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___ 529$code.=<<___ if ($win64); 530 lea -0x58(%rsp),%rsp 531 movaps %xmm6,(%rsp) 532 movaps %xmm7,0x10(%rsp) 533 movaps %xmm8,0x20(%rsp) 534 movaps %xmm9,0x30(%rsp) 535.Lecb_enc_body: 536___ 537$code.=<<___; 538 and \$-16,$len 539 jz .Lecb_ret 540 541 mov 240($key),$rounds # key->rounds 542 $movkey ($key),$rndkey0 543 mov $key,$key_ # backup $key 544 mov $rounds,$rnds_ # backup $rounds 545 test %r8d,%r8d # 5th argument 546 jz .Lecb_decrypt 547#--------------------------- ECB ENCRYPT ------------------------------# 548 cmp \$0x80,$len 549 jb .Lecb_enc_tail 550 551 movdqu ($inp),$inout0 552 movdqu 0x10($inp),$inout1 553 movdqu 0x20($inp),$inout2 554 movdqu 0x30($inp),$inout3 555 movdqu 0x40($inp),$inout4 556 movdqu 0x50($inp),$inout5 557 movdqu 0x60($inp),$inout6 558 movdqu 0x70($inp),$inout7 559 lea 0x80($inp),$inp 560 sub \$0x80,$len 561 jmp .Lecb_enc_loop8_enter 562.align 16 563.Lecb_enc_loop8: 564 movups $inout0,($out) 565 mov $key_,$key # restore $key 566 movdqu ($inp),$inout0 567 mov $rnds_,$rounds # restore $rounds 568 movups $inout1,0x10($out) 569 movdqu 0x10($inp),$inout1 570 movups $inout2,0x20($out) 571 movdqu 0x20($inp),$inout2 572 movups $inout3,0x30($out) 573 movdqu 0x30($inp),$inout3 574 movups $inout4,0x40($out) 575 movdqu 0x40($inp),$inout4 576 movups $inout5,0x50($out) 577 movdqu 0x50($inp),$inout5 578 movups $inout6,0x60($out) 579 movdqu 0x60($inp),$inout6 580 movups $inout7,0x70($out) 581 lea 0x80($out),$out 582 movdqu 0x70($inp),$inout7 583 lea 0x80($inp),$inp 584.Lecb_enc_loop8_enter: 585 586 call _aesni_encrypt8 587 588 sub \$0x80,$len 589 jnc .Lecb_enc_loop8 590 591 movups $inout0,($out) 592 mov $key_,$key # restore $key 593 movups $inout1,0x10($out) 594 mov $rnds_,$rounds # restore $rounds 595 movups $inout2,0x20($out) 596 movups $inout3,0x30($out) 597 movups $inout4,0x40($out) 598 movups $inout5,0x50($out) 599 movups $inout6,0x60($out) 600 movups $inout7,0x70($out) 601 lea 0x80($out),$out 602 add \$0x80,$len 603 jz .Lecb_ret 604 605.Lecb_enc_tail: 606 movups ($inp),$inout0 607 cmp \$0x20,$len 608 jb .Lecb_enc_one 609 movups 0x10($inp),$inout1 610 je .Lecb_enc_two 611 movups 0x20($inp),$inout2 612 cmp \$0x40,$len 613 jb .Lecb_enc_three 614 movups 0x30($inp),$inout3 615 je .Lecb_enc_four 616 movups 0x40($inp),$inout4 617 cmp \$0x60,$len 618 jb .Lecb_enc_five 619 movups 0x50($inp),$inout5 620 je .Lecb_enc_six 621 movdqu 0x60($inp),$inout6 622 call _aesni_encrypt8 623 movups $inout0,($out) 624 movups $inout1,0x10($out) 625 movups $inout2,0x20($out) 626 movups $inout3,0x30($out) 627 movups $inout4,0x40($out) 628 movups $inout5,0x50($out) 629 movups $inout6,0x60($out) 630 jmp .Lecb_ret 631.align 16 632.Lecb_enc_one: 633___ 634 &aesni_generate1("enc",$key,$rounds); 635$code.=<<___; 636 movups $inout0,($out) 637 jmp .Lecb_ret 638.align 16 639.Lecb_enc_two: 640 xorps $inout2,$inout2 641 call _aesni_encrypt3 642 movups $inout0,($out) 643 movups $inout1,0x10($out) 644 jmp .Lecb_ret 645.align 16 646.Lecb_enc_three: 647 call _aesni_encrypt3 648 movups $inout0,($out) 649 movups $inout1,0x10($out) 650 movups $inout2,0x20($out) 651 jmp .Lecb_ret 652.align 16 653.Lecb_enc_four: 654 call _aesni_encrypt4 655 movups $inout0,($out) 656 movups $inout1,0x10($out) 657 movups $inout2,0x20($out) 658 movups $inout3,0x30($out) 659 jmp .Lecb_ret 660.align 16 661.Lecb_enc_five: 662 xorps $inout5,$inout5 663 call _aesni_encrypt6 664 movups $inout0,($out) 665 movups $inout1,0x10($out) 666 movups $inout2,0x20($out) 667 movups $inout3,0x30($out) 668 movups $inout4,0x40($out) 669 jmp .Lecb_ret 670.align 16 671.Lecb_enc_six: 672 call _aesni_encrypt6 673 movups $inout0,($out) 674 movups $inout1,0x10($out) 675 movups $inout2,0x20($out) 676 movups $inout3,0x30($out) 677 movups $inout4,0x40($out) 678 movups $inout5,0x50($out) 679 jmp .Lecb_ret 680 #--------------------------- ECB DECRYPT ------------------------------# 681.align 16 682.Lecb_decrypt: 683 cmp \$0x80,$len 684 jb .Lecb_dec_tail 685 686 movdqu ($inp),$inout0 687 movdqu 0x10($inp),$inout1 688 movdqu 0x20($inp),$inout2 689 movdqu 0x30($inp),$inout3 690 movdqu 0x40($inp),$inout4 691 movdqu 0x50($inp),$inout5 692 movdqu 0x60($inp),$inout6 693 movdqu 0x70($inp),$inout7 694 lea 0x80($inp),$inp 695 sub \$0x80,$len 696 jmp .Lecb_dec_loop8_enter 697.align 16 698.Lecb_dec_loop8: 699 movups $inout0,($out) 700 mov $key_,$key # restore $key 701 movdqu ($inp),$inout0 702 mov $rnds_,$rounds # restore $rounds 703 movups $inout1,0x10($out) 704 movdqu 0x10($inp),$inout1 705 movups $inout2,0x20($out) 706 movdqu 0x20($inp),$inout2 707 movups $inout3,0x30($out) 708 movdqu 0x30($inp),$inout3 709 movups $inout4,0x40($out) 710 movdqu 0x40($inp),$inout4 711 movups $inout5,0x50($out) 712 movdqu 0x50($inp),$inout5 713 movups $inout6,0x60($out) 714 movdqu 0x60($inp),$inout6 715 movups $inout7,0x70($out) 716 lea 0x80($out),$out 717 movdqu 0x70($inp),$inout7 718 lea 0x80($inp),$inp 719.Lecb_dec_loop8_enter: 720 721 call _aesni_decrypt8 722 723 $movkey ($key_),$rndkey0 724 sub \$0x80,$len 725 jnc .Lecb_dec_loop8 726 727 movups $inout0,($out) 728 mov $key_,$key # restore $key 729 movups $inout1,0x10($out) 730 mov $rnds_,$rounds # restore $rounds 731 movups $inout2,0x20($out) 732 movups $inout3,0x30($out) 733 movups $inout4,0x40($out) 734 movups $inout5,0x50($out) 735 movups $inout6,0x60($out) 736 movups $inout7,0x70($out) 737 lea 0x80($out),$out 738 add \$0x80,$len 739 jz .Lecb_ret 740 741.Lecb_dec_tail: 742 movups ($inp),$inout0 743 cmp \$0x20,$len 744 jb .Lecb_dec_one 745 movups 0x10($inp),$inout1 746 je .Lecb_dec_two 747 movups 0x20($inp),$inout2 748 cmp \$0x40,$len 749 jb .Lecb_dec_three 750 movups 0x30($inp),$inout3 751 je .Lecb_dec_four 752 movups 0x40($inp),$inout4 753 cmp \$0x60,$len 754 jb .Lecb_dec_five 755 movups 0x50($inp),$inout5 756 je .Lecb_dec_six 757 movups 0x60($inp),$inout6 758 $movkey ($key),$rndkey0 759 call _aesni_decrypt8 760 movups $inout0,($out) 761 movups $inout1,0x10($out) 762 movups $inout2,0x20($out) 763 movups $inout3,0x30($out) 764 movups $inout4,0x40($out) 765 movups $inout5,0x50($out) 766 movups $inout6,0x60($out) 767 jmp .Lecb_ret 768.align 16 769.Lecb_dec_one: 770___ 771 &aesni_generate1("dec",$key,$rounds); 772$code.=<<___; 773 movups $inout0,($out) 774 jmp .Lecb_ret 775.align 16 776.Lecb_dec_two: 777 xorps $inout2,$inout2 778 call _aesni_decrypt3 779 movups $inout0,($out) 780 movups $inout1,0x10($out) 781 jmp .Lecb_ret 782.align 16 783.Lecb_dec_three: 784 call _aesni_decrypt3 785 movups $inout0,($out) 786 movups $inout1,0x10($out) 787 movups $inout2,0x20($out) 788 jmp .Lecb_ret 789.align 16 790.Lecb_dec_four: 791 call _aesni_decrypt4 792 movups $inout0,($out) 793 movups $inout1,0x10($out) 794 movups $inout2,0x20($out) 795 movups $inout3,0x30($out) 796 jmp .Lecb_ret 797.align 16 798.Lecb_dec_five: 799 xorps $inout5,$inout5 800 call _aesni_decrypt6 801 movups $inout0,($out) 802 movups $inout1,0x10($out) 803 movups $inout2,0x20($out) 804 movups $inout3,0x30($out) 805 movups $inout4,0x40($out) 806 jmp .Lecb_ret 807.align 16 808.Lecb_dec_six: 809 call _aesni_decrypt6 810 movups $inout0,($out) 811 movups $inout1,0x10($out) 812 movups $inout2,0x20($out) 813 movups $inout3,0x30($out) 814 movups $inout4,0x40($out) 815 movups $inout5,0x50($out) 816 817.Lecb_ret: 818___ 819$code.=<<___ if ($win64); 820 movaps (%rsp),%xmm6 821 movaps 0x10(%rsp),%xmm7 822 movaps 0x20(%rsp),%xmm8 823 movaps 0x30(%rsp),%xmm9 824 lea 0x58(%rsp),%rsp 825.Lecb_enc_ret: 826___ 827$code.=<<___; 828 ret 829.size aesni_ecb_encrypt,.-aesni_ecb_encrypt 830___ 831 832{ 833###################################################################### 834# void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out, 835# size_t blocks, const AES_KEY *key, 836# const char *ivec,char *cmac); 837# 838# Handles only complete blocks, operates on 64-bit counter and 839# does not update *ivec! Nor does it finalize CMAC value 840# (see engine/eng_aesni.c for details) 841# 842{ 843my $cmac="%r9"; # 6th argument 844 845my $increment="%xmm6"; 846my $bswap_mask="%xmm7"; 847 848$code.=<<___; 849.globl aesni_ccm64_encrypt_blocks 850.type aesni_ccm64_encrypt_blocks,\@function,6 851.align 16 852aesni_ccm64_encrypt_blocks: 853___ 854$code.=<<___ if ($win64); 855 lea -0x58(%rsp),%rsp 856 movaps %xmm6,(%rsp) 857 movaps %xmm7,0x10(%rsp) 858 movaps %xmm8,0x20(%rsp) 859 movaps %xmm9,0x30(%rsp) 860.Lccm64_enc_body: 861___ 862$code.