13#include <botan/internal/aes.h>
15#include <botan/internal/ct_utils.h>
16#include <botan/internal/simd_32.h>
18#if defined(BOTAN_SIMD_USE_SSE2)
19 #include <tmmintrin.h>
26inline SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) shuffle(SIMD_4x32 a, SIMD_4x32 b) {
27#if defined(BOTAN_SIMD_USE_SSE2)
28 return SIMD_4x32(_mm_shuffle_epi8(a.raw(), b.raw()));
29#elif defined(BOTAN_SIMD_USE_NEON)
30 const uint8x16_t tbl = vreinterpretq_u8_u32(a.raw());
31 const uint8x16_t idx = vreinterpretq_u8_u32(b.raw());
33 #if defined(BOTAN_TARGET_ARCH_IS_ARM32)
34 const uint8x8x2_t tbl2 = {vget_low_u8(tbl), vget_high_u8(tbl)};
37 vreinterpretq_u32_u8(vcombine_u8(vtbl2_u8(tbl2, vget_low_u8(idx)), vtbl2_u8(tbl2, vget_high_u8(idx)))));
40 return SIMD_4x32(vreinterpretq_u32_u8(vqtbl1q_u8(tbl, idx)));
43#elif defined(BOTAN_SIMD_USE_ALTIVEC)
45 const auto zero = vec_splat_s8(0x00);
46 const auto mask = vec_cmplt(
reinterpret_cast<__vector
signed char>(b.raw()), zero);
47 const auto r = vec_perm(
reinterpret_cast<__vector
signed char>(a.raw()),
48 reinterpret_cast<__vector
signed char>(a.raw()),
49 reinterpret_cast<__vector
unsigned char>(b.raw()));
50 return SIMD_4x32(
reinterpret_cast<__vector
unsigned int>(vec_sel(r, zero, mask)));
53 #error "No shuffle implementation available"
57inline SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) alignr8(SIMD_4x32 a, SIMD_4x32 b) {
58#if defined(BOTAN_SIMD_USE_SSE2)
59 return SIMD_4x32(_mm_alignr_epi8(a.raw(), b.raw(), 8));
60#elif defined(BOTAN_SIMD_USE_NEON)
61 return SIMD_4x32(vextq_u32(b.raw(), a.raw(), 2));
62#elif defined(BOTAN_SIMD_USE_ALTIVEC)
63 const __vector
unsigned char mask = {8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23};
64 return SIMD_4x32(vec_perm(b.raw(), a.raw(), mask));
66 #error "No alignr8 implementation available"
70const SIMD_4x32 k_ipt1 = SIMD_4x32(0x5A2A7000, 0xC2B2E898, 0x52227808, 0xCABAE090);
71const SIMD_4x32 k_ipt2 = SIMD_4x32(0x317C4D00, 0x4C01307D, 0xB0FDCC81, 0xCD80B1FC);
73const SIMD_4x32 k_inv1 = SIMD_4x32(0x0D080180, 0x0E05060F, 0x0A0B0C02, 0x04070309);
74const SIMD_4x32 k_inv2 = SIMD_4x32(0x0F0B0780, 0x01040A06, 0x02050809, 0x030D0E0C);
76const SIMD_4x32 sb1u = SIMD_4x32(0xCB503E00, 0xB19BE18F, 0x142AF544, 0xA5DF7A6E);
77const SIMD_4x32 sb1t = SIMD_4x32(0xFAE22300, 0x3618D415, 0x0D2ED9EF, 0x3BF7CCC1);
78const SIMD_4x32 sbou = SIMD_4x32(0x6FBDC700, 0xD0D26D17, 0xC502A878, 0x15AABF7A);
79const SIMD_4x32 sbot = SIMD_4x32(0x5FBB6A00, 0xCFE474A5, 0x412B35FA, 0x8E1E90D1);
