Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 2 | /* |
| 3 | * AES-NI + SSE2 implementation of AEGIS-128 |
| 4 | * |
| 5 | * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> |
| 6 | * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #include <linux/linkage.h> |
| 10 | #include <asm/frame.h> |
| 11 | |
| 12 | #define STATE0 %xmm0 |
| 13 | #define STATE1 %xmm1 |
| 14 | #define STATE2 %xmm2 |
| 15 | #define STATE3 %xmm3 |
| 16 | #define STATE4 %xmm4 |
| 17 | #define KEY %xmm5 |
| 18 | #define MSG %xmm5 |
| 19 | #define T0 %xmm6 |
| 20 | #define T1 %xmm7 |
| 21 | |
| 22 | #define STATEP %rdi |
| 23 | #define LEN %rsi |
| 24 | #define SRC %rdx |
| 25 | #define DST %rcx |
| 26 | |
| 27 | .section .rodata.cst16.aegis128_const, "aM", @progbits, 32 |
| 28 | .align 16 |
| 29 | .Laegis128_const_0: |
| 30 | .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d |
| 31 | .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 |
| 32 | .Laegis128_const_1: |
| 33 | .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 |
| 34 | .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd |
| 35 | |
| 36 | .section .rodata.cst16.aegis128_counter, "aM", @progbits, 16 |
| 37 | .align 16 |
| 38 | .Laegis128_counter: |
| 39 | .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 |
| 40 | .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f |
| 41 | |
| 42 | .text |
| 43 | |
| 44 | /* |
| 45 | * aegis128_update |
| 46 | * input: |
| 47 | * STATE[0-4] - input state |
| 48 | * output: |
| 49 | * STATE[0-4] - output state (shifted positions) |
| 50 | * changed: |
| 51 | * T0 |
| 52 | */ |
| 53 | .macro aegis128_update |
| 54 | movdqa STATE4, T0 |
| 55 | aesenc STATE0, STATE4 |
| 56 | aesenc STATE1, STATE0 |
| 57 | aesenc STATE2, STATE1 |
| 58 | aesenc STATE3, STATE2 |
| 59 | aesenc T0, STATE3 |
| 60 | .endm |
| 61 | |
| 62 | /* |
| 63 | * __load_partial: internal ABI |
| 64 | * input: |
| 65 | * LEN - bytes |
| 66 | * SRC - src |
| 67 | * output: |
| 68 | * MSG - message block |
| 69 | * changed: |
| 70 | * T0 |
| 71 | * %r8 |
| 72 | * %r9 |
| 73 | */ |
Jiri Slaby | 74d8b90 | 2019-10-11 13:50:46 +0200 | [diff] [blame] | 74 | SYM_FUNC_START_LOCAL(__load_partial) |
Jan Beulich | a7bea83 | 2018-07-02 04:31:54 -0600 | [diff] [blame] | 75 | xor %r9d, %r9d |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 76 | pxor MSG, MSG |
| 77 | |
| 78 | mov LEN, %r8 |
| 79 | and $0x1, %r8 |
| 80 | jz .Lld_partial_1 |
| 81 | |
| 82 | mov LEN, %r8 |
| 83 | and $0x1E, %r8 |
| 84 | add SRC, %r8 |
| 85 | mov (%r8), %r9b |
| 86 | |
| 87 | .Lld_partial_1: |
| 88 | mov LEN, %r8 |
| 89 | and $0x2, %r8 |
| 90 | jz .Lld_partial_2 |
| 91 | |
| 92 | mov LEN, %r8 |
| 93 | and $0x1C, %r8 |
| 94 | add SRC, %r8 |
| 95 | shl $0x10, %r9 |
| 96 | mov (%r8), %r9w |
| 97 | |
| 98 | .Lld_partial_2: |
