ror#24
799 eor r4,r4,r5,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8)
800 eor r4,r4,r2,ror#16
801 eor r4,r4,r5,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16)
802 eor r4,r4,r5,ror#8 @ ^= ROTATE(tp9,24)
803
804 ldr r0,[r11,#4] @ prefetch tp1
805 str r4,[r11],#4
806 subs r12,r12,#1
807 bne .Lmix
808
809 mov r0,#0
810 #if __ARM_ARCH__>=5
811 ldmia sp!,{r4-r12,pc}
812 #else
813 ldmia sp!,{r4-r12,lr}
814 tst lr,#1
815 moveq pc,lr @ be binary compatible with V4, yet
816 .word 0xe12fff1e @ interoperable with Thumb ISA:- )
817 #endif
818 .size AES_set_enc2dec_key,.-AES_set_enc2dec_key
819
820 .type AES_Td,%object
821 .align 5
822 AES_Td:
823 .word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96
824 .word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393
825 .word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25
826 .word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f
827 .word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1
828 .word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6
829 .word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da
830 .word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844
831 .word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd
832 .word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4
833 .word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45
834 .word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94
835 .word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7
836 .word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a
837 .word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5
838 .word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c
839 .word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1
840 .word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a
841 .word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75
842 .word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051
843 .word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46
844 .word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff
845 .word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77
846 .word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb
847 .word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000
848 .word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e
849 .word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927
850 .word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a
851 .word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e
852 .word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16
853 .word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d
854 .word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8
855 .word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd
856 .word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34
857 .word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163
858 .word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120
859 .word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d
860 .word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0
861 .word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422
862 .word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef
863 .word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36
864 .word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4
865 .word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662
866 .word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5
867 .word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3
868 .word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b
869 .word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8
870 .word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6
871 .word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6
872 .word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0
873 .word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815
874 .word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f
875 .word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df
876 .word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f
877 .word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e
878 .word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713
879 .word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89
880 .word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c
881 .word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf
882 .word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86
883 .word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f
884 .word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541
885 .word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190
886 .word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742
887 @ Td4[256]
888 .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38
889 .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
890 .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
891 .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
892 .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
893 .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
894 .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
895 .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
896 .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
897 .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
898 .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
899 .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
900 .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
901 .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
902 .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
903 .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
904 .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
905 .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
906 .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
907 .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
908 .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
909 .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
910 .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
911 .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
912 .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
913 .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
914 .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
915 .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
916 .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
917 .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
918 .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
919 .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
920 .size AES_Td,.-AES_Td
921
922 @ void AES_decrypt(const unsigned char *in, unsigned char *out,
923 @ const AES_KEY *key) {
924 .global AES_decrypt
925 .type AES_decrypt,%function
926 .align 5
927 AES_decrypt:
928 #if __ARM_ARCH__<7
929 sub r3,pc,#8 @ AES_decrypt
930 #else
931 adr r3,AES_decrypt
932 #endif
933 stmdb sp!,{r1,r4-r12,lr}
934 mov r12,r0 @ inp
935 mov r11,r2
936 sub r10,r3,#AES_decrypt-AES_Td @ Td
937 #if __ARM_ARCH__<7
938 ldrb r0,[r12,#3] @ load input data in endian-neutral
939 ldrb r4,[r12,#2] @ manner...
940 ldrb r5,[r12,#1]
941 ldrb r6,[r12,#0]
942 orr r0,r0,r4,lsl#8
943 ldrb r1,[r12,#7]
944 orr r0,r0,r5,lsl#16
945 ldrb r4,[r12,#6]
946 orr r0,r0,r6,lsl#24
947 ldrb r5,[r12,#5]
948 ldrb r6,[r12,#4]
949 orr r1,r1,r4,lsl#8
950 ldrb r2,[r12,#11]
951 orr r1,r1,r5,lsl#16
952 ldrb r4,[r12,#10]
953 orr r1,r1,r6,lsl#24
954 ldrb r5,[r12,#9]
955 ldrb r6,[r12,#8]
956 orr r2,r2,r4,lsl#8
957 ldrb r3,[r12,#15]
958 orr r2,r2,r5,lsl#16
959 ldrb r4,[r12,#14]
960 orr r2,r2,r6,lsl#24
961 ldrb r5,[r12,#13]
962 ldrb r6,[r12,#12]
963 orr r3,r3,r4,lsl#8
964 orr r3,r3,r5,lsl#16
965 orr r3,r3,r6,lsl#24
966 #else
967 ldr r0,[r12,#0]
968 ldr r1,[r12,#4]
969 ldr r2,[r12,#8]
970 ldr r3,[r12,#12]
971 #ifdef __ARMEL__
972 rev r0,r0
973 rev r1,r1
974 rev r2,r2
975 rev r3,r3
976 #endif
977 #endif
978 bl _armv4_AES_decrypt
979
980 ldr r12,[sp],#4 @ pop out
981 #if __ARM_ARCH__>=7
982 #ifdef __ARMEL__
983 rev r0,r0
984 rev r1,r1
985 rev r2,r2
986 rev r3,r3
987 #endif
988 str r0,[r12,#0]
989 str r1,[r12,#4]
990 str r2,[r12,#8]
991 str r3,[r12,#12]
992 #else
993 mov r4,r0,lsr#24 @ write output in endian-neutral
994 mov r5,r0,lsr#16 @ manner...