81const SIMD_4x32 sboud = SIMD_4x32(0x7EF94000, 0x1387EA53, 0xD4943E2D, 0xC7AA6DB9);
82const SIMD_4x32 sbotd = SIMD_4x32(0x93441D00, 0x12D7560F, 0xD8C58E9C, 0xCA4B8159);
84const SIMD_4x32 mc_forward[4] = {SIMD_4x32(0x00030201, 0x04070605, 0x080B0A09, 0x0C0F0E0D),
85 SIMD_4x32(0x04070605, 0x080B0A09, 0x0C0F0E0D, 0x00030201),
86 SIMD_4x32(0x080B0A09, 0x0C0F0E0D, 0x00030201, 0x04070605),
87 SIMD_4x32(0x0C0F0E0D, 0x00030201, 0x04070605, 0x080B0A09)};
89const SIMD_4x32 vperm_sr[4] = {
90 SIMD_4x32(0x03020100, 0x07060504, 0x0B0A0908, 0x0F0E0D0C),
91 SIMD_4x32(0x0F0A0500, 0x030E0904, 0x07020D08, 0x0B06010C),
92 SIMD_4x32(0x0B020900, 0x0F060D04, 0x030A0108, 0x070E050C),
93 SIMD_4x32(0x070A0D00, 0x0B0E0104, 0x0F020508, 0x0306090C),
96const SIMD_4x32 rcon[10] = {
97 SIMD_4x32(0x00000070, 0x00000000, 0x00000000, 0x00000000),
98 SIMD_4x32(0x0000002A, 0x00000000, 0x00000000, 0x00000000),
99 SIMD_4x32(0x00000098, 0x00000000, 0x00000000, 0x00000000),
100 SIMD_4x32(0x00000008, 0x00000000, 0x00000000, 0x00000000),
101 SIMD_4x32(0x0000004D, 0x00000000, 0x00000000, 0x00000000),
102 SIMD_4x32(0x0000007C, 0x00000000, 0x00000000, 0x00000000),
103 SIMD_4x32(0x0000007D, 0x00000000, 0x00000000, 0x00000000),
104 SIMD_4x32(0x00000081, 0x00000000, 0x00000000, 0x00000000),
105 SIMD_4x32(0x0000001F, 0x00000000, 0x00000000, 0x00000000),
106 SIMD_4x32(0x00000083, 0x00000000, 0x00000000, 0x00000000),
109const SIMD_4x32 sb2u = SIMD_4x32(0x0B712400, 0xE27A93C6, 0xBC982FCD, 0x5EB7E955);
110const SIMD_4x32 sb2t = SIMD_4x32(0x0AE12900, 0x69EB8840, 0xAB82234A, 0xC2A163C8);
112const SIMD_4x32 k_dipt1 = SIMD_4x32(0x0B545F00, 0x0F505B04, 0x114E451A, 0x154A411E);
113const SIMD_4x32 k_dipt2 = SIMD_4x32(0x60056500, 0x86E383E6, 0xF491F194, 0x12771772);
115const SIMD_4x32 sb9u = SIMD_4x32(0x9A86D600, 0x851C0353, 0x4F994CC9, 0xCAD51F50);
116const SIMD_4x32 sb9t = SIMD_4x32(0xECD74900, 0xC03B1789, 0xB2FBA565, 0x725E2C9E);
118const SIMD_4x32 sbeu = SIMD_4x32(0x26D4D000, 0x46F29296, 0x64B4F6B0, 0x22426004);
119const SIMD_4x32 sbet = SIMD_4x32(0xFFAAC100, 0x0C55A6CD, 0x98593E32, 0x9467F36B);
121const SIMD_4x32 sbdu = SIMD_4x32(0xE6B1A200, 0x7D57CCDF, 0x882A4439, 0xF56E9B13);
122const SIMD_4x32 sbdt = SIMD_4x32(0x24C6CB00, 0x3CE2FAF7, 0x15DEEFD3, 0x2931180D);
124const SIMD_4x32 sbbu = SIMD_4x32(0x96B44200, 0xD0226492, 0xB0F2D404, 0x602646F6);
125const SIMD_4x32 sbbt = SIMD_4x32(0xCD596700, 0xC19498A6, 0x3255AA6B, 0xF3FF0C3E);
127const SIMD_4x32 mcx[4] = {
128 SIMD_4x32(0x0C0F0E0D, 0x00030201, 0x04070605, 0x080B0A09),