| 99 | mov LEN, %r8 |
| 100 | and $0x4, %r8 |
| 101 | jz .Lld_partial_4 |
| 102 | |
| 103 | mov LEN, %r8 |
| 104 | and $0x18, %r8 |
| 105 | add SRC, %r8 |
| 106 | shl $32, %r9 |
| 107 | mov (%r8), %r8d |
| 108 | xor %r8, %r9 |
| 109 | |
| 110 | .Lld_partial_4: |
| 111 | movq %r9, MSG |
| 112 | |
| 113 | mov LEN, %r8 |
| 114 | and $0x8, %r8 |
| 115 | jz .Lld_partial_8 |
| 116 | |
| 117 | mov LEN, %r8 |
| 118 | and $0x10, %r8 |
| 119 | add SRC, %r8 |
| 120 | pslldq $8, MSG |
| 121 | movq (%r8), T0 |
| 122 | pxor T0, MSG |
| 123 | |
| 124 | .Lld_partial_8: |
| 125 | ret |
Jiri Slaby | 74d8b90 | 2019-10-11 13:50:46 +0200 | [diff] [blame] | 126 | SYM_FUNC_END(__load_partial) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 127 | |
| 128 | /* |
| 129 | * __store_partial: internal ABI |
| 130 | * input: |
| 131 | * LEN - bytes |
| 132 | * DST - dst |
| 133 | * output: |
| 134 | * T0 - message block |
| 135 | * changed: |
| 136 | * %r8 |
| 137 | * %r9 |
| 138 | * %r10 |
| 139 | */ |
Jiri Slaby | 74d8b90 | 2019-10-11 13:50:46 +0200 | [diff] [blame] | 140 | SYM_FUNC_START_LOCAL(__store_partial) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 141 | mov LEN, %r8 |
| 142 | mov DST, %r9 |
| 143 | |
| 144 | movq T0, %r10 |
| 145 | |
| 146 | cmp $8, %r8 |
| 147 | jl .Lst_partial_8 |
| 148 | |
| 149 | mov %r10, (%r9) |
| 150 | psrldq $8, T0 |
| 151 | movq T0, %r10 |
| 152 | |
| 153 | sub $8, %r8 |
| 154 | add $8, %r9 |
| 155 | |
| 156 | .Lst_partial_8: |
| 157 | cmp $4, %r8 |
| 158 | jl .Lst_partial_4 |
| 159 | |
| 160 | mov %r10d, (%r9) |
| 161 | shr $32, %r10 |
| 162 | |
| 163 | sub $4, %r8 |
| 164 | add $4, %r9 |
| 165 | |
| 166 | .Lst_partial_4: |
| 167 | cmp $2, %r8 |
| 168 | jl .Lst_partial_2 |
| 169 | |
| 170 | mov %r10w, (%r9) |
| 171 | shr $0x10, %r10 |
| 172 | |
| 173 | sub $2, %r8 |
| 174 | add $2, %r9 |
| 175 | |
| 176 | .Lst_partial_2: |
| 177 | cmp $1, %r8 |
| 178 | jl .Lst_partial_1 |
| 179 | |
| 180 | mov %r10b, (%r9) |
| 181 | |
| 182 | .Lst_partial_1: |
| 183 | ret |
Jiri Slaby | 74d8b90 | 2019-10-11 13:50:46 +0200 | [diff] [blame] | 184 | SYM_FUNC_END(__store_partial) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 185 | |
| 186 | /* |
| 187 | * void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv); |
| 188 | */ |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 189 | SYM_FUNC_START(crypto_aegis128_aesni_init) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 190 | FRAME_BEGIN |
| 191 | |
| 192 | /* load IV: */ |
| 193 | movdqu (%rdx), T1 |
| 194 | |
| 195 | /* load key: */ |
| 196 | movdqa (%rsi), KEY |
| 197 | pxor KEY, T1 |
| 198 | movdqa T1, STATE0 |
| 199 | movdqa KEY, STATE3 |
| 200 | movdqa KEY, STATE4 |
| 201 | |
| 202 | /* load the constants: */ |
| 203 | movdqa .Laegis128_const_0, STATE2 |
| 204 | movdqa .Laegis128_const_1, STATE1 |