=<<___; 863 mov 240($key),$rounds # key->rounds 864 movdqu ($ivp),$iv 865 movdqa .Lincrement64(%rip),$increment 866 movdqa .Lbswap_mask(%rip),$bswap_mask 867 868 shr \$1,$rounds 869 lea 0($key),$key_ 870 movdqu ($cmac),$inout1 871 movdqa $iv,$inout0 872 mov $rounds,$rnds_ 873 pshufb $bswap_mask,$iv 874 jmp .Lccm64_enc_outer 875.align 16 876.Lccm64_enc_outer: 877 $movkey ($key_),$rndkey0 878 mov $rnds_,$rounds 879 movups ($inp),$in0 # load inp 880 881 xorps $rndkey0,$inout0 # counter 882 $movkey 16($key_),$rndkey1 883 xorps $in0,$rndkey0 884 lea 32($key_),$key 885 xorps $rndkey0,$inout1 # cmac^=inp 886 $movkey ($key),$rndkey0 887 888.Lccm64_enc2_loop: 889 aesenc $rndkey1,$inout0 890 dec $rounds 891 aesenc $rndkey1,$inout1 892 $movkey 16($key),$rndkey1 893 aesenc $rndkey0,$inout0 894 lea 32($key),$key 895 aesenc $rndkey0,$inout1 896 $movkey 0($key),$rndkey0 897 jnz .Lccm64_enc2_loop 898 aesenc $rndkey1,$inout0 899 aesenc $rndkey1,$inout1 900 paddq $increment,$iv 901 aesenclast $rndkey0,$inout0 902 aesenclast $rndkey0,$inout1 903 904 dec $len 905 lea 16($inp),$inp 906 xorps $inout0,$in0 # inp ^= E(iv) 907 movdqa $iv,$inout0 908 movups $in0,($out) # save output 909 lea 16($out),$out 910 pshufb $bswap_mask,$inout0 911 jnz .Lccm64_enc_outer 912 913 movups $inout1,($cmac) 914___ 915$code.=<<___ if ($win64); 916 movaps (%rsp),%xmm6 917 movaps 0x10(%rsp),%xmm7 918 movaps 0x20(%rsp),%xmm8 919 movaps 0x30(%rsp),%xmm9 920 lea 0x58(%rsp),%rsp 921.Lccm64_enc_ret: 922___ 923$code.=<<___; 924 ret 925.size aesni_ccm64_encrypt_blocks,.-aesni_ccm64_encrypt_blocks 926___ 927###################################################################### 928$code.=<<___; 929.globl aesni_ccm64_decrypt_blocks 930.type aesni_ccm64_decrypt_blocks,\@function,6 931.align 16 932aesni_ccm64_decrypt_blocks: 933___ 934$code.=<<___ if ($win64); 935 lea -0x58(%rsp),%rsp 936 movaps %xmm6,(%rsp) 937 movaps %xmm7,0x10(%rsp) 938 movaps %xmm8,0x20(%rsp) 939 movaps %xmm9,0x30(%rsp) 940.Lccm64_dec_body: 941___ 942$code.=<<___; 943 mov 240($key),$rounds # key->rounds 944 movups ($ivp),$iv 945 movdqu ($cmac),$inout1 946 movdqa .Lincrement64(%rip),$increment 947 movdqa .Lbswap_mask(%rip),$bswap_mask 948 949 movaps $iv,$inout0 950 mov $rounds,$rnds_ 951 mov $key,$key_ 952 pshufb $bswap_mask,$iv 953___ 954 &aesni_generate1("enc",$key,$rounds); 955$code.=<<___; 956 movups ($inp),$in0 # load inp 957 paddq $increment,$iv 958 lea 16($inp),$inp 959 jmp .Lccm64_dec_outer 960.align 16 961.Lccm64_dec_outer: 962 xorps $inout0,$in0 # inp ^= E(iv) 963 movdqa $iv,$inout0 964 mov $rnds_,$rounds 965 movups $in0,($out) # save output 966 lea 16($out),$out 967 pshufb $bswap_mask,$inout0 968 969 sub \$1,$len 970 jz .Lccm64_dec_break 971 972 $movkey ($key_),$rndkey0 973 shr \$1,$rounds 974 $movkey 16($key_),$rndkey1 975 xorps $rndkey0,$in0 976 lea 32($key_),$key 977 xorps $rndkey0,$inout0 978 xorps $in0,$inout1 # cmac^=out 979 $movkey ($key),$rndkey0 980 981.Lccm64_dec2_loop: 982 aesenc $rndkey1,$inout0 983 dec $rounds 984 aesenc $rndkey1,$inout1 985 $movkey 16($key),$rndkey1 986 aesenc $rndkey0,$inout0 987 lea 32($key),$key 988 aesenc $rndkey0,$inout1 989 $movkey 0($key),$rndkey0 990 jnz .Lccm64_dec2_loop 991 movups ($inp),$in0 # load inp 992 paddq $increment,$iv 993 aesenc $rndkey1,$inout0 994 aesenc $rndkey1,$inout1 995 lea 16($inp),$inp 996 aesenclast $rndkey0,$inout0 997 aesenclast $rndkey0,$inout1 998 jmp .Lccm64_dec_outer 999 1000.align 16 1001.Lccm64_dec_break: 1002 #xorps $in0,$inout1 # cmac^=out 1003___ 1004 &aesni_generate1("enc",$key_,$rounds,$inout1,$in0); 1005$code.=<<___; 1006 movups $inout1,($cmac) 1007___ 1008$code.=<<___ if ($win64); 1009 movaps (%rsp),%xmm6 1010 movaps 0x10(%rsp),%xmm7 1011 movaps 0x20(%rsp),%xmm8 1012 movaps 0x30(%rsp),%xmm9 1013 lea 0x58(%rsp),%rsp 1014.Lccm64_dec_ret: 1015___ 1016$code.=<<___; 1017 ret 1018.size aesni_ccm64_decrypt_blocks,.-aesni_ccm64_decrypt_blocks 1019___ 1020} 1021###################################################################### 1022# void aesni_ctr32_encrypt_blocks (const void *in, void *out, 1023# size_t blocks, const AES_KEY *key, 1024# const char *ivec); 1025# 1026# Handles only complete blocks, operates on 32-bit counter and 1027# does not update *ivec! (see engine/eng_aesni.c for details) 1028# 1029{ 1030my $reserved = $win64?0:-0x28; 1031my ($in0,$in1,$in2,$in3)=map("%xmm$_",(8..11)); 1032my ($iv0,$iv1,$ivec)=("%xmm12","%xmm13","%xmm14"); 1033my $bswap_mask="%xmm15"; 1034 1035$code.=<<___; 1036.globl aesni_ctr32_encrypt_blocks 1037.type aesni_ctr32_encrypt_blocks,\@function,5 1038.align 16 1039aesni_ctr32_encrypt_blocks: 1040___ 1041$code.=<<___ if ($win64); 1042 lea -0xc8(%rsp),%rsp 1043 movaps %xmm6,0x20(%rsp) 1044 movaps %xmm7,0x30(%rsp) 1045 movaps %xmm8,0x40(%rsp) 1046 movaps %xmm9,0x50(%rsp) 1047 movaps %xmm10,0x60(%rsp) 1048 movaps %xmm11,0x70(%rsp) 1049 movaps %xmm12,0x80(%rsp) 1050 movaps %xmm13,0x90(%rsp) 1051 movaps %xmm14,0xa0(%rsp) 1052 movaps %xmm15,0xb0(%rsp) 1053.Lctr32_body: 1054___ 1055$code.=<<___; 1056 cmp \$1,$len 1057 je .Lctr32_one_shortcut 1058 1059 movdqu ($ivp),$ivec 1060 movdqa .Lbswap_mask(%rip),$bswap_mask 1061 xor $rounds,$rounds 1062 pextrd \$3,$ivec,$rnds_ # pull 32-bit counter 1063 pinsrd \$3,$rounds,$ivec # wipe 32-bit counter 1064 1065 mov 240($key),$rounds # key->rounds 1066 bswap $rnds_ 1067 pxor $iv0,$iv0 # vector of 3 32-bit counters 1068 pxor $iv1,$iv1 # vector of 3 32-bit counters 1069 pinsrd \$0,$rnds_,$iv0 1070 lea 3($rnds_),$key_ 1071 pinsrd \$0,$key_,$iv1 1072 inc $rnds_ 1073 pinsrd \$1,$rnds_,$iv0 1074 inc $key_ 1075 pinsrd \$1,$key_,$iv1 1076 inc $rnds_ 1077 pinsrd \$2,$rnds_,$iv0 1078 inc $key_ 1079 pinsrd \$2,$key_,$iv1 1080 movdqa $iv0,$reserved(%rsp) 1081 pshufb $bswap_mask,$iv0 1082 movdqa $iv1,`$reserved+0x10`(%rsp) 1083 pshufb $bswap_mask,$iv1 1084 1085 pshufd \$`3<<6`,$iv0,$inout0 # place counter to upper dword 1086 pshufd \$`2<<6`,$iv0,$inout1 1087 pshufd \$`1<<6`,$iv0,$inout2 1088 cmp \$6,$len 1089 jb .Lctr32_tail 1090 shr \$1,$rounds 1091 mov $key,$key_ # backup $key 1092 mov $rounds,$rnds_ # backup $rounds 1093 sub \$6,$len 1094 jmp .Lctr32_loop6 1095 1096.align 16 1097.Lctr32_loop6: 1098 pshufd \$`3<<6`,$iv1,$inout3 1099 por $ivec,$inout0 # merge counter-less ivec 1100 $movkey ($key_),$rndkey0 1101 pshufd \$`2<<6`,$iv1,$inout4 1102 por $ivec,$inout1 1103 $movkey 16($key_),$rndkey1 1104 pshufd \$`1<<6`,$iv1,$inout5 1105 por $ivec,$inout2 1106 por $ivec,$inout3 1107 xorps $rndkey0,$inout0 1108 por $ivec,$inout4 1109 por $ivec,$inout5 1110 1111 # inline _aesni_encrypt6 and interleave last rounds 1112 # with own code... 1113 1114 pxor $rndkey0,$inout1 1115 aesenc $rndkey1,$inout0 1116 lea 32($key_),$key 1117 pxor $rndkey0,$inout2 1118 aesenc $rndkey1,$inout1 1119 movdqa .Lincrement32(%rip),$iv1 1120 pxor $rndkey0,$inout3 1121 aesenc $rndkey1,$inout2 1122 movdqa $reserved(%rsp),$iv0 1123 pxor $rndkey0,$inout4 1124 aesenc $rndkey1,$inout3 1125 pxor $rndkey0,$inout5 1126 $movkey ($key),$rndkey0 1127 dec $rounds 1128 aesenc $rndkey1,$inout4 1129 aesenc $rndkey1,$inout5 1130 jmp .Lctr32_enc_loop6_enter 1131.align 16 1132.Lctr32_enc_loop6: 1133 aesenc $rndkey1,$inout0 1134 aesenc $rndkey1,$inout1 1135 dec $rounds 1136 aesenc $rndkey1,$inout2 1137 aesenc $rndkey1,$inout3 1138 aesenc $rndkey1,$inout4 1139 aesenc $rndkey1,$inout5 1140.Lctr32_enc_loop6_enter: 1141 $movkey 16($key),$rndkey1 1142 aesenc $rndkey0,$inout0 1143 aesenc $rndkey0,$inout1 1144 lea 32($key),$key 1145 aesenc $rndkey0,$inout2 1146 aesenc $rndkey0,$inout3 1147 aesenc $rndkey0,$inout4 1148 aesenc $rndkey0,$inout5 1149 $movkey ($key),$rndkey0 1150 jnz .Lctr32_enc_loop6 1151 1152 aesenc $rndkey1,$inout0 1153 paddd $iv1,$iv0 # increment counter vector 1154 aesenc $rndkey1,$inout1 1155 paddd `$reserved+0x10`(%rsp),$iv1 1156 aesenc $rndkey1,$inout2 1157 movdqa $iv0,$reserved(%rsp) # save counter vector 1158 aesenc $rndkey1,$inout3 1159 movdqa $iv1,`$reserved+0x10`(%rsp) 1160 aesenc $rndkey1,$inout4 1161 pshufb $bswap_mask,$iv0 # byte swap 1162 aesenc $rndkey1,$inout5 1163 pshufb $bswap_mask,$iv1 1164 1165 aesenclast $rndkey0,$inout0 1166 movups ($inp),$in0 # load input 1167 aesenclast $rndkey0,$inout1 1168 movups 0x10($inp),$in1 1169 aesenclast $rndkey0,$inout2 1170 movups 0x20($inp),$in2 1171 aesenclast $rndkey0,$inout3 1172 movups 0x30($inp),$in3 1173 aesenclast $rndkey0,$inout4 1174 movups 0x40($inp),$rndkey1 1175 aesenclast $rndkey0,$inout5 1176 movups 0x50($inp),$rndkey0 1177 lea 0x60($inp),$inp 1178 1179 xorps $inout0,$in0 # xor 1180 pshufd \$`3<<6`,$iv0,$inout0 1181 xorps $inout1,$in1 1182 pshufd \$`2<<6`,$iv0,$inout1 1183 movups $in0,($out) # store output 1184 xorps $inout2,$in2 1185 pshufd \$`1<<6`,$iv0,$inout2 1186 movups $in1,0x10($out) 1187 xorps $inout3,$in3 1188 movups $in2,0x20($out) 1189 xorps $inout4,$rndkey1 1190 movups $in3,0x30($out) 1191 xorps $inout5,$rndkey0 1192 movups $rndkey1,0x40($out) 1193 movups $rndkey0,0x50($out) 1194 lea 0x60($out),$out 1195 mov $rnds_,$rounds 1196 sub \$6,$len 1197 jnc .Lctr32_loop6 1198 1199 add \$6,$len 1200 jz .Lctr32_done 1201 mov $key_,$key # restore $key 1202 lea 1($rounds,$rounds),$rounds # restore original value 1203 1204.Lctr32_tail: 1205 por $ivec,$inout0 1206 movups ($inp),$in0 1207 cmp \$2,$len 1208 jb .Lctr32_one 1209 1210 por $ivec,$inout1 1211 movups 0x10($inp),$in1 1212 je .Lctr32_two 1213 1214 pshufd \$`3<<6`,$iv1,$inout3 1215 por $ivec,$inout2 1216 movups 0x20($inp),$in2 1217 cmp \$4,$len 1218 jb .Lctr32_three 1219 1220 pshufd \$`2<<6`,$iv1,$inout4 1221 por $ivec,$inout3 1222 movups 0x30($inp),$in3 1223 je .Lctr32_four 1224 1225 por $ivec,$inout4 1226 xorps $inout5,$inout5 1227 1228 call _aesni_encrypt6 1229 1230 movups 0x40($inp),$rndkey1 1231 xorps $inout0,$in0 1232 xorps $inout1,$in1 1233 movups $in0,($out) 1234 xorps $inout2,$in2 1235 movups $in1,0x10($out) 1236 xorps $inout3,$in3 1237 movups $in2,0x20($out) 1238 xorps $inout4,$rndkey1 1239 movups $in3,0x30($out) 1240 movups $rndkey1,0x40($out) 1241 jmp .Lctr32_done 1242 1243.align 16 1244.Lctr32_one_shortcut: 1245 movups ($ivp),$inout0 1246 movups ($inp),$in0 1247 mov 240($key),$rounds # key->rounds 1248.Lctr32_one: 1249___ 1250 &aesni_generate1("enc",$key,$rounds); 1251$code.=<<___; 1252 xorps $inout0,$in0 1253 movups $in0,($out) 1254 jmp .Lctr32_done 1255 1256.align 16 1257.Lctr32_two: 1258 xorps $inout2,$inout2 1259 call _aesni_encrypt3 1260 xorps $inout0,$in0 1261 xorps $inout1,$in1 1262 movups $in0,($out) 1263 movups $in1,0x10($out) 1264 jmp .Lctr32_done 1265 1266.align 16 1267.Lctr32_three: 1268 call _aesni_encrypt3 1269 xorps $inout0,$in0 1270 xorps $inout1,$in1 1271 movups $in0,($out) 1272 xorps $inout2,$in2 1273 movups $in1,0x10($out) 1274 movups $in2,0x20($out) 1275 jmp .Lctr32_done 1276 1277.align 16 1278.Lctr32_four: 1279 call _aesni_encrypt4 1280 xorps $inout0,$in0 1281 xorps $inout1,$in1 1282 movups $in0,($out) 1283 xorps $inout2,$in2 1284 movups $in1,0x10($out) 1285 xorps $inout3,$in3 1286 movups $in2,0x20($out) 1287 movups $in3,0x30($out) 1288 1289.Lctr32_done: 1290___ 1291$code.=<<___ if ($win64); 1292 movaps 0x20(%rsp),%xmm6 1293 movaps 0x30(%rsp),%xmm7 1294 movaps 0x40(%rsp),%xmm8 1295 movaps 0x50(%rsp),%xmm9 1296 movaps 0x60(%rsp),%xmm10 1297 movaps 0x70(%rsp),%xmm11 1298 movaps 0x80(%rsp),%xmm12 1299 movaps 0x90(%rsp),%xmm13 1300 movaps 0xa0(%rsp),%xmm14 1301 movaps 0xb0(%rsp),%xmm15 1302 lea 0xc8(%rsp),%rsp 1303.Lctr32_ret: 1304___ 1305$code.=<<___; 1306 ret 1307.size aesni_ctr32_encrypt_blocks,.-aesni_ctr32_encrypt_blocks 1308___ 1309} 1310 1311###################################################################### 1312# void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len, 1313# const AES_KEY *key1, const AES_KEY *key2 1314# const unsigned char iv[16]); 1315# 1316{ 1317my @tweak=map("%xmm$_",(10..15)); 1318my ($twmask,$twres,$twtmp)=("%xmm8","%xmm9",@tweak[4]); 1319my ($key2,$ivp,$len_)=("%r8","%r9","%r9"); 1320my $frame_size = 0x68 + ($win64?160:0); 1321 1322$code.=<<___; 1323.globl aesni_xts_encrypt 1324.type aesni_xts_encrypt,\@function,6 1325.align 16 1326aesni_xts_encrypt: 1327 lea -$frame_size(%rsp),%rsp 1328___ 1329$code.=<<___ if ($win64); 1330 movaps %xmm6,0x60(%rsp) 1331 movaps %xmm7,0x70(%rsp) 1332 movaps %xmm8,0x80(%rsp) 1333 movaps %xmm9,0x90(%rsp) 1334 movaps %xmm10,0xa0(%rsp) 1335 movaps %xmm11,0xb0(%rsp) 1336 movaps %xmm12,0xc0(%rsp) 1337 movaps %xmm13,0xd0(%rsp) 1338 movaps %xmm14,0xe0(%rsp) 1339 movaps %xmm15,0xf0(%rsp) 1340.Lxts_enc_body: 1341___ 1342$code.=<<___; 1343 movups ($ivp),@tweak[5] # load clear-text tweak 1344 mov 240(%r8),$rounds # key2->rounds 1345 mov 240($key),$rnds_ # key1->rounds 1346___ 1347 # generate the tweak 1348 &aesni_generate1("enc",$key2,$rounds,@tweak[5]); 1349$code.=<<___; 1350 mov $key,$key_ # backup $key 1351 mov $rnds_,$rounds # backup $rounds 1352 mov $len,$len_ # backup $len 1353 and \$-16,$len 1354 1355 movdqa .Lxts_magic(%rip),$twmask 1356 pxor $twtmp,$twtmp 1357 pcmpgtd @tweak[5],$twtmp # broadcast upper bits 1358___ 1359 for ($i=0;$i<4;$i++) { 1360 $code.=<<___; 1361 pshufd \$0x13,$twtmp,$twres 1362 pxor $twtmp,$twtmp 1363 movdqa @tweak[5],@tweak[$i] 1364 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1365 pand $twmask,$twres # isolate carry and residue 1366 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1367 pxor $twres,@tweak[5] 1368___ 1369 } 1370$code.=<<___; 1371 sub \$16*6,$len 1372 jc .Lxts_enc_short 1373 1374 shr \$1,$rounds 1375 sub \$1,$rounds 1376 mov $rounds,$rnds_ 1377 jmp .Lxts_enc_grandloop 1378 1379.align 16 1380.Lxts_enc_grandloop: 1381 pshufd \$0x13,$twtmp,$twres 1382 movdqa @tweak[5],@tweak[4] 1383 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1384 movdqu `16*0`($inp),$inout0 # load input 1385 pand $twmask,$twres # isolate carry and residue 1386 movdqu `16*1`($inp),$inout1 1387 pxor $twres,@tweak[5] 1388 1389 movdqu `16*2`($inp),$inout2 1390 pxor @tweak[0],$inout0 # input^=tweak 1391 movdqu `16*3`($inp),$inout3 1392 pxor @tweak[1],$inout1 1393 movdqu `16*4`($inp),$inout4 1394 pxor @tweak[2],$inout2 1395 movdqu `16*5`($inp),$inout5 1396 lea `16*6`($inp),$inp 1397 pxor @tweak[3],$inout3 1398 $movkey ($key_),$rndkey0 1399 pxor @tweak[4],$inout4 1400 pxor @tweak[5],$inout5 1401 1402 # inline _aesni_encrypt6 and interleave first and last rounds 1403 # with own code... 1404 $movkey 16($key_),$rndkey1 1405 pxor $rndkey0,$inout0 1406 pxor $rndkey0,$inout1 1407 movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks 1408 aesenc $rndkey1,$inout0 1409 lea 32($key_),$key 1410 pxor $rndkey0,$inout2 1411 movdqa @tweak[1],`16*1`(%rsp) 1412 aesenc $rndkey1,$inout1 1413 pxor $rndkey0,$inout3 1414 movdqa @tweak[2],`16*2`(%rsp) 1415 aesenc $rndkey1,$inout2 1416 pxor $rndkey0,$inout4 1417 movdqa @tweak[3],`16*3`(%rsp) 1418 aesenc $rndkey1,$inout3 1419 pxor $rndkey0,$inout5 1420 $movkey ($key),$rndkey0 1421 dec $rounds 1422 movdqa @tweak[4],`16*4`(%rsp) 1423 aesenc $rndkey1,$inout4 1424 movdqa @tweak[5],`16*5`(%rsp) 1425 aesenc $rndkey1,$inout5 1426 pxor $twtmp,$twtmp 1427 pcmpgtd @tweak[5],$twtmp 1428 jmp .Lxts_enc_loop6_enter 1429 1430.align 16 1431.Lxts_enc_loop6: 1432 aesenc $rndkey1,$inout0 1433 aesenc $rndkey1,$inout1 1434 dec $rounds 1435 aesenc $rndkey1,$inout2 1436 aesenc $rndkey1,$inout3 1437 aesenc $rndkey1,$inout4 1438 aesenc $rndkey1,$inout5 1439.Lxts_enc_loop6_enter: 1440 $movkey 16($key),$rndkey1 1441 aesenc $rndkey0,$inout0 1442 aesenc $rndkey0,$inout1 1443 lea 32($key),$key 1444 aesenc $rndkey0,$inout2 1445 aesenc $rndkey0,$inout3 1446 aesenc $rndkey0,$inout4 1447 aesenc $rndkey0,$inout5 1448 $movkey ($key),$rndkey0 1449 jnz .Lxts_enc_loop6 1450 1451 pshufd \$0x13,$twtmp,$twres 1452 pxor $twtmp,$twtmp 1453 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1454 aesenc $rndkey1,$inout0 1455 pand $twmask,$twres # isolate carry and residue 1456 aesenc $rndkey1,$inout1 1457 pcmpgtd @tweak[5],$twtmp # broadcast upper bits 1458 aesenc $rndkey1,$inout2 1459 pxor $twres,@tweak[5] 1460 aesenc $rndkey1,$inout3 1461 aesenc $rndkey1,$inout4 1462 aesenc $rndkey1,$inout5 1463 $movkey 16($key),$rndkey1 1464 1465 pshufd \$0x13,$twtmp,$twres 1466 pxor $twtmp,$twtmp 1467 movdqa @tweak[5],@tweak[0] 1468 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1469 aesenc $rndkey0,$inout0 1470 pand $twmask,$twres # isolate carry and residue 1471 aesenc $rndkey0,$inout1 1472 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1473 aesenc $rndkey0,$inout2 1474 pxor $twres,@tweak[5] 1475 aesenc $rndkey0,$inout3 1476 aesenc $rndkey0,$inout4 1477 aesenc $rndkey0,$inout5 1478 $movkey 32($key),$rndkey0 1479 1480 pshufd \$0x13,$twtmp,$twres 1481 pxor $twtmp,$twtmp 1482 movdqa @tweak[5],@tweak[1] 1483 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1484 aesenc $rndkey1,$inout0 1485 pand $twmask,$twres # isolate carry and residue 1486 aesenc $rndkey1,$inout1 1487 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1488 aesenc $rndkey1,$inout2 1489 pxor $twres,@tweak[5] 1490 aesenc $rndkey1,$inout3 1491 aesenc $rndkey1,$inout4 1492 aesenc $rndkey1,$inout5 1493 1494 pshufd \$0x13,$twtmp,$twres 1495 pxor $twtmp,$twtmp 1496 movdqa @tweak[5],@tweak[2] 1497 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1498 aesenclast $rndkey0,$inout0 1499 pand $twmask,$twres # isolate carry and residue 1500 aesenclast $rndkey0,$inout1 1501 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1502 aesenclast $rndkey0,$inout2 1503 pxor $twres,@tweak[5] 1504 aesenclast $rndkey0,$inout3 