aesni-x86_64.pl revision 04ef91b390dfcc6125913e2f2af502d23d7a5112
1#!/usr/bin/env perl 2# 3# ==================================================================== 4# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL 5# project. The module is, however, dual licensed under OpenSSL and 6# CRYPTOGAMS licenses depending on where you obtain it. For further 7# details see http://www.openssl.org/~appro/cryptogams/. 8# ==================================================================== 9# 10# This module implements support for Intel AES-NI extension. In 11# OpenSSL context it's used with Intel engine, but can also be used as 12# drop-in replacement for crypto/aes/asm/aes-x86_64.pl [see below for 13# details]. 14# 15# Performance. 16# 17# Given aes(enc|dec) instructions' latency asymptotic performance for 18# non-parallelizable modes such as CBC encrypt is 3.75 cycles per byte 19# processed with 128-bit key. And given their throughput asymptotic 20# performance for parallelizable modes is 1.25 cycles per byte. Being 21# asymptotic limit it's not something you commonly achieve in reality, 22# but how close does one get? Below are results collected for 23# different modes and block sized. Pairs of numbers are for en-/ 24# decryption. 25# 26# 16-byte 64-byte 256-byte 1-KB 8-KB 27# ECB 4.25/4.25 1.38/1.38 1.28/1.28 1.26/1.26 1.26/1.26 28# CTR 5.42/5.42 1.92/1.92 1.44/1.44 1.28/1.28 1.26/1.26 29# CBC 4.38/4.43 4.15/1.43 4.07/1.32 4.07/1.29 4.06/1.28 30# CCM 5.66/9.42 4.42/5.41 4.16/4.40 4.09/4.15 4.06/4.07 31# OFB 5.42/5.42 4.64/4.64 4.44/4.44 4.39/4.39 4.38/4.38 32# CFB 5.73/5.85 5.56/5.62 5.48/5.56 5.47/5.55 5.47/5.55 33# 34# ECB, CTR, CBC and CCM results are free from EVP overhead. This means 35# that otherwise used 'openssl speed -evp aes-128-??? -engine aesni 36# [-decrypt]' will exhibit 10-15% worse results for smaller blocks. 37# The results were collected with specially crafted speed.c benchmark 38# in order to compare them with results reported in "Intel Advanced 39# Encryption Standard (AES) New Instruction Set" White Paper Revision 40# 3.0 dated May 2010. All above results are consistently better. This 41# module also provides better performance for block sizes smaller than 42# 128 bytes in points *not* represented in the above table. 43# 44# Looking at the results for 8-KB buffer. 45# 46# CFB and OFB results are far from the limit, because implementation 47# uses "generic" CRYPTO_[c|o]fb128_encrypt interfaces relying on 48# single-block aesni_encrypt, which is not the most optimal way to go. 49# CBC encrypt result is unexpectedly high and there is no documented 50# explanation for it. Seemingly there is a small penalty for feeding 51# the result back to AES unit the way it's done in CBC mode. There is 52# nothing one can do and the result appears optimal. CCM result is 53# identical to CBC, because CBC-MAC is essentially CBC encrypt without 54# saving output. CCM CTR "stays invisible," because it's neatly 55# interleaved wih CBC-MAC. This provides ~30% improvement over 56# "straghtforward" CCM implementation with CTR and CBC-MAC performed 57# disjointly. Parallelizable modes practically achieve the theoretical 58# limit. 59# 60# Looking at how results vary with buffer size. 61# 62# Curves are practically saturated at 1-KB buffer size. In most cases 63# "256-byte" performance is >95%, and "64-byte" is ~90% of "8-KB" one. 64# CTR curve doesn't follow this pattern and is "slowest" changing one 65# with "256-byte" result being 87% of "8-KB." This is because overhead 66# in CTR mode is most computationally intensive. Small-block CCM 67# decrypt is slower than encrypt, because first CTR and last CBC-MAC 68# iterations can't be interleaved. 69# 70# Results for 192- and 256-bit keys. 71# 72# EVP-free results were observed to scale perfectly with number of 73# rounds for larger block sizes, i.e. 192-bit result being 10/12 times 74# lower and 256-bit one - 10/14. Well, in CBC encrypt case differences 75# are a tad smaller, because the above mentioned penalty biases all 76# results by same constant value. In similar way function call 77# overhead affects small-block performance, as well as OFB and CFB 78# results. Differences are not large, most common coefficients are 79# 10/11.7 and 10/13.4 (as opposite to 10/12.0 and 10/14.0), but one 80# observe even 10/11.2 and 10/12.4 (CTR, OFB, CFB)... 81 82# January 2011 83# 84# While Westmere processor features 6 cycles latency for aes[enc|dec] 85# instructions, which can be scheduled every second cycle, Sandy 86# Bridge spends 8 cycles per instruction, but it can schedule them 87# every cycle. This means that code targeting Westmere would perform 88# suboptimally on Sandy Bridge. Therefore this update. 89# 90# In addition, non-parallelizable CBC encrypt (as well as CCM) is 91# optimized. Relative improvement might appear modest, 8% on Westmere, 92# but in absolute terms it's 3.77 cycles per byte encrypted with 93# 128-bit key on Westmere, and 5.07 - on Sandy Bridge. These numbers 94# should be compared to asymptotic limits of 3.75 for Westmere and 95# 5.00 for Sandy Bridge. Actually, the fact that they get this close 96# to asymptotic limits is quite amazing. Indeed, the limit is 97# calculated as latency times number of rounds, 10 for 128-bit key, 98# and divided by 16, the number of bytes in block, or in other words 99# it accounts *solely* for aesenc instructions. But there are extra 100# instructions, and numbers so close to the asymptotic limits mean 101# that it's as if it takes as little as *one* additional cycle to 102# execute all of them. How is it possible? It is possible thanks to 103# out-of-order execution logic, which manages to overlap post- 104# processing of previous block, things like saving the output, with 105# actual encryption of current block, as well as pre-processing of 106# current block, things like fetching input and xor-ing it with 107# 0-round element of the key schedule, with actual encryption of 108# previous block. Keep this in mind... 109# 110# For parallelizable modes, such as ECB, CBC decrypt, CTR, higher 111# performance is achieved by interleaving instructions working on 112# independent blocks. In which case asymptotic limit for such modes 113# can be obtained by dividing above mentioned numbers by AES 114# instructions' interleave factor. Westmere can execute at most 3 115# instructions at a time, meaning that optimal interleave factor is 3, 116# and that's where the "magic" number of 1.25 come from. "Optimal 117# interleave factor" means that increase of interleave factor does 118# not improve performance. The formula has proven to reflect reality 119# pretty well on Westmere... Sandy Bridge on the other hand can 120# execute up to 8 AES instructions at a time, so how does varying 121# interleave factor affect the performance? Here is table for ECB 122# (numbers are cycles per byte processed with 128-bit key): 123# 124# instruction interleave factor 3x 6x 8x 125# theoretical asymptotic limit 1.67 0.83 0.625 126# measured performance for 8KB block 1.05 0.86 0.84 127# 128# "as if" interleave factor 4.7x 5.8x 6.0x 129# 130# Further data for other parallelizable modes: 131# 132# CBC decrypt 1.16 0.93 0.93 133# CTR 1.14 0.91 n/a 134# 135# Well, given 3x column it's probably inappropriate to call the limit 136# asymptotic, if it can be surpassed, isn't it? What happens there? 137# Rewind to CBC paragraph for the answer. Yes, out-of-order execution 138# magic is responsible for this. Processor overlaps not only the 139# additional instructions with AES ones, but even AES instuctions 140# processing adjacent triplets of independent blocks. In the 6x case 141# additional instructions still claim disproportionally small amount 142# of additional cycles, but in 8x case number of instructions must be 143# a tad too high for out-of-order logic to cope with, and AES unit 144# remains underutilized... As you can see 8x interleave is hardly 145# justifiable, so there no need to feel bad that 32-bit aesni-x86.pl 146# utilizies 6x interleave because of limited register bank capacity. 147# 148# Higher interleave factors do have negative impact on Westmere 149# performance. While for ECB mode it's negligible ~1.5%, other 150# parallelizables perform ~5% worse, which is outweighed by ~25% 151# improvement on Sandy Bridge. To balance regression on Westmere 152# CTR mode was implemented with 6x aesenc interleave factor. 153 154# April 2011 155# 156# Add aesni_xts_[en|de]crypt. Westmere spends 1.33 cycles processing 157# one byte out of 8KB with 128-bit key, Sandy Bridge - 0.97. Just like 158# in CTR mode AES instruction interleave factor was chosen to be 6x. 159 160$PREFIX="aesni"; # if $PREFIX is set to "AES", the script 161 # generates drop-in replacement for 162 # crypto/aes/asm/aes-x86_64.pl:-) 163 164$flavour = shift; 165$output = shift; 166if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } 167 168$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); 169 170$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; 171( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or 172( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or 173die "can't locate x86_64-xlate.pl"; 174 175open OUT,"| \"$^X\" $xlate $flavour $output"; 176*STDOUT=*OUT; 177 178$movkey = $PREFIX eq "aesni" ? "movups" : "movups"; 179@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order 180 ("%rdi","%rsi","%rdx","%rcx"); # Unix order 181 182$code=".text\n"; 183 184$rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!! 185# this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ... 186$inp="%rdi"; 187$out="%rsi"; 188$len="%rdx"; 189$key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!! 190$ivp="%r8"; # cbc, ctr, ... 191 192$rnds_="%r10d"; # backup copy for $rounds 193$key_="%r11"; # backup copy for $key 194 195# %xmm register layout 196$rndkey0="%xmm0"; $rndkey1="%xmm1"; 197$inout0="%xmm2"; $inout1="%xmm3"; 198$inout2="%xmm4"; $inout3="%xmm5"; 199$inout4="%xmm6"; $inout5="%xmm7"; 200$inout6="%xmm8"; $inout7="%xmm9"; 201 202$in2="%xmm6"; $in1="%xmm7"; # used in CBC decrypt, CTR, ... 203$in0="%xmm8"; $iv="%xmm9"; 204 205# Inline version of internal aesni_[en|de]crypt1. 206# 207# Why folded loop? Because aes[enc|dec] is slow enough to accommodate 208# cycles which take care of loop variables... 209{ my $sn; 210sub aesni_generate1 { 211my ($p,$key,$rounds,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout)); 212++$sn; 213$code.=<<___; 214 $movkey ($key),$rndkey0 215 $movkey 16($key),$rndkey1 216___ 217$code.=<<___ if (defined($ivec)); 218 xorps $rndkey0,$ivec 219 lea 32($key),$key 220 xorps $ivec,$inout 221___ 222$code.=<<___ if (!defined($ivec)); 223 lea 32($key),$key 224 xorps $rndkey0,$inout 225___ 226$code.=<<___; 227.Loop_${p}1_$sn: 228 aes${p} $rndkey1,$inout 229 dec $rounds 230 $movkey ($key),$rndkey1 231 lea 16($key),$key 232 jnz .Loop_${p}1_$sn # loop body is 16 bytes 233 aes${p}last $rndkey1,$inout 234___ 235}} 236# void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key); 237# 238{ my ($inp,$out,$key) = @_4args; 239 240$code.