| 205 | pxor STATE2, STATE3 |
| 206 | pxor STATE1, STATE4 |
| 207 | |
| 208 | /* update 10 times with KEY / KEY xor IV: */ |
| 209 | aegis128_update; pxor KEY, STATE4 |
| 210 | aegis128_update; pxor T1, STATE3 |
| 211 | aegis128_update; pxor KEY, STATE2 |
| 212 | aegis128_update; pxor T1, STATE1 |
| 213 | aegis128_update; pxor KEY, STATE0 |
| 214 | aegis128_update; pxor T1, STATE4 |
| 215 | aegis128_update; pxor KEY, STATE3 |
| 216 | aegis128_update; pxor T1, STATE2 |
| 217 | aegis128_update; pxor KEY, STATE1 |
| 218 | aegis128_update; pxor T1, STATE0 |
| 219 | |
| 220 | /* store the state: */ |
| 221 | movdqu STATE0, 0x00(STATEP) |
| 222 | movdqu STATE1, 0x10(STATEP) |
| 223 | movdqu STATE2, 0x20(STATEP) |
| 224 | movdqu STATE3, 0x30(STATEP) |
| 225 | movdqu STATE4, 0x40(STATEP) |
| 226 | |
| 227 | FRAME_END |
| 228 | ret |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 229 | SYM_FUNC_END(crypto_aegis128_aesni_init) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 230 | |
| 231 | /* |
| 232 | * void crypto_aegis128_aesni_ad(void *state, unsigned int length, |
| 233 | * const void *data); |
| 234 | */ |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 235 | SYM_FUNC_START(crypto_aegis128_aesni_ad) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 236 | FRAME_BEGIN |
| 237 | |
| 238 | cmp $0x10, LEN |
| 239 | jb .Lad_out |
| 240 | |
| 241 | /* load the state: */ |
| 242 | movdqu 0x00(STATEP), STATE0 |
| 243 | movdqu 0x10(STATEP), STATE1 |
| 244 | movdqu 0x20(STATEP), STATE2 |
| 245 | movdqu 0x30(STATEP), STATE3 |
| 246 | movdqu 0x40(STATEP), STATE4 |
| 247 | |
| 248 | mov SRC, %r8 |
| 249 | and $0xF, %r8 |
| 250 | jnz .Lad_u_loop |
| 251 | |
| 252 | .align 8 |
| 253 | .Lad_a_loop: |
| 254 | movdqa 0x00(SRC), MSG |
| 255 | aegis128_update |
| 256 | pxor MSG, STATE4 |
| 257 | sub $0x10, LEN |
| 258 | cmp $0x10, LEN |
| 259 | jl .Lad_out_1 |
| 260 | |
| 261 | movdqa 0x10(SRC), MSG |
| 262 | aegis128_update |
| 263 | pxor MSG, STATE3 |
| 264 | sub $0x10, LEN |
| 265 | cmp $0x10, LEN |
| 266 | jl .Lad_out_2 |
| 267 | |
| 268 | movdqa 0x20(SRC), MSG |
| 269 | aegis128_update |
| 270 | pxor MSG, STATE2 |
| 271 | sub $0x10, LEN |
| 272 | cmp $0x10, LEN |
| 273 | jl .Lad_out_3 |
| 274 | |
| 275 | movdqa 0x30(SRC), MSG |
| 276 | aegis128_update |
| 277 | pxor MSG, STATE1 |
| 278 | sub $0x10, LEN |
| 279 | cmp $0x10, LEN |
| 280 | jl .Lad_out_4 |
| 281 | |
| 282 | movdqa 0x40(SRC), MSG |
| 283 | aegis128_update |
| 284 | pxor MSG, STATE0 |
| 285 | sub $0x10, LEN |
| 286 | cmp $0x10, LEN |
| 287 | jl .Lad_out_0 |
| 288 | |
| 289 | add $0x50, SRC |
| 290 | jmp .Lad_a_loop |
| 291 | |
| 292 | .align 8 |
| 293 | .Lad_u_loop: |
| 294 | movdqu 0x00(SRC), MSG |
| 295 | aegis128_update |
| 296 | pxor MSG, STATE4 |
| 297 | sub $0x10, LEN |
| 298 | cmp $0x10, LEN |
