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 # ====================================================================
14 # Code uses single 1K S-box and is >2 times faster than code generated
15 # by gcc-3.4.1. This is thanks to unique feature of ARMv4 ISA, which
16 # allows to merge logical or arithmetic operation with shift or rotate
17 # in one instruction and emit combined result every cycle. The module
18 # is endian-neutral. The performance is ~42 cycles/byte for 128-bit
19 # key [on single-issue Xscale PXA250 core].
23 # AES_set_[en|de]crypt_key is added.
27 # Rescheduling for dual-issue pipeline resulted in 12% improvement on
28 # Cortex A8 core and ~25 cycles per byte processed with 128-bit key.
30 while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
31 open STDOUT,">$output";
55 .word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d
56 .word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554
57 .word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d
58 .word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a
59 .word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87
60 .word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b
61 .word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea
62 .word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b
63 .word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a
64 .word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f
65 .word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108
66 .word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f
67 .word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e
68 .word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5
69 .word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d
70 .word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f
71 .word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e
72 .word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb
73 .word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce
74 .word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497
75 .word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c
76 .word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed
77 .word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b
78 .word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a
79 .word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16
80 .word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594
81 .word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81
82 .word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3
83 .word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a
84 .word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504
85 .word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163
86 .word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d
87 .word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f
88 .word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739
89 .word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47
90 .word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395
91 .word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f
92 .word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883
93 .word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c
94 .word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76
95 .word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e
96 .word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4
97 .word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6
98 .word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b
99 .word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7
100 .word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0
101 .word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25
102 .word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818
103 .word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72
104 .word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651
105 .word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21
106 .word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85
107 .word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa
108 .word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12
109 .word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0
110 .word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9
111 .word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133
112 .word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7
113 .word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920
114 .word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a
115 .word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17
116 .word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8
117 .word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11
118 .word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a
120 .byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5
121 .byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76
122 .byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0
123 .byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0
124 .byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc
125 .byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15
126 .byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a
127 .byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75
128 .byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0
129 .byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84
130 .byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b
131 .byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf
132 .byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85
133 .byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8
134 .byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5
135 .byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2
136 .byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17
137 .byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73
138 .byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88
139 .byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb
140 .byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c
141 .byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79
142 .byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9
143 .byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08
144 .byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6
145 .byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a
146 .byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e
147 .byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e
148 .byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94
149 .byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf
150 .byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68
151 .byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
153 .word 0x01000000, 0x02000000, 0x04000000, 0x08000000
154 .word 0x10000000, 0x20000000, 0x40000000, 0x80000000
155 .word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0
156 .size AES_Te,.-AES_Te
158 @ void AES_encrypt(const unsigned char *in, unsigned char *out,
159 @ const AES_KEY *key) {
161 .type AES_encrypt,%function
164 sub r3,pc,#8 @ AES_encrypt
165 stmdb sp!,{r1,r4-r12,lr}
168 sub $tbl,r3,#AES_encrypt-AES_Te @ Te
170 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
171 ldrb $t1,[$rounds,#2] @ manner...
172 ldrb $t2,[$rounds,#1]
173 ldrb $t3,[$rounds,#0]
174 orr $s0,$s0,$t1,lsl#8
175 ldrb $s1,[$rounds,#7]
176 orr $s0,$s0,$t2,lsl#16
177 ldrb $t1,[$rounds,#6]
178 orr $s0,$s0,$t3,lsl#24
179 ldrb $t2,[$rounds,#5]
180 ldrb $t3,[$rounds,#4]
181 orr $s1,$s1,$t1,lsl#8
182 ldrb $s2,[$rounds,#11]
183 orr $s1,$s1,$t2,lsl#16
184 ldrb $t1,[$rounds,#10]
185 orr $s1,$s1,$t3,lsl#24
186 ldrb $t2,[$rounds,#9]
187 ldrb $t3,[$rounds,#8]
188 orr $s2,$s2,$t1,lsl#8
189 ldrb $s3,[$rounds,#15]
190 orr $s2,$s2,$t2,lsl#16
191 ldrb $t1,[$rounds,#14]
192 orr $s2,$s2,$t3,lsl#24
193 ldrb $t2,[$rounds,#13]
194 ldrb $t3,[$rounds,#12]
195 orr $s3,$s3,$t1,lsl#8
196 orr $s3,$s3,$t2,lsl#16
197 orr $s3,$s3,$t3,lsl#24
199 bl _armv4_AES_encrypt
201 ldr $rounds,[sp],#4 @ pop out
202 mov $t1,$s0,lsr#24 @ write output in endian-neutral
203 mov $t2,$s0,lsr#16 @ manner...
