From 3944e6efcea0baa7128a89353d149b37100c0ece Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Thu, 25 Jun 2009 14:33:51 +0000 Subject: This commit was manufactured by cvs2git to create tag 'OPENBSD_4_6_BASE'. --- src/lib/libcrypto/aes/asm/aes-586.pl | 1533 ---------------------------------- 1 file changed, 1533 deletions(-) delete mode 100644 src/lib/libcrypto/aes/asm/aes-586.pl (limited to 'src/lib/libcrypto/aes/asm/aes-586.pl') diff --git a/src/lib/libcrypto/aes/asm/aes-586.pl b/src/lib/libcrypto/aes/asm/aes-586.pl deleted file mode 100644 index e771e83953..0000000000 --- a/src/lib/libcrypto/aes/asm/aes-586.pl +++ /dev/null @@ -1,1533 +0,0 @@ -#!/usr/bin/env perl -# -# ==================================================================== -# Written by Andy Polyakov for the OpenSSL -# project. Rights for redistribution and usage in source and binary -# forms are granted according to the OpenSSL license. -# ==================================================================== -# -# Version 3.6. -# -# You might fail to appreciate this module performance from the first -# try. If compared to "vanilla" linux-ia32-icc target, i.e. considered -# to be *the* best Intel C compiler without -KPIC, performance appears -# to be virtually identical... But try to re-configure with shared -# library support... Aha! Intel compiler "suddenly" lags behind by 30% -# [on P4, more on others]:-) And if compared to position-independent -# code generated by GNU C, this code performs *more* than *twice* as -# fast! Yes, all this buzz about PIC means that unlike other hand- -# coded implementations, this one was explicitly designed to be safe -# to use even in shared library context... This also means that this -# code isn't necessarily absolutely fastest "ever," because in order -# to achieve position independence an extra register has to be -# off-loaded to stack, which affects the benchmark result. -# -# Special note about instruction choice. Do you recall RC4_INT code -# performing poorly on P4? It might be the time to figure out why. -# RC4_INT code implies effective address calculations in base+offset*4 -# form. Trouble is that it seems that offset scaling turned to be -# critical path... At least eliminating scaling resulted in 2.8x RC4 -# performance improvement [as you might recall]. As AES code is hungry -# for scaling too, I [try to] avoid the latter by favoring off-by-2 -# shifts and masking the result with 0xFF<<2 instead of "boring" 0xFF. -# -# As was shown by Dean Gaudet , the above note turned -# void. Performance improvement with off-by-2 shifts was observed on -# intermediate implementation, which was spilling yet another register -# to stack... Final offset*4 code below runs just a tad faster on P4, -# but exhibits up to 10% improvement on other cores. -# -# Second version is "monolithic" replacement for aes_core.c, which in -# addition to AES_[de|en]crypt implements AES_set_[de|en]cryption_key. -# This made it possible to implement little-endian variant of the -# algorithm without modifying the base C code. Motivating factor for -# the undertaken effort was that it appeared that in tight IA-32 -# register window little-endian flavor could achieve slightly higher -# Instruction Level Parallelism, and it indeed resulted in up to 15% -# better performance on most recent µ-archs... -# -# Third version adds AES_cbc_encrypt implementation, which resulted in -# up to 40% performance imrovement of CBC benchmark results. 