1505 aesenclast $rndkey0,$inout4 1506 aesenclast $rndkey0,$inout5 1507 1508 pshufd \$0x13,$twtmp,$twres 1509 pxor $twtmp,$twtmp 1510 movdqa @tweak[5],@tweak[3] 1511 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1512 xorps `16*0`(%rsp),$inout0 # output^=tweak 1513 pand $twmask,$twres # isolate carry and residue 1514 xorps `16*1`(%rsp),$inout1 1515 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1516 pxor $twres,@tweak[5] 1517 1518 xorps `16*2`(%rsp),$inout2 1519 movups $inout0,`16*0`($out) # write output 1520 xorps `16*3`(%rsp),$inout3 1521 movups $inout1,`16*1`($out) 1522 xorps `16*4`(%rsp),$inout4 1523 movups $inout2,`16*2`($out) 1524 xorps `16*5`(%rsp),$inout5 1525 movups $inout3,`16*3`($out) 1526 mov $rnds_,$rounds # restore $rounds 1527 movups $inout4,`16*4`($out) 1528 movups $inout5,`16*5`($out) 1529 lea `16*6`($out),$out 1530 sub \$16*6,$len 1531 jnc .Lxts_enc_grandloop 1532 1533 lea 3($rounds,$rounds),$rounds # restore original value 1534 mov $key_,$key # restore $key 1535 mov $rounds,$rnds_ # backup $rounds 1536 1537.Lxts_enc_short: 1538 add \$16*6,$len 1539 jz .Lxts_enc_done 1540 1541 cmp \$0x20,$len 1542 jb .Lxts_enc_one 1543 je .Lxts_enc_two 1544 1545 cmp \$0x40,$len 1546 jb .Lxts_enc_three 1547 je .Lxts_enc_four 1548 1549 pshufd \$0x13,$twtmp,$twres 1550 movdqa @tweak[5],@tweak[4] 1551 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1552 movdqu ($inp),$inout0 1553 pand $twmask,$twres # isolate carry and residue 1554 movdqu 16*1($inp),$inout1 1555 pxor $twres,@tweak[5] 1556 1557 movdqu 16*2($inp),$inout2 1558 pxor @tweak[0],$inout0 1559 movdqu 16*3($inp),$inout3 1560 pxor @tweak[1],$inout1 1561 movdqu 16*4($inp),$inout4 1562 lea 16*5($inp),$inp 1563 pxor @tweak[2],$inout2 1564 pxor @tweak[3],$inout3 1565 pxor @tweak[4],$inout4 1566 1567 call _aesni_encrypt6 1568 1569 xorps @tweak[0],$inout0 1570 movdqa @tweak[5],@tweak[0] 1571 xorps @tweak[1],$inout1 1572 xorps @tweak[2],$inout2 1573 movdqu $inout0,($out) 1574 xorps @tweak[3],$inout3 1575 movdqu $inout1,16*1($out) 1576 xorps @tweak[4],$inout4 1577 movdqu $inout2,16*2($out) 1578 movdqu $inout3,16*3($out) 1579 movdqu $inout4,16*4($out) 1580 lea 16*5($out),$out 1581 jmp .Lxts_enc_done 1582 1583.align 16 1584.Lxts_enc_one: 1585 movups ($inp),$inout0 1586 lea 16*1($inp),$inp 1587 xorps @tweak[0],$inout0 1588___ 1589 &aesni_generate1("enc",$key,$rounds); 1590$code.=<<___; 1591 xorps @tweak[0],$inout0 1592 movdqa @tweak[1],@tweak[0] 1593 movups $inout0,($out) 1594 lea 16*1($out),$out 1595 jmp .Lxts_enc_done 1596 1597.align 16 1598.Lxts_enc_two: 1599 movups ($inp),$inout0 1600 movups 16($inp),$inout1 1601 lea 32($inp),$inp 1602 xorps @tweak[0],$inout0 1603 xorps @tweak[1],$inout1 1604 1605 call _aesni_encrypt3 1606 1607 xorps @tweak[0],$inout0 1608 movdqa @tweak[2],@tweak[0] 1609 xorps @tweak[1],$inout1 1610 movups $inout0,($out) 1611 movups $inout1,16*1($out) 1612 lea 16*2($out),$out 1613 jmp .Lxts_enc_done 1614 1615.align 16 1616.Lxts_enc_three: 1617 movups ($inp),$inout0 1618 movups 16*1($inp),$inout1 1619 movups 16*2($inp),$inout2 1620 lea 16*3($inp),$inp 1621 xorps @tweak[0],$inout0 1622 xorps @tweak[1],$inout1 1623 xorps @tweak[2],$inout2 1624 1625 call _aesni_encrypt3 1626 1627 xorps @tweak[0],$inout0 1628 movdqa @tweak[3],@tweak[0] 1629 xorps @tweak[1],$inout1 1630 xorps @tweak[2],$inout2 1631 movups $inout0,($out) 1632 movups $inout1,16*1($out) 1633 movups $inout2,16*2($out) 1634 lea 16*3($out),$out 1635 jmp .Lxts_enc_done 1636 1637.align 16 1638.Lxts_enc_four: 1639 movups ($inp),$inout0 1640 movups 16*1($inp),$inout1 1641 movups 16*2($inp),$inout2 1642 xorps @tweak[0],$inout0 1643 movups 16*3($inp),$inout3 1644 lea 16*4($inp),$inp 1645 xorps @tweak[1],$inout1 1646 xorps @tweak[2],$inout2 1647 xorps @tweak[3],$inout3 1648 1649 call _aesni_encrypt4 1650 1651 xorps @tweak[0],$inout0 1652 movdqa @tweak[5],@tweak[0] 1653 xorps @tweak[1],$inout1 1654 xorps @tweak[2],$inout2 1655 movups $inout0,($out) 1656 xorps @tweak[3],$inout3 1657 movups $inout1,16*1($out) 1658 movups $inout2,16*2($out) 1659 movups $inout3,16*3($out) 1660 lea 16*4($out),$out 1661 jmp .Lxts_enc_done 1662 1663.align 16 1664.Lxts_enc_done: 1665 and \$15,$len_ 1666 jz .Lxts_enc_ret 1667 mov $len_,$len 1668 1669.Lxts_enc_steal: 1670 movzb ($inp),%eax # borrow $rounds ... 1671 movzb -16($out),%ecx # ... and $key 1672 lea 1($inp),$inp 1673 mov %al,-16($out) 1674 mov %cl,0($out) 1675 lea 1($out),$out 1676 sub \$1,$len 1677 jnz .Lxts_enc_steal 1678 1679 sub $len_,$out # rewind $out 1680 mov $key_,$key # restore $key 1681 mov $rnds_,$rounds # restore $rounds 1682 1683 movups -16($out),$inout0 1684 xorps @tweak[0],$inout0 1685___ 1686 &aesni_generate1("enc",$key,$rounds); 1687$code.=<<___; 1688 xorps @tweak[0],$inout0 1689 movups $inout0,-16($out) 1690 1691.Lxts_enc_ret: 1692___ 1693$code.=<<___ if ($win64); 1694 movaps 0x60(%rsp),%xmm6 1695 movaps 0x70(%rsp),%xmm7 1696 movaps 0x80(%rsp),%xmm8 1697 movaps 0x90(%rsp),%xmm9 1698 movaps 0xa0(%rsp),%xmm10 1699 movaps 0xb0(%rsp),%xmm11 1700 movaps 0xc0(%rsp),%xmm12 1701 movaps 0xd0(%rsp),%xmm13 1702 movaps 0xe0(%rsp),%xmm14 1703 movaps 0xf0(%rsp),%xmm15 1704___ 1705$code.=<<___; 1706 lea $frame_size(%rsp),%rsp 1707.Lxts_enc_epilogue: 1708 ret 1709.size aesni_xts_encrypt,.-aesni_xts_encrypt 1710___ 1711 1712$code.=<<___; 1713.globl aesni_xts_decrypt 1714.type aesni_xts_decrypt,\@function,6 1715.align 16 1716aesni_xts_decrypt: 1717 lea -$frame_size(%rsp),%rsp 1718___ 1719$code.=<<___ if ($win64); 1720 movaps %xmm6,0x60(%rsp) 1721 movaps %xmm7,0x70(%rsp) 1722 movaps %xmm8,0x80(%rsp) 1723 movaps %xmm9,0x90(%rsp) 1724 movaps %xmm10,0xa0(%rsp) 1725 movaps %xmm11,0xb0(%rsp) 1726 movaps %xmm12,0xc0(%rsp) 1727 movaps %xmm13,0xd0(%rsp) 1728 movaps %xmm14,0xe0(%rsp) 1729 movaps %xmm15,0xf0(%rsp) 1730.Lxts_dec_body: 1731___ 1732$code.=<<___; 1733 movups ($ivp),@tweak[5] # load clear-text tweak 1734 mov 240($key2),$rounds # key2->rounds 1735 mov 240($key),$rnds_ # key1->rounds 1736___ 1737 # generate the tweak 1738 &aesni_generate1("enc",$key2,$rounds,@tweak[5]); 1739$code.=<<___; 1740 xor %eax,%eax # if ($len%16) len-=16; 1741 test \$15,$len 1742 setnz %al 1743 shl \$4,%rax 1744 sub %rax,$len 1745 1746 mov $key,$key_ # backup $key 1747 mov $rnds_,$rounds # backup $rounds 1748 mov $len,$len_ # backup $len 1749 and \$-16,$len 1750 1751 movdqa .Lxts_magic(%rip),$twmask 1752 pxor $twtmp,$twtmp 1753 pcmpgtd @tweak[5],$twtmp # broadcast upper bits 1754___ 1755 for ($i=0;$i<4;$i++) { 1756 $code.=<<___; 1757 pshufd \$0x13,$twtmp,$twres 1758 pxor $twtmp,$twtmp 1759 movdqa @tweak[5],@tweak[$i] 1760 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1761 pand $twmask,$twres # isolate carry and residue 1762 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1763 pxor $twres,@tweak[5] 1764___ 1765 } 1766$code.=<<___; 1767 sub \$16*6,$len 1768 jc .Lxts_dec_short 1769 1770 shr \$1,$rounds 1771 sub \$1,$rounds 1772 mov $rounds,$rnds_ 1773 jmp .Lxts_dec_grandloop 1774 1775.align 16 1776.Lxts_dec_grandloop: 1777 pshufd \$0x13,$twtmp,$twres 1778 movdqa @tweak[5],@tweak[4] 1779 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1780 movdqu `16*0`($inp),$inout0 # load input 1781 pand $twmask,$twres # isolate carry and residue 1782 movdqu `16*1`($inp),$inout1 1783 pxor $twres,@tweak[5] 1784 1785 movdqu `16*2`($inp),$inout2 1786 pxor @tweak[0],$inout0 # input^=tweak 1787 movdqu `16*3`($inp),$inout3 1788 pxor @tweak[1],$inout1 1789 movdqu `16*4`($inp),$inout4 1790 pxor @tweak[2],$inout2 1791 movdqu `16*5`($inp),$inout5 1792 lea `16*6`($inp),$inp 1793 pxor @tweak[3],$inout3 1794 $movkey ($key_),$rndkey0 1795 pxor @tweak[4],$inout4 1796 pxor @tweak[5],$inout5 1797 1798 # inline _aesni_decrypt6 and interleave first and last rounds 1799 # with own code... 1800 $movkey 16($key_),$rndkey1 1801 pxor $rndkey0,$inout0 1802 pxor $rndkey0,$inout1 1803 movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks 1804 aesdec $rndkey1,$inout0 1805 lea 32($key_),$key 1806 pxor $rndkey0,$inout2 1807 movdqa @tweak[1],`16*1`(%rsp) 1808 aesdec $rndkey1,$inout1 1809 pxor $rndkey0,$inout3 1810 movdqa @tweak[2],`16*2`(%rsp) 1811 aesdec $rndkey1,$inout2 1812 pxor $rndkey0,$inout4 1813 movdqa @tweak[3],`16*3`(%rsp) 1814 aesdec $rndkey1,$inout3 1815 pxor $rndkey0,$inout5 1816 $movkey ($key),$rndkey0 1817 dec $rounds 1818 movdqa @tweak[4],`16*4`(%rsp) 1819 aesdec $rndkey1,$inout4 1820 movdqa @tweak[5],`16*5`(%rsp) 1821 aesdec $rndkey1,$inout5 1822 pxor $twtmp,$twtmp 1823 pcmpgtd @tweak[5],$twtmp 1824 jmp .Lxts_dec_loop6_enter 1825 1826.align 16 1827.Lxts_dec_loop6: 1828 aesdec $rndkey1,$inout0 1829 aesdec $rndkey1,$inout1 1830 dec $rounds 