=<<___; 241.globl ${PREFIX}_encrypt 242.type ${PREFIX}_encrypt,\@abi-omnipotent 243.align 16 244${PREFIX}_encrypt: 245 movups ($inp),$inout0 # load input 246 mov 240($key),$rounds # key->rounds 247___ 248 &aesni_generate1("enc",$key,$rounds); 249$code.=<<___; 250 movups $inout0,($out) # output 251 ret 252.size ${PREFIX}_encrypt,.-${PREFIX}_encrypt 253 254.globl ${PREFIX}_decrypt 255.type ${PREFIX}_decrypt,\@abi-omnipotent 256.align 16 257${PREFIX}_decrypt: 258 movups ($inp),$inout0 # load input 259 mov 240($key),$rounds # key->rounds 260___ 261 &aesni_generate1("dec",$key,$rounds); 262$code.=<<___; 263 movups $inout0,($out) # output 264 ret 265.size ${PREFIX}_decrypt, .-${PREFIX}_decrypt 266___ 267} 268 269# _aesni_[en|de]cryptN are private interfaces, N denotes interleave 270# factor. Why 3x subroutine were originally used in loops? Even though 271# aes[enc|dec] latency was originally 6, it could be scheduled only 272# every *2nd* cycle. Thus 3x interleave was the one providing optimal 273# utilization, i.e. when subroutine's throughput is virtually same as 274# of non-interleaved subroutine [for number of input blocks up to 3]. 275# This is why it makes no sense to implement 2x subroutine. 276# aes[enc|dec] latency in next processor generation is 8, but the 277# instructions can be scheduled every cycle. Optimal interleave for 278# new processor is therefore 8x... 279sub aesni_generate3 { 280my $dir=shift; 281# As already mentioned it takes in $key and $rounds, which are *not* 282# preserved. $inout[0-2] is cipher/clear text... 283$code.=<<___; 284.type _aesni_${dir}rypt3,\@abi-omnipotent 285.align 16 286_aesni_${dir}rypt3: 287 $movkey ($key),$rndkey0 288 shr \$1,$rounds 289 $movkey 16($key),$rndkey1 290 lea 32($key),$key 291 xorps $rndkey0,$inout0 292 xorps $rndkey0,$inout1 293 xorps $rndkey0,$inout2 294 $movkey ($key),$rndkey0 295 296.L${dir}_loop3: 297 aes${dir} $rndkey1,$inout0 298 aes${dir} $rndkey1,$inout1 299 dec $rounds 300 aes${dir} $rndkey1,$inout2 301 $movkey 16($key),$rndkey1 302 aes${dir} $rndkey0,$inout0 303 aes${dir} $rndkey0,$inout1 304 lea 32($key),$key 305 aes${dir} $rndkey0,$inout2 306 $movkey ($key),$rndkey0 307 jnz .L${dir}_loop3 308 309 aes${dir} $rndkey1,$inout0 310 aes${dir} $rndkey1,$inout1 311 aes${dir} $rndkey1,$inout2 312 aes${dir}last $rndkey0,$inout0 313 aes${dir}last $rndkey0,$inout1 314 aes${dir}last $rndkey0,$inout2 315 ret 316.size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3 317___ 318} 319# 4x interleave is implemented to improve small block performance, 320# most notably [and naturally] 4 block by ~30%. One can argue that one 321# should have implemented 5x as well, but improvement would be <20%, 322# so it's not worth it... 323sub aesni_generate4 { 324my $dir=shift; 325# As already mentioned it takes in $key and $rounds, which are *not* 326# preserved. $inout[0-3] is cipher/clear text... 327$code.=<<___; 328.type _aesni_${dir}rypt4,\@abi-omnipotent 329.align 16 330_aesni_${dir}rypt4: 331 $movkey ($key),$rndkey0 332 shr \$1,$rounds 333 $movkey 16($key),$rndkey1 334 lea 32($key),$key 335 xorps $rndkey0,$inout0 336 xorps $rndkey0,$inout1 337 xorps $rndkey0,$inout2 338 xorps $rndkey0,$inout3 339 $movkey ($key),$rndkey0 340 341.L${dir}_loop4: 342 aes${dir} $rndkey1,$inout0 343 aes${dir} $rndkey1,$inout1 344 dec $rounds 345 aes${dir} $rndkey1,$inout2 346 aes${dir} $rndkey1,$inout3 347 $movkey 16($key),$rndkey1 348 aes${dir} $rndkey0,$inout0 349 aes${dir} $rndkey0,$inout1 350 lea 32($key),$key 351 aes${dir} $rndkey0,$inout2 352 aes${dir} $rndkey0,$inout3 353 $movkey ($key),$rndkey0 354 jnz .L${dir}_loop4 355 356 aes${dir} $rndkey1,$inout0 357 aes${dir} $rndkey1,$inout1 358 aes${dir} $rndkey1,$inout2 359 aes${dir} $rndkey1,$inout3 360 aes${dir}last $rndkey0,$inout0 361 aes${dir}last $rndkey0,$inout1 362 aes${dir}last $rndkey0,$inout2 363 aes${dir}last $rndkey0,$inout3 364 ret 365.size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4 366___ 367} 368sub aesni_generate6 { 369my $dir=shift; 370# As already mentioned it takes in $key and $rounds, which are *not* 371# preserved. $inout[0-5] is cipher/clear text... 372$code.=<<___; 373.type _aesni_${dir}rypt6,\@abi-omnipotent 374.align 16 375_aesni_${dir}rypt6: 376 $movkey ($key),$rndkey0 377 shr \$1,$rounds 378 $movkey 16($key),$rndkey1 379 lea 32($key),$key 380 xorps $rndkey0,$inout0 381 pxor $rndkey0,$inout1 382 aes${dir} $rndkey1,$inout0 383 pxor $rndkey0,$inout2 384 aes${dir} $rndkey1,$inout1 385 pxor $rndkey0,$inout3 386 aes${dir} $rndkey1,$inout2 387 pxor $rndkey0,$inout4 388 aes${dir} $rndkey1,$inout3 389 pxor $rndkey0,$inout5 390 dec $rounds 391 aes${dir} $rndkey1,$inout4 392 $movkey ($key),$rndkey0 393 aes${dir} $rndkey1,$inout5 394 jmp .L${dir}_loop6_enter 395.align 16 396.L${dir}_loop6: 397 aes${dir} $rndkey1,$inout0 398 aes${dir} $rndkey1,$inout1 399 dec $rounds 400 aes${dir} $rndkey1,$inout2 401 aes${dir} $rndkey1,$inout3 402 aes${dir} $rndkey1,$inout4 403 aes${dir} $rndkey1,$inout5 404.L${dir}_loop6_enter: # happens to be 16-byte aligned 405 $movkey 16($key),$rndkey1 406 aes${dir} $rndkey0,$inout0 407 aes${dir} $rndkey0,$inout1 408 lea 32($key),$key 409 aes${dir} $rndkey0,$inout2 410 aes${dir} $rndkey0,$inout3 411 aes${dir} $rndkey0,$inout4 412 aes${dir} $rndkey0,$inout5 413 $movkey ($key),$rndkey0 414 jnz .L${dir}_loop6 415 416 aes${dir} $rndkey1,$inout0 417 aes${dir} $rndkey1,$inout1 418 aes${dir} $rndkey1,$inout2 419 aes${dir} $rndkey1,$inout3 420 aes${dir} $rndkey1,$inout4 421 aes${dir} $rndkey1,$inout5 422 aes${dir}last $rndkey0,$inout0 423 aes${dir}last $rndkey0,$inout1 424 aes${dir}last $rndkey0,$inout2 425 aes${dir}last $rndkey0,$inout3 426 aes${dir}last $rndkey0,$inout4 427 aes${dir}last $rndkey0,$inout5 428 ret 429.size _aesni_${dir}rypt6,.-_aesni_${dir}rypt6 430___ 431} 432sub aesni_generate8 { 433my $dir=shift; 434# As already mentioned it takes in $key and $rounds, which are *not* 435# preserved. $inout[0-7] is cipher/clear text... 436$code.=<<___; 437.type _aesni_${dir}rypt8,\@abi-omnipotent 438.align 16 439_aesni_${dir}rypt8: 440 $movkey ($key),$rndkey0 441 shr \$1,$rounds 442 $movkey 16($key),$rndkey1 443 lea 32($key),$key 444 xorps $rndkey0,$inout0 445 xorps $rndkey0,$inout1 446 aes${dir} $rndkey1,$inout0 447 pxor $rndkey0,$inout2 448 aes${dir} $rndkey1,$inout1 449 pxor $rndkey0,$inout3 450 aes${dir} $rndkey1,$inout2 451 pxor $rndkey0,$inout4 452 aes${dir} $rndkey1,$inout3 453 pxor $rndkey0,$inout5 454 dec $rounds 455 aes${dir} $rndkey1,$inout4 456 pxor $rndkey0,$inout6 457 aes${dir} $rndkey1,$inout5 458 pxor $rndkey0,$inout7 459 $movkey ($key),$rndkey0 460 aes${dir} $rndkey1,$inout6 461 aes${dir} $rndkey1,$inout7 462 $movkey 16($key),$rndkey1 463 jmp .L${dir}_loop8_enter 464.align 16 465.L${dir}_loop8: 466 aes${dir} $rndkey1,$inout0 467 aes${dir} $rndkey1,$inout1 468 dec $rounds 469 aes${dir} $rndkey1,$inout2 470 aes${dir} $rndkey1,$inout3 471 aes${dir} $rndkey1,$inout4 472 aes${dir} $rndkey1,$inout5 473 aes${dir} $rndkey1,$inout6 474 aes${dir} $rndkey1,$inout7 475 $movkey 16($key),$rndkey1 476.L${dir}_loop8_enter: # happens to be 16-byte aligned 477 aes${dir} $rndkey0,$inout0 478 aes${dir} $rndkey0,$inout1 479 lea 32($key),$key 480 aes${dir} $rndkey0,$inout2 481 aes${dir} $rndkey0,$inout3 482 aes${dir} $rndkey0,$inout4 483 aes${dir} $rndkey0,$inout5 484 aes${dir} $rndkey0,$inout6 485 aes${dir} $rndkey0,$inout7 486 $movkey ($key),$rndkey0 487 jnz .L${dir}_loop8 488 489 aes${dir} $rndkey1,$inout0 490 aes${dir} $rndkey1,$inout1 491 aes${dir} $rndkey1,$inout2 492 aes${dir} $rndkey1,$inout3 493 aes${dir} $rndkey1,$inout4 494 aes${dir} $rndkey1,$inout5 495 aes${dir} $rndkey1,$inout6 496 aes${dir} $rndkey1,$inout7 497 aes${dir}last $rndkey0,$inout0 498 aes${dir}last $rndkey0,$inout1 499 aes${dir}last $rndkey0,$inout2 500 aes${dir}last $rndkey0,$inout3 501 aes${dir}last $rndkey0,$inout4 502 aes${dir}last $rndkey0,$inout5 503 aes${dir}last $rndkey0,$inout6 504 aes${dir}last $rndkey0,$inout7 505 ret 506.size _aesni_${dir}rypt8,.-_aesni_${dir}rypt8 507___ 508} 509&aesni_generate3("enc") if ($PREFIX eq "aesni"); 510&aesni_generate3("dec"); 511&aesni_generate4("enc") if ($PREFIX eq "aesni"); 512&aesni_generate4("dec"); 513&aesni_generate6("enc") if ($PREFIX eq "aesni"); 514&aesni_generate6("dec"); 515&aesni_generate8("enc") if ($PREFIX eq "aesni"); 516&aesni_generate8("dec"); 517 518if ($PREFIX eq "aesni") { 519######################################################################## 520# void aesni_ecb_encrypt (const void *in, void *out, 521# size_t length, const AES_KEY *key, 522# int enc); 523$code.=<<___; 524.globl aesni_ecb_encrypt 525.type aesni_ecb_encrypt,\@function,5 526.align 16 527aesni_ecb_encrypt: 528 and \$-16,$len 529 jz .Lecb_ret 530 531 mov 240($key),$rounds # key->rounds 532 $movkey ($key),$rndkey0 533 mov $key,$key_ # backup $key 534 mov $rounds,$rnds_ # backup $rounds 535 test %r8d,%r8d # 5th argument 536 jz .Lecb_decrypt 537#--------------------------- ECB ENCRYPT ------------------------------# 538 cmp \$0x80,$len 539 jb .Lecb_enc_tail 540 541 movdqu ($inp),$inout0 542 movdqu 0x10($inp),$inout1 543 movdqu 0x20($inp),$inout2 544 movdqu 0x30($inp),$inout3 545 movdqu 0x40($inp),$inout4 546 movdqu 0x50($inp),$inout5 547 movdqu 0x60($inp),$inout6 548 movdqu 0x70($inp),$inout7 549 lea 0x80($inp),$inp 550 sub \$0x80,$len 551 jmp .Lecb_enc_loop8_enter 552.align 16 553.Lecb_enc_loop8: 554 movups $inout0,($out) 555 mov $key_,$key # restore $key 556 movdqu ($inp),$inout0 557 mov $rnds_,$rounds # restore $rounds 558 movups $inout1,0x10($out) 559 movdqu 0x10($inp),$inout1 560 movups $inout2,0x20($out) 561 movdqu 0x20($inp),$inout2 562 movups $inout3,0x30($out) 563 movdqu 0x30($inp),$inout3 564 movups $inout4,0x40($out) 565 movdqu 0x40($inp),$inout4 566 movups $inout5,0x50($out) 567 movdqu 0x50($inp),$inout5 568 movups $inout6,0x60($out) 569 movdqu 0x60($inp),$inout6 570 movups $inout7,0x70($out) 571 lea 0x80($out),$out 572 movdqu 0x70($inp),$inout7 573 lea 0x80($inp),$inp 574.Lecb_enc_loop8_enter: 575 576 call _aesni_encrypt8 577 578 sub \$0x80,$len 579 jnc .Lecb_enc_loop8 580 581 movups $inout0,($out) 582 mov $key_,$key # restore $key 583 movups $inout1,0x10($out) 584 mov $rnds_,$rounds # restore $rounds 585 movups $inout2,0x20($out) 586 movups $inout3,0x30($out) 587 movups $inout4,0x40($out) 588 movups $inout5,0x50($out) 589 movups $inout6,0x60($out) 590 movups $inout7,0x70($out) 591 lea 0x80($out),$out 592 add \$0x80,$len 593 jz .Lecb_ret 594 595.Lecb_enc_tail: 596 movups ($inp),$inout0 597 cmp \$0x20,$len 598 jb .Lecb_enc_one 599 movups 0x10($inp),$inout1 600 je .Lecb_enc_two 601 movups 0x20($inp),$inout2 602 cmp \$0x40,$len 603 jb .Lecb_enc_three 604 movups 0x30($inp),$inout3 605 je .Lecb_enc_four 606 movups 0x40($inp),$inout4 607 cmp \$0x60,$len 608 jb .Lecb_enc_five 609 movups 0x50($inp),$inout5 610 je .Lecb_enc_six 611 movdqu 0x60($inp),$inout6 612 call _aesni_encrypt8 613 movups $inout0,($out) 614 movups $inout1,0x10($out) 615 movups $inout2,0x20($out) 616 movups $inout3,0x30($out) 617 movups $inout4,0x40($out) 618 movups $inout5,0x50($out) 619 movups $inout6,0x60($out) 620 jmp .Lecb_ret 621.align 16 622.Lecb_enc_one: 623___ 624 &aesni_generate1("enc",$key,$rounds); 625$code.