205 strb $t1,[$rounds,#0]
206 strb $t2,[$rounds,#1]
208 strb $t3,[$rounds,#2]
210 strb $s0,[$rounds,#3]
212 strb $t1,[$rounds,#4]
213 strb $t2,[$rounds,#5]
215 strb $t3,[$rounds,#6]
217 strb $s1,[$rounds,#7]
219 strb $t1,[$rounds,#8]
220 strb $t2,[$rounds,#9]
222 strb $t3,[$rounds,#10]
224 strb $s2,[$rounds,#11]
226 strb $t1,[$rounds,#12]
227 strb $t2,[$rounds,#13]
228 strb $t3,[$rounds,#14]
229 strb $s3,[$rounds,#15]
231 ldmia sp!,{r4-r12,lr}
233 moveq pc,lr @ be binary compatible with V4, yet
234 bx lr @ interoperable with Thumb ISA:-)
235 .size AES_encrypt,.-AES_encrypt
237 .type _armv4_AES_encrypt,%function
240 str lr,[sp,#-4]! @ push lr
241 ldmia $key!,{$t1-$i1}
243 ldr $rounds,[$key,#240-16]
247 sub $rounds,$rounds,#1
252 and $i3,lr,$s0,lsr#16
255 ldr $t1,[$tbl,$i1,lsl#2] @ Te3[s0>>0]
256 and $i1,lr,$s1,lsr#16 @ i0
257 ldr $t2,[$tbl,$i2,lsl#2] @ Te2[s0>>8]
259 ldr $t3,[$tbl,$i3,lsl#2] @ Te1[s0>>16]
261 ldr $s0,[$tbl,$s0,lsl#2] @ Te0[s0>>24]
264 ldr $i1,[$tbl,$i1,lsl#2] @ Te1[s1>>16]
265 ldr $i2,[$tbl,$i2,lsl#2] @ Te3[s1>>0]
266 ldr $i3,[$tbl,$i3,lsl#2] @ Te2[s1>>8]
267 eor $s0,$s0,$i1,ror#8
268 ldr $s1,[$tbl,$s1,lsl#2] @ Te0[s1>>24]
269 and $i1,lr,$s2,lsr#8 @ i0
270 eor $t2,$t2,$i2,ror#8
271 and $i2,lr,$s2,lsr#16 @ i1
272 eor $t3,$t3,$i3,ror#8
274 eor $s1,$s1,$t1,ror#24
275 ldr $i1,[$tbl,$i1,lsl#2] @ Te2[s2>>8]
278 ldr $i2,[$tbl,$i2,lsl#2] @ Te1[s2>>16]
279 ldr $i3,[$tbl,$i3,lsl#2] @ Te3[s2>>0]
280 eor $s0,$s0,$i1,ror#16
281 ldr $s2,[$tbl,$s2,lsl#2] @ Te0[s2>>24]
283 eor $s1,$s1,$i2,ror#8
284 and $i2,lr,$s3,lsr#8 @ i1
285 eor $t3,$t3,$i3,ror#16
286 and $i3,lr,$s3,lsr#16 @ i2
287 eor $s2,$s2,$t2,ror#16
288 ldr $i1,[$tbl,$i1,lsl#2] @ Te3[s3>>0]
291 ldr $i2,[$tbl,$i2,lsl#2] @ Te2[s3>>8]
292 ldr $i3,[$tbl,$i3,lsl#2] @ Te1[s3>>16]
293 eor $s0,$s0,$i1,ror#24
294 ldr $s3,[$tbl,$s3,lsl#2] @ Te0[s3>>24]
295 eor $s1,$s1,$i2,ror#16
297 eor $s2,$s2,$i3,ror#8
299 eor $s3,$s3,$t3,ror#8
308 and $i3,lr,$s0,lsr#16
312 subs $rounds,$rounds,#1
317 ldrb $t1,[$tbl,$i1,lsl#2] @ Te4[s0>>0]
318 and $i1,lr,$s1,lsr#16 @ i0
319 ldrb $t2,[$tbl,$i2,lsl#2] @ Te4[s0>>8]
321 ldrb $t3,[$tbl,$i3,lsl#2] @ Te4[s0>>16]
323 ldrb $s0,[$tbl,$s0,lsl#2] @ Te4[s0>>24]
326 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s1>>16]
327 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s1>>0]