129 SIMD_4x32(0x080B0A09, 0x0C0F0E0D, 0x00030201, 0x04070605),
130 SIMD_4x32(0x04070605, 0x080B0A09, 0x0C0F0E0D, 0x00030201),
131 SIMD_4x32(0x00030201, 0x04070605, 0x080B0A09, 0x0C0F0E0D),
134const SIMD_4x32 mc_backward[4] = {
135 SIMD_4x32(0x02010003, 0x06050407, 0x0A09080B, 0x0E0D0C0F),
136 SIMD_4x32(0x0E0D0C0F, 0x02010003, 0x06050407, 0x0A09080B),
137 SIMD_4x32(0x0A09080B, 0x0E0D0C0F, 0x02010003, 0x06050407),
138 SIMD_4x32(0x06050407, 0x0A09080B, 0x0E0D0C0F, 0x02010003),
143inline SIMD_4x32 low_nibs(SIMD_4x32 x) {
144 return lo_nibs_mask & x;
147inline SIMD_4x32 high_nibs(SIMD_4x32 x) {
148 return (x.shr<4>() & lo_nibs_mask);
151inline SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_enc_first_round(SIMD_4x32 B, SIMD_4x32 K) {
152 return shuffle(k_ipt1, low_nibs(B)) ^ shuffle(k_ipt2, high_nibs(B)) ^
K;
155inline SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_enc_round(SIMD_4x32 B, SIMD_4x32 K,
size_t r) {
156 const SIMD_4x32 Bh = high_nibs(B);
157 SIMD_4x32 Bl = low_nibs(B);
158 const SIMD_4x32 t2 = shuffle(k_inv2, Bl);
161 const SIMD_4x32 t5 = Bl ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, Bh));
162 const SIMD_4x32 t6 = Bh ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, Bl));
164 const SIMD_4x32 t7 = shuffle(sb1t, t6) ^ shuffle(sb1u, t5) ^
K;
165 const SIMD_4x32 t8 = shuffle(sb2t, t6) ^ shuffle(sb2u, t5) ^ shuffle(t7, mc_forward[r % 4]);
167 return shuffle(t8, mc_forward[r % 4]) ^ shuffle(t7, mc_backward[r % 4]) ^ t8;
170inline SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_enc_last_round(SIMD_4x32 B, SIMD_4x32 K,
size_t r) {
171 const SIMD_4x32 Bh = high_nibs(B);
172 SIMD_4x32 Bl = low_nibs(B);
173 const SIMD_4x32 t2 = shuffle(k_inv2, Bl);
176 const SIMD_4x32 t5 = Bl ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, Bh));
177 const SIMD_4x32 t6 = Bh ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, Bl));
179 return shuffle(shuffle(sbou, t5) ^ shuffle(sbot, t6) ^ K, vperm_sr[r % 4]);
182inline SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_dec_first_round(SIMD_4x32 B, SIMD_4x32 K) {
183 return shuffle(k_dipt1, low_nibs(B)) ^ shuffle(k_dipt2, high_nibs(B)) ^
K;
186inline SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_dec_round(SIMD_4x32 B, SIMD_4x32 K,
size_t r) {
187 const SIMD_4x32 Bh = high_nibs(B);
189 const SIMD_4x32 t2 = shuffle(k_inv2, B);
193 const SIMD_4x32 t5 = B ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, Bh));
194 const SIMD_4x32 t6 = Bh ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, B));