1831 aesdec $rndkey1,$inout2 1832 aesdec $rndkey1,$inout3 1833 aesdec $rndkey1,$inout4 1834 aesdec $rndkey1,$inout5 1835.Lxts_dec_loop6_enter: 1836 $movkey 16($key),$rndkey1 1837 aesdec $rndkey0,$inout0 1838 aesdec $rndkey0,$inout1 1839 lea 32($key),$key 1840 aesdec $rndkey0,$inout2 1841 aesdec $rndkey0,$inout3 1842 aesdec $rndkey0,$inout4 1843 aesdec $rndkey0,$inout5 1844 $movkey ($key),$rndkey0 1845 jnz .Lxts_dec_loop6 1846 1847 pshufd \$0x13,$twtmp,$twres 1848 pxor $twtmp,$twtmp 1849 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1850 aesdec $rndkey1,$inout0 1851 pand $twmask,$twres # isolate carry and residue 1852 aesdec $rndkey1,$inout1 1853 pcmpgtd @tweak[5],$twtmp # broadcast upper bits 1854 aesdec $rndkey1,$inout2 1855 pxor $twres,@tweak[5] 1856 aesdec $rndkey1,$inout3 1857 aesdec $rndkey1,$inout4 1858 aesdec $rndkey1,$inout5 1859 $movkey 16($key),$rndkey1 1860 1861 pshufd \$0x13,$twtmp,$twres 1862 pxor $twtmp,$twtmp 1863 movdqa @tweak[5],@tweak[0] 1864 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1865 aesdec $rndkey0,$inout0 1866 pand $twmask,$twres # isolate carry and residue 1867 aesdec $rndkey0,$inout1 1868 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1869 aesdec $rndkey0,$inout2 1870 pxor $twres,@tweak[5] 1871 aesdec $rndkey0,$inout3 1872 aesdec $rndkey0,$inout4 1873 aesdec $rndkey0,$inout5 1874 $movkey 32($key),$rndkey0 1875 1876 pshufd \$0x13,$twtmp,$twres 1877 pxor $twtmp,$twtmp 1878 movdqa @tweak[5],@tweak[1] 1879 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1880 aesdec $rndkey1,$inout0 1881 pand $twmask,$twres # isolate carry and residue 1882 aesdec $rndkey1,$inout1 1883 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1884 aesdec $rndkey1,$inout2 1885 pxor $twres,@tweak[5] 1886 aesdec $rndkey1,$inout3 1887 aesdec $rndkey1,$inout4 1888 aesdec $rndkey1,$inout5 1889 1890 pshufd \$0x13,$twtmp,$twres 1891 pxor $twtmp,$twtmp 1892 movdqa @tweak[5],@tweak[2] 1893 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1894 aesdeclast $rndkey0,$inout0 1895 pand $twmask,$twres # isolate carry and residue 1896 aesdeclast $rndkey0,$inout1 1897 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1898 aesdeclast $rndkey0,$inout2 1899 pxor $twres,@tweak[5] 1900 aesdeclast $rndkey0,$inout3 1901 aesdeclast $rndkey0,$inout4 1902 aesdeclast $rndkey0,$inout5 1903 1904 pshufd \$0x13,$twtmp,$twres 1905 pxor $twtmp,$twtmp 1906 movdqa @tweak[5],@tweak[3] 1907 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1908 xorps `16*0`(%rsp),$inout0 # output^=tweak 1909 pand $twmask,$twres # isolate carry and residue 1910 xorps `16*1`(%rsp),$inout1 1911 pcmpgtd @tweak[5],$twtmp # broadcat upper bits 1912 pxor $twres,@tweak[5] 1913 1914 xorps `16*2`(%rsp),$inout2 1915 movups $inout0,`16*0`($out) # write output 1916 xorps `16*3`(%rsp),$inout3 1917 movups $inout1,`16*1`($out) 1918 xorps `16*4`(%rsp),$inout4 1919 movups $inout2,`16*2`($out) 1920 xorps `16*5`(%rsp),$inout5 1921 movups $inout3,`16*3`($out) 1922 mov $rnds_,$rounds # restore $rounds 1923 movups $inout4,`16*4`($out) 1924 movups $inout5,`16*5`($out) 1925 lea `16*6`($out),$out 1926 sub \$16*6,$len 1927 jnc .Lxts_dec_grandloop 1928 1929 lea 3($rounds,$rounds),$rounds # restore original value 1930 mov $key_,$key # restore $key 1931 mov $rounds,$rnds_ # backup $rounds 1932 1933.Lxts_dec_short: 1934 add \$16*6,$len 1935 jz .Lxts_dec_done 1936 1937 cmp \$0x20,$len 1938 jb .Lxts_dec_one 1939 je .Lxts_dec_two 1940 1941 cmp \$0x40,$len 1942 jb .Lxts_dec_three 1943 je .Lxts_dec_four 1944 1945 pshufd \$0x13,$twtmp,$twres 1946 movdqa @tweak[5],@tweak[4] 1947 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1948 movdqu ($inp),$inout0 1949 pand $twmask,$twres # isolate carry and residue 1950 movdqu 16*1($inp),$inout1 1951 pxor $twres,@tweak[5] 1952 1953 movdqu 16*2($inp),$inout2 1954 pxor @tweak[0],$inout0 1955 movdqu 16*3($inp),$inout3 1956 pxor @tweak[1],$inout1 1957 movdqu 16*4($inp),$inout4 1958 lea 16*5($inp),$inp 1959 pxor @tweak[2],$inout2 1960 pxor @tweak[3],$inout3 1961 pxor @tweak[4],$inout4 1962 1963 call _aesni_decrypt6 1964 1965 xorps @tweak[0],$inout0 1966 xorps @tweak[1],$inout1 1967 xorps @tweak[2],$inout2 1968 movdqu $inout0,($out) 1969 xorps @tweak[3],$inout3 1970 movdqu $inout1,16*1($out) 1971 xorps @tweak[4],$inout4 1972 movdqu $inout2,16*2($out) 1973 pxor $twtmp,$twtmp 1974 movdqu $inout3,16*3($out) 1975 pcmpgtd @tweak[5],$twtmp 1976 movdqu $inout4,16*4($out) 1977 lea 16*5($out),$out 1978 pshufd \$0x13,$twtmp,@tweak[1] # $twres 1979 and \$15,$len_ 1980 jz .Lxts_dec_ret 1981 1982 movdqa @tweak[5],@tweak[0] 1983 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 1984 pand $twmask,@tweak[1] # isolate carry and residue 1985 pxor @tweak[5],@tweak[1] 1986 jmp .Lxts_dec_done2 1987 1988.align 16 1989.Lxts_dec_one: 1990 movups ($inp),$inout0 1991 lea 16*1($inp),$inp 1992 xorps @tweak[0],$inout0 1993___ 1994 &aesni_generate1("dec",$key,$rounds); 1995$code.=<<___; 1996 xorps @tweak[0],$inout0 1997 movdqa @tweak[1],@tweak[0] 1998 movups $inout0,($out) 1999 movdqa @tweak[2],@tweak[1] 2000 lea 16*1($out),$out 2001 jmp .Lxts_dec_done 2002 2003.align 16 2004.Lxts_dec_two: 2005 movups ($inp),$inout0 2006 movups 16($inp),$inout1 2007 lea 32($inp),$inp 2008 xorps @tweak[0],$inout0 2009 xorps @tweak[1],$inout1 2010 2011 call _aesni_decrypt3 2012 2013 xorps @tweak[0],$inout0 2014 movdqa @tweak[2],@tweak[0] 2015 xorps @tweak[1],$inout1 2016 movdqa @tweak[3],@tweak[1] 2017 movups $inout0,($out) 2018 movups $inout1,16*1($out) 2019 lea 16*2($out),$out 2020 jmp .Lxts_dec_done 2021 2022.align 16 2023.Lxts_dec_three: 2024 movups ($inp),$inout0 2025 movups 16*1($inp),$inout1 2026 movups 16*2($inp),$inout2 2027 lea 16*3($inp),$inp 2028 xorps @tweak[0],$inout0 2029 xorps @tweak[1],$inout1 2030 xorps @tweak[2],$inout2 2031 2032 call _aesni_decrypt3 2033 2034 xorps @tweak[0],$inout0 2035 movdqa @tweak[3],@tweak[0] 2036 xorps @tweak[1],$inout1 2037 movdqa @tweak[5],@tweak[1] 2038 xorps @tweak[2],$inout2 2039 movups $inout0,($out) 2040 movups $inout1,16*1($out) 2041 movups $inout2,16*2($out) 2042 lea 16*3($out),$out 2043 jmp .Lxts_dec_done 2044 2045.align 16 2046.Lxts_dec_four: 2047 pshufd \$0x13,$twtmp,$twres 2048 movdqa @tweak[5],@tweak[4] 2049 paddq @tweak[5],@tweak[5] # psllq 1,$tweak 2050 movups ($inp),$inout0 2051 pand $twmask,$twres # isolate carry and residue 2052 movups 16*1($inp),$inout1 2053 pxor $twres,@tweak[5] 2054 2055 movups 16*2($inp),$inout2 2056 xorps @tweak[0],$inout0 2057 movups 16*3($inp),$inout3 2058 lea 16*4($inp),$inp 2059 xorps @tweak[1],$inout1 2060 xorps @tweak[2],$inout2 2061 xorps @tweak[3],$inout3 2062 2063 call _aesni_decrypt4 2064 2065 xorps @tweak[0],$inout0 2066 movdqa @tweak[4],@tweak[0] 2067 xorps @tweak[1],$inout1 2068 movdqa @tweak[5],@tweak[1] 2069 xorps @tweak[2],$inout2 2070 movups $inout0,($out) 2071 xorps @tweak[3],$inout3 2072 movups $inout1,16*1($out) 2073 movups $inout2,16*2($out) 2074 movups $inout3,16*3($out) 2075 lea 16*4($out),$out 2076 jmp .Lxts_dec_done 2077 2078.align 16 2079.Lxts_dec_done: 2080 and \$15,$len_ 2081 jz .Lxts_dec_ret 2082.Lxts_dec_done2: 2083 mov $len_,$len 2084 mov $key_,$key # restore $key 2085 mov $rnds_,$rounds # restore $rounds 2086 2087 movups ($inp),$inout0 2088 xorps @tweak[1],$inout0 2089___ 2090 &aesni_generate1("dec",$key,$rounds); 2091$code.=<<___; 2092 xorps @tweak[1],$inout0 2093 movups $inout0,($out) 2094 2095.Lxts_dec_steal: 2096 movzb 16($inp),%eax # borrow $rounds ... 2097 movzb ($out),%ecx # ... and $key 2098 lea 1($inp),$inp 2099 mov %al,($out) 2100 mov %cl,16($out) 2101 lea 1($out),$out 2102 sub \$1,$len 2103 jnz .Lxts_dec_steal 2104 2105 sub $len_,$out # rewind $out 2106 mov $key_,$key # restore $key 2107 mov $rnds_,$rounds # restore $rounds 2108 2109 movups ($out),$inout0 2110 xorps @tweak[0],$inout0 2111___ 2112 &aesni_generate1("dec",$key,$rounds); 2113$code.=<<___; 2114 xorps @tweak[0],$inout0 2115 movups $inout0,($out) 2116 2117.Lxts_dec_ret: 2118___ 2119$code.=<<___ if ($win64); 2120 movaps 0x60(%rsp),%xmm6 2121 movaps 0x70(%rsp),%xmm7 2122 movaps 0x80(%rsp),%xmm8 2123 movaps 0x90(%rsp),%xmm9 2124 movaps 0xa0(%rsp),%xmm10 2125 movaps 0xb0(%rsp),%xmm11 2126 movaps 0xc0(%rsp),%xmm12 2127 movaps 0xd0(%rsp),%xmm13 2128 movaps 0xe0(%rsp),%xmm14 2129 movaps 0xf0(%rsp),%xmm15 2130___ 2131$code.=<<___; 2132 lea $frame_size(%rsp),%rsp 2133.Lxts_dec_epilogue: 2134 ret 2135.size aesni_xts_decrypt,.-aesni_xts_decrypt 2136___ 2137} }} 2138 2139######################################################################## 2140# void $PREFIX_cbc_encrypt (const void *inp, void *out, 2141# size_t length, const AES_KEY *key, 2142# unsigned char *ivp,const int enc); 2143{ 2144my $reserved = $win64?0x40:-0x18; # used in decrypt 2145$code.