328 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s1>>8]
329 eor $s0,$i1,$s0,lsl#8
330 ldrb $s1,[$tbl,$s1,lsl#2] @ Te4[s1>>24]
331 and $i1,lr,$s2,lsr#8 @ i0
332 eor $t2,$i2,$t2,lsl#8
333 and $i2,lr,$s2,lsr#16 @ i1
334 eor $t3,$i3,$t3,lsl#8
336 eor $s1,$t1,$s1,lsl#24
337 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s2>>8]
340 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s2>>16]
341 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s2>>0]
342 eor $s0,$i1,$s0,lsl#8
343 ldrb $s2,[$tbl,$s2,lsl#2] @ Te4[s2>>24]
345 eor $s1,$s1,$i2,lsl#16
346 and $i2,lr,$s3,lsr#8 @ i1
347 eor $t3,$i3,$t3,lsl#8
348 and $i3,lr,$s3,lsr#16 @ i2
349 eor $s2,$t2,$s2,lsl#24
350 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s3>>0]
353 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s3>>8]
354 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s3>>16]
355 eor $s0,$i1,$s0,lsl#8
356 ldrb $s3,[$tbl,$s3,lsl#2] @ Te4[s3>>24]
358 eor $s1,$s1,$i2,lsl#8
360 eor $s2,$s2,$i3,lsl#16
362 eor $s3,$t3,$s3,lsl#24
371 ldr pc,[sp],#4 @ pop and return
372 .size _armv4_AES_encrypt,.-_armv4_AES_encrypt
374 .global AES_set_encrypt_key
375 .type AES_set_encrypt_key,%function
378 sub r3,pc,#8 @ AES_set_encrypt_key
394 .Lok: stmdb sp!,{r4-r12,lr}
395 sub $tbl,r3,#AES_set_encrypt_key-AES_Te-1024 @ Te4
401 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
402 ldrb $t1,[$rounds,#2] @ manner...
403 ldrb $t2,[$rounds,#1]
404 ldrb $t3,[$rounds,#0]
405 orr $s0,$s0,$t1,lsl#8
406 ldrb $s1,[$rounds,#7]
407 orr $s0,$s0,$t2,lsl#16
408 ldrb $t1,[$rounds,#6]
409 orr $s0,$s0,$t3,lsl#24
410 ldrb $t2,[$rounds,#5]
411 ldrb $t3,[$rounds,#4]
412 orr $s1,$s1,$t1,lsl#8
413 ldrb $s2,[$rounds,#11]
414 orr $s1,$s1,$t2,lsl#16
415 ldrb $t1,[$rounds,#10]
416 orr $s1,$s1,$t3,lsl#24
417 ldrb $t2,[$rounds,#9]
418 ldrb $t3,[$rounds,#8]
419 orr $s2,$s2,$t1,lsl#8
420 ldrb $s3,[$rounds,#15]
421 orr $s2,$s2,$t2,lsl#16
422 ldrb $t1,[$rounds,#14]
423 orr $s2,$s2,$t3,lsl#24
424 ldrb $t2,[$rounds,#13]
425 ldrb $t3,[$rounds,#12]
426 orr $s3,$s3,$t1,lsl#8
428 orr $s3,$s3,$t2,lsl#16
430 orr $s3,$s3,$t3,lsl#24
437 str $rounds,[$key,#240-16]
438 add $t3,$tbl,#256 @ rcon
442 and $t2,lr,$s3,lsr#24
443 and $i1,lr,$s3,lsr#16
449 orr $t2,$t2,$i1,lsl#24
451 orr $t2,$t2,$i2,lsl#16
452 ldr $t1,[$t3],#4 @ rcon[i++]
453 orr $t2,$t2,$i3,lsl#8
455 eor $s0,$s0,$t2 @ rk[4]=rk[0]^...