| 299 | jl .Lad_out_1 |
| 300 | |
| 301 | movdqu 0x10(SRC), MSG |
| 302 | aegis128_update |
| 303 | pxor MSG, STATE3 |
| 304 | sub $0x10, LEN |
| 305 | cmp $0x10, LEN |
| 306 | jl .Lad_out_2 |
| 307 | |
| 308 | movdqu 0x20(SRC), MSG |
| 309 | aegis128_update |
| 310 | pxor MSG, STATE2 |
| 311 | sub $0x10, LEN |
| 312 | cmp $0x10, LEN |
| 313 | jl .Lad_out_3 |
| 314 | |
| 315 | movdqu 0x30(SRC), MSG |
| 316 | aegis128_update |
| 317 | pxor MSG, STATE1 |
| 318 | sub $0x10, LEN |
| 319 | cmp $0x10, LEN |
| 320 | jl .Lad_out_4 |
| 321 | |
| 322 | movdqu 0x40(SRC), MSG |
| 323 | aegis128_update |
| 324 | pxor MSG, STATE0 |
| 325 | sub $0x10, LEN |
| 326 | cmp $0x10, LEN |
| 327 | jl .Lad_out_0 |
| 328 | |
| 329 | add $0x50, SRC |
| 330 | jmp .Lad_u_loop |
| 331 | |
| 332 | /* store the state: */ |
| 333 | .Lad_out_0: |
| 334 | movdqu STATE0, 0x00(STATEP) |
| 335 | movdqu STATE1, 0x10(STATEP) |
| 336 | movdqu STATE2, 0x20(STATEP) |
| 337 | movdqu STATE3, 0x30(STATEP) |
| 338 | movdqu STATE4, 0x40(STATEP) |
| 339 | FRAME_END |
| 340 | ret |
| 341 | |
| 342 | .Lad_out_1: |
| 343 | movdqu STATE4, 0x00(STATEP) |
| 344 | movdqu STATE0, 0x10(STATEP) |
| 345 | movdqu STATE1, 0x20(STATEP) |
| 346 | movdqu STATE2, 0x30(STATEP) |
| 347 | movdqu STATE3, 0x40(STATEP) |
| 348 | FRAME_END |
| 349 | ret |
| 350 | |
| 351 | .Lad_out_2: |
| 352 | movdqu STATE3, 0x00(STATEP) |
| 353 | movdqu STATE4, 0x10(STATEP) |
| 354 | movdqu STATE0, 0x20(STATEP) |
| 355 | movdqu STATE1, 0x30(STATEP) |
| 356 | movdqu STATE2, 0x40(STATEP) |
| 357 | FRAME_END |
| 358 | ret |
| 359 | |
| 360 | .Lad_out_3: |
| 361 | movdqu STATE2, 0x00(STATEP) |
| 362 | movdqu STATE3, 0x10(STATEP) |
| 363 | movdqu STATE4, 0x20(STATEP) |
| 364 | movdqu STATE0, 0x30(STATEP) |
| 365 | movdqu STATE1, 0x40(STATEP) |
| 366 | FRAME_END |
| 367 | ret |
| 368 | |
| 369 | .Lad_out_4: |
| 370 | movdqu STATE1, 0x00(STATEP) |
| 371 | movdqu STATE2, 0x10(STATEP) |
| 372 | movdqu STATE3, 0x20(STATEP) |
| 373 | movdqu STATE4, 0x30(STATEP) |
| 374 | movdqu STATE0, 0x40(STATEP) |
| 375 | FRAME_END |
| 376 | ret |
| 377 | |
| 378 | .Lad_out: |
| 379 | FRAME_END |
| 380 | ret |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 381 | SYM_FUNC_END(crypto_aegis128_aesni_ad) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 382 | |
| 383 | .macro encrypt_block a s0 s1 s2 s3 s4 i |
| 384 | movdq\a (\i * 0x10)(SRC), MSG |
| 385 | movdqa MSG, T0 |
| 386 | pxor \s1, T0 |
| 387 | pxor \s4, T0 |
| 388 | movdqa \s2, T1 |
| 389 | pand \s3, T1 |
| 390 | pxor T1, T0 |
| 391 | movdq\a T0, (\i * 0x10)(DST) |
| 392 | |
| 393 | aegis128_update |
| 394 | pxor MSG, \s4 |
| 395 | |
| 396 | sub $0x10, LEN |
| 397 | cmp $0x10, LEN |
| 398 | jl .Lenc_out_\i |
| 399 | .endm |
| 400 | |
| 401 | /* |
| 402 | * void crypto_aegis128_aesni_enc(void *state, unsigned int length, |