40% was -# observed on P4 core, where "overall" imrovement coefficient, i.e. if -# compared to PIC generated by GCC and in CBC mode, was observed to be -# as large as 4x:-) CBC performance is virtually identical to ECB now -# and on some platforms even better, e.g. 17.6 "small" cycles/byte on -# Opteron, because certain function prologues and epilogues are -# effectively taken out of the loop... -# -# Version 3.2 implements compressed tables and prefetch of these tables -# in CBC[!] mode. Former means that 3/4 of table references are now -# misaligned, which unfortunately has negative impact on elder IA-32 -# implementations, Pentium suffered 30% penalty, PIII - 10%. -# -# Version 3.3 avoids L1 cache aliasing between stack frame and -# S-boxes, and 3.4 - L1 cache aliasing even between key schedule. The -# latter is achieved by copying the key schedule to controlled place in -# stack. This unfortunately has rather strong impact on small block CBC -# performance, ~2x deterioration on 16-byte block if compared to 3.3. -# -# Version 3.5 checks if there is L1 cache aliasing between user-supplied -# key schedule and S-boxes and abstains from copying the former if -# there is no. This allows end-user to consciously retain small block -# performance by aligning key schedule in specific manner. -# -# Version 3.6 compresses Td4 to 256 bytes and prefetches it in ECB. -# -# Current ECB performance numbers for 128-bit key in CPU cycles per -# processed byte [measure commonly used by AES benchmarkers] are: -# -# small footprint fully unrolled -# P4 24 22 -# AMD K8 20 19 -# PIII 25 23 -# Pentium 81 78 - -push(@INC,"perlasm","../../perlasm"); -require "x86asm.pl"; - -&asm_init($ARGV[0],"aes-586.pl",$ARGV[$#ARGV] eq "386"); - -$s0="eax"; -$s1="ebx"; -$s2="ecx"; -$s3="edx"; -$key="edi"; -$acc="esi"; - -$compromise=0; # $compromise=128 abstains from copying key - # schedule to stack when encrypting inputs - # shorter than 128 bytes at the cost of - # risksing aliasing with S-boxes. In return - # you get way better, up to +70%, small block - # performance. -$small_footprint=1; # $small_footprint=1 code is ~5% slower [on - # recent µ-archs], but ~5 times smaller! - # I favor compact code to minimize cache - # contention and in hope to "collect" 5% back - # in real-life applications... -$vertical_spin=0; # shift "verticaly" defaults to 0, because of - # its proof-of-concept status... - -# Note that there is no decvert(), as well as last encryption round is -# performed with "horizontal" shifts. This is because this "vertical" -# implementation [one which groups shifts on a given $s[i] to form a -# "column," unlike "horizontal" one, which groups