456 eor $s1,$s1,$s0 @ rk[5]=rk[1]^rk[4]
458 eor $s2,$s2,$s1 @ rk[6]=rk[2]^rk[5]
460 eor $s3,$s3,$s2 @ rk[7]=rk[3]^rk[6]
462 subs $rounds,$rounds,#1
469 ldrb $i2,[$rounds,#19]
470 ldrb $t1,[$rounds,#18]
471 ldrb $t2,[$rounds,#17]
472 ldrb $t3,[$rounds,#16]
473 orr $i2,$i2,$t1,lsl#8
474 ldrb $i3,[$rounds,#23]
475 orr $i2,$i2,$t2,lsl#16
476 ldrb $t1,[$rounds,#22]
477 orr $i2,$i2,$t3,lsl#24
478 ldrb $t2,[$rounds,#21]
479 ldrb $t3,[$rounds,#20]
480 orr $i3,$i3,$t1,lsl#8
481 orr $i3,$i3,$t2,lsl#16
483 orr $i3,$i3,$t3,lsl#24
489 str $rounds,[$key,#240-24]
490 add $t3,$tbl,#256 @ rcon
495 and $t2,lr,$i3,lsr#24
496 and $i1,lr,$i3,lsr#16
502 orr $t2,$t2,$i1,lsl#24
504 orr $t2,$t2,$i2,lsl#16
505 ldr $t1,[$t3],#4 @ rcon[i++]
506 orr $t2,$t2,$i3,lsl#8
508 eor $s0,$s0,$i3 @ rk[6]=rk[0]^...
509 eor $s1,$s1,$s0 @ rk[7]=rk[1]^rk[6]
511 eor $s2,$s2,$s1 @ rk[8]=rk[2]^rk[7]
513 eor $s3,$s3,$s2 @ rk[9]=rk[3]^rk[8]
515 subs $rounds,$rounds,#1
522 eor $i1,$i1,$s3 @ rk[10]=rk[4]^rk[9]
523 eor $i3,$i2,$i1 @ rk[11]=rk[5]^rk[10]
529 ldrb $i2,[$rounds,#27]
530 ldrb $t1,[$rounds,#26]
531 ldrb $t2,[$rounds,#25]
532 ldrb $t3,[$rounds,#24]
533 orr $i2,$i2,$t1,lsl#8
534 ldrb $i3,[$rounds,#31]
535 orr $i2,$i2,$t2,lsl#16
536 ldrb $t1,[$rounds,#30]
537 orr $i2,$i2,$t3,lsl#24
538 ldrb $t2,[$rounds,#29]
539 ldrb $t3,[$rounds,#28]
540 orr $i3,$i3,$t1,lsl#8
541 orr $i3,$i3,$t2,lsl#16
543 orr $i3,$i3,$t3,lsl#24
547 str $rounds,[$key,#240-32]
548 add $t3,$tbl,#256 @ rcon
553 and $t2,lr,$i3,lsr#24
554 and $i1,lr,$i3,lsr#16
560 orr $t2,$t2,$i1,lsl#24
562 orr $t2,$t2,$i2,lsl#16
563 ldr $t1,[$t3],#4 @ rcon[i++]
564 orr $t2,$t2,$i3,lsl#8
566 eor $s0,$s0,$i3 @ rk[8]=rk[0]^...
567 eor $s1,$s1,$s0 @ rk[9]=rk[1]^rk[8]
569 eor $s2,$s2,$s1 @ rk[10]=rk[2]^rk[9]
571 eor $s3,$s3,$s2 @ rk[11]=rk[3]^rk[10]
573 subs $rounds,$rounds,#1
581 and $i2,lr,$s3,lsr#16
583 and $i3,lr,$s3,lsr#24
585 orr $t2,$t2,$i1,lsl#8
587 orr $t2,$t2,$i2,lsl#16
589 orr $t2,$t2,$i3,lsl#24
593 eor $t1,$t1,$t2 @ rk[12]=rk[4]^...