| 403 | * const void *src, void *dst); |
| 404 | */ |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 405 | SYM_FUNC_START(crypto_aegis128_aesni_enc) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 406 | FRAME_BEGIN |
| 407 | |
| 408 | cmp $0x10, LEN |
| 409 | jb .Lenc_out |
| 410 | |
| 411 | /* load the state: */ |
| 412 | movdqu 0x00(STATEP), STATE0 |
| 413 | movdqu 0x10(STATEP), STATE1 |
| 414 | movdqu 0x20(STATEP), STATE2 |
| 415 | movdqu 0x30(STATEP), STATE3 |
| 416 | movdqu 0x40(STATEP), STATE4 |
| 417 | |
| 418 | mov SRC, %r8 |
| 419 | or DST, %r8 |
| 420 | and $0xF, %r8 |
| 421 | jnz .Lenc_u_loop |
| 422 | |
| 423 | .align 8 |
| 424 | .Lenc_a_loop: |
| 425 | encrypt_block a STATE0 STATE1 STATE2 STATE3 STATE4 0 |
| 426 | encrypt_block a STATE4 STATE0 STATE1 STATE2 STATE3 1 |
| 427 | encrypt_block a STATE3 STATE4 STATE0 STATE1 STATE2 2 |
| 428 | encrypt_block a STATE2 STATE3 STATE4 STATE0 STATE1 3 |
| 429 | encrypt_block a STATE1 STATE2 STATE3 STATE4 STATE0 4 |
| 430 | |
| 431 | add $0x50, SRC |
| 432 | add $0x50, DST |
| 433 | jmp .Lenc_a_loop |
| 434 | |
| 435 | .align 8 |
| 436 | .Lenc_u_loop: |
| 437 | encrypt_block u STATE0 STATE1 STATE2 STATE3 STATE4 0 |
| 438 | encrypt_block u STATE4 STATE0 STATE1 STATE2 STATE3 1 |
| 439 | encrypt_block u STATE3 STATE4 STATE0 STATE1 STATE2 2 |
| 440 | encrypt_block u STATE2 STATE3 STATE4 STATE0 STATE1 3 |
| 441 | encrypt_block u STATE1 STATE2 STATE3 STATE4 STATE0 4 |
| 442 | |
| 443 | add $0x50, SRC |
| 444 | add $0x50, DST |
| 445 | jmp .Lenc_u_loop |
| 446 | |
| 447 | /* store the state: */ |
| 448 | .Lenc_out_0: |
| 449 | movdqu STATE4, 0x00(STATEP) |
| 450 | movdqu STATE0, 0x10(STATEP) |
| 451 | movdqu STATE1, 0x20(STATEP) |
| 452 | movdqu STATE2, 0x30(STATEP) |
| 453 | movdqu STATE3, 0x40(STATEP) |
| 454 | FRAME_END |
| 455 | ret |
| 456 | |
| 457 | .Lenc_out_1: |
| 458 | movdqu STATE3, 0x00(STATEP) |
| 459 | movdqu STATE4, 0x10(STATEP) |
| 460 | movdqu STATE0, 0x20(STATEP) |
| 461 | movdqu STATE1, 0x30(STATEP) |
| 462 | movdqu STATE2, 0x40(STATEP) |
| 463 | FRAME_END |
| 464 | ret |
| 465 | |
| 466 | .Lenc_out_2: |
| 467 | movdqu STATE2, 0x00(STATEP) |
| 468 | movdqu STATE3, 0x10(STATEP) |
| 469 | movdqu STATE4, 0x20(STATEP) |
| 470 | movdqu STATE0, 0x30(STATEP) |
| 471 | movdqu STATE1, 0x40(STATEP) |
| 472 | FRAME_END |
| 473 | ret |
| 474 | |
| 475 | .Lenc_out_3: |
| 476 | movdqu STATE1, 0x00(STATEP) |
| 477 | movdqu STATE2, 0x10(STATEP) |
| 478 | movdqu STATE3, 0x20(STATEP) |
| 479 | movdqu STATE4, 0x30(STATEP) |
| 480 | movdqu STATE0, 0x40(STATEP) |
| 481 | FRAME_END |
| 482 | ret |
| 483 | |
| 484 | .Lenc_out_4: |
| 485 | movdqu STATE0, 0x00(STATEP) |
| 486 | movdqu STATE1, 0x10(STATEP) |
| 487 | movdqu STATE2, 0x20(STATEP) |
| 488 | movdqu STATE3, 0x30(STATEP) |
| 489 | movdqu STATE4, 0x40(STATEP) |