196 const SIMD_4x32 mc = mcx[(r - 1) % 4];
198 const SIMD_4x32 t8 = shuffle(sb9t, t6) ^ shuffle(sb9u, t5) ^
K;
199 const SIMD_4x32 t9 = shuffle(t8, mc) ^ shuffle(sbdu, t5) ^ shuffle(sbdt, t6);
200 const SIMD_4x32 t12 = shuffle(t9, mc) ^ shuffle(sbbu, t5) ^ shuffle(sbbt, t6);
201 return shuffle(t12, mc) ^ shuffle(sbeu, t5) ^ shuffle(sbet, t6);
204inline SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_dec_last_round(SIMD_4x32 B, SIMD_4x32 K,
size_t r) {
205 const uint32_t which_sr = ((((r - 1) << 4) ^ 48) & 48) / 16;
207 const SIMD_4x32 Bh = high_nibs(B);
209 const SIMD_4x32 t2 = shuffle(k_inv2, B);
213 const SIMD_4x32 t5 = B ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, Bh));
214 const SIMD_4x32 t6 = Bh ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, B));
216 const SIMD_4x32 x = shuffle(sboud, t5) ^ shuffle(sbotd, t6) ^
K;
217 return shuffle(x, vperm_sr[which_sr]);
221 vperm_encrypt_blocks(
const uint8_t in[], uint8_t out[],
size_t blocks,
const SIMD_4x32 K[],
size_t rounds) {
224 const size_t blocks2 = blocks - (blocks % 2);
226 for(
size_t i = 0; i != blocks2; i += 2) {
230 B0 = aes_enc_first_round(B0, K[0]);
231 B1 = aes_enc_first_round(B1, K[0]);
233 for(
size_t r = 1; r != rounds; ++r) {
234 B0 = aes_enc_round(B0, K[r], r);
235 B1 = aes_enc_round(B1, K[r], r);
238 B0 = aes_enc_last_round(B0, K[rounds], rounds);
239 B1 = aes_enc_last_round(B1, K[rounds], rounds);
241 B0.store_le(out + i * 16);
242 B1.store_le(out + (i + 1) * 16);
245 for(
size_t i = blocks2; i < blocks; ++i) {
248 B = aes_enc_first_round(B, K[0]);
250 for(
size_t r = 1; r != rounds; ++r) {
251 B = aes_enc_round(B, K[r], r);
254 B = aes_enc_last_round(B, K[rounds], rounds);
255 B.store_le(out + i * 16);
263 vperm_decrypt_blocks(
const uint8_t in[], uint8_t out[],
size_t blocks,
const SIMD_4x32 K[],
size_t rounds) {
266 const size_t blocks2 = blocks - (blocks % 2);
268 for(
size_t i = 0; i != blocks2; i += 2) {
272 B0 = aes_dec_first_round(B0, K[0]);
273 B1 = aes_dec_first_round(B1, K[0]);
275 for(
size_t r = 1; r != rounds; ++r) {
276 B0 = aes_dec_round(B0, K[r], r);
277 B1 = aes_dec_round(B1, K[r], r);
280 B0 = aes_dec_last_round(B0, K[rounds], rounds);
281 B1 = aes_dec_last_round(B1, K[rounds], rounds);
283 B0.store_le(out + i * 16);
284 B1.store_le(out + (i + 1) * 16);
287 for(
size_t i = blocks2; i < blocks; ++i) {
290 B = aes_dec_first_round(B, K[0]);
292 for(
size_t r = 1; r != rounds; ++r) {
293 B = aes_dec_round(B, K[r], r);