595 eor $i1,$i1,$t1 @ rk[13]=rk[5]^rk[12]
597 eor $i2,$i2,$i1 @ rk[14]=rk[6]^rk[13]
599 eor $i3,$i3,$i2 @ rk[15]=rk[7]^rk[14]
605 ldmia sp!,{r4-r12,lr}
607 moveq pc,lr @ be binary compatible with V4, yet
608 bx lr @ interoperable with Thumb ISA:-)
609 .size AES_set_encrypt_key,.-AES_set_encrypt_key
611 .global AES_set_decrypt_key
612 .type AES_set_decrypt_key,%function
615 str lr,[sp,#-4]! @ push lr
616 bl AES_set_encrypt_key
618 ldrne lr,[sp],#4 @ pop lr
623 ldr $rounds,[r2,#240] @ AES_set_encrypt_key preserves r2,
624 mov $key,r2 @ which is AES_KEY *key
626 add $i2,r2,$rounds,lsl#4
651 ldr $s0,[$key,#16]! @ prefetch tp1
654 orr $mask80,$mask80,#0x8000
655 orr $mask1b,$mask1b,#0x1b00
656 orr $mask80,$mask80,$mask80,lsl#16
657 orr $mask1b,$mask1b,$mask1b,lsl#16
658 sub $rounds,$rounds,#1
660 mov $rounds,$rounds,lsl#2 @ (rounds-1)*4
662 .Lmix: and $t1,$s0,$mask80
664 sub $t1,$t1,$t1,lsr#7
666 eor $s1,$t1,$s1,lsl#1 @ tp2
670 sub $t1,$t1,$t1,lsr#7
672 eor $s2,$t1,$s2,lsl#1 @ tp4
676 sub $t1,$t1,$t1,lsr#7
678 eor $s3,$t1,$s3,lsl#1 @ tp8
681 eor $t2,$s0,$s3 @ tp9
682 eor $t1,$t1,$s3 @ tpe
683 eor $t1,$t1,$s1,ror#24
684 eor $t1,$t1,$t2,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8)
685 eor $t1,$t1,$s2,ror#16
686 eor $t1,$t1,$t2,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16)
687 eor $t1,$t1,$t2,ror#8 @ ^= ROTATE(tp9,24)
689 ldr $s0,[$key,#4] @ prefetch tp1
691 subs $rounds,$rounds,#1
695 ldmia sp!,{r4-r12,lr}
697 moveq pc,lr @ be binary compatible with V4, yet
698 bx lr @ interoperable with Thumb ISA:-)
699 .size AES_set_decrypt_key,.-AES_set_decrypt_key
704 .word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96
705 .word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393
706 .word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25
707 .word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f
708 .word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1
709 .word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6
710 .word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da
711 .word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844
712 .word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd
713 .word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4
714 .word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45
715 .word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94
716 .word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7
717 .word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a
718 .word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5
719 .word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c
720 .word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1
721 .word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a
722 .word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75
723 .word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051
724 .word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46
725 .word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff
726 .word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77
727 .word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb
728 .word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000
729 .word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e
730 .word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927
731 .word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a
732 .word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e
733 .word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16
734 .word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d
735 .word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8
736 .word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd
737 .word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34
738 .word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163
739 .word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120
740 .word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d
741 .word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0
742 .word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422
743 .word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef
744 .word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36
745 .word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4
746 .word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662
747 .word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5
748 .word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3
749 .word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b
750 .word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8
751 .word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6
752 .word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6
753 .word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0
754 .word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815
755 .word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f
756 .word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df
757 .word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f
758 .word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e
759 .word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713
760 .word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89
761 .word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c
762 .word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf
763 .word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86
764 .word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f
765 .word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541
766 .word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190
767 .word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742
769 .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38
770 .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
771 .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
772 .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
773 .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
774 .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
775 .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
776 .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
777 .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
778 .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
779 .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
780 .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
781 .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
782 .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
783 .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
784 .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
785 .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
786 .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
787 .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
788 .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
789 .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
790 .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
791 .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
792 .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
793 .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
794 .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
795 .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
796 .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
797 .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
798 .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
799 .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
800 .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
801 .size AES_Td,.-AES_Td
803 @ void AES_decrypt(const unsigned char *in, unsigned char *out,
804 @ const AES_KEY *key) {
806 .type AES_decrypt,%function
809 sub r3,pc,#8 @ AES_decrypt
810 stmdb sp!,{r1,r4-r12,lr}
813 sub $tbl,r3,#AES_decrypt-AES_Td @ Td
815 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
816 ldrb $t1,[$rounds,#2] @ manner...