shifts on different -# $s[i] to form a "row"] is work in progress. It was observed to run -# few percents faster on Intel cores, but not AMD. On AMD K8 core it's -# whole 12% slower:-( So we face a trade-off... Shall it be resolved -# some day? Till then the code is considered experimental and by -# default remains dormant... - -sub encvert() -{ my ($te,@s) = @_; - my $v0 = $acc, $v1 = $key; - - &mov ($v0,$s[3]); # copy s3 - &mov (&DWP(4,"esp"),$s[2]); # save s2 - &mov ($v1,$s[0]); # copy s0 - &mov (&DWP(8,"esp"),$s[1]); # save s1 - - &movz ($s[2],&HB($s[0])); - &and ($s[0],0xFF); - &mov ($s[0],&DWP(0,$te,$s[0],8)); # s0>>0 - &shr ($v1,16); - &mov ($s[3],&DWP(3,$te,$s[2],8)); # s0>>8 - &movz ($s[1],&HB($v1)); - &and ($v1,0xFF); - &mov ($s[2],&DWP(2,$te,$v1,8)); # s0>>16 - &mov ($v1,$v0); - &mov ($s[1],&DWP(1,$te,$s[1],8)); # s0>>24 - - &and ($v0,0xFF); - &xor ($s[3],&DWP(0,$te,$v0,8)); # s3>>0 - &movz ($v0,&HB($v1)); - &shr ($v1,16); - &xor ($s[2],&DWP(3,$te,$v0,8)); # s3>>8 - &movz ($v0,&HB($v1)); - &and ($v1,0xFF); - &xor ($s[1],&DWP(2,$te,$v1,8)); # s3>>16 - &mov ($v1,&DWP(4,"esp")); # restore s2 - &xor ($s[0],&DWP(1,$te,$v0,8)); # s3>>24 - - &mov ($v0,$v1); - &and ($v1,0xFF); - &xor ($s[2],&DWP(0,$te,$v1,8)); # s2>>0 - &movz ($v1,&HB($v0)); - &shr ($v0,16); - &xor ($s[1],&DWP(3,$te,$v1,8)); # s2>>8 - &movz ($v1,&HB($v0)); - &and ($v0,0xFF); - &xor ($s[0],&DWP(2,$te,$v0,8)); # s2>>16 - &mov ($v0,&DWP(8,"esp")); # restore s1 - &xor ($s[3],&DWP(1,$te,$v1,8)); # s2>>24 - - &mov ($v1,$v0); - &and ($v0,0xFF); - &xor ($s[1],&DWP(0,$te,$v0,8)); # s1>>0 - &movz ($v0,&HB($v1)); - &shr ($v1,16); - &xor ($s[0],&DWP(3,$te,$v0,8)); # s1>>8 - &movz ($v0,&HB($v1)); - &and ($v1,0xFF); - &xor ($s[3],&DWP(2,$te,$v1,8)); # s1>>16 - &mov ($key,&DWP(12,"esp")); # reincarnate v1 as key - &xor ($s[2],&DWP(1,$te,$v0,8)); # s1>>24 -} - -sub encstep() -{ my ($i,$te,@s) = @_; - my $tmp = $key; - my $out = $i==3?$s[0]:$acc; - - # lines marked with #%e?x[i] denote "reordered" instructions... - if ($i==3) { &mov ($key,&DWP(12,"esp")); }##%edx - else { &mov ($out,$s[0]); - &and ($out,0xFF); } - if ($i==1) { &shr ($s[0],16); }#%ebx[1] - if ($i==2) { &shr ($s[0],24); }#%ecx[2] - &mov ($out,&DWP(0,$te,$out,8)); - - if ($i==3) { $tmp=$s[1]; }##%eax - &movz ($tmp,&HB($s[1])); - &xor ($out,&DWP(3,$te,$tmp,8)); - - if ($i==3) { $tmp=$s[2]; &mov ($s[1],&DWP(4,"esp")); }##%ebx - else { &mov ($tmp,$s[2]); - &shr ($tmp,16); } - if ($i==2) { &and ($s[1],0xFF); }#%edx[2] - &and ($tmp,0xFF); - &xor ($out,&DWP(2,$te,$tmp,8)); - - if ($i==3) { $tmp=$s[3]; &mov ($s[2],&DWP(8,"esp")); }##%ecx - elsif($i==2){ &movz ($tmp,&HB($s[3])); }#%ebx[2] - else { &mov ($tmp,$s[3]); - &shr ($tmp,24) } - &xor ($out,&DWP(1,$te,$tmp,8)); - if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } - if ($i==3) { &mov ($s[3],$acc); } - &comment(); -} - -sub enclast() -{ my ($i,$te,@s)=@_; - my $tmp = $key; - my $out = $i==3?