=<<___; 2146.globl ${PREFIX}_cbc_encrypt 2147.type ${PREFIX}_cbc_encrypt,\@function,6 2148.align 16 2149${PREFIX}_cbc_encrypt: 2150 test $len,$len # check length 2151 jz .Lcbc_ret 2152 2153 mov 240($key),$rnds_ # key->rounds 2154 mov $key,$key_ # backup $key 2155 test %r9d,%r9d # 6th argument 2156 jz .Lcbc_decrypt 2157#--------------------------- CBC ENCRYPT ------------------------------# 2158 movups ($ivp),$inout0 # load iv as initial state 2159 mov $rnds_,$rounds 2160 cmp \$16,$len 2161 jb .Lcbc_enc_tail 2162 sub \$16,$len 2163 jmp .Lcbc_enc_loop 2164.align 16 2165.Lcbc_enc_loop: 2166 movups ($inp),$inout1 # load input 2167 lea 16($inp),$inp 2168 #xorps $inout1,$inout0 2169___ 2170 &aesni_generate1("enc",$key,$rounds,$inout0,$inout1); 2171$code.=<<___; 2172 mov $rnds_,$rounds # restore $rounds 2173 mov $key_,$key # restore $key 2174 movups $inout0,0($out) # store output 2175 lea 16($out),$out 2176 sub \$16,$len 2177 jnc .Lcbc_enc_loop 2178 add \$16,$len 2179 jnz .Lcbc_enc_tail 2180 movups $inout0,($ivp) 2181 jmp .Lcbc_ret 2182 2183.Lcbc_enc_tail: 2184 mov $len,%rcx # zaps $key 2185 xchg $inp,$out # $inp is %rsi and $out is %rdi now 2186 .long 0x9066A4F3 # rep movsb 2187 mov \$16,%ecx # zero tail 2188 sub $len,%rcx 2189 xor %eax,%eax 2190 .long 0x9066AAF3 # rep stosb 2191 lea -16(%rdi),%rdi # rewind $out by 1 block 2192 mov $rnds_,$rounds # restore $rounds 2193 mov %rdi,%rsi # $inp and $out are the same 2194 mov $key_,$key # restore $key 2195 xor $len,$len # len=16 2196 jmp .Lcbc_enc_loop # one more spin 2197 #--------------------------- CBC DECRYPT ------------------------------# 2198.align 16 2199.Lcbc_decrypt: 2200___ 2201$code.=<<___ if ($win64); 2202 lea -0x58(%rsp),%rsp 2203 movaps %xmm6,(%rsp) 2204 movaps %xmm7,0x10(%rsp) 2205 movaps %xmm8,0x20(%rsp) 2206 movaps %xmm9,0x30(%rsp) 2207.Lcbc_decrypt_body: 2208___ 2209$code.=<<___; 2210 movups ($ivp),$iv 2211 mov $rnds_,$rounds 2212 cmp \$0x70,$len 2213 jbe .Lcbc_dec_tail 2214 shr \$1,$rnds_ 2215 sub \$0x70,$len 2216 mov $rnds_,$rounds 2217 movaps $iv,$reserved(%rsp) 2218 jmp .Lcbc_dec_loop8_enter 2219.align 16 2220.Lcbc_dec_loop8: 2221 movaps $rndkey0,$reserved(%rsp) # save IV 2222 movups $inout7,($out) 2223 lea 0x10($out),$out 2224.Lcbc_dec_loop8_enter: 2225 $movkey ($key),$rndkey0 2226 movups ($inp),$inout0 # load input 2227 movups 0x10($inp),$inout1 2228 $movkey 16($key),$rndkey1 2229 2230 lea 32($key),$key 2231 movdqu 0x20($inp),$inout2 2232 xorps $rndkey0,$inout0 2233 movdqu 0x30($inp),$inout3 2234 xorps $rndkey0,$inout1 2235 movdqu 0x40($inp),$inout4 2236 aesdec $rndkey1,$inout0 2237 pxor $rndkey0,$inout2 2238 movdqu 0x50($inp),$inout5 2239 aesdec $rndkey1,$inout1 2240 pxor $rndkey0,$inout3 2241 movdqu 0x60($inp),$inout6 2242 aesdec $rndkey1,$inout2 2243 pxor $rndkey0,$inout4 2244 movdqu 0x70($inp),$inout7 2245 aesdec $rndkey1,$inout3 2246 pxor $rndkey0,$inout5 2247 dec $rounds 2248 aesdec $rndkey1,$inout4 2249 pxor $rndkey0,$inout6 2250 aesdec $rndkey1,$inout5 2251 pxor $rndkey0,$inout7 2252 $movkey ($key),$rndkey0 2253 aesdec $rndkey1,$inout6 2254 aesdec $rndkey1,$inout7 2255 $movkey 16($key),$rndkey1 2256 2257 call .Ldec_loop8_enter 2258 2259 movups ($inp),$rndkey1 # re-load input 2260 movups 0x10($inp),$rndkey0 2261 xorps $reserved(%rsp),$inout0 # ^= IV 2262 xorps $rndkey1,$inout1 2263 movups 0x20($inp),$rndkey1 2264 xorps $rndkey0,$inout2 2265 movups 0x30($inp),$rndkey0 2266 xorps $rndkey1,$inout3 2267 movups 0x40($inp),$rndkey1 2268 xorps $rndkey0,$inout4 2269 movups 0x50($inp),$rndkey0 2270 xorps $rndkey1,$inout5 2271 movups 0x60($inp),$rndkey1 2272 xorps $rndkey0,$inout6 2273 movups 0x70($inp),$rndkey0 # IV 2274 xorps $rndkey1,$inout7 2275 movups $inout0,($out) 2276 movups $inout1,0x10($out) 2277 movups $inout2,0x20($out) 2278 movups $inout3,0x30($out) 2279 mov $rnds_,$rounds # restore $rounds 2280 movups $inout4,0x40($out) 2281 mov $key_,$key # restore $key 2282 movups $inout5,0x50($out) 2283 lea 0x80($inp),$inp 2284 movups $inout6,0x60($out) 2285 lea 0x70($out),$out 2286 sub \$0x80,$len 2287 ja .Lcbc_dec_loop8 2288 2289 movaps $inout7,$inout0 2290 movaps $rndkey0,$iv 2291 add \$0x70,$len 2292 jle .Lcbc_dec_tail_collected 2293 movups $inout0,($out) 2294 lea 1($rnds_,$rnds_),$rounds 2295 lea 0x10($out),$out 2296.Lcbc_dec_tail: 2297 movups ($inp),$inout0 2298 movaps $inout0,$in0 2299 cmp \$0x10,$len 2300 jbe .Lcbc_dec_one 2301 2302 movups 0x10($inp),$inout1 2303 movaps $inout1,$in1 2304 cmp \$0x20,$len 2305 jbe .Lcbc_dec_two 2306 2307 movups 0x20($inp),$inout2 2308 movaps $inout2,$in2 2309 cmp \$0x30,$len 2310 jbe .Lcbc_dec_three 2311 2312 movups 0x30($inp),$inout3 2313 cmp \$0x40,$len 2314 jbe .Lcbc_dec_four 2315 2316 movups 0x40($inp),$inout4 2317 cmp \$0x50,$len 2318 jbe .Lcbc_dec_five 2319 2320 movups 0x50($inp),$inout5 2321 cmp \$0x60,$len 2322 jbe .Lcbc_dec_six 2323 2324 movups 0x60($inp),$inout6 2325 movaps $iv,$reserved(%rsp) # save IV 2326 call _aesni_decrypt8 2327 movups ($inp),$rndkey1 2328 movups 0x10($inp),$rndkey0 2329 xorps $reserved(%rsp),$inout0 # ^= IV 2330 xorps $rndkey1,$inout1 2331 movups 0x20($inp),$rndkey1 2332 xorps $rndkey0,$inout2 2333 movups 0x30($inp),$rndkey0 2334 xorps $rndkey1,$inout3 2335 movups 0x40($inp),$rndkey1 2336 xorps $rndkey0,$inout4 2337 movups 0x50($inp),$rndkey0 2338 xorps $rndkey1,$inout5 2339 movups 0x60($inp),$iv # IV 2340 xorps $rndkey0,$inout6 2341 movups $inout0,($out) 2342 movups $inout1,0x10($out) 2343 movups $inout2,0x20($out) 2344 movups $inout3,0x30($out) 2345 movups $inout4,0x40($out) 2346 movups $inout5,0x50($out) 2347 lea 0x60($out),$out 2348 movaps $inout6,$inout0 2349 sub \$0x70,$len 2350 jmp .Lcbc_dec_tail_collected 2351.align 16 2352.Lcbc_dec_one: 2353___ 2354 &aesni_generate1("dec",$key,$rounds); 2355$code.=<<___; 2356 xorps $iv,$inout0 2357 movaps $in0,$iv 2358 sub \$0x10,$len 2359 jmp .Lcbc_dec_tail_collected 2360.align 16 2361.Lcbc_dec_two: 2362 xorps $inout2,$inout2 2363 call _aesni_decrypt3 2364 xorps $iv,$inout0 2365 xorps $in0,$inout1 2366 movups $inout0,($out) 2367 movaps $in1,$iv 2368 movaps $inout1,$inout0 2369 lea 0x10($out),$out 2370 sub \$0x20,$len 2371 jmp .Lcbc_dec_tail_collected 2372.align 16 2373.Lcbc_dec_three: 2374 call _aesni_decrypt3 2375 xorps $iv,$inout0 2376 xorps $in0,$inout1 2377 movups $inout0,($out) 2378 xorps $in1,$inout2 2379 movups $inout1,0x10($out) 2380 movaps $in2,$iv 2381 movaps $inout2,$inout0 2382 lea 0x20($out),$out 2383 sub \$0x30,$len 2384 jmp .Lcbc_dec_tail_collected 2385.align 16 2386.Lcbc_dec_four: 2387 call _aesni_decrypt4 2388 xorps $iv,$inout0 2389 movups 0x30($inp),$iv 2390 xorps $in0,$inout1 2391 movups $inout0,($out) 2392 xorps $in1,$inout2 2393 movups $inout1,0x10($out) 2394 xorps $in2,$inout3 2395 movups $inout2,0x20($out) 2396 movaps $inout3,$inout0 2397 lea 0x30($out),$out 2398 sub \$0x40,$len 2399 jmp .Lcbc_dec_tail_collected 2400.align 16 2401.Lcbc_dec_five: 2402 xorps $inout5,$inout5 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($inp),$iv 2412 xorps $rndkey1,$inout4 2413 movups $inout0,($out) 2414 movups $inout1,0x10($out) 2415 movups $inout2,0x20($out) 2416 movups $inout3,0x30($out) 2417 lea 0x40($out),$out 2418 movaps $inout4,$inout0 2419 sub \$0x50,$len 2420 jmp .Lcbc_dec_tail_collected 2421.align 16 2422.Lcbc_dec_six: 2423 call _aesni_decrypt6 2424 movups 0x10($inp),$rndkey1 2425 movups 0x20($inp),$rndkey0 2426 xorps $iv,$inout0 2427 xorps $in0,$inout1 2428 xorps $rndkey1,$inout2 2429 movups 0x30($inp),$rndkey1 2430 xorps $rndkey0,$inout3 2431 movups 0x40($inp),$rndkey0 2432 xorps $rndkey1,$inout4 2433 movups 0x50($inp),$iv 2434 xorps $rndkey0,$inout5 2435 movups $inout0,($out) 2436 movups $inout1,0x10($out) 2437 movups $inout2,0x20($out) 2438 movups $inout3,0x30($out) 2439 movups $inout4,0x40($out) 2440 lea 0x50($out),$out 2441 movaps $inout5,$inout0 2442 sub \$0x60,$len 2443 jmp .Lcbc_dec_tail_collected 2444.align 16 2445.Lcbc_dec_tail_collected: 2446 and \$15,$len 2447 movups $iv,($ivp) 2448 jnz .Lcbc_dec_tail_partial 2449 movups $inout0,($out) 2450 jmp .Lcbc_dec_ret 2451.align 16 2452.Lcbc_dec_tail_partial: 2453 movaps $inout0,$reserved(%rsp) 2454 mov \$16,%rcx 2455 mov $out,%rdi 2456 sub $len,%rcx 2457 lea $reserved(%rsp),%rsi 2458 .long 0x9066A4F3 # rep movsb 2459 2460.Lcbc_dec_ret: 2461___ 2462$code.=<<___ if ($win64); 2463 movaps (%rsp),%xmm6 2464 movaps 0x10(%rsp),%xmm7 2465 movaps 0x20(%rsp),%xmm8 2466 movaps 0x30(%rsp),%xmm9 2467 lea 0x58(%rsp),%rsp 2468___ 2469$code.=<<___; 2470.Lcbc_ret: 2471 ret 2472.