817 ldrb $t2,[$rounds,#1]
818 ldrb $t3,[$rounds,#0]
819 orr $s0,$s0,$t1,lsl#8
820 ldrb $s1,[$rounds,#7]
821 orr $s0,$s0,$t2,lsl#16
822 ldrb $t1,[$rounds,#6]
823 orr $s0,$s0,$t3,lsl#24
824 ldrb $t2,[$rounds,#5]
825 ldrb $t3,[$rounds,#4]
826 orr $s1,$s1,$t1,lsl#8
827 ldrb $s2,[$rounds,#11]
828 orr $s1,$s1,$t2,lsl#16
829 ldrb $t1,[$rounds,#10]
830 orr $s1,$s1,$t3,lsl#24
831 ldrb $t2,[$rounds,#9]
832 ldrb $t3,[$rounds,#8]
833 orr $s2,$s2,$t1,lsl#8
834 ldrb $s3,[$rounds,#15]
835 orr $s2,$s2,$t2,lsl#16
836 ldrb $t1,[$rounds,#14]
837 orr $s2,$s2,$t3,lsl#24
838 ldrb $t2,[$rounds,#13]
839 ldrb $t3,[$rounds,#12]
840 orr $s3,$s3,$t1,lsl#8
841 orr $s3,$s3,$t2,lsl#16
842 orr $s3,$s3,$t3,lsl#24
844 bl _armv4_AES_decrypt
846 ldr $rounds,[sp],#4 @ pop out
847 mov $t1,$s0,lsr#24 @ write output in endian-neutral
848 mov $t2,$s0,lsr#16 @ manner...
850 strb $t1,[$rounds,#0]
851 strb $t2,[$rounds,#1]
853 strb $t3,[$rounds,#2]
855 strb $s0,[$rounds,#3]
857 strb $t1,[$rounds,#4]
858 strb $t2,[$rounds,#5]
860 strb $t3,[$rounds,#6]
862 strb $s1,[$rounds,#7]
864 strb $t1,[$rounds,#8]
865 strb $t2,[$rounds,#9]
867 strb $t3,[$rounds,#10]
869 strb $s2,[$rounds,#11]
871 strb $t1,[$rounds,#12]
872 strb $t2,[$rounds,#13]
873 strb $t3,[$rounds,#14]
874 strb $s3,[$rounds,#15]
876 ldmia sp!,{r4-r12,lr}
878 moveq pc,lr @ be binary compatible with V4, yet
879 bx lr @ interoperable with Thumb ISA:-)
880 .size AES_decrypt,.-AES_decrypt
882 .type _armv4_AES_decrypt,%function
885 str lr,[sp,#-4]! @ push lr
886 ldmia $key!,{$t1-$i1}
888 ldr $rounds,[$key,#240-16]
892 sub $rounds,$rounds,#1
895 and $i1,lr,$s0,lsr#16
900 ldr $t1,[$tbl,$i1,lsl#2] @ Td1[s0>>16]
902 ldr $t2,[$tbl,$i2,lsl#2] @ Td2[s0>>8]
903 and $i2,lr,$s1,lsr#16
904 ldr $t3,[$tbl,$i3,lsl#2] @ Td3[s0>>0]
906 ldr $s0,[$tbl,$s0,lsl#2] @ Td0[s0>>24]
909 ldr $i1,[$tbl,$i1,lsl#2] @ Td3[s1>>0]
910 ldr $i2,[$tbl,$i2,lsl#2] @ Td1[s1>>16]
911 ldr $i3,[$tbl,$i3,lsl#2] @ Td2[s1>>8]
912 eor $s0,$s0,$i1,ror#24
913 ldr $s1,[$tbl,$s1,lsl#2] @ Td0[s1>>24]
914 and $i1,lr,$s2,lsr#8 @ i0
915 eor $t2,$i2,$t2,ror#8
917 eor $t3,$i3,$t3,ror#8