995 mov r6,r0,lsr#8
996 strb r4,[r12,#0]
997 strb r5,[r12,#1]
998 mov r4,r1,lsr#24
999 strb r6,[r12,#2]
1000 mov r5,r1,lsr#16
1001 strb r0,[r12,#3]
1002 mov r6,r1,lsr#8
1003 strb r4,[r12,#4]
1004 strb r5,[r12,#5]
1005 mov r4,r2,lsr#24
1006 strb r6,[r12,#6]
1007 mov r5,r2,lsr#16
1008 strb r1,[r12,#7]
1009 mov r6,r2,lsr#8
1010 strb r4,[r12,#8]
1011 strb r5,[r12,#9]
1012 mov r4,r3,lsr#24
1013 strb r6,[r12,#10]
1014 mov r5,r3,lsr#16
1015 strb r2,[r12,#11]
1016 mov r6,r3,lsr#8
1017 strb r4,[r12,#12]
1018 strb r5,[r12,#13]
1019 strb r6,[r12,#14]
1020 strb r3,[r12,#15]
1021 #endif
1022 #if __ARM_ARCH__>=5
1023 ldmia sp!,{r4-r12,pc}
1024 #else
1025 ldmia sp!,{r4-r12,lr}
1026 tst lr,#1
1027 moveq pc,lr @ be binary compatible with V4, yet
1028 .word 0xe12fff1e @ interoperable with Thumb ISA:- )
1029 #endif
1030 .size AES_decrypt,.-AES_decrypt
1031
1032 .type _armv4_AES_decrypt,%function
1033 .align 2
1034 _armv4_AES_decrypt:
1035 str lr,[sp,#-4]! @ push lr
1036 ldmia r11!,{r4-r7}
1037 eor r0,r0,r4
1038 ldr r12,[r11,#240-16]
1039 eor r1,r1,r5
1040 eor r2,r2,r6
1041 eor r3,r3,r7
1042 sub r12,r12,#1
1043 mov lr,#255
1044
1045 and r7,lr,r0,lsr#16
1046 and r8,lr,r0,lsr#8
1047 and r9,lr,r0
1048 mov r0,r0,lsr#24
1049 .Ldec_loop:
1050 ldr r4,[r10,r7,lsl#2] @ Td1[s0>>16]
1051 and r7,lr,r1 @ i0
1052 ldr r5,[r10,r8,lsl#2] @ Td2[s0>>8]
1053 and r8,lr,r1,lsr#16
1054 ldr r6,[r10,r9,lsl#2] @ Td3[s0>>0]
1055 and r9,lr,r1,lsr#8
1056 ldr r0,[r10,r0,lsl#2] @ Td0[s0>>24]
1057 mov r1,r1,lsr#24
1058
1059 ldr r7,[r10,r7,lsl#2] @ Td3[s1>>0]
1060 ldr r8,[r10,r8,lsl#2] @ Td1[s1>>16]
1061 ldr r9,[r10,r9,lsl#2] @ Td2[s1>>8]
1062 eor r0,r0,r7,ror#24
1063 ldr r1,[r10,r1,lsl#2] @ Td0[s1>>24]
1064 and r7,lr,r2,lsr#8 @ i0
1065 eor r5,r8,r5,ror#8
1066 and r8,lr,r2 @ i1
1067 eor r6,r9,r6,ror#8
1068 and r9,lr,r2,lsr#16
1069 ldr r7,[r10,r7,lsl#2] @ Td2[s2>>8]
1070 eor r1,r1,r4,ror#8
1071 ldr r8,[r10,r8,lsl#2] @ Td3[s2>>0]
1072 mov r2,r2,lsr#24
1073
1074 ldr r9,[r10,r9,lsl#2] @ Td1[s2>>16]
1075 eor r0,r0,r7,ror#16
1076 ldr r2,[r10,r2,lsl#2] @ Td0[s2>>24]
1077 and r7,lr,r3,lsr#16 @ i0
1078 eor r1,r1,r8,ror#24
1079 and r8,lr,r3,lsr#8 @ i1
1080 eor r6,r9,r6,ror#8
1081 and r9,lr,r3 @ i2
1082 ldr r7,[r10,r7,lsl#2] @ Td1[s3>>16]
1083 eor r2,r2,r5,ror#8
1084 ldr r8,[r10,r8,lsl#2] @ Td2[s3>>8]
1085 mov r3,r3,lsr#24
1086