296 B = aes_dec_last_round(B, K[rounds], rounds);
297 B.store_le(out + i * 16);
306void AES_128::vperm_encrypt_n(
const uint8_t in[], uint8_t out[],
size_t blocks)
const {
307 const SIMD_4x32
K[11] = {
308 SIMD_4x32(&m_EK[4 * 0]),
309 SIMD_4x32(&m_EK[4 * 1]),
310 SIMD_4x32(&m_EK[4 * 2]),
311 SIMD_4x32(&m_EK[4 * 3]),
312 SIMD_4x32(&m_EK[4 * 4]),
313 SIMD_4x32(&m_EK[4 * 5]),
314 SIMD_4x32(&m_EK[4 * 6]),
315 SIMD_4x32(&m_EK[4 * 7]),
316 SIMD_4x32(&m_EK[4 * 8]),
317 SIMD_4x32(&m_EK[4 * 9]),
318 SIMD_4x32(&m_EK[4 * 10]),
321 return vperm_encrypt_blocks(in, out, blocks, K, 10);
324void AES_128::vperm_decrypt_n(
const uint8_t in[], uint8_t out[],
size_t blocks)
const {
325 const SIMD_4x32
K[11] = {
326 SIMD_4x32(&m_DK[4 * 0]),
327 SIMD_4x32(&m_DK[4 * 1]),
328 SIMD_4x32(&m_DK[4 * 2]),
329 SIMD_4x32(&m_DK[4 * 3]),
330 SIMD_4x32(&m_DK[4 * 4]),
331 SIMD_4x32(&m_DK[4 * 5]),
332 SIMD_4x32(&m_DK[4 * 6]),
333 SIMD_4x32(&m_DK[4 * 7]),
334 SIMD_4x32(&m_DK[4 * 8]),
335 SIMD_4x32(&m_DK[4 * 9]),
336 SIMD_4x32(&m_DK[4 * 10]),
339 return vperm_decrypt_blocks(in, out, blocks, K, 10);
342void AES_192::vperm_encrypt_n(
const uint8_t in[], uint8_t out[],
size_t blocks)
const {
343 const SIMD_4x32
K[13] = {
344 SIMD_4x32(&m_EK[4 * 0]),
345 SIMD_4x32(&m_EK[4 * 1]),
346 SIMD_4x32(&m_EK[4 * 2]),
347 SIMD_4x32(&m_EK[4 * 3]),
348 SIMD_4x32(&m_EK[4 * 4]),
349 SIMD_4x32(&m_EK[4 * 5]),
350 SIMD_4x32(&m_EK[4 * 6]),
351 SIMD_4x32(&m_EK[4 * 7]),
352 SIMD_4x32(&m_EK[4 * 8]),
353 SIMD_4x32(&m_EK[4 * 9]),
354 SIMD_4x32(&m_EK[4 * 10]),
355 SIMD_4x32(&m_EK[4 * 11]),
356 SIMD_4x32(&m_EK[4 * 12]),
359 return vperm_encrypt_blocks(in, out, blocks, K, 12);
362void AES_192::vperm_decrypt_n(
const uint8_t in[], uint8_t out[],
size_t blocks)
const {
363 const SIMD_4x32
K[13] = {
364 SIMD_4x32(&m_DK[4 * 0]),
365 SIMD_4x32(&m_DK[4 * 1]),
366 SIMD_4x32(&m_DK[4 * 2]),
367 SIMD_4x32(&m_DK[4 * 3]),
368 SIMD_4x32(&m_DK[4 * 4]),
369 SIMD_4x32(&m_DK[4 * 5]),
370 SIMD_4x32(&m_DK[4 * 6]),
371 SIMD_4x32(&m_DK[4 * 7]),
372 SIMD_4x32(&m_DK[4 * 8]),
373 SIMD_4x32(&m_DK[4 * 9]),
374 SIMD_4x32(&m_DK[4 * 10]),
375 SIMD_4x32(&m_DK[4 * 11]),
376 SIMD_4x32(&m_DK[4 * 12]),
379 return vperm_decrypt_blocks(in, out, blocks, K, 12);
382void AES_256::vperm_encrypt_n(
const uint8_t in[], uint8_t out[],
size_t blocks)
const {
383 const SIMD_4x32
K[15] = {
384 SIMD_4x32(&m_EK[4 * 0]),
385 SIMD_4x32(&m_EK[4 * 1]),
386 SIMD_4x32(&m_EK[4 * 2]),
387 SIMD_4x32(&m_EK[4 * 3]),
388 SIMD_4x32(&m_EK[4 * 4]),
389 SIMD_4x32(&m_EK[4 * 5]),
390 SIMD_4x32(&m_EK[4 * 6]),