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt 2473___ 2474} 2475# int $PREFIX_set_[en|de]crypt_key (const unsigned char *userKey, 2476# int bits, AES_KEY *key) 2477{ my ($inp,$bits,$key) = @_4args; 2478 $bits =~ s/%r/%e/; 2479 2480$code.=<<___; 2481.globl ${PREFIX}_set_decrypt_key 2482.type ${PREFIX}_set_decrypt_key,\@abi-omnipotent 2483.align 16 2484${PREFIX}_set_decrypt_key: 2485 .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 2486 call __aesni_set_encrypt_key 2487 shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key 2488 test %eax,%eax 2489 jnz .Ldec_key_ret 2490 lea 16($key,$bits),$inp # points at the end of key schedule 2491 2492 $movkey ($key),%xmm0 # just swap 2493 $movkey ($inp),%xmm1 2494 $movkey %xmm0,($inp) 2495 $movkey %xmm1,($key) 2496 lea 16($key),$key 2497 lea -16($inp),$inp 2498 2499.Ldec_key_inverse: 2500 $movkey ($key),%xmm0 # swap and inverse 2501 $movkey ($inp),%xmm1 2502 aesimc %xmm0,%xmm0 2503 aesimc %xmm1,%xmm1 2504 lea 16($key),$key 2505 lea -16($inp),$inp 2506 $movkey %xmm0,16($inp) 2507 $movkey %xmm1,-16($key) 2508 cmp $key,$inp 2509 ja .Ldec_key_inverse 2510 2511 $movkey ($key),%xmm0 # inverse middle 2512 aesimc %xmm0,%xmm0 2513 $movkey %xmm0,($inp) 2514.Ldec_key_ret: 2515 add \$8,%rsp 2516 ret 2517.LSEH_end_set_decrypt_key: 2518.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key 2519___ 2520 2521# This is based on submission by 2522# 2523# Huang Ying <ying.huang@intel.com> 2524# Vinodh Gopal <vinodh.gopal@intel.com> 2525# Kahraman Akdemir 2526# 2527# Agressively optimized in respect to aeskeygenassist's critical path 2528# and is contained in %xmm0-5 to meet Win64 ABI requirement. 2529# 2530$code.=<<___; 2531.globl ${PREFIX}_set_encrypt_key 2532.type ${PREFIX}_set_encrypt_key,\@abi-omnipotent 2533.align 16 2534${PREFIX}_set_encrypt_key: 2535__aesni_set_encrypt_key: 2536 .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 2537 mov \$-1,%rax 2538 test $inp,$inp 2539 jz .Lenc_key_ret 2540 test $key,$key 2541 jz .Lenc_key_ret 2542 2543 movups ($inp),%xmm0 # pull first 128 bits of *userKey 2544 xorps %xmm4,%xmm4 # low dword of xmm4 is assumed 0 2545 lea 16($key),%rax 2546 cmp \$256,$bits 2547 je .L14rounds 2548 cmp \$192,$bits 2549 je .L12rounds 2550 cmp \$128,$bits 2551 jne .Lbad_keybits 2552 2553.L10rounds: 2554 mov \$9,$bits # 10 rounds for 128-bit key 2555 $movkey %xmm0,($key) # round 0 2556 aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1 2557 call .Lkey_expansion_128_cold 2558 aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2 2559 call .Lkey_expansion_128 2560 aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3 2561 call .Lkey_expansion_128 2562 aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4 2563 call .Lkey_expansion_128 2564 aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5 2565 call .Lkey_expansion_128 2566 aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6 2567 call .Lkey_expansion_128 2568 aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7 2569 call .Lkey_expansion_128 2570 aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8 2571 call .Lkey_expansion_128 2572 aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9 2573 call .Lkey_expansion_128 2574 aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10 2575 call .Lkey_expansion_128 2576 $movkey %xmm0,(%rax) 2577 mov $bits,80(%rax) # 240(%rdx) 2578 xor %eax,%eax 2579 jmp .Lenc_key_ret 2580 2581.align 16 2582.L12rounds: 2583 movq 16($inp),%xmm2 # remaining 1/3 of *userKey 2584 mov \$11,$bits # 12 rounds for 192 2585 $movkey %xmm0,($key) # round 0 2586 aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2 2587 call .Lkey_expansion_192a_cold 2588 aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3 2589 call .Lkey_expansion_192b 2590 aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5 2591 call .Lkey_expansion_192a 2592 aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6 2593 call .Lkey_expansion_192b 2594 aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8 2595 call .Lkey_expansion_192a 2596 aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9 2597 call .Lkey_expansion_192b 2598 aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11 2599 call .Lkey_expansion_192a 2600 aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12 2601 call .Lkey_expansion_192b 2602 $movkey %xmm0,(%rax) 2603 mov $bits,48(%rax) # 240(%rdx) 2604 xor %rax, %rax 2605 jmp .Lenc_key_ret 2606 2607.align 16 2608.L14rounds: 2609 movups 16($inp),%xmm2 # remaning half of *userKey 2610 mov \$13,$bits # 14 rounds for 256 2611 lea 16(%rax),%rax 2612 $movkey %xmm0,($key) # round 0 2613 $movkey %xmm2,16($key) # round 1 2614 aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2 2615 call .Lkey_expansion_256a_cold 2616 aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3 2617 call .Lkey_expansion_256b 2618 aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4 2619 call .Lkey_expansion_256a 2620 aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5 2621 call .Lkey_expansion_256b 2622 aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6 2623 call .Lkey_expansion_256a 2624 aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7 2625 call .Lkey_expansion_256b 2626 aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8 2627 call .Lkey_expansion_256a 2628 aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9 2629 call .Lkey_expansion_256b 2630 aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10 2631 call .Lkey_expansion_256a 2632 aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11 2633 call .Lkey_expansion_256b 2634 aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12 2635 call .Lkey_expansion_256a 2636 aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13 2637 call .Lkey_expansion_256b 2638 aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14 2639 call .Lkey_expansion_256a 2640 $movkey %xmm0,(%rax) 2641 mov $bits,16(%rax) # 240(%rdx) 2642 xor %rax,%rax 2643 jmp .Lenc_key_ret 2644 2645.align 16 2646.Lbad_keybits: 2647 mov \$-2,%rax 2648.Lenc_key_ret: 2649 add \$8,%rsp 2650 ret 2651.LSEH_end_set_encrypt_key: 2652 2653.align 16 2654.Lkey_expansion_128: 2655 $movkey %xmm0,(%rax) 2656 lea 16(%rax),%rax 2657.Lkey_expansion_128_cold: 2658 shufps \$0b00010000,%xmm0,%xmm4 2659 xorps %xmm4, %xmm0 2660 shufps \$0b10001100,%xmm0,%xmm4 2661 xorps %xmm4, %xmm0 2662 shufps \$0b11111111,%xmm1,%xmm1 # critical path 2663 xorps %xmm1,%xmm0 2664 ret 2665 2666.align 16 2667.Lkey_expansion_192a: 2668 $movkey %xmm0,(%rax) 2669 lea 16(%rax),%rax 2670.Lkey_expansion_192a_cold: 2671 movaps %xmm2, %xmm5 2672.Lkey_expansion_192b_warm: 2673 shufps \$0b00010000,%xmm0,%xmm4 2674 movdqa %xmm2,%xmm3 2675 xorps %xmm4,%xmm0 2676 shufps \$0b10001100,%xmm0,%xmm4 2677 pslldq \$4,%xmm3 2678 xorps %xmm4,%xmm0 2679 pshufd \$0b01010101,%xmm1,%xmm1 # critical path 2680 pxor %xmm3,%xmm2 2681 pxor %xmm1,%xmm0 2682 pshufd \$0b11111111,%xmm0,%xmm3 2683 pxor %xmm3,%xmm2 2684 ret 2685 2686.align 16 2687.Lkey_expansion_192b: 2688 movaps %xmm0,%xmm3 2689 shufps \$0b01000100,%xmm0,%xmm5 2690 $movkey %xmm5,(%rax) 2691 shufps \$0b01001110,%xmm2,%xmm3 2692 $movkey %xmm3,16(%rax) 2693 lea 32(%rax),%rax 2694 jmp .Lkey_expansion_192b_warm 2695 2696.align 16 2697.Lkey_expansion_256a: 2698 $movkey %xmm2,(%rax) 2699 lea 16(%rax),%rax 2700.Lkey_expansion_256a_cold: 2701 shufps \$0b00010000,%xmm0,%xmm4 2702 xorps %xmm4,%xmm0 2703 shufps \$0b10001100,%xmm0,%xmm4 2704 xorps %xmm4,%xmm0 2705 shufps \$0b11111111,%xmm1,%xmm1 # critical path 2706 xorps %xmm1,%xmm0 2707 ret 2708 2709.align 16 2710.Lkey_expansion_256b: 2711 $movkey %xmm0,(%rax) 2712 lea 16(%rax),%rax 2713 2714 shufps \$0b00010000,%xmm2,%xmm4 2715 xorps %xmm4,%xmm2 2716 shufps \$0b10001100,%xmm2,%xmm4 2717 xorps %xmm4,%xmm2 2718 shufps \$0b10101010,%xmm1,%xmm1 # critical path 2719 xorps %xmm1,%xmm2 2720 ret 2721.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key 2722.size __aesni_set_encrypt_key,.-__aesni_set_encrypt_key 2723___ 2724} 2725 2726$code.=<<___; 2727.align 64 2728.Lbswap_mask: 2729 .byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0 2730.Lincrement32: 2731 .long 6,6,6,0 2732.Lincrement64: 2733 .long 1,0,0,0 2734.Lxts_magic: 2735 .long 0x87,0,1,0 2736 2737.asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>" 2738.align 64 2739___ 2740 2741# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, 2742# CONTEXT *context,DISPATCHER_CONTEXT *disp) 2743if ($win64) { 2744$rec="%rcx"; 2745$frame="%rdx"; 2746$context="%r8"; 2747$disp="%r9"; 2748 2749$code.=<<___; 2750.extern __imp_RtlVirtualUnwind 2751___ 2752$code.