| 490 | FRAME_END |
| 491 | ret |
| 492 | |
| 493 | .Lenc_out: |
| 494 | FRAME_END |
| 495 | ret |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 496 | SYM_FUNC_END(crypto_aegis128_aesni_enc) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 497 | |
| 498 | /* |
| 499 | * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length, |
| 500 | * const void *src, void *dst); |
| 501 | */ |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 502 | SYM_FUNC_START(crypto_aegis128_aesni_enc_tail) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 503 | FRAME_BEGIN |
| 504 | |
| 505 | /* load the state: */ |
| 506 | movdqu 0x00(STATEP), STATE0 |
| 507 | movdqu 0x10(STATEP), STATE1 |
| 508 | movdqu 0x20(STATEP), STATE2 |
| 509 | movdqu 0x30(STATEP), STATE3 |
| 510 | movdqu 0x40(STATEP), STATE4 |
| 511 | |
| 512 | /* encrypt message: */ |
| 513 | call __load_partial |
| 514 | |
| 515 | movdqa MSG, T0 |
| 516 | pxor STATE1, T0 |
| 517 | pxor STATE4, T0 |
| 518 | movdqa STATE2, T1 |
| 519 | pand STATE3, T1 |
| 520 | pxor T1, T0 |
| 521 | |
| 522 | call __store_partial |
| 523 | |
| 524 | aegis128_update |
| 525 | pxor MSG, STATE4 |
| 526 | |
| 527 | /* store the state: */ |
| 528 | movdqu STATE4, 0x00(STATEP) |
| 529 | movdqu STATE0, 0x10(STATEP) |
| 530 | movdqu STATE1, 0x20(STATEP) |
| 531 | movdqu STATE2, 0x30(STATEP) |
| 532 | movdqu STATE3, 0x40(STATEP) |
| 533 | |
| 534 | FRAME_END |
Borislav Petkov | 221e00d | 2018-06-23 12:36:22 +0200 | [diff] [blame] | 535 | ret |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 536 | SYM_FUNC_END(crypto_aegis128_aesni_enc_tail) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 537 | |
| 538 | .macro decrypt_block a s0 s1 s2 s3 s4 i |
| 539 | movdq\a (\i * 0x10)(SRC), MSG |
| 540 | pxor \s1, MSG |
| 541 | pxor \s4, MSG |
| 542 | movdqa \s2, T1 |
| 543 | pand \s3, T1 |
| 544 | pxor T1, MSG |
| 545 | movdq\a MSG, (\i * 0x10)(DST) |
| 546 | |
| 547 | aegis128_update |
| 548 | pxor MSG, \s4 |
| 549 | |
| 550 | sub $0x10, LEN |
| 551 | cmp $0x10, LEN |
| 552 | jl .Ldec_out_\i |
| 553 | .endm |
| 554 | |
| 555 | /* |
| 556 | * void crypto_aegis128_aesni_dec(void *state, unsigned int length, |
| 557 | * const void *src, void *dst); |
| 558 | */ |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 559 | SYM_FUNC_START(crypto_aegis128_aesni_dec) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 560 | FRAME_BEGIN |
| 561 | |
| 562 | cmp $0x10, LEN |
| 563 | jb .Ldec_out |
| 564 | |
| 565 | /* load the state: */ |
| 566 | movdqu 0x00(STATEP), STATE0 |
| 567 | movdqu 0x10(STATEP), STATE1 |
| 568 | movdqu 0x20(STATEP), STATE2 |
| 569 | movdqu 0x30(STATEP), STATE3 |
| 570 | movdqu 0x40(STATEP), STATE4 |
| 571 | |
| 572 | mov SRC, %r8 |
| 573 | or DST, %r8 |
| 574 | and $0xF, %r8 |
| 575 | jnz .Ldec_u_loop |