918 and $i3,lr,$s2,lsr#16
919 eor $s1,$s1,$t1,ror#8
920 ldr $i1,[$tbl,$i1,lsl#2] @ Td2[s2>>8]
923 ldr $i2,[$tbl,$i2,lsl#2] @ Td3[s2>>0]
924 ldr $i3,[$tbl,$i3,lsl#2] @ Td1[s2>>16]
925 eor $s0,$s0,$i1,ror#16
926 ldr $s2,[$tbl,$s2,lsl#2] @ Td0[s2>>24]
927 and $i1,lr,$s3,lsr#16 @ i0
928 eor $s1,$s1,$i2,ror#24
929 and $i2,lr,$s3,lsr#8 @ i1
930 eor $t3,$i3,$t3,ror#8
932 eor $s2,$s2,$t2,ror#8
933 ldr $i1,[$tbl,$i1,lsl#2] @ Td1[s3>>16]
936 ldr $i2,[$tbl,$i2,lsl#2] @ Td2[s3>>8]
937 ldr $i3,[$tbl,$i3,lsl#2] @ Td3[s3>>0]
938 eor $s0,$s0,$i1,ror#8
939 ldr $s3,[$tbl,$s3,lsl#2] @ Td0[s3>>24]
940 eor $s1,$s1,$i2,ror#16
941 eor $s2,$s2,$i3,ror#24
943 eor $s3,$s3,$t3,ror#8
949 and $i1,lr,$s0,lsr#16
957 subs $rounds,$rounds,#1
962 ldr $t2,[$tbl,#0] @ prefetch Td4
971 ldrb $s0,[$tbl,$s0] @ Td4[s0>>24]
972 ldrb $t1,[$tbl,$i1] @ Td4[s0>>16]
974 ldrb $t2,[$tbl,$i2] @ Td4[s0>>8]
975 and $i2,lr,$s1,lsr#16
976 ldrb $t3,[$tbl,$i3] @ Td4[s0>>0]
979 ldrb $i1,[$tbl,$i1] @ Td4[s1>>0]
980 ldrb $s1,[$tbl,$s1,lsr#24] @ Td4[s1>>24]
981 ldrb $i2,[$tbl,$i2] @ Td4[s1>>16]
982 eor $s0,$i1,$s0,lsl#24
983 ldrb $i3,[$tbl,$i3] @ Td4[s1>>8]
984 eor $s1,$t1,$s1,lsl#8
985 and $i1,lr,$s2,lsr#8 @ i0
986 eor $t2,$t2,$i2,lsl#8
988 eor $t3,$t3,$i3,lsl#8
989 ldrb $i1,[$tbl,$i1] @ Td4[s2>>8]
990 and $i3,lr,$s2,lsr#16
992 ldrb $i2,[$tbl,$i2] @ Td4[s2>>0]
993 ldrb $s2,[$tbl,$s2,lsr#24] @ Td4[s2>>24]
994 eor $s0,$s0,$i1,lsl#8
995 ldrb $i3,[$tbl,$i3] @ Td4[s2>>16]
996 eor $s1,$i2,$s1,lsl#16
997 and $i1,lr,$s3,lsr#16 @ i0
998 eor $s2,$t2,$s2,lsl#16
999 and $i2,lr,$s3,lsr#8 @ i1
1000 eor $t3,$t3,$i3,lsl#16
1001 ldrb $i1,[$tbl,$i1] @ Td4[s3>>16]
1004 ldrb $i2,[$tbl,$i2] @ Td4[s3>>8]
1005 ldrb $i3,[$tbl,$i3] @ Td4[s3>>0]
1006 ldrb $s3,[$tbl,$s3,lsr#24] @ Td4[s3>>24]
1007 eor $s0,$s0,$i1,lsl#16
1009 eor $s1,$s1,$i2,lsl#8
1011 eor $s2,$i3,$s2,lsl#8
1013 eor $s3,$t3,$s3,lsl#24
1022 ldr pc,[sp],#4 @ pop and return
1023 .size _armv4_AES_decrypt,.-_armv4_AES_decrypt
1024 .asciz "AES for ARMv4, CRYPTOGAMS by <appro\@openssl.org>"
1028 $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
1030 close STDOUT; # enforce flush