=<<___ if ($PREFIX eq "aesni"); 2753.type ecb_ccm64_se_handler,\@abi-omnipotent 2754.align 16 2755ecb_ccm64_se_handler: 2756 push %rsi 2757 push %rdi 2758 push %rbx 2759 push %rbp 2760 push %r12 2761 push %r13 2762 push %r14 2763 push %r15 2764 pushfq 2765 sub \$64,%rsp 2766 2767 mov 120($context),%rax # pull context->Rax 2768 mov 248($context),%rbx # pull context->Rip 2769 2770 mov 8($disp),%rsi # disp->ImageBase 2771 mov 56($disp),%r11 # disp->HandlerData 2772 2773 mov 0(%r11),%r10d # HandlerData[0] 2774 lea (%rsi,%r10),%r10 # prologue label 2775 cmp %r10,%rbx # context->Rip<prologue label 2776 jb .Lcommon_seh_tail 2777 2778 mov 152($context),%rax # pull context->Rsp 2779 2780 mov 4(%r11),%r10d # HandlerData[1] 2781 lea (%rsi,%r10),%r10 # epilogue label 2782 cmp %r10,%rbx # context->Rip>=epilogue label 2783 jae .Lcommon_seh_tail 2784 2785 lea 0(%rax),%rsi # %xmm save area 2786 lea 512($context),%rdi # &context.Xmm6 2787 mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) 2788 .long 0xa548f3fc # cld; rep movsq 2789 lea 0x58(%rax),%rax # adjust stack pointer 2790 2791 jmp .Lcommon_seh_tail 2792.size ecb_ccm64_se_handler,.-ecb_ccm64_se_handler 2793 2794.type ctr32_se_handler,\@abi-omnipotent 2795.align 16 2796ctr32_se_handler: 2797 push %rsi 2798 push %rdi 2799 push %rbx 2800 push %rbp 2801 push %r12 2802 push %r13 2803 push %r14 2804 push %r15 2805 pushfq 2806 sub \$64,%rsp 2807 2808 mov 120($context),%rax # pull context->Rax 2809 mov 248($context),%rbx # pull context->Rip 2810 2811 lea .Lctr32_body(%rip),%r10 2812 cmp %r10,%rbx # context->Rip<"prologue" label 2813 jb .Lcommon_seh_tail 2814 2815 mov 152($context),%rax # pull context->Rsp 2816 2817 lea .Lctr32_ret(%rip),%r10 2818 cmp %r10,%rbx 2819 jae .Lcommon_seh_tail 2820 2821 lea 0x20(%rax),%rsi # %xmm save area 2822 lea 512($context),%rdi # &context.Xmm6 2823 mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) 2824 .long 0xa548f3fc # cld; rep movsq 2825 lea 0xc8(%rax),%rax # adjust stack pointer 2826 2827 jmp .Lcommon_seh_tail 2828.size ctr32_se_handler,.-ctr32_se_handler 2829 2830.type xts_se_handler,\@abi-omnipotent 2831.align 16 2832xts_se_handler: 2833 push %rsi 2834 push %rdi 2835 push %rbx 2836 push %rbp 2837 push %r12 2838 push %r13 2839 push %r14 2840 push %r15 2841 pushfq 2842 sub \$64,%rsp 2843 2844 mov 120($context),%rax # pull context->Rax 2845 mov 248($context),%rbx # pull context->Rip 2846 2847 mov 8($disp),%rsi # disp->ImageBase 2848 mov 56($disp),%r11 # disp->HandlerData 2849 2850 mov 0(%r11),%r10d # HandlerData[0] 2851 lea (%rsi,%r10),%r10 # prologue lable 2852 cmp %r10,%rbx # context->Rip<prologue label 2853 jb .Lcommon_seh_tail 2854 2855 mov 152($context),%rax # pull context->Rsp 2856 2857 mov 4(%r11),%r10d # HandlerData[1] 2858 lea (%rsi,%r10),%r10 # epilogue label 2859 cmp %r10,%rbx # context->Rip>=epilogue label 2860 jae .Lcommon_seh_tail 2861 2862 lea 0x60(%rax),%rsi # %xmm save area 2863 lea 512($context),%rdi # & context.Xmm6 2864 mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) 2865 .long 0xa548f3fc # cld; rep movsq 2866 lea 0x68+160(%rax),%rax # adjust stack pointer 2867 2868 jmp .Lcommon_seh_tail 2869.size xts_se_handler,.-xts_se_handler 2870___ 2871$code.=<<___; 2872.type cbc_se_handler,\@abi-omnipotent 2873.align 16 2874cbc_se_handler: 2875 push %rsi 2876 push %rdi 2877 push %rbx 2878 push %rbp 2879 push %r12 2880 push %r13 2881 push %r14 2882 push %r15 2883 pushfq 2884 sub \$64,%rsp 2885 2886 mov 152($context),%rax # pull context->Rsp 2887 mov 248($context),%rbx # pull context->Rip 2888 2889 lea .Lcbc_decrypt(%rip),%r10 2890 cmp %r10,%rbx # context->Rip<"prologue" label 2891 jb .Lcommon_seh_tail 2892 2893 lea .Lcbc_decrypt_body(%rip),%r10 2894 cmp %r10,%rbx # context->Rip<cbc_decrypt_body 2895 jb .Lrestore_cbc_rax 2896 2897 lea .Lcbc_ret(%rip),%r10 2898 cmp %r10,%rbx # context->Rip>="epilogue" label 2899 jae .Lcommon_seh_tail 2900 2901 lea 0(%rax),%rsi # top of stack 2902 lea 512($context),%rdi # &context.Xmm6 2903 mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) 2904 .long 0xa548f3fc # cld; rep movsq 2905 lea 0x58(%rax),%rax # adjust stack pointer 2906 jmp .Lcommon_seh_tail 2907 2908.Lrestore_cbc_rax: 2909 mov 120($context),%rax 2910 2911.Lcommon_seh_tail: 2912 mov 8(%rax),%rdi 2913 mov 16(%rax),%rsi 2914 mov %rax,152($context) # restore context->Rsp 2915 mov %rsi,168($context) # restore context->Rsi 2916 mov %rdi,176($context) # restore context->Rdi 2917 2918 mov 40($disp),%rdi # disp->ContextRecord 2919 mov $context,%rsi # context 2920 mov \$154,%ecx # sizeof(CONTEXT) 2921 .long 0xa548f3fc # cld; rep movsq 2922 2923 mov $disp,%rsi 2924 xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER 2925 mov 8(%rsi),%rdx # arg2, disp->ImageBase 2926 mov 0(%rsi),%r8 # arg3, disp->ControlPc 2927 mov 16(%rsi),%r9 # arg4, disp->FunctionEntry 2928 mov 40(%rsi),%r10 # disp->ContextRecord 2929 lea 56(%rsi),%r11 # &disp->HandlerData 2930 lea 24(%rsi),%r12 # &disp->EstablisherFrame 2931 mov %r10,32(%rsp) # arg5 2932 mov %r11,40(%rsp) # arg6 2933 mov %r12,48(%rsp) # arg7 2934 mov %rcx,56(%rsp) # arg8, (NULL) 2935 call *__imp_RtlVirtualUnwind(%rip) 2936 2937 mov \$1,%eax # ExceptionContinueSearch 2938 add \$64,%rsp 2939 popfq 2940 pop %r15 2941 pop %r14 2942 pop %r13 2943 pop %r12 2944 pop %rbp 2945 pop %rbx 2946 pop %rdi 2947 pop %rsi 2948 ret 2949.size cbc_se_handler,.-cbc_se_handler 2950 2951.section .pdata 2952.align 4 2953___ 2954$code.=<<___ if ($PREFIX eq "aesni"); 2955 .rva .LSEH_begin_aesni_ecb_encrypt 2956 .rva .LSEH_end_aesni_ecb_encrypt 2957 .rva .LSEH_info_ecb 2958 2959 .rva .LSEH_begin_aesni_ccm64_encrypt_blocks 2960 .rva .LSEH_end_aesni_ccm64_encrypt_blocks 2961 .rva .LSEH_info_ccm64_enc 2962 2963 .rva .LSEH_begin_aesni_ccm64_decrypt_blocks 2964 .rva .LSEH_end_aesni_ccm64_decrypt_blocks 2965 .rva .LSEH_info_ccm64_dec 2966 2967 .rva .LSEH_begin_aesni_ctr32_encrypt_blocks 2968 .rva .LSEH_end_aesni_ctr32_encrypt_blocks 2969 .rva .LSEH_info_ctr32 2970 2971 .rva .LSEH_begin_aesni_xts_encrypt 2972 .rva .LSEH_end_aesni_xts_encrypt 2973 .rva .LSEH_info_xts_enc 2974 2975 .rva .LSEH_begin_aesni_xts_decrypt 2976 .rva .LSEH_end_aesni_xts_decrypt 2977 .rva .LSEH_info_xts_dec 2978___ 2979$code.=<<___; 2980 .rva .LSEH_begin_${PREFIX}_cbc_encrypt 2981 .rva .LSEH_end_${PREFIX}_cbc_encrypt 2982 .rva .LSEH_info_cbc 2983 2984 .rva ${PREFIX}_set_decrypt_key 2985 .rva .LSEH_end_set_decrypt_key 2986 .rva .LSEH_info_key 2987 2988 .rva ${PREFIX}_set_encrypt_key 2989 .rva .LSEH_end_set_encrypt_key 2990 .rva .LSEH_info_key 2991.section .xdata 2992.align 8 2993___ 2994$code.=<<___ if ($PREFIX eq "aesni"); 2995.LSEH_info_ecb: 2996 .byte 9,0,0,0 2997 .rva ecb_ccm64_se_handler 2998 .rva .Lecb_enc_body,.Lecb_enc_ret # HandlerData[] 2999.LSEH_info_ccm64_enc: 3000 .byte 9,0,0,0 3001 .rva ecb_ccm64_se_handler 3002 .rva .Lccm64_enc_body,.Lccm64_enc_ret # HandlerData[] 3003.LSEH_info_ccm64_dec: 3004 .byte 9,0,0,0 3005 .rva ecb_ccm64_se_handler 3006 .rva .Lccm64_dec_body,.Lccm64_dec_ret # HandlerData[] 3007.LSEH_info_ctr32: 3008 .byte 9,0,0,0 3009 .rva ctr32_se_handler 3010.LSEH_info_xts_enc: 3011 .byte 9,0,0,0 3012 .rva xts_se_handler 3013 .rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[] 3014.LSEH_info_xts_dec: 3015 .byte 9,0,0,0 3016 .rva xts_se_handler 3017 .rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[] 3018___ 3019$code.=<<___; 3020.LSEH_info_cbc: 3021 .byte 9,0,0,0 3022 .rva cbc_se_handler 3023.LSEH_info_key: 3024 .byte 0x01,0x04,0x01,0x00 3025 .byte 0x04,0x02,0x00,0x00 # sub rsp,8 3026___ 3027} 3028 3029sub rex { 3030 local *opcode=shift; 3031 my ($dst,$src)=@_; 3032 my $rex=0; 3033 3034 $rex|=0x04 if($dst>=8); 3035 $rex|=0x01 if($src>=8); 3036 push @opcode,$rex|0x40 if($rex); 3037} 3038 3039sub aesni { 3040 my $line=shift; 3041 my @opcode=(0x66); 3042 3043 if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) { 3044 rex(\@opcode,$4,$3); 3045 push @opcode,0x0f,0x3a,0xdf; 3046 push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M 3047 my $c=$2; 3048 push @opcode,$c=~/^0/?oct($c):$c; 3049 return ".byte\t".join(',',@opcode); 3050 } 3051 elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) { 3052 my %opcodelet = ( 3053 "aesimc" => 0xdb, 3054 "aesenc" => 0xdc, "aesenclast" => 0xdd, 3055 "aesdec" => 0xde, "aesdeclast" => 0xdf 3056 ); 3057 return undef if (!defined($opcodelet{$1})); 3058 rex(\@opcode,$3,$2); 3059 push @opcode,0x0f,0x38,$opcodelet{$1}; 3060 push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M 3061 return ".byte\t".join(',',@opcode); 3062 } 3063 return $line; 3064} 3065 3066$code =~ s/\`([^\`]*)\`/eval($1)/gem; 3067$code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem; 3068 3069print $code; 3070 3071close STDOUT; 3072