1087 ldr r9,[r10,r9,lsl#2] @ Td3[s3>>0]
1088 eor r0,r0,r7,ror#8
1089 ldr r7,[r11],#16
1090 eor r1,r1,r8,ror#16
1091 ldr r3,[r10,r3,lsl#2] @ Td0[s3>>24]
1092 eor r2,r2,r9,ror#24
1093
1094 ldr r4,[r11,#-12]
1095 eor r0,r0,r7
1096 ldr r5,[r11,#-8]
1097 eor r3,r3,r6,ror#8
1098 ldr r6,[r11,#-4]
1099 and r7,lr,r0,lsr#16
1100 eor r1,r1,r4
1101 and r8,lr,r0,lsr#8
1102 eor r2,r2,r5
1103 and r9,lr,r0
1104 eor r3,r3,r6
1105 mov r0,r0,lsr#24
1106
1107 subs r12,r12,#1
1108 bne .Ldec_loop
1109
1110 add r10,r10,#1024
1111
1112 ldr r5,[r10,#0] @ prefetch Td4
1113 ldr r6,[r10,#32]
1114 ldr r4,[r10,#64]
1115 ldr r5,[r10,#96]
1116 ldr r6,[r10,#128]
1117 ldr r4,[r10,#160]
1118 ldr r5,[r10,#192]
1119 ldr r6,[r10,#224]
1120
1121 ldrb r0,[r10,r0] @ Td4[s0>>24]
1122 ldrb r4,[r10,r7] @ Td4[s0>>16]
1123 and r7,lr,r1 @ i0
1124 ldrb r5,[r10,r8] @ Td4[s0>>8]
1125 and r8,lr,r1,lsr#16
1126 ldrb r6,[r10,r9] @ Td4[s0>>0]
1127 and r9,lr,r1,lsr#8
1128
1129 add r1,r10,r1,lsr#24
1130 ldrb r7,[r10,r7] @ Td4[s1>>0]
1131 ldrb r1,[r1] @ Td4[s1>>24]
1132 ldrb r8,[r10,r8] @ Td4[s1>>16]
1133 eor r0,r7,r0,lsl#24
1134 ldrb r9,[r10,r9] @ Td4[s1>>8]
1135 eor r1,r4,r1,lsl#8
1136 and r7,lr,r2,lsr#8 @ i0
1137 eor r5,r5,r8,lsl#8
1138 and r8,lr,r2 @ i1
1139 ldrb r7,[r10,r7] @ Td4[s2>>8]
1140 eor r6,r6,r9,lsl#8
1141 ldrb r8,[r10,r8] @ Td4[s2>>0]
1142 and r9,lr,r2,lsr#16
1143
1144 add r2,r10,r2,lsr#24
1145 ldrb r2,[r2] @ Td4[s2>>24]
1146 eor r0,r0,r7,lsl#8
1147 ldrb r9,[r10,r9] @ Td4[s2>>16]
1148 eor r1,r8,r1,lsl#16
1149 and r7,lr,r3,lsr#16 @ i0
1150 eor r2,r5,r2,lsl#16
1151 and r8,lr,r3,lsr#8 @ i1
1152 ldrb r7,[r10,r7] @ Td4[s3>>16]
1153 eor r6,r6,r9,lsl#16
1154 ldrb r8,[r10,r8] @ Td4[s3>>8]
1155 and r9,lr,r3 @ i2
1156
1157 add r3,r10,r3,lsr#24
1158 ldrb r9,[r10,r9] @ Td4[s3>>0]
1159 ldrb r3,[r3] @ Td4[s3>>24]
1160 eor r0,r0,r7,lsl#16
1161 ldr r7,[r11,#0]
1162 eor r1,r1,r8,lsl#8
1163 ldr r4,[r11,#4]
1164 eor r2,r9,r2,lsl#8
1165 ldr r5,[r11,#8]
1166 eor r3,r6,r3,lsl#24
1167 ldr r6,[r11,#12]
1168
1169 eor r0,r0,r7
1170 eor r1,r1,r4
1171 eor r2,r2,r5
1172 eor r3,r3,r6
1173
1174 sub r10,r10,#1024
1175 ldr pc,[sp],#4 @ pop and return
1176 .size _armv4_AES_decrypt,.-_armv4_AES_decrypt
1177 .asciz "AES for ARMv4, CRYPTOGAMS by <appro@openssl.org>"
1178 .align 2
1179
1180 #endif
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