391 SIMD_4x32(&m_EK[4 * 7]),
392 SIMD_4x32(&m_EK[4 * 8]),
393 SIMD_4x32(&m_EK[4 * 9]),
394 SIMD_4x32(&m_EK[4 * 10]),
395 SIMD_4x32(&m_EK[4 * 11]),
396 SIMD_4x32(&m_EK[4 * 12]),
397 SIMD_4x32(&m_EK[4 * 13]),
398 SIMD_4x32(&m_EK[4 * 14]),
401 return vperm_encrypt_blocks(in, out, blocks, K, 14);
404void AES_256::vperm_decrypt_n(
const uint8_t in[], uint8_t out[],
size_t blocks)
const {
405 const SIMD_4x32
K[15] = {
406 SIMD_4x32(&m_DK[4 * 0]),
407 SIMD_4x32(&m_DK[4 * 1]),
408 SIMD_4x32(&m_DK[4 * 2]),
409 SIMD_4x32(&m_DK[4 * 3]),
410 SIMD_4x32(&m_DK[4 * 4]),
411 SIMD_4x32(&m_DK[4 * 5]),
412 SIMD_4x32(&m_DK[4 * 6]),
413 SIMD_4x32(&m_DK[4 * 7]),
414 SIMD_4x32(&m_DK[4 * 8]),
415 SIMD_4x32(&m_DK[4 * 9]),
416 SIMD_4x32(&m_DK[4 * 10]),
417 SIMD_4x32(&m_DK[4 * 11]),
418 SIMD_4x32(&m_DK[4 * 12]),
419 SIMD_4x32(&m_DK[4 * 13]),
420 SIMD_4x32(&m_DK[4 * 14]),
423 return vperm_decrypt_blocks(in, out, blocks, K, 14);
429 aes_schedule_transform(SIMD_4x32 input, SIMD_4x32 table_1, SIMD_4x32 table_2) {
430 return shuffle(table_1, low_nibs(input)) ^ shuffle(table_2, high_nibs(input));
433SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_schedule_mangle(SIMD_4x32 k, uint8_t round_no) {
434 const SIMD_4x32 mc_forward0(0x00030201, 0x04070605, 0x080B0A09, 0x0C0F0E0D);
438 t = shuffle(t, mc_forward0);
439 t2 = t ^ t2 ^ shuffle(t, mc_forward0);
440 return shuffle(t2, vperm_sr[round_no % 4]);
443SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_schedule_mangle_dec(SIMD_4x32 k, uint8_t round_no) {
444 const SIMD_4x32 mc_forward0(0x00030201, 0x04070605, 0x080B0A09, 0x0C0F0E0D);
446 const SIMD_4x32 dsk[8] = {
447 SIMD_4x32(0x7ED9A700, 0xB6116FC8, 0x82255BFC, 0x4AED9334),
448 SIMD_4x32(0x27143300, 0x45765162, 0xE9DAFDCE, 0x8BB89FAC),
449 SIMD_4x32(0xCCA86400, 0x27438FEB, 0xADC90561, 0x4622EE8A),
450 SIMD_4x32(0x4F92DD00, 0x815C13CE, 0xBD602FF2, 0x73AEE13C),
451 SIMD_4x32(0x01C6C700, 0x03C4C502, 0xFA3D3CFB, 0xF83F3EF9),
452 SIMD_4x32(0x38CFF700, 0xEE1921D6, 0x7384BC4B, 0xA5526A9D),
453 SIMD_4x32(0x53732000, 0xE3C390B0, 0x10306343, 0xA080D3F3),
454 SIMD_4x32(0x036982E8, 0xA0CA214B, 0x8CE60D67, 0x2F45AEC4),
457 SIMD_4x32 t = aes_schedule_transform(k, dsk[0], dsk[1]);
458 SIMD_4x32 output = shuffle(t, mc_forward0);
460 t = aes_schedule_transform(t, dsk[2], dsk[3]);
461 output = shuffle(t ^ output, mc_forward0);
463 t = aes_schedule_transform(t, dsk[4], dsk[5]);
464 output = shuffle(t ^ output, mc_forward0);
466 t = aes_schedule_transform(t, dsk[6], dsk[7]);
467 output = shuffle(t ^ output, mc_forward0);