=<<___; 626 movups $inout0,($out) 627 jmp .Lecb_ret 628.align 16 629.Lecb_enc_two: 630 xorps $inout2,$inout2 631 call _aesni_encrypt3 632 movups $inout0,($out) 633 movups $inout1,0x10($out) 634 jmp .Lecb_ret 635.align 16 636.Lecb_enc_three: 637 call _aesni_encrypt3 638 movups $inout0,($out) 639 movups $inout1,0x10($out) 640 movups $inout2,0x20($out) 641 jmp .Lecb_ret 642.align 16 643.Lecb_enc_four: 644 call _aesni_encrypt4 645 movups $inout0,($out) 646 movups $inout1,0x10($out) 647 movups $inout2,0x20($out) 648 movups $inout3,0x30($out) 649 jmp .Lecb_ret 650.align 16 651.Lecb_enc_five: 652 xorps $inout5,$inout5 653 call _aesni_encrypt6 654 movups $inout0,($out) 655 movups $inout1,0x10($out) 656 movups $inout2,0x20($out) 657 movups $inout3,0x30($out) 658 movups $inout4,0x40($out) 659 jmp .Lecb_ret 660.align 16 661.Lecb_enc_six: 662 call _aesni_encrypt6 663 movups $inout0,($out) 664 movups $inout1,0x10($out) 665 movups $inout2,0x20($out) 666 movups $inout3,0x30($out) 667 movups $inout4,0x40($out) 668 movups $inout5,0x50($out) 669 jmp .Lecb_ret 670 #--------------------------- ECB DECRYPT ------------------------------# 671.align 16 672.Lecb_decrypt: 673 cmp \$0x80,$len 674 jb .Lecb_dec_tail 675 676 movdqu ($inp),$inout0 677 movdqu 0x10($inp),$inout1 678 movdqu 0x20($inp),$inout2 679 movdqu 0x30($inp),$inout3 680 movdqu 0x40($inp),$inout4 681 movdqu 0x50($inp),$inout5 682 movdqu 0x60($inp),$inout6 683 movdqu 0x70($inp),$inout7 684 lea 0x80($inp),$inp 685 sub \$0x80,$len 686 jmp .Lecb_dec_loop8_enter 687.align 16 688.Lecb_dec_loop8: 689 movups $inout0,($out) 690 mov $key_,$key # restore $key 691 movdqu ($inp),$inout0 692 mov $rnds_,$rounds # restore $rounds 693 movups $inout1,0x10($out) 694 movdqu 0x10($inp),$inout1 695 movups $inout2,0x20($out) 696 movdqu 0x20($inp),$inout2 697 movups $inout3,0x30($out) 698 movdqu 0x30($inp),$inout3 699 movups $inout4,0x40($out) 700 movdqu 0x40($inp),$inout4 701 movups $inout5,0x50($out) 702 movdqu 0x50($inp),$inout5 703 movups $inout6,0x60($out) 704 movdqu 0x60($inp),$inout6 705 movups $inout7,0x70($out) 706 lea 0x80($out),$out 707 movdqu 0x70($inp),$inout7 708 lea 0x80($inp),$inp 709.Lecb_dec_loop8_enter: 710 711 call _aesni_decrypt8 712 713 $movkey ($key_),$rndkey0 714 sub \$0x80,$len 715 jnc .Lecb_dec_loop8 716 717 movups $inout0,($out) 718 mov $key_,$key # restore $key 719 movups $inout1,0x10($out) 720 mov $rnds_,$rounds # restore $rounds 721 movups $inout2,0x20($out) 722 movups $inout3,0x30($out) 723 movups $inout4,0x40($out) 724 movups $inout5,0x50($out) 725 movups $inout6,0x60($out) 726 movups $inout7,0x70($out) 727 lea 0x80($out),$out 728 add \$0x80,$len 729 jz .Lecb_ret 730 731.Lecb_dec_tail: 732 movups ($inp),$inout0 733 cmp \$0x20,$len 734 jb .Lecb_dec_one 735 movups 0x10($inp),$inout1 736 je .Lecb_dec_two 737 movups 0x20($inp),$inout2 738 cmp \$0x40,$len 739 jb .Lecb_dec_three 740 movups 0x30($inp),$inout3 741 je .Lecb_dec_four 742 movups 0x40($inp),$inout4 743 cmp \$0x60,$len 744 jb .Lecb_dec_five 745 movups 0x50($inp),$inout5 746 je .Lecb_dec_six 747 movups 0x60($inp),$inout6 748 $movkey ($key),$rndkey0 749 call _aesni_decrypt8 750 movups $inout0,($out) 751 movups $inout1,0x10($out) 752 movups $inout2,0x20($out) 753 movups $inout3,0x30($out) 754 movups $inout4,0x40($out) 755 movups $inout5,0x50($out) 756 movups $inout6,0x60($out) 757 jmp .Lecb_ret 758.align 16 759.Lecb_dec_one: 760___ 761 &aesni_generate1("dec",$key,$rounds); 762$code.=<<___; 763 movups $inout0,($out) 764 jmp .Lecb_ret 765.align 16 766.Lecb_dec_two: 767 xorps $inout2,$inout2 768 call _aesni_decrypt3 769 movups $inout0,($out) 770 movups $inout1,0x10($out) 771 jmp .Lecb_ret 772.align 16 773.Lecb_dec_three: 774 call _aesni_decrypt3 775 movups $inout0,($out) 776 movups $inout1,0x10($out) 777 movups $inout2,0x20($out) 778 jmp .Lecb_ret 779.align 16 780.Lecb_dec_four: 781 call _aesni_decrypt4 782 movups $inout0,($out) 783 movups $inout1,0x10($out) 784 movups $inout2,0x20($out) 785 movups $inout3,0x30($out) 786 jmp .Lecb_ret 787.align 16 788.Lecb_dec_five: 789 xorps $inout5,$inout5 790 call _aesni_decrypt6 791 movups $inout0,($out) 792 movups $inout1,0x10($out) 793 movups $inout2,0x20($out) 794 movups $inout3,0x30($out) 795 movups $inout4,0x40($out) 796 jmp .Lecb_ret 797.align 16 798.Lecb_dec_six: 799 call _aesni_decrypt6 800 movups $inout0,($out) 801 movups $inout1,0x10($out) 802 movups $inout2,0x20($out) 803 movups $inout3,0x30($out) 804 movups $inout4,0x40($out) 805 movups $inout5,0x50($out) 806 807.Lecb_ret: 808 ret 809.size aesni_ecb_encrypt,.-aesni_ecb_encrypt 810___ 811 812{ 813###################################################################### 814# void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out, 815# size_t blocks, const AES_KEY *key, 816# const char *ivec,char *cmac); 817# 818# Handles only complete blocks, operates on 64-bit counter and 819# does not update *ivec! Nor does it finalize CMAC value 820# (see engine/eng_aesni.c for details) 821# 822{ 823my $cmac="%r9"; # 6th argument 824 825my $increment="%xmm6"; 826my $bswap_mask="%xmm7"; 827 828$code.=<<___; 829.globl aesni_ccm64_encrypt_blocks 830.type aesni_ccm64_encrypt_blocks,\@function,6 831.align 16 832aesni_ccm64_encrypt_blocks: 833___ 834$code.=<<___ if ($win64); 835 lea -0x58(%rsp),%rsp 836 movaps %xmm6,(%rsp) 837 movaps %xmm7,0x10(%rsp) 838 movaps %xmm8,0x20(%rsp) 839 movaps %xmm9,0x30(%rsp) 840.Lccm64_enc_body: 841___ 842$code.=<<___; 843 mov 240($key),$rounds # key->rounds 844 movdqu ($ivp),$iv 845 movdqa .Lincrement64(%rip),$increment 846 movdqa .Lbswap_mask(%rip),$bswap_mask 847 848 shr \$1,$rounds 849 lea 0($key),$key_ 850 movdqu ($cmac),$inout1 851 movdqa $iv,$inout0 852 mov $rounds,$rnds_ 853 pshufb $bswap_mask,$iv 854 jmp .Lccm64_enc_outer 855.align 16 856.Lccm64_enc_outer: 857 $movkey ($key_),$rndkey0 858 mov $rnds_,$rounds 859 movups ($inp),$in0 # load inp 860 861 xorps $rndkey0,$inout0 # counter 862 $movkey 16($key_),$rndkey1 863 xorps $in0,$rndkey0 864 lea 32($key_),$key 865 xorps $rndkey0,$inout1 # cmac^=inp 866 $movkey ($key),$rndkey0 867 868.Lccm64_enc2_loop: 869 aesenc $rndkey1,$inout0 870 dec $rounds 871 aesenc $rndkey1,$inout1 872 $movkey 16($key),$rndkey1 873 aesenc $rndkey0,$inout0 874 lea 32($key),$key 875 aesenc $rndkey0,$inout1 876 $movkey 0($key),$rndkey0 877 jnz .Lccm64_enc2_loop 878 aesenc $rndkey1,$inout0 879 aesenc $rndkey1,$inout1 880 paddq $increment,$iv 881 aesenclast $rndkey0,$inout0 882 aesenclast $rndkey0,$inout1 883 884 dec $len 885 lea 16($inp),$inp 886 xorps $inout0,$in0 # inp ^= E(iv) 887 movdqa $iv,$inout0 888 movups $in0,($out) # save output 889 lea 16($out),$out 890 pshufb $bswap_mask,$inout0 891 jnz .Lccm64_enc_outer 892 893 movups $inout1,($cmac) 894___ 895$code.=<<___ if ($win64); 896 movaps (%rsp),%xmm6 897 movaps 0x10(%rsp),%xmm7 898 movaps 0x20(%rsp),%xmm8 899 movaps 0x30(%rsp),%xmm9 900 lea 0x58(%rsp),%rsp 901.Lccm64_enc_ret: 902___ 903$code.=<<___; 904 ret 905.size aesni_ccm64_encrypt_blocks,.-aesni_ccm64_encrypt_blocks 906___ 907###################################################################### 908$code.=<<___; 909.globl aesni_ccm64_decrypt_blocks 910.type aesni_ccm64_decrypt_blocks,\@function,6 911.align 16 912aesni_ccm64_decrypt_blocks: 913___ 914$code.=<<___ if ($win64); 915 lea -0x58(%rsp),%rsp 916 movaps %xmm6,(%rsp) 917 movaps %xmm7,0x10(%rsp) 918 movaps %xmm8,0x20(%rsp) 919 movaps %xmm9,0x30(%rsp) 920.Lccm64_dec_body: 921___ 922$code.=<<___; 923 mov 240($key),$rounds # key->rounds 924 movups ($ivp),$iv 925 movdqu ($cmac),$inout1 926 movdqa .Lincrement64(%rip),$increment 927 movdqa .Lbswap_mask(%rip),$bswap_mask 928 929 movaps $iv,$inout0 930 mov $rounds,$rnds_ 931 mov $key,$key_ 932 pshufb $bswap_mask,$iv 933___ 934 &aesni_generate1("enc",$key,$rounds); 935$code.=<<___; 936 movups ($inp),$in0 # load inp 937 paddq $increment,$iv 938 lea 16($inp),$inp 939 jmp .Lccm64_dec_outer 940.align 16 941.Lccm64_dec_outer: 942 xorps $inout0,$in0 # inp ^= E(iv) 943 movdqa $iv,$inout0 944 mov $rnds_,$rounds 945 movups $in0,($out) # save output 946 lea 16($out),$out 947 pshufb $bswap_mask,$inout0 948 949 sub \$1,$len 950 jz .Lccm64_dec_break 951 952 $movkey ($key_),$rndkey0 953 shr \$1,$rounds 954 $movkey 16($key_),$rndkey1 955 xorps $rndkey0,$in0 956 lea 32($key_),$key 957 xorps $rndkey0,$inout0 958 xorps $in0,$inout1 # cmac^=out 959 $movkey ($key),$rndkey0 960 961.Lccm64_dec2_loop: 962 aesenc $rndkey1,$inout0 963 dec $rounds 964 aesenc $rndkey1,$inout1 965 $movkey 16($key),$rndkey1 966 aesenc $rndkey0,$inout0 967 lea 32($key),$key 968 aesenc $rndkey0,$inout1 969 $movkey 0($key),$rndkey0 970 jnz .Lccm64_dec2_loop 971 movups ($inp),$in0 # load inp 972 paddq $increment,$iv 973 aesenc $rndkey1,$inout0 974 aesenc $rndkey1,$inout1 975 lea 16($inp),$inp 976 aesenclast $rndkey0,$inout0 977 aesenclast $rndkey0,$inout1 978 jmp .Lccm64_dec_outer 979 980.align 16 981.Lccm64_dec_break: 982 #xorps $in0,$inout1 # cmac^=out 983___ 984 &aesni_generate1("enc",$key_,$rounds,$inout1,$in0); 985$code.=<<___; 986 movups $inout1,($cmac) 987___ 988$code.=<<___ if ($win64); 989 movaps (%rsp),%xmm6 990 movaps 0x10(%rsp),%xmm7 991 movaps 0x20(%rsp),%xmm8 992 movaps 0x30(%rsp),%xmm9 993 lea 0x58(%rsp),%rsp 994.Lccm64_dec_ret: 995___ 996$code.=<<___; 997 ret 998.size aesni_ccm64_decrypt_blocks,.-aesni_ccm64_decrypt_blocks 999___ 1000} 1001###################################################################### 1002# void aesni_ctr32_encrypt_blocks (const void *in, void *out, 1003# size_t blocks, const AES_KEY *key, 1004# const char *ivec); 1005# 1006# Handles only complete blocks, operates on 32-bit counter and 1007# does not update *ivec! (see engine/eng_aesni.c for details) 1008# 1009{ 1010my $reserved = $win64?0:-0x28; 1011my ($in0,$in1,$in2,$in3)=map("%xmm$_",(8..11)); 1012my ($iv0,$iv1,$ivec)=("%xmm12","%xmm13","%xmm14"); 1013my $bswap_mask="%xmm15"; 1014 1015$code.=<<___; 1016.globl aesni_ctr32_encrypt_blocks 1017.type aesni_ctr32_encrypt_blocks,\@function,5 1018.align 16 1019aesni_ctr32_encrypt_blocks: 1020___ 1021$code.=<<___ if ($win64); 1022 lea -0xc8(%rsp),%rsp 1023 movaps %xmm6,0x20(%rsp) 1024 movaps %xmm7,0x30(%rsp) 1025 movaps %xmm8,0x40(%rsp) 1026 movaps %xmm9,0x50(%rsp) 1027 movaps %xmm10,0x60(%rsp) 1028 movaps %xmm11,0x70(%rsp) 1029 movaps %xmm12,0x80(%rsp) 1030 movaps %xmm13,0x90(%rsp) 1031 movaps %xmm14,0xa0(%rsp) 1032 movaps %xmm15,0xb0(%rsp) 1033.Lctr32_body: 1034___ 1035$code.