| 576 | |
| 577 | .align 8 |
| 578 | .Ldec_a_loop: |
| 579 | decrypt_block a STATE0 STATE1 STATE2 STATE3 STATE4 0 |
| 580 | decrypt_block a STATE4 STATE0 STATE1 STATE2 STATE3 1 |
| 581 | decrypt_block a STATE3 STATE4 STATE0 STATE1 STATE2 2 |
| 582 | decrypt_block a STATE2 STATE3 STATE4 STATE0 STATE1 3 |
| 583 | decrypt_block a STATE1 STATE2 STATE3 STATE4 STATE0 4 |
| 584 | |
| 585 | add $0x50, SRC |
| 586 | add $0x50, DST |
| 587 | jmp .Ldec_a_loop |
| 588 | |
| 589 | .align 8 |
| 590 | .Ldec_u_loop: |
| 591 | decrypt_block u STATE0 STATE1 STATE2 STATE3 STATE4 0 |
| 592 | decrypt_block u STATE4 STATE0 STATE1 STATE2 STATE3 1 |
| 593 | decrypt_block u STATE3 STATE4 STATE0 STATE1 STATE2 2 |
| 594 | decrypt_block u STATE2 STATE3 STATE4 STATE0 STATE1 3 |
| 595 | decrypt_block u STATE1 STATE2 STATE3 STATE4 STATE0 4 |
| 596 | |
| 597 | add $0x50, SRC |
| 598 | add $0x50, DST |
| 599 | jmp .Ldec_u_loop |
| 600 | |
| 601 | /* store the state: */ |
| 602 | .Ldec_out_0: |
| 603 | movdqu STATE4, 0x00(STATEP) |
| 604 | movdqu STATE0, 0x10(STATEP) |
| 605 | movdqu STATE1, 0x20(STATEP) |
| 606 | movdqu STATE2, 0x30(STATEP) |
| 607 | movdqu STATE3, 0x40(STATEP) |
| 608 | FRAME_END |
| 609 | ret |
| 610 | |
| 611 | .Ldec_out_1: |
| 612 | movdqu STATE3, 0x00(STATEP) |
| 613 | movdqu STATE4, 0x10(STATEP) |
| 614 | movdqu STATE0, 0x20(STATEP) |
| 615 | movdqu STATE1, 0x30(STATEP) |
| 616 | movdqu STATE2, 0x40(STATEP) |
| 617 | FRAME_END |
| 618 | ret |
| 619 | |
| 620 | .Ldec_out_2: |
| 621 | movdqu STATE2, 0x00(STATEP) |
| 622 | movdqu STATE3, 0x10(STATEP) |
| 623 | movdqu STATE4, 0x20(STATEP) |
| 624 | movdqu STATE0, 0x30(STATEP) |
| 625 | movdqu STATE1, 0x40(STATEP) |
| 626 | FRAME_END |
| 627 | ret |
| 628 | |
| 629 | .Ldec_out_3: |
| 630 | movdqu STATE1, 0x00(STATEP) |
| 631 | movdqu STATE2, 0x10(STATEP) |
| 632 | movdqu STATE3, 0x20(STATEP) |
| 633 | movdqu STATE4, 0x30(STATEP) |
| 634 | movdqu STATE0, 0x40(STATEP) |
| 635 | FRAME_END |
| 636 | ret |
| 637 | |
| 638 | .Ldec_out_4: |
| 639 | movdqu STATE0, 0x00(STATEP) |
| 640 | movdqu STATE1, 0x10(STATEP) |
| 641 | movdqu STATE2, 0x20(STATEP) |
| 642 | movdqu STATE3, 0x30(STATEP) |
| 643 | movdqu STATE4, 0x40(STATEP) |
| 644 | FRAME_END |
| 645 | ret |
| 646 | |
| 647 | .Ldec_out: |
| 648 | FRAME_END |
| 649 | ret |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 650 | SYM_FUNC_END(crypto_aegis128_aesni_dec) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 651 | |
| 652 | /* |
| 653 | * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length, |
| 654 | * const void *src, void *dst); |
| 655 | */ |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 656 | SYM_FUNC_START(crypto_aegis128_aesni_dec_tail) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 657 | FRAME_BEGIN |
| 658 | |
| 659 | /* load the state: */ |