469 return shuffle(output, vperm_sr[round_no % 4]);
472SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_schedule_mangle_last(SIMD_4x32 k, uint8_t round_no) {
473 const SIMD_4x32 out_tr1(0xD6B66000, 0xFF9F4929, 0xDEBE6808, 0xF7974121);
474 const SIMD_4x32 out_tr2(0x50BCEC00, 0x01EDBD51, 0xB05C0CE0, 0xE10D5DB1);
476 k = shuffle(k, vperm_sr[round_no % 4]);
478 return aes_schedule_transform(k, out_tr1, out_tr2);
481SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_schedule_mangle_last_dec(SIMD_4x32 k) {
482 const SIMD_4x32 deskew1(0x47A4E300, 0x07E4A340, 0x5DBEF91A, 0x1DFEB95A);
483 const SIMD_4x32 deskew2(0x83EA6900, 0x5F36B5DC, 0xF49D1E77, 0x2841C2AB);
486 return aes_schedule_transform(k, deskew1, deskew2);
489SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_schedule_round(SIMD_4x32 input1, SIMD_4x32 input2) {
490 SIMD_4x32 smeared = input2 ^ input2.shift_elems_left<1>();
491 smeared ^= smeared.shift_elems_left<2>();
494 const SIMD_4x32 Bh = high_nibs(input1);
495 SIMD_4x32 Bl = low_nibs(input1);
497 const SIMD_4x32 t2 = shuffle(k_inv2, Bl);
501 SIMD_4x32 t5 = Bl ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, Bh));
502 SIMD_4x32 t6 = Bh ^ shuffle(k_inv1, t2 ^ shuffle(k_inv1, Bl));
504 return smeared ^ shuffle(sb1u, t5) ^ shuffle(sb1t, t6);
507SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_schedule_round(SIMD_4x32 rc, SIMD_4x32 input1, SIMD_4x32 input2) {
510 return aes_schedule_round(shuffle(input1, shuffle3333_15), input2 ^ rc);
513SIMD_4x32
BOTAN_FUNC_ISA(BOTAN_VPERM_ISA) aes_schedule_192_smear(SIMD_4x32 x, SIMD_4x32 y) {
514 const SIMD_4x32 shuffle3332 = SIMD_4x32(0x0B0A0908, 0x0F0E0D0C, 0x0F0E0D0C, 0x0F0E0D0C);
515 const SIMD_4x32 shuffle2000 = SIMD_4x32(0x03020100, 0x03020100, 0x03020100, 0x0B0A0908);
517 const SIMD_4x32 zero_top_half(0, 0, 0xFFFFFFFF, 0xFFFFFFFF);
519 return y ^ shuffle(x, shuffle3332) ^ shuffle(y, shuffle2000);
524void AES_128::vperm_key_schedule(
const uint8_t keyb[],
size_t ) {
530 shuffle(key, vperm_sr[2]).store_le(&m_DK[4 * 10]);
532 key = aes_schedule_transform(key, k_ipt1, k_ipt2);
533 key.store_le(&m_EK[0]);
535 for(
size_t i = 1; i != 10; ++i) {
536 key = aes_schedule_round(rcon[i - 1], key, key);
538 aes_schedule_mangle(key, (12 - i) % 4).store_le(&m_EK[4 * i]);
540 aes_schedule_mangle_dec(key, (10 - i) % 4).store_le(&m_DK[4 * (10 - i)]);
543 key = aes_schedule_round(rcon[9], key, key);
544 aes_schedule_mangle_last(key, 2).store_le(&m_EK[4 * 10]);
545 aes_schedule_mangle_last_dec(key).store_le(&m_DK[0]);