=<<___; 1036 cmp \$1,$len 1037 je .Lctr32_one_shortcut 1038 1039 movdqu ($ivp),$ivec 1040 movdqa .Lbswap_mask(%rip),$bswap_mask 1041 xor $rounds,$rounds 1042 pextrd \$3,$ivec,$rnds_ # pull 32-bit counter 1043 pinsrd \$3,$rounds,$ivec # wipe 32-bit counter 1044 1045 mov 240($key),$rounds # key->rounds 1046 bswap $rnds_ 1047 pxor $iv0,$iv0 # vector of 3 32-bit counters 1048 pxor $iv1,$iv1 # vector of 3 32-bit counters 1049 pinsrd \$0,$rnds_,$iv0 1050 lea 3($rnds_),$key_ 1051 pinsrd \$0,$key_,$iv1 1052 inc $rnds_ 1053 pinsrd \$1,$rnds_,$iv0 1054 inc $key_ 1055 pinsrd \$1,$key_,$iv1 1056 inc $rnds_ 1057 pinsrd \$2,$rnds_,$iv0 1058 inc $key_ 1059 pinsrd \$2,$key_,$iv1 1060 movdqa $iv0,$reserved(%rsp) 1061 pshufb $bswap_mask,$iv0 1062 movdqa $iv1,`$reserved+0x10`(%rsp) 1063 pshufb $bswap_mask,$iv1 1064 1065 pshufd \$`3<<6`,$iv0,$inout0 # place counter to upper dword 1066 pshufd \$`2<<6`,$iv0,$inout1 1067 pshufd \$`1<<6`,$iv0,$inout2 1068 cmp \$6,$len 1069 jb .Lctr32_tail 1070 shr \$1,$rounds 1071 mov $key,$key_ # backup $key 1072 mov $rounds,$rnds_ # backup $rounds 1073 sub \$6,$len 1074 jmp .Lctr32_loop6 1075 1076.align 16 1077.Lctr32_loop6: 1078 pshufd \$`3<<6`,$iv1,$inout3 1079 por $ivec,$inout0 # merge counter-less ivec 1080 $movkey ($key_),$rndkey0 1081 pshufd \$`2<<6`,$iv1,$inout4 1082 por $ivec,$inout1 1083 $movkey 16($key_),$rndkey1 1084 pshufd \$`1<<6`,$iv1,$inout5 1085 por $ivec,$inout2 1086 por $ivec,$inout3 1087 xorps $rndkey0,$inout0 1088 por $ivec,$inout4 1089 por $ivec,$inout5 1090 1091 # inline _aesni_encrypt6 and interleave last rounds 1092 # with own code... 1093 1094 pxor $rndkey0,$inout1 1095 aesenc $rndkey1,$inout0 1096 lea 32($key_),$key 1097 pxor $rndkey0,$inout2 1098 aesenc $rndkey1,$inout1 1099 movdqa .Lincrement32(%rip),$iv1 1100 pxor $rndkey0,$inout3 1101 aesenc $rndkey1,$inout2 1102 movdqa $reserved(%rsp),$iv0 1103 pxor $rndkey0,$inout4 1104 aesenc $rndkey1,$inout3 1105 pxor $rndkey0,$inout5 1106 $movkey ($key),$rndkey0 1107 dec $rounds 1108 aesenc $rndkey1,$inout4 1109 aesenc $rndkey1,$inout5 1110 jmp .Lctr32_enc_loop6_enter 1111.align 16 1112.Lctr32_enc_loop6: 1113 aesenc $rndkey1,$inout0 1114 aesenc $rndkey1,$inout1 1115 dec $rounds 1116 aesenc $rndkey1,$inout2 1117 aesenc $rndkey1,$inout3 1118 aesenc $rndkey1,$inout4 1119 aesenc $rndkey1,$inout5 1120.Lctr32_enc_loop6_enter: 1121 $movkey 16($key),$rndkey1 1122 aesenc $rndkey0,$inout0 1123 aesenc $rndkey0,$inout1 1124 lea 32($key),$key 1125 aesenc $rndkey0,$inout2 1126 aesenc $rndkey0,$inout3 1127 aesenc $rndkey0,$inout4 1128 aesenc $rndkey0,$inout5 1129 $movkey ($key),$rndkey0 1130 jnz .Lctr32_enc_loop6 1131 1132 aesenc $rndkey1,$inout0 1133 paddd $iv1,$iv0 # increment counter vector 1134 aesenc $rndkey1,$inout1 1135 paddd `$reserved+0x10`(%rsp),$iv1 1136 aesenc $rndkey1,$inout2 1137 movdqa $iv0,$reserved(%rsp) # save counter vector 1138 aesenc $rndkey1,$inout3 1139 movdqa $iv1,`$reserved+0x10`(%rsp) 1140 aesenc $rndkey1,$inout4 1141 pshufb $bswap_mask,$iv0 # byte swap 1142 aesenc $rndkey1,$inout5 1143 pshufb $bswap_mask,$iv1 1144 1145 aesenclast $rndkey0,$inout0 1146 movups ($inp),$in0 # load input 1147 aesenclast $rndkey0,$inout1 1148 movups 0x10($inp),$in1 1149 aesenclast $rndkey0,$inout2 1150 movups 0x20($inp),$in2 1151 aesenclast $rndkey0,$inout3 1152 movups 0x30($inp),$in3 1153 aesenclast $rndkey0,$inout4 1154 movups 0x40($inp),$rndkey1 1155 aesenclast $rndkey0,$inout5 1156 movups 0x50($inp),$rndkey0 1157 lea 0x60($inp),$inp 1158 1159 xorps $inout0,$in0 # xor 1160 pshufd \$`3<<6`,$iv0,$inout0 1161 xorps $inout1,$in1 1162 pshufd \$`2<<6`,$iv0,$inout1 1163 movups $in0,($out) # store output 1164 xorps $inout2,$in2 1165 pshufd \$`1<<6`,$iv0,$inout2 1166 movups $in1,0x10($out) 1167 xorps $inout3,$in3 1168 movups $in2,0x20($out) 1169 xorps $inout4,$rndkey1 1170 movups $in3,0x30($out) 1171 xorps $inout5,$rndkey0 1172 movups $rndkey1,0x40($out) 1173 movups $rndkey0,0x50($out) 1174 lea 0x60($out),$out 1175 mov $rnds_,$rounds 1176 sub \$6,$len 1177 jnc .Lctr32_loop6 1178 1179 add \$6,$len 1180 jz .Lctr32_done 1181 mov $key_,$key # restore $key 1182 lea 1($rounds,$rounds),$rounds # restore original value 1183 1184.Lctr32_tail: 1185 por $ivec,$inout0 1186 movups ($inp),$in0 1187 cmp \$2,$len 1188 jb .Lctr32_one 1189 1190 por $ivec,$inout1 1191 movups 0x10($inp),$in1 1192 je .Lctr32_two 1193 1194 pshufd \$`3<<6`,$iv1,$inout3 1195 por $ivec,$inout2 1196 movups 0x20($inp),$in2 1197 cmp \$4,$len 1198 jb .Lctr32_three 1199 1200 pshufd \$`2<<6`,$iv1,$inout4 1201 por $ivec,$inout3 1202 movups 0x30($inp),$in3 1203 je .Lctr32_four 1204 1205 por $ivec,$inout4 1206 xorps $inout5,$inout5 1207 1208 call _aesni_encrypt6 1209 1210 movups 0x40($inp),$rndkey1 1211 xorps $inout0,$in0 1212 xorps $inout1,$in1 1213 movups $in0,($out) 1214 xorps $inout2,$in2 1215 movups $in1,0x10($out) 1216 xorps $inout3,$in3 1217 movups $in2,0x20($out) 1218 xorps $inout4,$rndkey1 1219 movups $in3,0x30($out) 1220 movups $rndkey1,0x40($out) 1221 jmp .Lctr32_done 1222 1223.align 16 1224.Lctr32_one_shortcut: 1225 movups ($ivp),$inout0 1226 movups ($inp),$in0 1227 mov 240($key),$rounds # key->rounds 1228.Lctr32_one: 1229___ 1230 &aesni_generate1("enc",$key,$rounds); 1231$code.=<<___; 1232 xorps $inout0,$in0 1233 movups $in0,($out) 1234 jmp .Lctr32_done 1235 1236.align 16 1237.Lctr32_two: 1238 xorps $inout2,$inout2 1239 call _aesni_encrypt3 1240 xorps $inout0,$in0 1241 xorps $inout1,$in1 1242 movups $in0,($out) 1243 movups $in1,0x10($out) 1244 jmp .Lctr32_done 1245 1246.align 16 1247.Lctr32_three: 1248 call _aesni_encrypt3 1249 xorps $inout0,$in0 1250 xorps $inout1,$in1 1251 movups $in0,($out) 1252 xorps $inout2,$in2 1253 movups $in1,0x10($out) 1254 movups $in2,0x20($out) 1255 jmp .Lctr32_done 1256 1257.align 16 1258.Lctr32_four: 1259 call _aesni_encrypt4 1260 xorps $inout0,$in0 1261 xorps $inout1,$in1 1262 movups $in0,($out) 1263 xorps $inout2,$in2 1264 movups $in1,0x10($out) 1265 xorps $inout3,$in3 1266 movups $in2,0x20($out) 1267 movups $in3,0x30($out) 1268 1269.Lctr32_done: 1270___ 1271$code.=<<___ if ($win64); 1272 movaps 0x20(%rsp),%xmm6 1273 movaps 0x30(%rsp),%xmm7 1274 movaps 0x40(%rsp),%xmm8 1275 movaps 0x50(%rsp),%xmm9 1276 movaps 0x60(%rsp),%xmm10 1277 movaps 0x70(%rsp),%xmm11 1278 movaps 0x80(%rsp),%xmm12 1279 movaps 0x90(%rsp),%xmm13 1280 movaps 0xa0(%rsp),%xmm14 1281 movaps 0xb0(%rsp),%xmm15 1282 lea 0xc8(%rsp),%rsp 1283.Lctr32_ret: 1284___ 1285$code.=<<___; 1286 ret 1287.size aesni_ctr32_encrypt_blocks,.-aesni_ctr32_encrypt_blocks 1288___ 1289} 1290 1291###################################################################### 1292# void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len, 1293# const AES_KEY *key1, const AES_KEY *key2 1294# const unsigned char iv[16]); 1295# 1296{ 1297my @tweak=map("%xmm$_",(10..15)); 1298my ($twmask,$twres,$twtmp)=("%xmm8","%xmm9",@tweak[4]); 1299my ($key2,$ivp,$len_)=("%r8","%r9","%r9"); 1300my $frame_size = 0x68 + ($win64?160:0); 1301 1302$code.=<<___; 1303.globl aesni_xts_encrypt 1304.type aesni_xts_encrypt,\@function,6 1305.align 16 1306aesni_xts_encrypt: 1307 lea -$frame_size(%rsp),%rsp 1308___ 1309$code.=<<___ if ($win64); 1310 movaps %xmm6,0x60(%rsp) 1311 movaps %xmm7,0x70(%rsp) 1312 movaps %xmm8,0x80(%rsp) 1313 movaps %xmm9,0x90(%rsp) 1314 movaps %xmm10,0xa0(%rsp) 1315 movaps %xmm11,0xb0(%rsp) 1316 movaps %xmm12,0xc0(%rsp) 1317 movaps %xmm13,0xd0(%rsp) 1318 movaps %xmm14,0xe0(%rsp) 1319 movaps %xmm15,0xf0(%rsp) 1320.Lxts_enc_body: 1321___ 1322$code.=<<___; 1323 movups ($ivp),@tweak[5] # load clear-text tweak 1324 mov 240(%r8),$rounds # key2->rounds 1325 mov 240($key),$rnds_ # key1->rounds 1326___ 1327 # generate the tweak 1328 &aesni_generate1("enc",$key2,$rounds,@tweak[5]); 1329$code.=<<___; 1330 mov $key,$key_ # backup $key 1331 mov $rnds_,$rounds # backup $rounds 1332 mov $len,$len_ # backup $len 1333 and \$-16,$len 1334 1335 movdqa .Lxts_magic(%rip),$twmask 1336 pxor $twtmp,$twtmp 1337 pcmpgtd @tweak[5],$twtmp # broadcast upper bits 1338___ 1339 for ($i=0;$i<4;$i++) { 1340 $code.=<<___; 1341 pshufd \$0x13,$twtmp,$twres 1342 pxor $twtmp,$twtmp 1343 movdqa @tweak[5],@tweak[$i] 1344 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1345 pand $twmask,$twres # isolate carry and residue 1346 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1347 pxor $twres,@tweak[5] 1348___ 1349 } 1350$code.=<<___; 1351 sub \$16*6,$len 1352 jc .Lxts_enc_short 1353 1354 shr \$1,$rounds 1355 sub \$1,$rounds 1356 mov $rounds,$rnds_ 1357 jmp .Lxts_enc_grandloop 1358 1359.align 16 1360.Lxts_enc_grandloop: 1361 pshufd \$0x13,$twtmp,$twres 1362 movdqa @tweak[5],@tweak[4] 1363 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1364 movdqu `16*0`($inp),$inout0 # load input 1365 pand $twmask,$twres # isolate carry and residue 1366 movdqu `16*1`($inp),$inout1 1367 pxor $twres,@tweak[5] 1368 1369 movdqu `16*2`($inp),$inout2 1370 pxor @tweak[0],$inout0 # input^=tweak 1371 movdqu `16*3`($inp),$inout3 1372 pxor @tweak[1],$inout1 1373 movdqu `16*4`($inp),$inout4 1374 pxor @tweak[2],$inout2 1375 movdqu `16*5`($inp),$inout5 1376 lea `16*6`($inp),$inp 1377 pxor @tweak[3],$inout3 1378 $movkey ($key_),$rndkey0 1379 pxor @tweak[4],$inout4 1380 pxor @tweak[5],$inout5 1381 1382 # inline _aesni_encrypt6 and interleave first and last rounds 1383 # with own code... 1384 $movkey 16($key_),$rndkey1 1385 pxor $rndkey0,$inout0 1386 pxor $rndkey0,$inout1 1387 movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks 1388 aesenc $rndkey1,$inout0 1389 lea 32($key_),$key 1390 pxor $rndkey0,$inout2 1391 movdqa @tweak[1],`16*1`(%rsp) 1392 aesenc $rndkey1,$inout1 1393 pxor $rndkey0,$inout3 1394 movdqa @tweak[2],`16*2`(%rsp) 1395 aesenc $rndkey1,$inout2 1396 pxor $rndkey0,$inout4 1397 movdqa @tweak[3],`16*3`(%rsp) 1398 aesenc $rndkey1,$inout3 1399 pxor $rndkey0,$inout5 1400 $movkey ($key),$rndkey0 1401 dec $rounds 1402 movdqa @tweak[4],`16*4`(%rsp) 1403 aesenc $rndkey1,$inout4 1404 movdqa @tweak[5],`16*5`(%rsp) 1405 aesenc $rndkey1,$inout5 1406 pxor $twtmp,$twtmp 1407 pcmpgtd @tweak[5],$twtmp 1408 jmp .Lxts_enc_loop6_enter 1409 1410.align 16 1411.Lxts_enc_loop6: 1412 aesenc $rndkey1,$inout0 1413 aesenc $rndkey1,$inout1 1414 dec $rounds 1415 aesenc $rndkey1,$inout2 1416 aesenc $rndkey1,$inout3 1417 aesenc $rndkey1,$inout4 1418 aesenc $rndkey1,$inout5 1419.Lxts_enc_loop6_enter: 1420 $movkey 16($key),$rndkey1 1421 aesenc $rndkey0,$inout0 1422 aesenc $rndkey0,$inout1 1423 lea 32($key),$key 1424 aesenc $rndkey0,$inout2 1425 aesenc $rndkey0,$inout3 1426 aesenc $rndkey0,$inout4 1427 aesenc $rndkey0,$inout5 1428 $movkey ($key),$rndkey0 1429 jnz .Lxts_enc_loop6 1430 1431 pshufd \$0x13,$twtmp,$twres 1432 pxor $twtmp,$twtmp 1433 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1434 aesenc $rndkey1,$inout0 1435 pand $twmask,$twres # isolate carry and residue 1436 aesenc $rndkey1,$inout1 1437 pcmpgtd @tweak[5],$twtmp # broadcast upper bits 1438 aesenc $rndkey1,$inout2 1439 pxor $twres,@tweak[5] 1440 aesenc $rndkey1,$inout3 1441 aesenc $rndkey1,$inout4 1442 aesenc $rndkey1,$inout5 1443 $movkey 16($key),$rndkey1 1444 1445 pshufd \$0x13,$twtmp,$twres 1446 pxor $twtmp,$twtmp 1447 movdqa @tweak[5],@tweak[0] 1448 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1449 aesenc $rndkey0,$inout0 1450 pand $twmask,$twres # isolate carry and residue 1451 aesenc $rndkey0,$inout1 1452 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1453 aesenc $rndkey0,$inout2 1454 pxor $twres,@tweak[5] 1455 aesenc $rndkey0,$inout3 1456 aesenc $rndkey0,$inout4 1457 aesenc $rndkey0,$inout5 1458 $movkey 32($key),$rndkey0 1459 1460 pshufd \$0x13,$twtmp,$twres 1461 pxor $twtmp,$twtmp 1462 movdqa @tweak[5],@tweak[1] 1463 