diff options
Diffstat (limited to 'main/openssl/crypto/aes/asm/vpaes-x86.pl')
| m--------- | main/openssl | 0 | ||||
| -rw-r--r-- | main/openssl/crypto/aes/asm/vpaes-x86.pl | 903 |
2 files changed, 0 insertions, 903 deletions
diff --git a/main/openssl b/main/openssl new file mode 160000 +Subproject 4d377a9ce111930d8a8f06dc0e94a892a7f6c51 diff --git a/main/openssl/crypto/aes/asm/vpaes-x86.pl b/main/openssl/crypto/aes/asm/vpaes-x86.pl deleted file mode 100644 index 1533e2c3..00000000 --- a/main/openssl/crypto/aes/asm/vpaes-x86.pl +++ /dev/null @@ -1,903 +0,0 @@ -#!/usr/bin/env perl - -###################################################################### -## Constant-time SSSE3 AES core implementation. -## version 0.1 -## -## By Mike Hamburg (Stanford University), 2009 -## Public domain. -## -## For details see http://shiftleft.org/papers/vector_aes/ and -## http://crypto.stanford.edu/vpaes/. - -###################################################################### -# September 2011. -# -# Port vpaes-x86_64.pl as 32-bit "almost" drop-in replacement for -# aes-586.pl. "Almost" refers to the fact that AES_cbc_encrypt -# doesn't handle partial vectors (doesn't have to if called from -# EVP only). "Drop-in" implies that this module doesn't share key -# schedule structure with the original nor does it make assumption -# about its alignment... -# -# Performance summary. aes-586.pl column lists large-block CBC -# encrypt/decrypt/with-hyper-threading-off(*) results in cycles per -# byte processed with 128-bit key, and vpaes-x86.pl column - [also -# large-block CBC] encrypt/decrypt. -# -# aes-586.pl vpaes-x86.pl -# -# Core 2(**) 29.1/42.3/18.3 22.0/25.6(***) -# Nehalem 27.9/40.4/18.1 10.3/12.0 -# Atom 102./119./60.1 64.5/85.3(***) -# -# (*) "Hyper-threading" in the context refers rather to cache shared -# among multiple cores, than to specifically Intel HTT. As vast -# majority of contemporary cores share cache, slower code path -# is common place. In other words "with-hyper-threading-off" -# results are presented mostly for reference purposes. -# -# (**) "Core 2" refers to initial 65nm design, a.k.a. Conroe. -# -# (***) Less impressive improvement on Core 2 and Atom is due to slow -# pshufb, yet it's respectable +32%/65% improvement on Core 2 -# and +58%/40% on Atom (as implied, over "hyper-threading-safe" -# code path). -# -# <appro@openssl.org> - -$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; -push(@INC,"${dir}","${dir}../../perlasm"); -require "x86asm.pl"; - -&asm_init($ARGV[0],"vpaes-x86.pl",$x86only = $ARGV[$#ARGV] eq "386"); - -$PREFIX="vpaes"; - -my ($round, $base, $magic, $key, $const, $inp, $out)= - ("eax", "ebx", "ecx", "edx","ebp", "esi","edi"); - -&static_label("_vpaes_consts"); -&static_label("_vpaes_schedule_low_round"); - -&set_label("_vpaes_consts",64); -$k_inv=-0x30; # inv, inva - &data_word(0x0D080180,0x0E05060F,0x0A0B0C02,0x04070309); - &data_word(0x0F0B0780,0x01040A06,0x02050809,0x030D0E0C); - -$k_s0F=-0x10; # s0F - &data_word(0x0F0F0F0F,0x0F0F0F0F,0x0F0F0F0F,0x0F0F0F0F); - -$k_ipt=0x00; # input transform (lo, hi) - &data_word(0x5A2A7000,0xC2B2E898,0x52227808,0xCABAE090); - &data_word(0x317C4D00,0x4C01307D,0xB0FDCC81,0xCD80B1FC); - -$k_sb1=0x20; # sb1u, sb1t - &data_word(0xCB503E00,0xB19BE18F,0x142AF544,0xA5DF7A6E); - &data_word(0xFAE22300,0x3618D415,0x0D2ED9EF,0x3BF7CCC1); -$k_sb2=0x40; # sb2u, sb2t - &data_word(0x0B712400,0xE27A93C6,0xBC982FCD,0x5EB7E955); - &data_word(0x0AE12900,0x69EB8840,0xAB82234A,0xC2A163C8); -$k_sbo=0x60; # sbou, sbot - &data_word(0x6FBDC700,0xD0D26D17,0xC502A878,0x15AABF7A); - &data_word(0x5FBB6A00,0xCFE474A5,0x412B35FA,0x8E1E90D1); - -$k_mc_forward=0x80; # mc_forward - &data_word(0x00030201,0x04070605,0x080B0A09,0x0C0F0E0D); - &data_word(0x04070605,0x080B0A09,0x0C0F0E0D,0x00030201); - &data_word(0x080B0A09,0x0C0F0E0D,0x00030201,0x04070605); - &data_word(0x0C0F0E0D,0x00030201,0x04070605,0x080B0A09); - -$k_mc_backward=0xc0; # mc_backward - &data_word(0x02010003,0x06050407,0x0A09080B,0x0E0D0C0F); - &data_word(0x0E0D0C0F,0x02010003,0x06050407,0x0A09080B); - &data_word(0x0A09080B,0x0E0D0C0F,0x02010003,0x06050407); - &data_word(0x06050407,0x0A09080B,0x0E0D0C0F,0x02010003); - -$k_sr=0x100; # sr - &data_word(0x03020100,0x07060504,0x0B0A0908,0x0F0E0D0C); - &data_word(0x0F0A0500,0x030E0904,0x07020D08,0x0B06010C); - &data_word(0x0B020900,0x0F060D04,0x030A0108,0x070E050C); - &data_word(0x070A0D00,0x0B0E0104,0x0F020508,0x0306090C); - -$k_rcon=0x140; # rcon - &data_word(0xAF9DEEB6,0x1F8391B9,0x4D7C7D81,0x702A9808); - -$k_s63=0x150; # s63: all equal to 0x63 transformed - &data_word(0x5B5B5B5B,0x5B5B5B5B,0x5B5B5B5B,0x5B5B5B5B); - -$k_opt=0x160; # output transform - &data_word(0xD6B66000,0xFF9F4929,0xDEBE6808,0xF7974121); - &data_word(0x50BCEC00,0x01EDBD51,0xB05C0CE0,0xE10D5DB1); - -$k_deskew=0x180; # deskew tables: inverts the sbox's "skew" - &data_word(0x47A4E300,0x07E4A340,0x5DBEF91A,0x1DFEB95A); - &data_word(0x83EA6900,0x5F36B5DC,0xF49D1E77,0x2841C2AB); -## -## Decryption stuff -## Key schedule constants -## -$k_dksd=0x1a0; # decryption key schedule: invskew x*D - &data_word(0xA3E44700,0xFEB91A5D,0x5A1DBEF9,0x0740E3A4); - &data_word(0xB5368300,0x41C277F4,0xAB289D1E,0x5FDC69EA); -$k_dksb=0x1c0; # decryption key schedule: invskew x*B - &data_word(0x8550D500,0x9A4FCA1F,0x1CC94C99,0x03D65386); - &data_word(0xB6FC4A00,0x115BEDA7,0x7E3482C8,0xD993256F); -$k_dkse=0x1e0; # decryption key schedule: invskew x*E + 0x63 - &data_word(0x1FC9D600,0xD5031CCA,0x994F5086,0x53859A4C); - &data_word(0x4FDC7BE8,0xA2319605,0x20B31487,0xCD5EF96A); -$k_dks9=0x200; # decryption key schedule: invskew x*9 - &data_word(0x7ED9A700,0xB6116FC8,0x82255BFC,0x4AED9334); - &data_word(0x27143300,0x45765162,0xE9DAFDCE,0x8BB89FAC); - -## -## Decryption stuff -## Round function constants -## -$k_dipt=0x220; # decryption input transform - &data_word(0x0B545F00,0x0F505B04,0x114E451A,0x154A411E); - &data_word(0x60056500,0x86E383E6,0xF491F194,0x12771772); - -$k_dsb9=0x240; # decryption sbox output *9*u, *9*t - &data_word(0x9A86D600,0x851C0353,0x4F994CC9,0xCAD51F50); - &data_word(0xECD74900,0xC03B1789,0xB2FBA565,0x725E2C9E); -$k_dsbd=0x260; # decryption sbox output *D*u, *D*t - &data_word(0xE6B1A200,0x7D57CCDF,0x882A4439,0xF56E9B13); - &data_word(0x24C6CB00,0x3CE2FAF7,0x15DEEFD3,0x2931180D); -$k_dsbb=0x280; # decryption sbox output *B*u, *B*t - &data_word(0x96B44200,0xD0226492,0xB0F2D404,0x602646F6); - &data_word(0xCD596700,0xC19498A6,0x3255AA6B,0xF3FF0C3E); -$k_dsbe=0x2a0; # decryption sbox output *E*u, *E*t - &data_word(0x26D4D000,0x46F29296,0x64B4F6B0,0x22426004); - &data_word(0xFFAAC100,0x0C55A6CD,0x98593E32,0x9467F36B); -$k_dsbo=0x2c0; # decryption sbox final output - &data_word(0x7EF94000,0x1387EA53,0xD4943E2D,0xC7AA6DB9); - &data_word(0x93441D00,0x12D7560F,0xD8C58E9C,0xCA4B8159); -&asciz ("Vector Permutation AES for x86/SSSE3, Mike Hamburg (Stanford University)"); -&align (64); - -&function_begin_B("_vpaes_preheat"); - &add ($const,&DWP(0,"esp")); - &movdqa ("xmm7",&QWP($k_inv,$const)); - &movdqa ("xmm6",&QWP($k_s0F,$const)); - &ret (); -&function_end_B("_vpaes_preheat"); - -## -## _aes_encrypt_core -## -## AES-encrypt %xmm0. -## -## Inputs: -## %xmm0 = input -## %xmm6-%xmm7 as in _vpaes_preheat -## (%edx) = scheduled keys -## -## Output in %xmm0 -## Clobbers %xmm1-%xmm5, %eax, %ebx, %ecx, %edx -## -## -&function_begin_B("_vpaes_encrypt_core"); - &mov ($magic,16); - &mov ($round,&DWP(240,$key)); - &movdqa ("xmm1","xmm6") - &movdqa ("xmm2",&QWP($k_ipt,$const)); - &pandn ("xmm1","xmm0"); - &movdqu ("xmm5",&QWP(0,$key)); - &psrld ("xmm1",4); - &pand ("xmm0","xmm6"); - &pshufb ("xmm2","xmm0"); - &movdqa ("xmm0",&QWP($k_ipt+16,$const)); - &pshufb ("xmm0","xmm1"); - &pxor ("xmm2","xmm5"); - &pxor ("xmm0","xmm2"); - &add ($key,16); - &lea ($base,&DWP($k_mc_backward,$const)); - &jmp (&label("enc_entry")); - - -&set_label("enc_loop",16); - # middle of middle round - &movdqa ("xmm4",&QWP($k_sb1,$const)); # 4 : sb1u - &pshufb ("xmm4","xmm2"); # 4 = sb1u - &pxor ("xmm4","xmm5"); # 4 = sb1u + k - &movdqa ("xmm0",&QWP($k_sb1+16,$const));# 0 : sb1t - &pshufb ("xmm0","xmm3"); # 0 = sb1t - &pxor ("xmm0","xmm4"); # 0 = A - &movdqa ("xmm5",&QWP($k_sb2,$const)); # 4 : sb2u - &pshufb ("xmm5","xmm2"); # 4 = sb2u - &movdqa ("xmm1",&QWP(-0x40,$base,$magic));# .Lk_mc_forward[] - &movdqa ("xmm2",&QWP($k_sb2+16,$const));# 2 : sb2t - &pshufb ("xmm2","xmm3"); # 2 = sb2t - &pxor ("xmm2","xmm5"); # 2 = 2A - &movdqa ("xmm4",&QWP(0,$base,$magic)); # .Lk_mc_backward[] - &movdqa ("xmm3","xmm0"); # 3 = A - &pshufb ("xmm0","xmm1"); # 0 = B - &add ($key,16); # next key - &pxor ("xmm0","xmm2"); # 0 = 2A+B - &pshufb ("xmm3","xmm4"); # 3 = D - &add ($magic,16); # next mc - &pxor ("xmm3","xmm0"); # 3 = 2A+B+D - &pshufb ("xmm0","xmm1"); # 0 = 2B+C - &and ($magic,0x30); # ... mod 4 - &pxor ("xmm0","xmm3"); # 0 = 2A+3B+C+D - &sub ($round,1); # nr-- - -&set_label("enc_entry"); - # top of round - &movdqa ("xmm1","xmm6"); # 1 : i - &pandn ("xmm1","xmm0"); # 1 = i<<4 - &psrld ("xmm1",4); # 1 = i - &pand ("xmm0","xmm6"); # 0 = k - &movdqa ("xmm5",&QWP($k_inv+16,$const));# 2 : a/k - &pshufb ("xmm5","xmm0"); # 2 = a/k - &pxor ("xmm0","xmm1"); # 0 = j - &movdqa ("xmm3","xmm7"); # 3 : 1/i - &pshufb ("xmm3","xmm1"); # 3 = 1/i - &pxor ("xmm3","xmm5"); # 3 = iak = 1/i + a/k - &movdqa ("xmm4","xmm7"); # 4 : 1/j - &pshufb ("xmm4","xmm0"); # 4 = 1/j - &pxor ("xmm4","xmm5"); # 4 = jak = 1/j + a/k - &movdqa ("xmm2","xmm7"); # 2 : 1/iak - &pshufb ("xmm2","xmm3"); # 2 = 1/iak - &pxor ("xmm2","xmm0"); # 2 = io - &movdqa ("xmm3","xmm7"); # 3 : 1/jak - &movdqu ("xmm5",&QWP(0,$key)); - &pshufb ("xmm3","xmm4"); # 3 = 1/jak - &pxor ("xmm3","xmm1"); # 3 = jo - &jnz (&label("enc_loop")); - - # middle of last round - &movdqa ("xmm4",&QWP($k_sbo,$const)); # 3 : sbou .Lk_sbo - &movdqa ("xmm0",&QWP($k_sbo+16,$const));# 3 : sbot .Lk_sbo+16 - &pshufb ("xmm4","xmm2"); # 4 = sbou - &pxor ("xmm4","xmm5"); # 4 = sb1u + k - &pshufb ("xmm0","xmm3"); # 0 = sb1t - &movdqa ("xmm1",&QWP(0x40,$base,$magic));# .Lk_sr[] - &pxor ("xmm0","xmm4"); # 0 = A - &pshufb ("xmm0","xmm1"); - &ret (); -&function_end_B("_vpaes_encrypt_core"); - -## -## Decryption core -## -## Same API as encryption core. -## -&function_begin_B("_vpaes_decrypt_core"); - &mov ($round,&DWP(240,$key)); - &lea ($base,&DWP($k_dsbd,$const)); - &movdqa ("xmm1","xmm6"); - &movdqa ("xmm2",&QWP($k_dipt-$k_dsbd,$base)); - &pandn ("xmm1","xmm0"); - &mov ($magic,$round); - &psrld ("xmm1",4) - &movdqu ("xmm5",&QWP(0,$key)); - &shl ($magic,4); - &pand ("xmm0","xmm6"); - &pshufb ("xmm2","xmm0"); - &movdqa ("xmm0",&QWP($k_dipt-$k_dsbd+16,$base)); - &xor ($magic,0x30); - &pshufb ("xmm0","xmm1"); - &and ($magic,0x30); - &pxor ("xmm2","xmm5"); - &movdqa ("xmm5",&QWP($k_mc_forward+48,$const)); - &pxor ("xmm0","xmm2"); - &add ($key,16); - &lea ($magic,&DWP($k_sr-$k_dsbd,$base,$magic)); - &jmp (&label("dec_entry")); - -&set_label("dec_loop",16); -## -## Inverse mix columns -## - &movdqa ("xmm4",&QWP(-0x20,$base)); # 4 : sb9u - &pshufb ("xmm4","xmm2"); # 4 = sb9u - &pxor ("xmm4","xmm0"); - &movdqa ("xmm0",&QWP(-0x10,$base)); # 0 : sb9t - &pshufb ("xmm0","xmm3"); # 0 = sb9t - &pxor ("xmm0","xmm4"); # 0 = ch - &add ($key,16); # next round key - - &pshufb ("xmm0","xmm5"); # MC ch - &movdqa ("xmm4",&QWP(0,$base)); # 4 : sbdu - &pshufb ("xmm4","xmm2"); # 4 = sbdu - &pxor ("xmm4","xmm0"); # 4 = ch - &movdqa ("xmm0",&QWP(0x10,$base)); # 0 : sbdt - &pshufb ("xmm0","xmm3"); # 0 = sbdt - &pxor ("xmm0","xmm4"); # 0 = ch - &sub ($round,1); # nr-- - - &pshufb ("xmm0","xmm5"); # MC ch - &movdqa ("xmm4",&QWP(0x20,$base)); # 4 : sbbu - &pshufb ("xmm4","xmm2"); # 4 = sbbu - &pxor ("xmm4","xmm0"); # 4 = ch - &movdqa ("xmm0",&QWP(0x30,$base)); # 0 : sbbt - &pshufb ("xmm0","xmm3"); # 0 = sbbt - &pxor ("xmm0","xmm4"); # 0 = ch - - &pshufb ("xmm0","xmm5"); # MC ch - &movdqa ("xmm4",&QWP(0x40,$base)); # 4 : sbeu - &pshufb ("xmm4","xmm2"); # 4 = sbeu - &pxor ("xmm4","xmm0"); # 4 = ch - &movdqa ("xmm0",&QWP(0x50,$base)); # 0 : sbet - &pshufb ("xmm0","xmm3"); # 0 = sbet - &pxor ("xmm0","xmm4"); # 0 = ch - - &palignr("xmm5","xmm5",12); - -&set_label("dec_entry"); - # top of round - &movdqa ("xmm1","xmm6"); # 1 : i - &pandn ("xmm1","xmm0"); # 1 = i<<4 - &psrld ("xmm1",4); # 1 = i - &pand ("xmm0","xmm6"); # 0 = k - &movdqa ("xmm2",&QWP($k_inv+16,$const));# 2 : a/k - &pshufb ("xmm2","xmm0"); # 2 = a/k - &pxor ("xmm0","xmm1"); # 0 = j - &movdqa ("xmm3","xmm7"); # 3 : 1/i - &pshufb ("xmm3","xmm1"); # 3 = 1/i - &pxor ("xmm3","xmm2"); # 3 = iak = 1/i + a/k - &movdqa ("xmm4","xmm7"); # 4 : 1/j - &pshufb ("xmm4","xmm0"); # 4 = 1/j - &pxor ("xmm4","xmm2"); # 4 = jak = 1/j + a/k - &movdqa ("xmm2","xmm7"); # 2 : 1/iak - &pshufb ("xmm2","xmm3"); # 2 = 1/iak - &pxor ("xmm2","xmm0"); # 2 = io - &movdqa ("xmm3","xmm7"); # 3 : 1/jak - &pshufb ("xmm3","xmm4"); # 3 = 1/jak - &pxor ("xmm3","xmm1"); # 3 = jo - &movdqu ("xmm0",&QWP(0,$key)); - &jnz (&label("dec_loop")); - - # middle of last round - &movdqa ("xmm4",&QWP(0x60,$base)); # 3 : sbou - &pshufb ("xmm4","xmm2"); # 4 = sbou - &pxor ("xmm4","xmm0"); # 4 = sb1u + k - &movdqa ("xmm0",&QWP(0x70,$base)); # 0 : sbot - &movdqa ("xmm2",&QWP(0,$magic)); - &pshufb ("xmm0","xmm3"); # 0 = sb1t - &pxor ("xmm0","xmm4"); # 0 = A - &pshufb ("xmm0","xmm2"); - &ret (); -&function_end_B("_vpaes_decrypt_core"); - -######################################################## -## ## -## AES key schedule ## -## ## -######################################################## -&function_begin_B("_vpaes_schedule_core"); - &add ($const,&DWP(0,"esp")); - &movdqu ("xmm0",&QWP(0,$inp)); # load key (unaligned) - &movdqa ("xmm2",&QWP($k_rcon,$const)); # load rcon - - # input transform - &movdqa ("xmm3","xmm0"); - &lea ($base,&DWP($k_ipt,$const)); - &movdqa (&QWP(4,"esp"),"xmm2"); # xmm8 - &call ("_vpaes_schedule_transform"); - &movdqa ("xmm7","xmm0"); - - &test ($out,$out); - &jnz (&label("schedule_am_decrypting")); - - # encrypting, output zeroth round key after transform - &movdqu (&QWP(0,$key),"xmm0"); - &jmp (&label("schedule_go")); - -&set_label("schedule_am_decrypting"); - # decrypting, output zeroth round key after shiftrows - &movdqa ("xmm1",&QWP($k_sr,$const,$magic)); - &pshufb ("xmm3","xmm1"); - &movdqu (&QWP(0,$key),"xmm3"); - &xor ($magic,0x30); - -&set_label("schedule_go"); - &cmp ($round,192); - &ja (&label("schedule_256")); - &je (&label("schedule_192")); - # 128: fall though - -## -## .schedule_128 -## -## 128-bit specific part of key schedule. -## -## This schedule is really simple, because all its parts -## are accomplished by the subroutines. -## -&set_label("schedule_128"); - &mov ($round,10); - -&set_label("loop_schedule_128"); - &call ("_vpaes_schedule_round"); - &dec ($round); - &jz (&label("schedule_mangle_last")); - &call ("_vpaes_schedule_mangle"); # write output - &jmp (&label("loop_schedule_128")); - -## -## .aes_schedule_192 -## -## 192-bit specific part of key schedule. -## -## The main body of this schedule is the same as the 128-bit -## schedule, but with more smearing. The long, high side is -## stored in %xmm7 as before, and the short, low side is in -## the high bits of %xmm6. -## -## This schedule is somewhat nastier, however, because each -## round produces 192 bits of key material, or 1.5 round keys. -## Therefore, on each cycle we do 2 rounds and produce 3 round -## keys. -## -&set_label("schedule_192",16); - &movdqu ("xmm0",&QWP(8,$inp)); # load key part 2 (very unaligned) - &call ("_vpaes_schedule_transform"); # input transform - &movdqa ("xmm6","xmm0"); # save short part - &pxor ("xmm4","xmm4"); # clear 4 - &movhlps("xmm6","xmm4"); # clobber low side with zeros - &mov ($round,4); - -&set_label("loop_schedule_192"); - &call ("_vpaes_schedule_round"); - &palignr("xmm0","xmm6",8); - &call ("_vpaes_schedule_mangle"); # save key n - &call ("_vpaes_schedule_192_smear"); - &call ("_vpaes_schedule_mangle"); # save key n+1 - &call ("_vpaes_schedule_round"); - &dec ($round); - &jz (&label("schedule_mangle_last")); - &call ("_vpaes_schedule_mangle"); # save key n+2 - &call ("_vpaes_schedule_192_smear"); - &jmp (&label("loop_schedule_192")); - -## -## .aes_schedule_256 -## -## 256-bit specific part of key schedule. -## -## The structure here is very similar to the 128-bit -## schedule, but with an additional "low side" in -## %xmm6. The low side's rounds are the same as the -## high side's, except no rcon and no rotation. -## -&set_label("schedule_256",16); - &movdqu ("xmm0",&QWP(16,$inp)); # load key part 2 (unaligned) - &call ("_vpaes_schedule_transform"); # input transform - &mov ($round,7); - -&set_label("loop_schedule_256"); - &call ("_vpaes_schedule_mangle"); # output low result - &movdqa ("xmm6","xmm0"); # save cur_lo in xmm6 - - # high round - &call ("_vpaes_schedule_round"); - &dec ($round); - &jz (&label("schedule_mangle_last")); - &call ("_vpaes_schedule_mangle"); - - # low round. swap xmm7 and xmm6 - &pshufd ("xmm0","xmm0",0xFF); - &movdqa (&QWP(20,"esp"),"xmm7"); - &movdqa ("xmm7","xmm6"); - &call ("_vpaes_schedule_low_round"); - &movdqa ("xmm7",&QWP(20,"esp")); - - &jmp (&label("loop_schedule_256")); - -## -## .aes_schedule_mangle_last -## -## Mangler for last round of key schedule -## Mangles %xmm0 -## when encrypting, outputs out(%xmm0) ^ 63 -## when decrypting, outputs unskew(%xmm0) -## -## Always called right before return... jumps to cleanup and exits -## -&set_label("schedule_mangle_last",16); - # schedule last round key from xmm0 - &lea ($base,&DWP($k_deskew,$const)); - &test ($out,$out); - &jnz (&label("schedule_mangle_last_dec")); - - # encrypting - &movdqa ("xmm1",&QWP($k_sr,$const,$magic)); - &pshufb ("xmm0","xmm1"); # output permute - &lea ($base,&DWP($k_opt,$const)); # prepare to output transform - &add ($key,32); - -&set_label("schedule_mangle_last_dec"); - &add ($key,-16); - &pxor ("xmm0",&QWP($k_s63,$const)); - &call ("_vpaes_schedule_transform"); # output transform - &movdqu (&QWP(0,$key),"xmm0"); # save last key - - # cleanup - &pxor ("xmm0","xmm0"); - &pxor ("xmm1","xmm1"); - &pxor ("xmm2","xmm2"); - &pxor ("xmm3","xmm3"); - &pxor ("xmm4","xmm4"); - &pxor ("xmm5","xmm5"); - &pxor ("xmm6","xmm6"); - &pxor ("xmm7","xmm7"); - &ret (); -&function_end_B("_vpaes_schedule_core"); - -## -## .aes_schedule_192_smear -## -## Smear the short, low side in the 192-bit key schedule. -## -## Inputs: -## %xmm7: high side, b a x y -## %xmm6: low side, d c 0 0 -## %xmm13: 0 -## -## Outputs: -## %xmm6: b+c+d b+c 0 0 -## %xmm0: b+c+d b+c b a -## -&function_begin_B("_vpaes_schedule_192_smear"); - &pshufd ("xmm0","xmm6",0x80); # d c 0 0 -> c 0 0 0 - &pxor ("xmm6","xmm0"); # -> c+d c 0 0 - &pshufd ("xmm0","xmm7",0xFE); # b a _ _ -> b b b a - &pxor ("xmm6","xmm0"); # -> b+c+d b+c b a - &movdqa ("xmm0","xmm6"); - &pxor ("xmm1","xmm1"); - &movhlps("xmm6","xmm1"); # clobber low side with zeros - &ret (); -&function_end_B("_vpaes_schedule_192_smear"); - -## -## .aes_schedule_round -## -## Runs one main round of the key schedule on %xmm0, %xmm7 -## -## Specifically, runs subbytes on the high dword of %xmm0 -## then rotates it by one byte and xors into the low dword of -## %xmm7. -## -## Adds rcon from low byte of %xmm8, then rotates %xmm8 for -## next rcon. -## -## Smears the dwords of %xmm7 by xoring the low into the -## second low, result into third, result into highest. -## -## Returns results in %xmm7 = %xmm0. -## Clobbers %xmm1-%xmm5. -## -&function_begin_B("_vpaes_schedule_round"); - # extract rcon from xmm8 - &movdqa ("xmm2",&QWP(8,"esp")); # xmm8 - &pxor ("xmm1","xmm1"); - &palignr("xmm1","xmm2",15); - &palignr("xmm2","xmm2",15); - &pxor ("xmm7","xmm1"); - - # rotate - &pshufd ("xmm0","xmm0",0xFF); - &palignr("xmm0","xmm0",1); - - # fall through... - &movdqa (&QWP(8,"esp"),"xmm2"); # xmm8 - - # low round: same as high round, but no rotation and no rcon. -&set_label("_vpaes_schedule_low_round"); - # smear xmm7 - &movdqa ("xmm1","xmm7"); - &pslldq ("xmm7",4); - &pxor ("xmm7","xmm1"); - &movdqa ("xmm1","xmm7"); - &pslldq ("xmm7",8); - &pxor ("xmm7","xmm1"); - &pxor ("xmm7",&QWP($k_s63,$const)); - - # subbyte - &movdqa ("xmm4",&QWP($k_s0F,$const)); - &movdqa ("xmm5",&QWP($k_inv,$const)); # 4 : 1/j - &movdqa ("xmm1","xmm4"); - &pandn ("xmm1","xmm0"); - &psrld ("xmm1",4); # 1 = i - &pand ("xmm0","xmm4"); # 0 = k - &movdqa ("xmm2",&QWP($k_inv+16,$const));# 2 : a/k - &pshufb ("xmm2","xmm0"); # 2 = a/k - &pxor ("xmm0","xmm1"); # 0 = j - &movdqa ("xmm3","xmm5"); # 3 : 1/i - &pshufb ("xmm3","xmm1"); # 3 = 1/i - &pxor ("xmm3","xmm2"); # 3 = iak = 1/i + a/k - &movdqa ("xmm4","xmm5"); # 4 : 1/j - &pshufb ("xmm4","xmm0"); # 4 = 1/j - &pxor ("xmm4","xmm2"); # 4 = jak = 1/j + a/k - &movdqa ("xmm2","xmm5"); # 2 : 1/iak - &pshufb ("xmm2","xmm3"); # 2 = 1/iak - &pxor ("xmm2","xmm0"); # 2 = io - &movdqa ("xmm3","xmm5"); # 3 : 1/jak - &pshufb ("xmm3","xmm4"); # 3 = 1/jak - &pxor ("xmm3","xmm1"); # 3 = jo - &movdqa ("xmm4",&QWP($k_sb1,$const)); # 4 : sbou - &pshufb ("xmm4","xmm2"); # 4 = sbou - &movdqa ("xmm0",&QWP($k_sb1+16,$const));# 0 : sbot - &pshufb ("xmm0","xmm3"); # 0 = sb1t - &pxor ("xmm0","xmm4"); # 0 = sbox output - - # add in smeared stuff - &pxor ("xmm0","xmm7"); - &movdqa ("xmm7","xmm0"); - &ret (); -&function_end_B("_vpaes_schedule_round"); - -## -## .aes_schedule_transform -## -## Linear-transform %xmm0 according to tables at (%ebx) -## -## Output in %xmm0 -## Clobbers %xmm1, %xmm2 -## -&function_begin_B("_vpaes_schedule_transform"); - &movdqa ("xmm2",&QWP($k_s0F,$const)); - &movdqa ("xmm1","xmm2"); - &pandn ("xmm1","xmm0"); - &psrld ("xmm1",4); - &pand ("xmm0","xmm2"); - &movdqa ("xmm2",&QWP(0,$base)); - &pshufb ("xmm2","xmm0"); - &movdqa ("xmm0",&QWP(16,$base)); - &pshufb ("xmm0","xmm1"); - &pxor ("xmm0","xmm2"); - &ret (); -&function_end_B("_vpaes_schedule_transform"); - -## -## .aes_schedule_mangle -## -## Mangle xmm0 from (basis-transformed) standard version -## to our version. -## -## On encrypt, -## xor with 0x63 -## multiply by circulant 0,1,1,1 -## apply shiftrows transform -## -## On decrypt, -## xor with 0x63 -## multiply by "inverse mixcolumns" circulant E,B,D,9 -## deskew -## apply shiftrows transform -## -## -## Writes out to (%edx), and increments or decrements it -## Keeps track of round number mod 4 in %ecx -## Preserves xmm0 -## Clobbers xmm1-xmm5 -## -&function_begin_B("_vpaes_schedule_mangle"); - &movdqa ("xmm4","xmm0"); # save xmm0 for later - &movdqa ("xmm5",&QWP($k_mc_forward,$const)); - &test ($out,$out); - &jnz (&label("schedule_mangle_dec")); - - # encrypting - &add ($key,16); - &pxor ("xmm4",&QWP($k_s63,$const)); - &pshufb ("xmm4","xmm5"); - &movdqa ("xmm3","xmm4"); - &pshufb ("xmm4","xmm5"); - &pxor ("xmm3","xmm4"); - &pshufb ("xmm4","xmm5"); - &pxor ("xmm3","xmm4"); - - &jmp (&label("schedule_mangle_both")); - -&set_label("schedule_mangle_dec",16); - # inverse mix columns - &movdqa ("xmm2",&QWP($k_s0F,$const)); - &lea ($inp,&DWP($k_dksd,$const)); - &movdqa ("xmm1","xmm2"); - &pandn ("xmm1","xmm4"); - &psrld ("xmm1",4); # 1 = hi - &pand ("xmm4","xmm2"); # 4 = lo - - &movdqa ("xmm2",&QWP(0,$inp)); - &pshufb ("xmm2","xmm4"); - &movdqa ("xmm3",&QWP(0x10,$inp)); - &pshufb ("xmm3","xmm1"); - &pxor ("xmm3","xmm2"); - &pshufb ("xmm3","xmm5"); - - &movdqa ("xmm2",&QWP(0x20,$inp)); - &pshufb ("xmm2","xmm4"); - &pxor ("xmm2","xmm3"); - &movdqa ("xmm3",&QWP(0x30,$inp)); - &pshufb ("xmm3","xmm1"); - &pxor ("xmm3","xmm2"); - &pshufb ("xmm3","xmm5"); - - &movdqa ("xmm2",&QWP(0x40,$inp)); - &pshufb ("xmm2","xmm4"); - &pxor ("xmm2","xmm3"); - &movdqa ("xmm3",&QWP(0x50,$inp)); - &pshufb ("xmm3","xmm1"); - &pxor ("xmm3","xmm2"); - &pshufb ("xmm3","xmm5"); - - &movdqa ("xmm2",&QWP(0x60,$inp)); - &pshufb ("xmm2","xmm4"); - &pxor ("xmm2","xmm3"); - &movdqa ("xmm3",&QWP(0x70,$inp)); - &pshufb ("xmm3","xmm1"); - &pxor ("xmm3","xmm2"); - - &add ($key,-16); - -&set_label("schedule_mangle_both"); - &movdqa ("xmm1",&QWP($k_sr,$const,$magic)); - &pshufb ("xmm3","xmm1"); - &add ($magic,-16); - &and ($magic,0x30); - &movdqu (&QWP(0,$key),"xmm3"); - &ret (); -&function_end_B("_vpaes_schedule_mangle"); - -# -# Interface to OpenSSL -# -&function_begin("${PREFIX}_set_encrypt_key"); - &mov ($inp,&wparam(0)); # inp - &lea ($base,&DWP(-56,"esp")); - &mov ($round,&wparam(1)); # bits - &and ($base,-16); - &mov ($key,&wparam(2)); # key - &xchg ($base,"esp"); # alloca - &mov (&DWP(48,"esp"),$base); - - &mov ($base,$round); - &shr ($base,5); - &add ($base,5); - &mov (&DWP(240,$key),$base); # AES_KEY->rounds = nbits/32+5; - &mov ($magic,0x30); - &mov ($out,0); - - &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); - &call ("_vpaes_schedule_core"); -&set_label("pic_point"); - - &mov ("esp",&DWP(48,"esp")); - &xor ("eax","eax"); -&function_end("${PREFIX}_set_encrypt_key"); - -&function_begin("${PREFIX}_set_decrypt_key"); - &mov ($inp,&wparam(0)); # inp - &lea ($base,&DWP(-56,"esp")); - &mov ($round,&wparam(1)); # bits - &and ($base,-16); - &mov ($key,&wparam(2)); # key - &xchg ($base,"esp"); # alloca - &mov (&DWP(48,"esp"),$base); - - &mov ($base,$round); - &shr ($base,5); - &add ($base,5); - &mov (&DWP(240,$key),$base); # AES_KEY->rounds = nbits/32+5; - &shl ($base,4); - &lea ($key,&DWP(16,$key,$base)); - - &mov ($out,1); - &mov ($magic,$round); - &shr ($magic,1); - &and ($magic,32); - &xor ($magic,32); # nbist==192?0:32; - - &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); - &call ("_vpaes_schedule_core"); -&set_label("pic_point"); - - &mov ("esp",&DWP(48,"esp")); - &xor ("eax","eax"); -&function_end("${PREFIX}_set_decrypt_key"); - -&function_begin("${PREFIX}_encrypt"); - &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); - &call ("_vpaes_preheat"); -&set_label("pic_point"); - &mov ($inp,&wparam(0)); # inp - &lea ($base,&DWP(-56,"esp")); - &mov ($out,&wparam(1)); # out - &and ($base,-16); - &mov ($key,&wparam(2)); # key - &xchg ($base,"esp"); # alloca - &mov (&DWP(48,"esp"),$base); - - &movdqu ("xmm0",&QWP(0,$inp)); - &call ("_vpaes_encrypt_core"); - &movdqu (&QWP(0,$out),"xmm0"); - - &mov ("esp",&DWP(48,"esp")); -&function_end("${PREFIX}_encrypt"); - -&function_begin("${PREFIX}_decrypt"); - &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); - &call ("_vpaes_preheat"); -&set_label("pic_point"); - &mov ($inp,&wparam(0)); # inp - &lea ($base,&DWP(-56,"esp")); - &mov ($out,&wparam(1)); # out - &and ($base,-16); - &mov ($key,&wparam(2)); # key - &xchg ($base,"esp"); # alloca - &mov (&DWP(48,"esp"),$base); - - &movdqu ("xmm0",&QWP(0,$inp)); - &call ("_vpaes_decrypt_core"); - &movdqu (&QWP(0,$out),"xmm0"); - - &mov ("esp",&DWP(48,"esp")); -&function_end("${PREFIX}_decrypt"); - -&function_begin("${PREFIX}_cbc_encrypt"); - &mov ($inp,&wparam(0)); # inp - &mov ($out,&wparam(1)); # out - &mov ($round,&wparam(2)); # len - &mov ($key,&wparam(3)); # key - &sub ($round,16); - &jc (&label("cbc_abort")); - &lea ($base,&DWP(-56,"esp")); - &mov ($const,&wparam(4)); # ivp - &and ($base,-16); - &mov ($magic,&wparam(5)); # enc - &xchg ($base,"esp"); # alloca - &movdqu ("xmm1",&QWP(0,$const)); # load IV - &sub ($out,$inp); - &mov (&DWP(48,"esp"),$base); - - &mov (&DWP(0,"esp"),$out); # save out - &mov (&DWP(4,"esp"),$key) # save key - &mov (&DWP(8,"esp"),$const); # save ivp - &mov ($out,$round); # $out works as $len - - &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); - &call ("_vpaes_preheat"); -&set_label("pic_point"); - &cmp ($magic,0); - &je (&label("cbc_dec_loop")); - &jmp (&label("cbc_enc_loop")); - -&set_label("cbc_enc_loop",16); - &movdqu ("xmm0",&QWP(0,$inp)); # load input - &pxor ("xmm0","xmm1"); # inp^=iv - &call ("_vpaes_encrypt_core"); - &mov ($base,&DWP(0,"esp")); # restore out - &mov ($key,&DWP(4,"esp")); # restore key - &movdqa ("xmm1","xmm0"); - &movdqu (&QWP(0,$base,$inp),"xmm0"); # write output - &lea ($inp,&DWP(16,$inp)); - &sub ($out,16); - &jnc (&label("cbc_enc_loop")); - &jmp (&label("cbc_done")); - -&set_label("cbc_dec_loop",16); - &movdqu ("xmm0",&QWP(0,$inp)); # load input - &movdqa (&QWP(16,"esp"),"xmm1"); # save IV - &movdqa (&QWP(32,"esp"),"xmm0"); # save future IV - &call ("_vpaes_decrypt_core"); - &mov ($base,&DWP(0,"esp")); # restore out - &mov ($key,&DWP(4,"esp")); # restore key - &pxor ("xmm0",&QWP(16,"esp")); # out^=iv - &movdqa ("xmm1",&QWP(32,"esp")); # load next IV - &movdqu (&QWP(0,$base,$inp),"xmm0"); # write output - &lea ($inp,&DWP(16,$inp)); - &sub ($out,16); - &jnc (&label("cbc_dec_loop")); - -&set_label("cbc_done"); - &mov ($base,&DWP(8,"esp")); # restore ivp - &mov ("esp",&DWP(48,"esp")); - &movdqu (&QWP(0,$base),"xmm1"); # write IV -&set_label("cbc_abort"); -&function_end("${PREFIX}_cbc_encrypt"); - -&asm_finish(); |