548void AES_192::vperm_key_schedule(
const uint8_t keyb[],
size_t ) {
555 shuffle(key1, vperm_sr[0]).store_le(&m_DK[12 * 4]);
557 key1 = aes_schedule_transform(key1, k_ipt1, k_ipt2);
558 key2 = aes_schedule_transform(key2, k_ipt1, k_ipt2);
560 key1.store_le(&m_EK[0]);
562 for(
size_t i = 0; i != 4; ++i) {
565 key2 = aes_schedule_round(rcon[2 * i], key2, key1);
566 const SIMD_4x32 key2t = alignr8(key2, t);
567 aes_schedule_mangle(key2t, (i + 3) % 4).store_le(&m_EK[4 * (3 * i + 1)]);
568 aes_schedule_mangle_dec(key2t, (i + 3) % 4).store_le(&m_DK[4 * (11 - 3 * i)]);
570 t = aes_schedule_192_smear(key2, t);
572 aes_schedule_mangle(t, (i + 2) % 4).store_le(&m_EK[4 * (3 * i + 2)]);
573 aes_schedule_mangle_dec(t, (i + 2) % 4).store_le(&m_DK[4 * (10 - 3 * i)]);
575 key2 = aes_schedule_round(rcon[2 * i + 1], t, key2);
578 aes_schedule_mangle_last(key2, (i + 1) % 4).store_le(&m_EK[4 * (3 * i + 3)]);
579 aes_schedule_mangle_last_dec(key2).store_le(&m_DK[4 * (9 - 3 * i)]);
581 aes_schedule_mangle(key2, (i + 1) % 4).store_le(&m_EK[4 * (3 * i + 3)]);
582 aes_schedule_mangle_dec(key2, (i + 1) % 4).store_le(&m_DK[4 * (9 - 3 * i)]);
586 key2 = aes_schedule_192_smear(key2, t);
590void AES_256::vperm_key_schedule(
const uint8_t keyb[],
size_t ) {
597 shuffle(key1, vperm_sr[2]).store_le(&m_DK[4 * 14]);
599 key1 = aes_schedule_transform(key1, k_ipt1, k_ipt2);
600 key2 = aes_schedule_transform(key2, k_ipt1, k_ipt2);
602 key1.store_le(&m_EK[0]);
603 aes_schedule_mangle(key2, 3).store_le(&m_EK[4]);
605 aes_schedule_mangle_dec(key2, 1).store_le(&m_DK[4 * 13]);
609 for(
size_t i = 2; i != 14; i += 2) {
610 const SIMD_4x32 k_t = key2;
611 key1 = key2 = aes_schedule_round(rcon[(i / 2) - 1], key2, key1);
613 aes_schedule_mangle(key2, i % 4).store_le(&m_EK[4 * i]);
614 aes_schedule_mangle_dec(key2, (i + 2) % 4).store_le(&m_DK[4 * (14 - i)]);
616 key2 = aes_schedule_round(shuffle(key2, shuffle3333), k_t);
618 aes_schedule_mangle(key2, (i - 1) % 4).store_le(&m_EK[4 * (i + 1)]);
619 aes_schedule_mangle_dec(key2, (i + 1) % 4).store_le(&m_DK[4 * (13 - i)]);
622 key2 = aes_schedule_round(rcon[6], key2, key1);
624 aes_schedule_mangle_last(key2, 2).store_le(&m_EK[4 * 14]);
625 aes_schedule_mangle_last_dec(key2).store_le(&m_DK[0]);
static SIMD_4x32 load_le(const void *in) noexcept
static SIMD_4x32 splat_u8(uint8_t B) noexcept
static SIMD_4x32 splat(uint32_t B) noexcept
#define BOTAN_FUNC_ISA(isa)
constexpr void unpoison(const T *p, size_t n)
constexpr void poison(const T *p, size_t n)