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1464 aesenc $rndkey1,$inout0 1465 pand $twmask,$twres # isolate carry and residue 1466 aesenc $rndkey1,$inout1 1467 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1468 aesenc $rndkey1,$inout2 1469 pxor $twres,@tweak[5] 1470 aesenc $rndkey1,$inout3 1471 aesenc $rndkey1,$inout4 1472 aesenc $rndkey1,$inout5 1473 1474 pshufd \$0x13,$twtmp,$twres 1475 pxor $twtmp,$twtmp 1476 movdqa @tweak[5],@tweak[2] 1477 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1478 aesenclast $rndkey0,$inout0 1479 pand $twmask,$twres # isolate carry and residue 1480 aesenclast $rndkey0,$inout1 1481 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1482 aesenclast $rndkey0,$inout2 1483 pxor $twres,@tweak[5] 1484 aesenclast $rndkey0,$inout3 1485 aesenclast $rndkey0,$inout4 1486 aesenclast $rndkey0,$inout5 1487 1488 pshufd \$0x13,$twtmp,$twres 1489 pxor $twtmp,$twtmp 1490 movdqa @tweak[5],@tweak[3] 1491 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1492 xorps `16*0`(%rsp),$inout0 # output^=tweak 1493 pand $twmask,$twres # isolate carry and residue 1494 xorps `16*1`(%rsp),$inout1 1495 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1496 pxor $twres,@tweak[5] 1497 1498 xorps `16*2`(%rsp),$inout2 1499 movups $inout0,`16*0`($out) # write output 1500 xorps `16*3`(%rsp),$inout3 1501 movups $inout1,`16*1`($out) 1502 xorps `16*4`(%rsp),$inout4 1503 movups $inout2,`16*2`($out) 1504 xorps `16*5`(%rsp),$inout5 1505 movups $inout3,`16*3`($out) 1506 mov $rnds_,$rounds # restore $rounds 1507 movups $inout4,`16*4`($out) 1508 movups $inout5,`16*5`($out) 1509 lea `16*6`($out),$out 1510 sub \$16*6,$len 1511 jnc .Lxts_enc_grandloop 1512 1513 lea 3($rounds,$rounds),$rounds # restore original value 1514 mov $key_,$key # restore $key 1515 mov $rounds,$rnds_ # backup $rounds 1516 1517.Lxts_enc_short: 1518 add \$16*6,$len 1519 jz .Lxts_enc_done 1520 1521 cmp \$0x20,$len 1522 jb .Lxts_enc_one 1523 je .Lxts_enc_two 1524 1525 cmp \$0x40,$len 1526 jb .Lxts_enc_three 1527 je .Lxts_enc_four 1528 1529 pshufd \$0x13,$twtmp,$twres 1530 movdqa @tweak[5],@tweak[4] 1531 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1532 movdqu ($inp),$inout0 1533 pand $twmask,$twres # isolate carry and residue 1534 movdqu 16*1($inp),$inout1 1535 pxor $twres,@tweak[5] 1536 1537 movdqu 16*2($inp),$inout2 1538 pxor @tweak[0],$inout0 1539 movdqu 16*3($inp),$inout3 1540 pxor @tweak[1],$inout1 1541 movdqu 16*4($inp),$inout4 1542 lea 16*5($inp),$inp 1543 pxor @tweak[2],$inout2 1544 pxor @tweak[3],$inout3 1545 pxor @tweak[4],$inout4 1546 1547 call _aesni_encrypt6 1548 1549 xorps @tweak[0],$inout0 1550 movdqa @tweak[5],@tweak[0] 1551 xorps @tweak[1],$inout1 1552 xorps @tweak[2],$inout2 1553 movdqu $inout0,($out) 1554 xorps @tweak[3],$inout3 1555 movdqu $inout1,16*1($out) 1556 xorps @tweak[4],$inout4 1557 movdqu $inout2,16*2($out) 1558 movdqu $inout3,16*3($out) 1559 movdqu $inout4,16*4($out) 1560 lea 16*5($out),$out 1561 jmp .Lxts_enc_done 1562 1563.align 16 1564.Lxts_enc_one: 1565 movups ($inp),$inout0 1566 lea 16*1($inp),$inp 1567 xorps @tweak[0],$inout0 1568___ 1569 &aesni_generate1("enc",$key,$rounds); 1570$code.=<<___; 1571 xorps @tweak[0],$inout0 1572 movdqa @tweak[1],@tweak[0] 1573 movups $inout0,($out) 1574 lea 16*1($out),$out 1575 jmp .Lxts_enc_done 1576 1577.align 16 1578.Lxts_enc_two: 1579 movups ($inp),$inout0 1580 movups 16($inp),$inout1 1581 lea 32($inp),$inp 1582 xorps @tweak[0],$inout0 1583 xorps @tweak[1],$inout1 1584 1585 call _aesni_encrypt3 1586 1587 xorps @tweak[0],$inout0 1588 movdqa @tweak[2],@tweak[0] 1589 xorps @tweak[1],$inout1 1590 movups $inout0,($out) 1591 movups $inout1,16*1($out) 1592 lea 16*2($out),$out 1593 jmp .Lxts_enc_done 1594 1595.align 16 1596.Lxts_enc_three: 1597 movups ($inp),$inout0 1598 movups 16*1($inp),$inout1 1599 movups 16*2($inp),$inout2 1600 lea 16*3($inp),$inp 1601 xorps @tweak[0],$inout0 1602 xorps @tweak[1],$inout1 1603 xorps @tweak[2],$inout2 1604 1605 call _aesni_encrypt3 1606 1607 xorps @tweak[0],$inout0 1608 movdqa @tweak[3],@tweak[0] 1609 xorps @tweak[1],$inout1 1610 xorps @tweak[2],$inout2 1611 movups $inout0,($out) 1612 movups $inout1,16*1($out) 1613 movups $inout2,16*2($out) 1614 lea 16*3($out),$out 1615 jmp .Lxts_enc_done 1616 1617.align 16 1618.Lxts_enc_four: 1619 movups ($inp),$inout0 1620 movups 16*1($inp),$inout1 1621 movups 16*2($inp),$inout2 1622 xorps @tweak[0],$inout0 1623 movups 16*3($inp),$inout3 1624 lea 16*4($inp),$inp 1625 xorps @tweak[1],$inout1 1626 xorps @tweak[2],$inout2 1627 xorps @tweak[3],$inout3 1628 1629 call _aesni_encrypt4 1630 1631 xorps @tweak[0],$inout0 1632 movdqa @tweak[5],@tweak[0] 1633 xorps @tweak[1],$inout1 1634 xorps @tweak[2],$inout2 1635 movups $inout0,($out) 1636 xorps @tweak[3],$inout3 1637 movups $inout1,16*1($out) 1638 movups $inout2,16*2($out) 1639 movups $inout3,16*3($out) 1640 lea 16*4($out),$out 1641 jmp .Lxts_enc_done 1642 1643.align 16 1644.Lxts_enc_done: 1645 and \$15,$len_ 1646 jz .Lxts_enc_ret 1647 mov $len_,$len 1648 1649.Lxts_enc_steal: 1650 movzb ($inp),%eax # borrow $rounds ... 1651 movzb -16($out),%ecx # ... and $key 1652 lea 1($inp),$inp 1653 mov %al,-16($out) 1654 mov %cl,0($out) 1655 lea 1($out),$out 1656 sub \$1,$len 1657 jnz .Lxts_enc_steal 1658 1659 sub $len_,$out # rewind $out 1660 mov $key_,$key # restore $key 1661 mov $rnds_,$rounds # restore $rounds 1662 1663 movups -16($out),$inout0 1664 xorps @tweak[0],$inout0 1665___ 1666 &aesni_generate1("enc",$key,$rounds); 1667$code.=<<___; 1668 xorps @tweak[0],$inout0 1669 movups $inout0,-16($out) 1670 1671.Lxts_enc_ret: 1672___ 1673$code.=<<___ if ($win64); 1674 movaps 0x60(%rsp),%xmm6 1675 movaps 0x70(%rsp),%xmm7 1676 movaps 0x80(%rsp),%xmm8 1677 movaps 0x90(%rsp),%xmm9 1678 movaps 0xa0(%rsp),%xmm10 1679 movaps 0xb0(%rsp),%xmm11 1680 movaps 0xc0(%rsp),%xmm12 1681 movaps 0xd0(%rsp),%xmm13 1682 movaps 0xe0(%rsp),%xmm14 1683 movaps 0xf0(%rsp),%xmm15 1684___ 1685$code.=<<___; 1686 lea $frame_size(%rsp),%rsp 1687.Lxts_enc_epilogue: 1688 ret 1689.size aesni_xts_encrypt,.-aesni_xts_encrypt 1690___ 1691 1692$code.=<<___; 1693.globl aesni_xts_decrypt 1694.type aesni_xts_decrypt,\@function,6 1695.align 16 1696aesni_xts_decrypt: 1697 lea -$frame_size(%rsp),%rsp 1698___ 1699$code.=<<___ if ($win64); 1700 movaps %xmm6,0x60(%rsp) 1701 movaps %xmm7,0x70(%rsp) 1702 movaps %xmm8,0x80(%rsp) 1703 movaps %xmm9,0x90(%rsp) 1704 movaps %xmm10,0xa0(%rsp) 1705 movaps %xmm11,0xb0(%rsp) 1706 movaps %xmm12,0xc0(%rsp) 1707 movaps %xmm13,0xd0(%rsp) 1708 movaps %xmm14,0xe0(%rsp) 1709 movaps %xmm15,0xf0(%rsp) 1710.Lxts_dec_body: 1711___ 1712$code.=<<___; 1713 movups ($ivp),@tweak[5] # load clear-text tweak 1714 mov 240($key2),$rounds # key2->rounds 1715 mov 240($key),$rnds_ # key1->rounds 1716___ 1717 # generate the tweak 1718 &aesni_generate1("enc",$key2,$rounds,@tweak[5]); 1719$code.=<<___; 1720 xor %eax,%eax # if ($len%16) len-=16; 1721 test \$15,$len 1722 setnz %al 1723 shl \$4,%rax 1724 sub %rax,$len 1725 1726 mov $key,$key_ # backup $key 1727 mov $rnds_,$rounds # backup $rounds 1728 mov $len,$len_ # backup $len 1729 and \$-16,$len 1730 1731 movdqa .Lxts_magic(%rip),$twmask 1732 pxor $twtmp,$twtmp 1733 pcmpgtd @tweak[5],$twtmp # broadcast upper bits 1734___ 1735 for ($i=0;$i<4;$i++) { 1736 $code.=<<___; 1737 pshufd \$0x13,$twtmp,$twres 1738 pxor $twtmp,$twtmp 1739 movdqa @tweak[5],@tweak[$i] 1740 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1741 pand $twmask,$twres # isolate carry and residue 1742 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1743 pxor $twres,@tweak[5] 1744___ 1745 } 1746$code.=<<___; 1747 sub \$16*6,$len 1748 jc .Lxts_dec_short 1749 1750 shr \$1,$rounds 1751 sub \$1,$rounds 1752 mov $rounds,$rnds_ 1753 jmp .Lxts_dec_grandloop 1754 1755.align 16 1756.Lxts_dec_grandloop: 1757 pshufd \$0x13,$twtmp,$twres 1758 movdqa @tweak[5],@tweak[4] 1759 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1760 movdqu `16*0`($inp),$inout0 # load input 1761 pand $twmask,$twres # isolate carry and residue 1762 movdqu `16*1`($inp),$inout1 1763 pxor $twres,@tweak[5] 1764 1765 movdqu `16*2`($inp),$inout2 1766 pxor @tweak[0],$inout0 # input^=tweak 1767 movdqu `16*3`($inp),$inout3 1768 pxor @tweak[1],$inout1 1769 movdqu `16*4`($inp),$inout4 1770 pxor @tweak[2],$inout2 1771 movdqu `16*5`($inp),$inout5 1772 lea `16*6`($inp),$inp 1773 pxor @tweak[3],$inout3 1774 $movkey ($key_),$rndkey0 1775 pxor @tweak[4],$inout4 1776 pxor @tweak[5],$inout5 1777 1778 # inline _aesni_decrypt6 and interleave first and last rounds 1779 # with own code... 1780 $movkey 16($key_),$rndkey1 1781 pxor $rndkey0,$inout0 1782 pxor $rndkey0,$inout1 1783 movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks 1784 aesdec $rndkey1,$inout0 1785 lea 32($key_),$key 1786 pxor $rndkey0,$inout2 1787 movdqa @tweak[1],`16*1`(%rsp) 1788 aesdec $rndkey1,$inout1 1789 pxor $rndkey0,$inout3 1790 movdqa @tweak[2],`16*2`(%rsp) 1791 aesdec $rndkey1,$inout2 1792 pxor $rndkey0,$inout4 1793 movdqa @tweak[3],`16*3`(%rsp) 1794 aesdec $rndkey1,$inout3 1795 pxor $rndkey0,$inout5 1796 $movkey ($key),$rndkey0 1797 dec $rounds 1798 movdqa @tweak[4],`16*4`(%rsp) 1799 aesdec $rndkey1,$inout4 1800 movdqa @tweak[5],`16*5`(%rsp) 1801 aesdec $rndkey1,$inout5 1802 pxor $twtmp,$twtmp 1803 pcmpgtd @tweak[5],$twtmp 1804 jmp .Lxts_dec_loop6_enter 1805 1806.align 16 1807.Lxts_dec_loop6: 1808 aesdec $rndkey1,$inout0 1809 aesdec $rndkey1,$inout1 1810 dec $rounds 1811 aesdec $rndkey1,$inout2 1812 aesdec $rndkey1,$inout3 1813 aesdec $rndkey1,$inout4 1814 aesdec $rndkey1,$inout5 1815.Lxts_dec_loop6_enter: 1816 $movkey 16($key),$rndkey1 1817 aesdec $rndkey0,$inout0 1818 aesdec $rndkey0,$inout1 1819 lea 32($key),$key 1820 aesdec $rndkey0,$inout2 1821 aesdec $rndkey0,$inout3 1822 aesdec $rndkey0,$inout4 1823 aesdec $rndkey0,$inout5 1824 $movkey ($key),$rndkey0 1825 jnz .Lxts_dec_loop6 1826 1827 pshufd \$0x13,$twtmp,$twres 1828 pxor $twtmp,$twtmp 1829 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1830 aesdec $rndkey1,$inout0 1831 pand $twmask,$twres # isolate carry and residue 1832 aesdec $rndkey1,$inout1 1833 pcmpgtd @tweak[5],$twtmp # broadcast upper bits 1834 aesdec $rndkey1,$inout2 1835 pxor $twres,@tweak[5] 1836 aesdec $rndkey1,$inout3 1837 aesdec $rndkey1,$inout4 1838 aesdec $rndkey1,$inout5 1839 $movkey 16($key),$rndkey1 1840 1841 pshufd \$0x13,$twtmp,$twres 1842 pxor $twtmp,$twtmp 1843 movdqa @tweak[5],@tweak[0] 1844 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1845 aesdec $rndkey0,$inout0 1846 pand $twmask,$twres # isolate carry and residue 1847 aesdec $rndkey0,$inout1 1848 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1849 aesdec $rndkey0,$inout2 1850 pxor $twres,@tweak[5] 1851 aesdec $rndkey0,$inout3 1852 aesdec $rndkey0,$inout4 1853 aesdec $rndkey0,$inout5 1854 $movkey 32($key),$rndkey0 1855 1856 pshufd \$0x13,$twtmp,$twres 1857 pxor $twtmp,$twtmp 1858 movdqa @tweak[5],@tweak[1] 1859 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1860 aesdec $rndkey1,$inout0 1861 pand $twmask,$twres # isolate carry and residue 1862 aesdec $rndkey1,$inout1 1863 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1864 