| 660 | movdqu 0x00(STATEP), STATE0 |
| 661 | movdqu 0x10(STATEP), STATE1 |
| 662 | movdqu 0x20(STATEP), STATE2 |
| 663 | movdqu 0x30(STATEP), STATE3 |
| 664 | movdqu 0x40(STATEP), STATE4 |
| 665 | |
| 666 | /* decrypt message: */ |
| 667 | call __load_partial |
| 668 | |
| 669 | pxor STATE1, MSG |
| 670 | pxor STATE4, MSG |
| 671 | movdqa STATE2, T1 |
| 672 | pand STATE3, T1 |
| 673 | pxor T1, MSG |
| 674 | |
| 675 | movdqa MSG, T0 |
| 676 | call __store_partial |
| 677 | |
| 678 | /* mask with byte count: */ |
| 679 | movq LEN, T0 |
| 680 | punpcklbw T0, T0 |
| 681 | punpcklbw T0, T0 |
| 682 | punpcklbw T0, T0 |
| 683 | punpcklbw T0, T0 |
| 684 | movdqa .Laegis128_counter, T1 |
| 685 | pcmpgtb T1, T0 |
| 686 | pand T0, MSG |
| 687 | |
| 688 | aegis128_update |
| 689 | pxor MSG, STATE4 |
| 690 | |
| 691 | /* store the state: */ |
| 692 | movdqu STATE4, 0x00(STATEP) |
| 693 | movdqu STATE0, 0x10(STATEP) |
| 694 | movdqu STATE1, 0x20(STATEP) |
| 695 | movdqu STATE2, 0x30(STATEP) |
| 696 | movdqu STATE3, 0x40(STATEP) |
| 697 | |
| 698 | FRAME_END |
| 699 | ret |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 700 | SYM_FUNC_END(crypto_aegis128_aesni_dec_tail) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 701 | |
| 702 | /* |
| 703 | * void crypto_aegis128_aesni_final(void *state, void *tag_xor, |
| 704 | * u64 assoclen, u64 cryptlen); |
| 705 | */ |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 706 | SYM_FUNC_START(crypto_aegis128_aesni_final) |
Ondrej Mosnacek | 1d373d4 | 2018-05-11 14:12:51 +0200 | [diff] [blame] | 707 | FRAME_BEGIN |
| 708 | |
| 709 | /* load the state: */ |
| 710 | movdqu 0x00(STATEP), STATE0 |
| 711 | movdqu 0x10(STATEP), STATE1 |
| 712 | movdqu 0x20(STATEP), STATE2 |
| 713 | movdqu 0x30(STATEP), STATE3 |
| 714 | movdqu 0x40(STATEP), STATE4 |
| 715 | |
| 716 | /* prepare length block: */ |
| 717 | movq %rdx, MSG |
| 718 | movq %rcx, T0 |
| 719 | pslldq $8, T0 |
| 720 | pxor T0, MSG |
| 721 | psllq $3, MSG /* multiply by 8 (to get bit count) */ |
| 722 | |
| 723 | pxor STATE3, MSG |
| 724 | |
| 725 | /* update state: */ |
| 726 | aegis128_update; pxor MSG, STATE4 |
| 727 | aegis128_update; pxor MSG, STATE3 |
| 728 | aegis128_update; pxor MSG, STATE2 |
| 729 | aegis128_update; pxor MSG, STATE1 |
| 730 | aegis128_update; pxor MSG, STATE0 |
| 731 | aegis128_update; pxor MSG, STATE4 |
| 732 | aegis128_update; pxor MSG, STATE3 |
| 733 | |
| 734 | /* xor tag: */ |
| 735 | movdqu (%rsi), MSG |
| 736 | |
| 737 | pxor STATE0, MSG |
| 738 | pxor STATE1, MSG |
| 739 | pxor STATE2, MSG |
| 740 | pxor STATE3, MSG |
| 741 | pxor STATE4, MSG |
| 742 | |
| 743 | movdqu MSG, (%rsi) |
| 744 | |
| 745 | FRAME_END |
| 746 | ret |
Jiri Slaby | 6dcc562 | 2019-10-11 13:51:04 +0200 | [diff] [blame] | 747 | SYM_FUNC_END(crypto_aegis128_aesni_final) |