aesdec $rndkey1,$inout2 1865 pxor $twres,@tweak[5] 1866 aesdec $rndkey1,$inout3 1867 aesdec $rndkey1,$inout4 1868 aesdec $rndkey1,$inout5 1869 1870 pshufd \$0x13,$twtmp,$twres 1871 pxor $twtmp,$twtmp 1872 movdqa @tweak[5],@tweak[2] 1873 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1874 aesdeclast $rndkey0,$inout0 1875 pand $twmask,$twres # isolate carry and residue 1876 aesdeclast $rndkey0,$inout1 1877 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1878 aesdeclast $rndkey0,$inout2 1879 pxor $twres,@tweak[5] 1880 aesdeclast $rndkey0,$inout3 1881 aesdeclast $rndkey0,$inout4 1882 aesdeclast $rndkey0,$inout5 1883 1884 pshufd \$0x13,$twtmp,$twres 1885 pxor $twtmp,$twtmp 1886 movdqa @tweak[5],@tweak[3] 1887 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1888 xorps `16*0`(%rsp),$inout0 # output^=tweak 1889 pand $twmask,$twres # isolate carry and residue 1890 xorps `16*1`(%rsp),$inout1 1891 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1892 pxor $twres,@tweak[5] 1893 1894 xorps `16*2`(%rsp),$inout2 1895 movups $inout0,`16*0`($out) # write output 1896 xorps `16*3`(%rsp),$inout3 1897 movups $inout1,`16*1`($out) 1898 xorps `16*4`(%rsp),$inout4 1899 movups $inout2,`16*2`($out) 1900 xorps `16*5`(%rsp),$inout5 1901 movups $inout3,`16*3`($out) 1902 mov $rnds_,$rounds # restore $rounds 1903 movups $inout4,`16*4`($out) 1904 movups $inout5,`16*5`($out) 1905 lea `16*6`($out),$out 1906 sub \$16*6,$len 1907 jnc .Lxts_dec_grandloop 1908 1909 lea 3($rounds,$rounds),$rounds # restore original value 1910 mov $key_,$key # restore $key 1911 mov $rounds,$rnds_ # backup $rounds 1912 1913.Lxts_dec_short: 1914 add \$16*6,$len 1915 jz .Lxts_dec_done 1916 1917 cmp \$0x20,$len 1918 jb .Lxts_dec_one 1919 je .Lxts_dec_two 1920 1921 cmp \$0x40,$len 1922 jb .Lxts_dec_three 1923 je .Lxts_dec_four 1924 1925 pshufd \$0x13,$twtmp,$twres 1926 movdqa @tweak[5],@tweak[4] 1927 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1928 movdqu ($inp),$inout0 1929 pand $twmask,$twres # isolate carry and residue 1930 movdqu 16*1($inp),$inout1 1931 pxor $twres,@tweak[5] 1932 1933 movdqu 16*2($inp),$inout2 1934 pxor @tweak[0],$inout0 1935 movdqu 16*3($inp),$inout3 1936 pxor @tweak[1],$inout1 1937 movdqu 16*4($inp),$inout4 1938 lea 16*5($inp),$inp 1939 pxor @tweak[2],$inout2 1940 pxor @tweak[3],$inout3 1941 pxor @tweak[4],$inout4 1942 1943 call _aesni_decrypt6 1944 1945 xorps @tweak[0],$inout0 1946 xorps @tweak[1],$inout1 1947 xorps @tweak[2],$inout2 1948 movdqu $inout0,($out) 1949 xorps @tweak[3],$inout3 1950 movdqu $inout1,16*1($out) 1951 xorps @tweak[4],$inout4 1952 movdqu $inout2,16*2($out) 1953 pxor $twtmp,$twtmp 1954 movdqu $inout3,16*3($out) 1955 pcmpgtd @tweak[5],$twtmp 1956 movdqu $inout4,16*4($out) 1957 lea 16*5($out),$out 1958 pshufd \$0x13,$twtmp,@tweak[1] # $twres 1959 and \$15,$len_ 1960 jz .Lxts_dec_ret 1961 1962 movdqa @tweak[5],@tweak[0] 1963 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1964 pand $twmask,@tweak[1] # isolate carry and residue 1965 pxor @tweak[5],@tweak[1] 1966 jmp .Lxts_dec_done2 1967 1968.align 16 1969.Lxts_dec_one: 1970 movups ($inp),$inout0 1971 lea 16*1($inp),$inp 1972 xorps @tweak[0],$inout0 1973___ 1974 &aesni_generate1("dec",$key,$rounds); 1975$code.=<<___; 1976 xorps @tweak[0],$inout0 1977 movdqa @tweak[1],@tweak[0] 1978 movups $inout0,($out) 1979 movdqa @tweak[2],@tweak[1] 1980 lea 16*1($out),$out 1981 jmp .Lxts_dec_done 1982 1983.align 16 1984.Lxts_dec_two: 1985 movups ($inp),$inout0 1986 movups 16($inp),$inout1 1987 lea 32($inp),$inp 1988 xorps @tweak[0],$inout0 1989 xorps @tweak[1],$inout1 1990 1991 call _aesni_decrypt3 1992 1993 xorps @tweak[0],$inout0 1994 movdqa @tweak[2],@tweak[0] 1995 xorps @tweak[1],$inout1 1996 movdqa @tweak[3],@tweak[1] 1997 movups $inout0,($out) 1998 movups $inout1,16*1($out) 1999 lea 16*2($out),$out 2000 jmp .Lxts_dec_done 2001 2002.align 16 2003.Lxts_dec_three: 2004 movups ($inp),$inout0 2005 movups 16*1($inp),$inout1 2006 movups 16*2($inp),$inout2 2007 lea 16*3($inp),$inp 2008 xorps @tweak[0],$inout0 2009 xorps @tweak[1],$inout1 2010 xorps @tweak[2],$inout2 2011 2012 call _aesni_decrypt3 2013 2014 xorps @tweak[0],$inout0 2015 movdqa @tweak[3],@tweak[0] 2016 xorps @tweak[1],$inout1 2017 movdqa @tweak[5],@tweak[1] 2018 xorps @tweak[2],$inout2 2019 movups $inout0,($out) 2020 movups $inout1,16*1($out) 2021 movups $inout2,16*2($out) 2022 lea 16*3($out),$out 2023 jmp .Lxts_dec_done 2024 2025.align 16 2026.Lxts_dec_four: 2027 pshufd \$0x13,$twtmp,$twres 2028 movdqa @tweak[5],@tweak[4] 2029 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 2030 movups ($inp),$inout0 2031 pand $twmask,$twres # isolate carry and residue 2032 movups 16*1($inp),$inout1 2033 pxor $twres,@tweak[5] 2034 2035 movups 16*2($inp),$inout2 2036 xorps @tweak[0],$inout0 2037 movups 16*3($inp),$inout3 2038 lea 16*4($inp),$inp 2039 xorps @tweak[1],$inout1 2040 xorps @tweak[2],$inout2 2041 xorps @tweak[3],$inout3 2042 2043 call _aesni_decrypt4 2044 2045 xorps @tweak[0],$inout0 2046 movdqa @tweak[4],@tweak[0] 2047 xorps @tweak[1],$inout1 2048 movdqa @tweak[5],@tweak[1] 2049 xorps @tweak[2],$inout2 2050 movups $inout0,($out) 2051 xorps @tweak[3],$inout3 2052 movups $inout1,16*1($out) 2053 movups $inout2,16*2($out) 2054 movups $inout3,16*3($out) 2055 lea 16*4($out),$out 2056 jmp .Lxts_dec_done 2057 2058.align 16 2059.Lxts_dec_done: 2060 and \$15,$len_ 2061 jz .Lxts_dec_ret 2062.Lxts_dec_done2: 2063 mov $len_,$len 2064 mov $key_,$key # restore $key 2065 mov $rnds_,$rounds # restore $rounds 2066 2067 movups ($inp),$inout0 2068 xorps @tweak[1],$inout0 2069___ 2070 &aesni_generate1("dec",$key,$rounds); 2071$code.=<<___; 2072 xorps @tweak[1],$inout0 2073 movups $inout0,($out) 2074 2075.Lxts_dec_steal: 2076 movzb 16($inp),%eax # borrow $rounds ... 2077 movzb ($out),%ecx # ... and $key 2078 lea 1($inp),$inp 2079 mov %al,($out) 2080 mov %cl,16($out) 2081 lea 1($out),$out 2082 sub \$1,$len 2083 jnz .Lxts_dec_steal 2084 2085 sub $len_,$out # rewind $out 2086 mov $key_,$key # restore $key 2087 mov $rnds_,$rounds # restore $rounds 2088 2089 movups ($out),$inout0 2090 xorps @tweak[0],$inout0 2091___ 2092 &aesni_generate1("dec",$key,$rounds); 2093$code.=<<___; 2094 xorps @tweak[0],$inout0 2095 movups $inout0,($out) 2096 2097.Lxts_dec_ret: 2098___ 2099$code.=<<___ if ($win64); 2100 movaps 0x60(%rsp),%xmm6 2101 movaps 0x70(%rsp),%xmm7 2102 movaps 0x80(%rsp),%xmm8 2103 movaps 0x90(%rsp),%xmm9 2104 movaps 0xa0(%rsp),%xmm10 2105 movaps 0xb0(%rsp),%xmm11 2106 movaps 0xc0(%rsp),%xmm12 2107 movaps 0xd0(%rsp),%xmm13 2108 movaps 0xe0(%rsp),%xmm14 2109 movaps 0xf0(%rsp),%xmm15 2110___ 2111$code.=<<___; 2112 lea $frame_size(%rsp),%rsp 2113.Lxts_dec_epilogue: 2114 ret 2115.size aesni_xts_decrypt,.-aesni_xts_decrypt 2116___ 2117} }} 2118 2119######################################################################## 2120# void $PREFIX_cbc_encrypt (const void *inp, void *out, 2121# size_t length, const AES_KEY *key, 2122# unsigned char *ivp,const int enc); 2123{ 2124my $reserved = $win64?0x40:-0x18; # used in decrypt 2125$code.=<<___; 2126.globl ${PREFIX}_cbc_encrypt 2127.type ${PREFIX}_cbc_encrypt,\@function,6 2128.align 16 2129${PREFIX}_cbc_encrypt: 2130 test $len,$len # check length 2131 jz .Lcbc_ret 2132 2133 mov 240($key),$rnds_ # key->rounds 2134 mov $key,$key_ # backup $key 2135 test %r9d,%r9d # 6th argument 2136 jz .Lcbc_decrypt 2137#--------------------------- CBC ENCRYPT ------------------------------# 2138 movups ($ivp),$inout0 # load iv as initial state 2139 mov $rnds_,$rounds 2140 cmp \$16,$len 2141 jb .Lcbc_enc_tail 2142 sub \$16,$len 2143 jmp .Lcbc_enc_loop 2144.align 16 2145.Lcbc_enc_loop: 2146 movups ($inp),$inout1 # load input 2147 lea 16($inp),$inp 2148 #xorps $inout1,$inout0 2149___ 2150 &aesni_generate1("enc",$key,$rounds,$inout0,$inout1); 2151$code.=<<___; 2152 mov $rnds_,$rounds # restore $rounds 2153 mov $key_,$key # restore $key 2154 movups $inout0,0($out) # store output 2155 lea 16($out),$out 2156 sub \$16,$len 2157 jnc .Lcbc_enc_loop 2158 add \$16,$len 2159 jnz .Lcbc_enc_tail 2160 movups $inout0,($ivp) 2161 jmp .Lcbc_ret 2162 2163.Lcbc_enc_tail: 2164 mov $len,%rcx # zaps $key 2165 xchg $inp,$out # $inp is %rsi and $out is %rdi now 2166 .long 0x9066A4F3 # rep movsb 2167 mov \$16,%ecx # zero tail 2168 sub $len,%rcx 2169 xor %eax,%eax 2170 .long 0x9066AAF3 # rep stosb 2171 lea -16(%rdi),%rdi # rewind $out by 1 block 2172 mov $rnds_,$rounds # restore $rounds 2173 mov %rdi,%rsi # $inp and $out are the same 2174 mov $key_,$key # restore $key 2175 xor $len,$len # len=16 2176 jmp .Lcbc_enc_loop # one more spin 2177 #--------------------------- CBC DECRYPT ------------------------------# 2178.align 16 2179.Lcbc_decrypt: 2180___ 2181$code.=<<___ if ($win64); 2182 lea -0x58(%rsp),%rsp 2183 movaps %xmm6,(%rsp) 2184 movaps %xmm7,0x10(%rsp) 2185 movaps %xmm8,0x20(%rsp) 2186 movaps %xmm9,0x30(%rsp) 2187.Lcbc_decrypt_body: 2188___ 2189$code.=<<___; 2190 movups ($ivp),$iv 2191 mov $rnds_,$rounds 2192 cmp \$0x70,$len 2193 jbe .Lcbc_dec_tail 2194 shr \$1,$rnds_ 2195 sub \$0x70,$len 2196 mov $rnds_,$rounds 2197 movaps $iv,$reserved(%rsp) 2198 jmp .Lcbc_dec_loop8_enter 2199.align 16 2200.Lcbc_dec_loop8: 2201 movaps $rndkey0,$reserved(%rsp) # save IV 2202 movups $inout7,($out) 2203 lea 0x10($out),$out 2204.Lcbc_dec_loop8_enter: 2205 $movkey ($key),$rndkey0 2206 movups ($inp),$inout0 # load input 2207 movups 0x10($inp),$inout1 2208 $movkey 16($key),$rndkey1 2209 2210 lea 32($key),$key 2211 movdqu 0x20($inp),$inout2 2212 xorps $rndkey0,$inout0 2213 movdqu 0x30($inp),$inout3 2214 xorps $rndkey0,$inout1 2215 movdqu 0x40($inp),$inout4 2216 aesdec $rndkey1,$inout0 2217 pxor $rndkey0,$inout2 2218 movdqu 0x50($inp),$inout5 2219 aesdec $rndkey1,$inout1 2220 pxor $rndkey0,$inout3 2221 movdqu 0x60($inp),$inout6 2222 aesdec $rndkey1,$inout2 2223 pxor $rndkey0,$inout4 2224 movdqu 0x70($inp),$inout7 2225 aesdec $rndkey1,$inout3 2226 pxor $rndkey0,$inout5 2227 dec $rounds 2228 aesdec $rndkey1,$inout4 2229 pxor $rndkey0,$inout6 2230 aesdec $rndkey1,$inout5 2231 pxor $rndkey0,$inout7 2232 $movkey ($key),$rndkey0 2233 aesdec $rndkey1,$inout6 2234 aesdec $rndkey1,$inout7 2235 $movkey 16($key),$rndkey1 2236 2237 call .Ldec_loop8_enter 2238 2239 movups ($inp),$rndkey1 # re-load input 2240 movups 0x10($inp),$rndkey0 2241 xorps $reserved(%rsp),$inout0 # ^= IV 2242 xorps $rndkey1,$inout1 2243 movups 0x20($inp),$rndkey1 2244 xorps $rndkey0,$inout2 2245 movups 0x30($inp),$rndkey0 2246 xorps $rndkey1,$inout3 2247 movups 0x40($inp),$rndkey1 2248 xorps $rndkey0,$inout4 2249 movups 0x50($inp),$rndkey0 2250 xorps $rndkey1,$inout5 2251 movups 0x60($inp),$rndkey1 2252 xorps $rndkey0,$inout6 2253 movups 0x70($inp),$rndkey0 # IV 2254 xorps $rndkey1,$inout7 2255 movups $inout0,($out) 2256 movups $inout1,0x10($out) 2257 movups $inout2,0x20($out) 2258 movups $inout3,0x30($out) 2259 mov $rnds_,$rounds # restore $rounds 2260 movups $inout4,0x40($out) 2261 mov $key_,$key # restore $key 2262 movups $inout5,0x50($out) 2263 lea 0x80($inp),$inp 2264 movups $inout6,0x60($out) 2265 lea 0x70($out),$out 2266 sub \$0x80,$len 2267 ja .Lcbc_dec_loop8 2268 2269 movaps $inout7,$inout0 2270 movaps $rndkey0,$iv 2271 add \$0x70,$len 2272 jle .Lcbc_dec_tail_collected 2273 movups $inout0,($out) 2274 lea 1($rnds_,$rnds_),$rounds 2275 lea 0x10($out),$out 2276.Lcbc_dec_tail: 2277 movups ($inp),$inout0 2278 movaps $inout0,$in0 2279 cmp \$0x10,$len 2280 jbe .Lcbc_dec_one 2281 2282 movups 0x10($inp),$inout1 2283 movaps $inout1,$in1 2284 cmp \$0x20,$len 2285 jbe .Lcbc_dec_two 2286 2287 movups 0x20($inp),$inout2 2288 movaps $inout2,$in2 2289 cmp \$0x30,$len 2290 jbe .Lcbc_dec_three 2291 2292 movups 0x30($inp),$inout3 2293 cmp \$0x40,$len 2294 jbe .Lcbc_dec_four 2295 2296 movups 0x40($inp),$inout4 2297 cmp \$0x50,$len 2298 jbe .Lcbc_dec_five 2299 2300 movups 0x50($inp),$inout5 2301 cmp \$0x60,$len 2302 jbe .Lcbc_dec_six 2303 2304 movups 0x60($inp),$inout6 2305 movaps $iv,$reserved(%rsp) # save IV 2306 call _aesni_decrypt8 2307 movups ($inp),$rndkey1 2308 movups 0x10($inp),$rndkey0 2309 xorps $reserved(%rsp),$inout0 # ^= IV 2310 xorps $rndkey1,$inout1 2311 movups 0x20($inp),$rndkey1 2312 xorps $rndkey0,$inout2 2313 movups 0x30($inp),$rndkey0 2314 xorps $rndkey1,$inout3 2315 movups 0x40($inp),$rndkey1 2316 xorps $rndkey0,$inout4 2317 movups 0x50($inp),$rndkey0 2318 xorps $rndkey1,$inout5 2319 movups 0x60($inp),$iv # IV 2320 xorps $rndkey0,$inout6 2321 movups $inout0,($out) 2322 movups $inout1,0x10($out) 2323 movups $inout2,0x20($out) 2324 movups $inout3,0x30($out) 2325 movups $inout4,0x40($out) 2326 movups $inout5,0x50($out) 2327 lea 0x60($out),$out 2328 movaps $inout6,$inout0 2329 sub \$0x70,$len 2330 jmp .Lcbc_dec_tail_collected 2331.align 16 2332.Lcbc_dec_one: 2333___ 2334 &aesni_generate1("dec",$key,$rounds); 2335$code.=<<___; 2336 xorps $iv,$inout0 2337 movaps $in0,$iv 2338 sub \$0x10,$len 2339 jmp .Lcbc_dec_tail_collected 2340.align 16 2341.Lcbc_dec_two: 2342 xorps $inout2,$inout2 2343 call _aesni_decrypt3 2344 xorps $iv,$inout0 2345 xorps $in0,$inout1 2346 movups $inout0,($out) 2347 movaps $in1,$iv 2348 movaps $inout1,$inout0 2349 lea 0x10($out),$out 2350 sub \$0x20,$len 2351 jmp .Lcbc_dec_tail_collected 2352.align 16 2353.Lcbc_dec_three: 2354 call _aesni_decrypt3 2355 xorps $iv,$inout0 2356 xorps $in0,$inout1 2357 movups $inout0,($out) 2358 xorps $in1,$inout2 2359 movups $inout1,0x10($out) 2360 movaps $in2,$iv 2361 movaps $inout2,$inout0 2362 lea 0x20($out),$out 2363 sub \$0x30,$len 2364 jmp .Lcbc_dec_tail_collected 2365.align 16 2366.Lcbc_dec_four: 2367 call _aesni_decrypt4 2368 xorps $iv,$inout0 2369 movups 0x30($inp),$iv 2370 xorps $in0,$inout1 2371 movups $inout0,($out) 2372 xorps $in1,$inout2 2373 movups $inout1,0x10($out) 2374 xorps $in2,$inout3 2375 movups $inout2,0x20($out) 2376 movaps $inout3,$inout0 2377 lea 0x30($out),$out 2378 sub \$0x40,$len 2379 jmp .Lcbc_dec_tail_collected 2380.align 16 2381.Lcbc_dec_five: 2382 xorps $inout5,$inout5 2383 call _aesni_decrypt6 2384 movups 0x10($inp),$rndkey1 2385 movups 0x20($inp),$rndkey0 2386 xorps $iv,$inout0 2387 xorps $in0,$inout1 2388 xorps $rndkey1,$inout2 2389 movups 0x30($inp),$rndkey1 2390 xorps $rndkey0,$inout3 2391 movups 0x40($inp),$iv 2392 xorps $rndkey1,$inout4 2393 movups $inout0,($out) 2394 movups $inout1,0x10($out) 2395 movups $inout2,0x20($out) 2396 movups $inout3,0x30($out) 2397 lea 0x40($out),$out 2398 movaps $inout4,$inout0 2399 sub \$0x50,$len 2400 jmp .Lcbc_dec_tail_collected 2401.align 16 2402.Lcbc_dec_six: 2403 call _aesni_decrypt6 2404 movups 0x10($inp),$rndkey1 2405 movups 0x20($inp),$rndkey0 2406 xorps $iv,$inout0 2407 xorps $in0,$inout1 2408 xorps $rndkey1,$inout2 2409 movups 0x30($inp),$rndkey1 2410 xorps $rndkey0,$inout3 2411 movups 0x40($inp),$rndkey0 2412 xorps $rndkey1,$inout4 2413 movups 0x50($inp),$iv 2414 xorps $rndkey0,$inout5 2415 movups $inout0,($out) 2416 movups $inout1,0x10($out) 2417 movups $inout2,0x20($out) 2418 movups $inout3,0x30($out) 2419 movups $inout4,0x40($out) 2420 lea 0x50($out),$out 2421 movaps $inout5,$inout0 2422 sub \$0x60,$len 2423 jmp .Lcbc_dec_tail_collected 2424.align 16 2425.Lcbc_dec_tail_collected: 2426 and \$15,$len 2427 movups $iv,($ivp) 2428 jnz .Lcbc_dec_tail_partial 2429 movups $inout0,($out) 2430 jmp .Lcbc_dec_ret 2431.align 16 2432.Lcbc_dec_tail_partial: 2433 movaps $inout0,$reserved(%rsp) 2434 mov \$16,%rcx 2435 mov $out,%rdi 2436 sub $len,%rcx 2437 lea $reserved(%rsp),%rsi 2438 .long 0x9066A4F3 # rep movsb 2439 2440.Lcbc_dec_ret: 2441___ 2442$code.=<<___ if ($win64); 2443 movaps (%rsp),%xmm6 2444 movaps 0x10(%rsp),%xmm7 2445 movaps 0x20(%rsp),%xmm8 2446 movaps 0x30(%rsp),%xmm9 2447 lea 0x58(%rsp),%rsp 2448___ 2449$code.=<<___; 2450.Lcbc_ret: 2451 ret 2452.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt 2453___ 2454} 2455# int $PREFIX_set_[en|de]crypt_key (const unsigned char *userKey, 2456# int bits, AES_KEY *key) 2457{ my ($inp,$bits,$key) = @_4args; 2458 $bits =~ s/%r/%e/; 2459 2460$code.=<<___; 2461.globl ${PREFIX}_set_decrypt_key 2462.type ${PREFIX}_set_decrypt_key,\@abi-omnipotent 2463.align 16 2464${PREFIX}_set_decrypt_key: 2465 .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 2466 call __aesni_set_encrypt_key 2467 shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key 2468 test %eax,%eax 2469 jnz .Ldec_key_ret 2470 lea 16($key,$bits),$inp # points at the end of key schedule 2471 2472 $movkey ($key),%xmm0 # just swap 2473 $movkey ($inp),%xmm1 2474 $movkey %xmm0,($inp) 2475 $movkey %xmm1,($key) 2476 lea 16($key),$key 2477 lea -16($inp),$inp 2478 2479.Ldec_key_inverse: 2480 $movkey ($key),%xmm0 # swap and inverse 2481 $movkey ($inp),%xmm1 2482 aesimc %xmm0,%xmm0 2483 aesimc %xmm1,%xmm1 2484 lea 16($key),$key 2485 lea -16($inp),$inp 2486 $movkey %xmm0,16($inp) 2487 $movkey %xmm1,-16($key) 2488 cmp $key,$inp 2489 ja .Ldec_key_inverse 2490 2491 $movkey ($key),%xmm0 # inverse middle 2492 aesimc %xmm0,%xmm0 2493 $movkey %xmm0,($inp) 2494.Ldec_key_ret: 2495 add \$8,%rsp 2496 ret 2497.LSEH_end_set_decrypt_key: 2498.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key 2499___ 2500 2501# This is based on submission by 2502# 2503# Huang Ying <ying.huang@intel.com> 2504# Vinodh Gopal <vinodh.gopal@intel.com> 2505# Kahraman Akdemir 2506# 2507# Agressively optimized in respect to aeskeygenassist's critical path 2508# and is contained in %xmm0-5 to meet Win64 ABI requirement. 2509# 2510$code.=<<___; 2511.globl ${PREFIX}_set_encrypt_key 2512.type ${PREFIX}_set_encrypt_key,\@abi-omnipotent 2513.align 16 2514${PREFIX}_set_encrypt_key: 2515__aesni_set_encrypt_key: 2516 .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 2517 mov \$-1,%rax 2518 test $inp,$inp 2519 jz .Lenc_key_ret 2520 test $key,$key 2521 jz .Lenc_key_ret 2522 2523 movups ($inp),%xmm0 # pull first 128 bits of *userKey 2524 xorps %xmm4,%xmm4 # low dword of xmm4 is assumed 0 2525 lea 16($key),%rax 2526 cmp \$256,$bits 2527 je .L14rounds 2528 cmp \$192,$bits 2529 je .L12rounds 2530 cmp \$128,$bits 2531 jne .Lbad_keybits 2532 2533.L10rounds: 2534 mov \$9,$bits # 10 rounds for 128-bit key 2535 $movkey %xmm0,($key) # round 0 2536 aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1 2537 call .Lkey_expansion_128_cold 2538 aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2 2539 call .Lkey_expansion_128 2540 aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3 2541 call .Lkey_expansion_128 2542 aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4 2543 call .Lkey_expansion_128 2544 aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5 2545 call .Lkey_expansion_128 2546 aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6 2547 call .Lkey_expansion_128 2548 aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7 2549 call .Lkey_expansion_128 2550 aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8 2551 call .Lkey_expansion_128 2552 aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9 2553 call .Lkey_expansion_128 2554 aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10 2555 call .Lkey_expansion_128 2556 $movkey %xmm0,(%rax) 2557 mov $bits,80(%rax) # 240(%rdx) 2558 xor %eax,%eax 2559 jmp .Lenc_key_ret 2560 2561.align 16 2562.L12rounds: 2563 movq 16($inp),%xmm2 # remaining 1/3 of *userKey 2564 mov \$11,$bits # 12 rounds for 192 2565 $movkey %xmm0,($key) # round 0 2566 aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2 2567 call .Lkey_expansion_192a_cold 2568 aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3 2569 call .Lkey_expansion_192b 2570 aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5 2571 call .Lkey_expansion_192a 2572 aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6 2573 call .Lkey_expansion_192b 2574 aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8 2575 call .Lkey_expansion_192a 2576 aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9 2577 call .Lkey_expansion_192b 2578 aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11 2579 call .Lkey_expansion_192a 2580 aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12 2581 call .Lkey_expansion_192b 2582 $movkey %xmm0,(%rax) 2583 mov $bits,48(%rax) # 240(%rdx) 2584 xor %rax, %rax 2585 jmp .Lenc_key_ret 2586 2587.align 16 2588.L14rounds: 2589 movups 16($inp),%xmm2 # remaning half of *userKey 2590 mov \$13,$bits # 14 rounds for 256 2591 lea 16(%rax),%rax 2592 $movkey %xmm0,($key) # round 0 2593 $movkey %xmm2,16($key) # round 1 2594 aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2 2595 call .Lkey_expansion_256a_cold 2596 aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3 2597 call .Lkey_expansion_256b 2598 aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4 2599 call .Lkey_expansion_256a 2600 aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5 2601 call .Lkey_expansion_256b 2602 aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6 2603 call .Lkey_expansion_256a 2604 aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7 2605 call .Lkey_expansion_256b 2606 aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8 2607 call .Lkey_expansion_256a 2608 aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9 2609 call .Lkey_expansion_256b 2610 aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10 2611 call .Lkey_expansion_256a 2612 aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11 2613 call .Lkey_expansion_256b 2614 aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12 2615 call .Lkey_expansion_256a 2616 aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13 2617 call .Lkey_expansion_256b 2618 aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14 2619 call .Lkey_expansion_256a 2620 $movkey %xmm0,(%rax) 2621 mov $bits,16(%rax) # 240(%rdx) 2622 xor %rax,%rax 2623 jmp .Lenc_key_ret 2624 2625.align 16 2626.Lbad_keybits: 2627 mov \$-2,%rax 2628.Lenc_key_ret: 2629 add \$8,%rsp 2630 ret 2631.LSEH_end_set_encrypt_key: 2632 2633.align 16 2634.Lkey_expansion_128: 2635 $movkey %xmm0,(%rax) 2636 lea 16(%rax),%rax 2637.Lkey_expansion_128_cold: 2638 shufps \$0b00010000,%xmm0,%xmm4 2639 xorps %xmm4, %xmm0 2640 shufps \$0b10001100,%xmm0,%xmm4 2641 xorps %xmm4, %xmm0 2642 shufps \$0b11111111,%xmm1,%xmm1 # critical path 2643 xorps %xmm1,%xmm0 2644 ret 2645 2646.align 16 2647.Lkey_expansion_192a: 2648 $movkey %xmm0,(%rax) 2649 lea 16(%rax),%rax 2650.Lkey_expansion_192a_cold: 2651 movaps %xmm2, %xmm5 2652.Lkey_expansion_192b_warm: 2653 shufps \$0b00010000,%xmm0,%xmm4 2654 movdqa %xmm2,%xmm3 2655 xorps %xmm4,%xmm0 2656 shufps \$0b10001100,%xmm0,%xmm4 2657 pslldq \$4,%xmm3 2658 xorps %xmm4,%xmm0 2659 pshufd \$0b01010101,%xmm1,%xmm1 # critical path 2660 pxor %xmm3,%xmm2 2661 pxor %xmm1,%xmm0 2662 pshufd \$0b11111111,%xmm0,%xmm3 2663 pxor %xmm3,%xmm2 2664 ret 2665 2666.align 16 2667.Lkey_expansion_192b: 2668 movaps %xmm0,%xmm3 2669 shufps \$0b01000100,%xmm0,%xmm5 2670 $movkey %xmm5,(%rax) 2671 shufps \$0b01001110,%xmm2,%xmm3 2672 $movkey %xmm3,16(%rax) 2673 lea 32(%rax),%rax 2674 jmp .Lkey_expansion_192b_warm 2675 2676.align 16 2677.Lkey_expansion_256a: 2678 $movkey %xmm2,(%rax) 2679 lea 16(%rax),%rax 2680.Lkey_expansion_256a_cold: 2681 shufps \$0b00010000,%xmm0,%xmm4 2682 xorps %xmm4,%xmm0 2683 shufps \$0b10001100,%xmm0,%xmm4 2684 xorps %xmm4,%xmm0 2685 shufps \$0b11111111,%xmm1,%xmm1 # critical path 2686 xorps %xmm1,%xmm0 2687 ret 2688 2689.align 16 2690.Lkey_expansion_256b: 2691 $movkey %xmm0,(%rax) 2692 lea 16(%rax),%rax 2693 2694 shufps \$0b00010000,%xmm2,%xmm4 2695 xorps %xmm4,%xmm2 2696 shufps \$0b10001100,%xmm2,%xmm4 2697 xorps %xmm4,%xmm2 2698 shufps \$0b10101010,%xmm1,%xmm1 # critical path 2699 xorps %xmm1,%xmm2 2700 ret 2701.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key 2702.size __aesni_set_encrypt_key,.-__aesni_set_encrypt_key 2703___ 2704} 2705 2706$code.=<<___; 2707.align 64 2708.Lbswap_mask: 2709 .byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0 2710.Lincrement32: 2711 .long 6,6,6,0 2712.Lincrement64: 2713 .long 1,0,0,0 2714.Lxts_magic: 2715 .long 0x87,0,1,0 2716 2717.asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>" 2718.align 64 2719___ 2720 2721# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, 2722# CONTEXT *context,DISPATCHER_CONTEXT *disp) 2723if ($win64) { 2724$rec="%rcx"; 2725$frame="%rdx"; 2726$context="%r8"; 2727$disp="%r9"; 2728 2729$code.=<<___; 2730.extern __imp_RtlVirtualUnwind 2731___ 2732$code.=<<___ if ($PREFIX eq "aesni"); 2733.type ecb_se_handler,\@abi-omnipotent 2734.align 16 2735ecb_se_handler: 2736 push %rsi 2737 push %rdi 2738 push %rbx 2739 push %rbp 2740 push %r12 2741 push %r13 2742 push %r14 2743 push %r15 2744 pushfq 2745 sub \$64,%rsp 2746 2747 mov 152($context),%rax # pull context->Rsp 2748 2749 jmp .Lcommon_seh_tail 2750.size ecb_se_handler,.-ecb_se_handler 2751 2752.type ccm64_se_handler,\@abi-omnipotent 2753.align 16 2754ccm64_se_handler: 2755 push %rsi 2756 push %rdi 2757 push %rbx 2758 push %rbp 2759 push %r12 2760 push %r13 2761 push %r14 2762 push %r15 2763 pushfq 2764 sub \$64,%rsp 2765 2766 mov 120($context),%rax # pull context->Rax 2767 mov 248($context),%rbx # pull context->Rip 2768 2769 mov 8($disp),%rsi # disp->ImageBase 2770 mov 56($disp),%r11 # disp->HandlerData 2771 2772 mov 0(%r11),%r10d # HandlerData[0] 2773 lea (%rsi,%r10),%r10 # prologue label 2774 cmp %r10,%rbx # context->Rip<prologue label 2775 jb .Lcommon_seh_tail 2776 2777 mov 152($context),%rax # pull context->Rsp 2778 2779 mov 4(%r11),%r10d # HandlerData[1] 2780 lea (%rsi,%r10),%r10 # epilogue label 2781 cmp %r10,%rbx # context->Rip>=epilogue label 2782 jae .Lcommon_seh_tail 2783 2784 lea 0(%rax),%rsi # %xmm save area 2785 lea 512($context),%rdi # &context.Xmm6 2786 mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) 2787 .long 0xa548f3fc # cld; rep movsq 2788 lea 0x58(%rax),%rax # adjust stack pointer 2789 2790 jmp .Lcommon_seh_tail 2791.size ccm64_se_handler,.-ccm64_se_handler 2792 2793.type ctr32_se_handler,\@abi-omnipotent 2794.align 16 2795ctr32_se_handler: 2796 push %rsi 2797 push %rdi 2798 push %rbx 2799 push %rbp 2800 push %r12 2801 push %r13 2802 push %r14 2803 push %r15 2804 pushfq 2805 sub \$64,%rsp 2806 2807 mov 120($context),%rax # pull context->Rax 2808 mov 248($context),%rbx # pull context->Rip 2809 2810 lea .Lctr32_body(%rip),%r10 2811 cmp %r10,%rbx # context->Rip<"prologue" label 2812 jb .Lcommon_seh_tail 2813 2814 mov 152($context),%rax # pull context->Rsp 2815 2816 lea .Lctr32_ret(%rip),%r10 2817 cmp %r10,%rbx 2818 jae .Lcommon_seh_tail 2819 2820 lea 0x20(%rax),%rsi # %xmm save area 2821 lea 512($context),%rdi # &context.Xmm6 2822 mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) 2823 .long 0xa548f3fc # cld; rep movsq 2824 lea 0xc8(%rax),%rax # adjust stack pointer 2825 2826 jmp .Lcommon_seh_tail 2827.size ctr32_se_handler,.-ctr32_se_handler 2828 2829.type xts_se_handler,\@abi-omnipotent 2830.align 16 2831xts_se_handler: 2832 push %rsi 2833 push %rdi 2834 push %rbx 2835 push %rbp 2836 push %r12 2837 push %r13 2838 push %r14 2839 push %r15 2840 pushfq 2841 sub \$64,%rsp 2842 2843 mov 120($context),%rax # pull context->Rax 2844 mov 248($context),%rbx # pull context->Rip 2845 2846 mov 8($disp),%rsi # disp->ImageBase 2847 mov 56($disp),%r11 # disp->HandlerData 2848 2849 mov 0(%r11),%r10d # HandlerData[0] 2850 lea (%rsi,%r10),%r10 # prologue lable 2851 cmp %r10,%rbx # context->Rip<prologue label 2852 jb .Lcommon_seh_tail 2853 2854 mov 152($context),%rax # pull context->Rsp 2855 2856 mov 4(%r11),%r10d # HandlerData[1] 2857 lea (%rsi,%r10),%r10 # epilogue label 2858 cmp %r10,%rbx # context->Rip>=epilogue label 2859 jae .Lcommon_seh_tail 2860 2861 lea 0x60(%rax),%rsi # %xmm save area 2862 lea 512($context),%rdi # & context.Xmm6 2863 mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) 2864 .long 0xa548f3fc # cld; rep movsq 2865 lea 0x68+160(%rax),%rax # adjust stack pointer 2866 2867 jmp .Lcommon_seh_tail 2868.size xts_se_handler,.-xts_se_handler 2869___ 2870$code.=<<___; 2871.type cbc_se_handler,\@abi-omnipotent 2872.align 16 2873cbc_se_handler: 2874 push %rsi 2875 push %rdi 2876 push %rbx 2877 push %rbp 2878 push %r12 2879 push %r13 2880 push %r14 2881 push %r15 2882 pushfq 2883 sub \$64,%rsp 2884 2885 mov 152($context),%rax # pull context->Rsp 2886 mov 248($context),%rbx # pull context->Rip 2887 2888 lea .Lcbc_decrypt(%rip),%r10 2889 cmp %r10,%rbx # context->Rip<"prologue" label 2890 jb .Lcommon_seh_tail 2891 2892 lea .Lcbc_decrypt_body(%rip),%r10 2893 cmp %r10,%rbx # context->Rip<cbc_decrypt_body 2894 jb .Lrestore_cbc_rax 2895 2896 lea .Lcbc_ret(%rip),%r10 2897 cmp %r10,%rbx # context->Rip>="epilogue" label 2898 jae .Lcommon_seh_tail 2899 2900 lea 0(%rax),%rsi # top of stack 2901 lea 512($context),%rdi # &context.Xmm6 2902 mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) 2903 .long 0xa548f3fc # cld; rep movsq 2904 lea 0x58(%rax),%rax # adjust stack pointer 2905 jmp .Lcommon_seh_tail 2906 2907.Lrestore_cbc_rax: 2908 mov 120($context),%rax 2909 2910.Lcommon_seh_tail: 2911 mov 8(%rax),%rdi 2912 mov 16(%rax),%rsi 2913 mov %rax,152($context) # restore context->Rsp 2914 mov %rsi,168($context) # restore context->Rsi 2915 mov %rdi,176($context) # restore context->Rdi 2916 2917 mov 40($disp),%rdi # disp->ContextRecord 2918 mov $context,%rsi # context 2919 mov \$154,%ecx # sizeof(CONTEXT) 2920 .long 0xa548f3fc # cld; rep movsq 2921 2922 mov $disp,%rsi 2923 xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER 2924 mov 8(%rsi),%rdx # arg2, disp->ImageBase 2925 mov 0(%rsi),%r8 # arg3, disp->ControlPc 2926 mov 16(%rsi),%r9 # arg4, disp->FunctionEntry 2927 mov 40(%rsi),%r10 # disp->ContextRecord 2928 lea 56(%rsi),%r11 # &disp->HandlerData 2929 lea 24(%rsi),%r12 # &disp->EstablisherFrame 2930 mov %r10,32(%rsp) # arg5 2931 mov %r11,40(%rsp) # arg6 2932 mov %r12,48(%rsp) # arg7 2933 mov %rcx,56(%rsp) # arg8, (NULL) 2934 call *__imp_RtlVirtualUnwind(%rip) 2935 2936 mov \$1,%eax # ExceptionContinueSearch 2937 add \$64,%rsp 2938 popfq 2939 pop %r15 2940 pop %r14 2941 pop %r13 2942 pop %r12 2943 pop %rbp 2944 pop %rbx 2945 pop %rdi 2946 pop %rsi 2947 ret 2948.size cbc_se_handler,.-cbc_se_handler 2949 2950.section .pdata 2951.align 4 2952___ 2953$code.=<<___ if ($PREFIX eq "aesni"); 2954 .rva .LSEH_begin_aesni_ecb_encrypt 2955 .rva .LSEH_end_aesni_ecb_encrypt 2956 .rva .LSEH_info_ecb 2957 2958 .rva .LSEH_begin_aesni_ccm64_encrypt_blocks 2959 .rva .LSEH_end_aesni_ccm64_encrypt_blocks 2960 .rva .LSEH_info_ccm64_enc 2961 2962 .rva .LSEH_begin_aesni_ccm64_decrypt_blocks 2963 .rva .LSEH_end_aesni_ccm64_decrypt_blocks 2964 .rva .LSEH_info_ccm64_dec 2965 2966 .rva .LSEH_begin_aesni_ctr32_encrypt_blocks 2967 .rva .LSEH_end_aesni_ctr32_encrypt_blocks 2968 .rva .LSEH_info_ctr32 2969 2970 .rva .LSEH_begin_aesni_xts_encrypt 2971 .rva .LSEH_end_aesni_xts_encrypt 2972 .rva .LSEH_info_xts_enc 2973 2974 .rva .LSEH_begin_aesni_xts_decrypt 2975 .rva .LSEH_end_aesni_xts_decrypt 2976 .rva .LSEH_info_xts_dec 2977___ 2978$code.=<<___; 2979 .rva .LSEH_begin_${PREFIX}_cbc_encrypt 2980 .rva .LSEH_end_${PREFIX}_cbc_encrypt 2981 .rva .LSEH_info_cbc 2982 2983 .rva ${PREFIX}_set_decrypt_key 2984 .rva .LSEH_end_set_decrypt_key 2985 .rva .LSEH_info_key 2986 2987 .rva ${PREFIX}_set_encrypt_key 2988 .rva .LSEH_end_set_encrypt_key 2989 .rva .LSEH_info_key 2990.section .xdata 2991.align 8 2992___ 2993$code.=<<___ if ($PREFIX eq "aesni"); 2994.LSEH_info_ecb: 2995 .byte 9,0,0,0 2996 .rva ecb_se_handler 2997.LSEH_info_ccm64_enc: 2998 .byte 9,0,0,0 2999 .rva ccm64_se_handler 3000 .rva .Lccm64_enc_body,.Lccm64_enc_ret # HandlerData[] 3001.LSEH_info_ccm64_dec: 3002 .byte 9,0,0,0 3003 .rva ccm64_se_handler 3004 .rva .Lccm64_dec_body,.Lccm64_dec_ret # HandlerData[] 3005.LSEH_info_ctr32: 3006 .byte 9,0,0,0 3007 .rva ctr32_se_handler 3008.LSEH_info_xts_enc: 3009 .byte 9,0,0,0 3010 .rva xts_se_handler 3011 .rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[] 3012.LSEH_info_xts_dec: 3013 .byte 9,0,0,0 3014 .rva xts_se_handler 3015 .rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[] 3016___ 3017$code.=<<___; 3018.LSEH_info_cbc: 3019 .byte 9,0,0,0 3020 .rva cbc_se_handler 3021.LSEH_info_key: 3022 .byte 0x01,0x04,0x01,0x00 3023 .byte 0x04,0x02,0x00,0x00 # sub rsp,8 3024___ 3025} 3026 3027sub rex { 3028 local *opcode=shift; 3029 my ($dst,$src)=@_; 3030 my $rex=0; 3031 3032 $rex|=0x04 if($dst>=8); 3033 $rex|=0x01 if($src>=8); 3034 push @opcode,$rex|0x40 if($rex); 3035} 3036 3037sub aesni { 3038 my $line=shift; 3039 my @opcode=(0x66); 3040 3041 if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) { 3042 rex(\@opcode,$4,$3); 3043 push @opcode,0x0f,0x3a,0xdf; 3044 push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M 3045 my $c=$2; 3046 push @opcode,$c=~/^0/?oct($c):$c; 3047 return ".byte\t".join(',',@opcode); 3048 } 3049 elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) { 3050 my %opcodelet = ( 3051 "aesimc" => 0xdb, 3052 "aesenc" => 0xdc, "aesenclast" => 0xdd, 3053 "aesdec" => 0xde, "aesdeclast" => 0xdf 3054 ); 3055 return undef if (!defined($opcodelet{$1})); 3056 rex(\@opcode,$3,$2); 3057 push @opcode,0x0f,0x38,$opcodelet{$1}; 3058 push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M 3059 return ".byte\t".join(',',@opcode); 3060 } 3061 return $line; 3062} 3063 3064$code =~ s/\`([^\`]*)\`/eval($1)/gem; 3065$code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem; 3066 3067print $code; 3068 3069close STDOUT; 3070