$s[0]:$acc; - - if ($i==3) { &mov ($key,&DWP(12,"esp")); }##%edx - else { &mov ($out,$s[0]); } - &and ($out,0xFF); - if ($i==1) { &shr ($s[0],16); }#%ebx[1] - if ($i==2) { &shr ($s[0],24); }#%ecx[2] - &mov ($out,&DWP(2,$te,$out,8)); - &and ($out,0x000000ff); - - if ($i==3) { $tmp=$s[1]; }##%eax - &movz ($tmp,&HB($s[1])); - &mov ($tmp,&DWP(0,$te,$tmp,8)); - &and ($tmp,0x0000ff00); - &xor ($out,$tmp); - - if ($i==3) { $tmp=$s[2]; &mov ($s[1],&DWP(4,"esp")); }##%ebx - else { mov ($tmp,$s[2]); - &shr ($tmp,16); } - if ($i==2) { &and ($s[1],0xFF); }#%edx[2] - &and ($tmp,0xFF); - &mov ($tmp,&DWP(0,$te,$tmp,8)); - &and ($tmp,0x00ff0000); - &xor ($out,$tmp); - - if ($i==3) { $tmp=$s[3]; &mov ($s[2],&DWP(8,"esp")); }##%ecx - elsif($i==2){ &movz ($tmp,&HB($s[3])); }#%ebx[2] - else { &mov ($tmp,$s[3]); - &shr ($tmp,24); } - &mov ($tmp,&DWP(2,$te,$tmp,8)); - &and ($tmp,0xff000000); - &xor ($out,$tmp); - if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } - if ($i==3) { &mov ($s[3],$acc); } -} - -sub _data_word() { my $i; while(defined($i=shift)) { &data_word($i,$i); } } - -&public_label("AES_Te"); -&function_begin_C("_x86_AES_encrypt"); - if ($vertical_spin) { - # I need high parts of volatile registers to be accessible... - &exch ($s1="edi",$key="ebx"); - &mov ($s2="esi",$acc="ecx"); - } - - # note that caller is expected to allocate stack frame for me! - &mov (&DWP(12,"esp"),$key); # save key - - &xor ($s0,&DWP(0,$key)); # xor with key - &xor ($s1,&DWP(4,$key)); - &xor ($s2,&DWP(8,$key)); - &xor ($s3,&DWP(12,$key)); - - &mov ($acc,&DWP(240,$key)); # load key->rounds - - if ($small_footprint) { - &lea ($acc,&DWP(-2,$acc,$acc)); - &lea ($acc,&DWP(0,$key,$acc,8)); - &mov (&DWP(16,"esp"),$acc); # end of key schedule - &align (4); - &set_label("loop"); - if ($vertical_spin) { - &encvert("ebp",$s0,$s1,$s2,$s3); - } else { - &encstep(0,"ebp",$s0,$s1,$s2,$s3); - &encstep(1,"ebp",$s1,$s2,$s3,$s0); - &encstep(2,"ebp",$s2,$s3,$s0,$s1); - &encstep(3,"ebp",$s3,$s0,$s1,$s2); - } - &add ($key,16); # advance rd_key - &xor ($s0,&DWP(0,$key)); - &xor ($s1,&DWP(4,$key)); - &xor ($s2,&DWP(8,$key)); - &xor ($s3,&DWP(12,$key)); - &cmp ($key,&DWP(16,"esp")); - &mov (&DWP(12,"esp"),$key); - &jb (&label("loop")); - } - else { - &cmp ($acc,10); - &jle (&label("10rounds")); - &cmp ($acc,12); - &jle (&label("12rounds")); - - &set_label("14rounds"); - for ($i=1;$i<3;$i++) { - if ($vertical_spin) { - &encvert("ebp",$s0,$s1,$s2,$s3); - } else { - &encstep(0,"ebp",$s0,$s1,$s2,$s3); - &encstep(1,"ebp",$s1,$s2,$s3,$s0); - &encstep(2,"ebp",$s2,$s3,$s0,$s1); - &encstep(3,"ebp",$s3,$s0,$s1,$s2); - } - &xor ($s0,&DWP(16*$i+0,$key)); - &xor ($s1,&DWP(16*$i+4,$key)); - &xor ($s2,&DWP(16*$i+8,$key)); - &xor ($s3,&DWP(16*$i+12,$key)); - } - &add ($key,32); - &mov (&DWP(12,"esp"),$key); # advance rd_key - &set_label("12rounds"); - for ($i=1;$i<3;$i++) { - if ($vertical_spin) { - &encvert("ebp",$s0,$s1,$s2,$s3); - } else { - &encstep(0,"ebp",$s0,$s1,$s2,$s3); - &encstep(1,"ebp",$s1,$s2,$s3,$s0); - &encstep(2,"ebp",$s2,$s3,$s0,$s1); - &encstep(3,"ebp",$s3,$s0,$s1,$s2); - } - &xor ($s0,&DWP(16*$i+0,$key)); - &xor ($s1,&DWP(16*$i+4,$key)); - &xor ($s2,&DWP(16*$i+8,$key)); - &xor ($s3,&DWP(16*$i+12,$key)); - } - &add ($key,32); - &mov (&DWP(12,"esp"),$key); # advance rd_key - &set_label("10rounds"); - for ($i=1;$i<10;$i++) { - if ($vertical_spin) { - &encvert("ebp",$s0,$s1,$s2,$s3); - } else { - &encstep(0,"ebp",$s0,$s1,$s2,$s3); - &encstep(1,"ebp",$s1,$s2,$s3,$s0); - &encstep(2,"ebp",$s2,$s3,$s0,$s1); - &encstep(3,"ebp",$s3,$s0,$s1,$s2); - } - &xor ($s0,&DWP(16*$i+0,$key)); - &xor ($s1,&DWP(16*$i+4,$key)); - &xor ($s2,&DWP(16*$i+8,$key)); - &xor ($s3,&DWP(16*$i+12,$key)); - } - } - - if ($vertical_spin) { - # "reincarnate" some registers for "horizontal" spin... - &mov ($s1="ebx",$key="edi"); - &mov ($s2="ecx",$acc="esi"); - } - &enclast(0,"ebp",$s0,$s1,$s2,$s3); - &enclast(1,"ebp",$s1,$s2,$s3,$s0); - &enclast(2,"ebp",$s2,$s3,$s0,$s1); - &enclast(3,"ebp",$s3,$s0,$s1,$s2); - - &add ($key,$small_footprint?16:160); - &xor ($s0,&DWP(0,$key)); - &xor ($s1,&DWP(4,$key)); - &xor ($s2,&DWP(8,$key)); - &xor ($s3,&DWP(12,$key)); - - &ret (); - -&set_label("AES_Te",64); # Yes! I keep it in the code segment! - &_data_word(0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6); - &_data_word(0x0df2f2ff, 0xbd6b6bd6, 0xb16f6fde, 0x54c5c591); - &_data_word(0x50303060, 0x03010102, 0xa96767ce, 0x7d2b2b56); - &_data_word(0x19fefee7, 0x62d7d7b5, 0xe6abab4d, 0x9a7676ec); - &_data_word(0x45caca8f, 0x9d82821f, 0x40c9c989, 0x877d7dfa); - &_data_word(0x15fafaef, 0xeb5959b2, 0xc947478e, 0x0bf0f0fb); - &_data_word(0xecadad41, 0x67d4d4b3, 0xfda2a25f, 0xeaafaf45); - &_data_word(0xbf9c9c23, 0xf7a4a453, 0x967272e4, 0x5bc0c09b); - &_data_word(0xc2b7b775, 0x1cfdfde1, 0xae93933d, 0x6a26264c); - &_data_word(0x5a36366c, 0x413f3f7e, 0x02f7f7f5, 0x4fcccc83); - &_data_word(0x5c343468, 0xf4a5a551, 0x34e5e5d1, 0x08f1f1f9); - &_data_word(0x937171e2, 0x73d8d8ab, 0x53313162, 0x3f15152a); - &_data_word(0x0c040408, 0x52c7c795, 0x65232346, 0x5ec3c39d); - &_data_word(0x28181830, 0xa1969637, 0x0f05050a, 0xb59a9a2f); - &_data_word(0x0907070e, 0x36121224, 0x9b80801b, 0x3de2e2df); - &_data_word(0x26ebebcd, 0x6927274e, 0xcdb2b27f, 0x9f7575ea); - &_data_word(0x1b090912, 0x9e83831d, 0x742c2c58, 0x2e1a1a34); - &_data_word(0x2d1b1b36, 0xb26e6edc, 0xee5a5ab4, 0xfba0a05b); - &_data_word(0xf65252a4, 0x4d3b3b76, 0x61d6d6b7, 0xceb3b37d); - &_data_word(0x7b292952, 0x3ee3e3dd, 0x712f2f5e, 0x97848413); - &_data_word(0xf55353a6, 0x68d1d1b9, 0x00000000, 0x2cededc1); - &_data_word(0x60202040, 0x1ffcfce3, 0xc8b1b179, 0xed5b5bb6); - &_data_word(0xbe6a6ad4, 0x46cbcb8d, 0xd9bebe67, 0x4b393972); - &_data_word(0xde4a4a94, 0xd44c4c98, 0xe85858b0, 0x4acfcf85); - &_data_word(0x6bd0d0bb, 0x2aefefc5, 0xe5aaaa4f, 0x16fbfbed); - &_data_word(0xc5434386, 0xd74d4d9a, 0x55333366, 0x94858511); - &_data_word(0xcf45458a, 0x10f9f9e9, 0x06020204, 0x817f7ffe); - &_data_word(0xf05050a0, 0x443c3c78, 0xba9f9f25, 0xe3a8a84b); - &_data_word(0xf35151a2, 0xfea3a35d, 0xc0404080, 0x8a8f8f05); - &_data_word(0xad92923f, 0xbc9d9d21, 0x48383870, 0x04f5f5f1); - &_data_word(0xdfbcbc63, 0xc1b6b677, 0x75dadaaf, 0x63212142); - &_data_word(0x30101020, 0x1affffe5, 0x0ef3f3fd, 0x6dd2d2bf); - &_data_word(0x4ccdcd81, 0x140c0c18, 0x35131326, 0x2fececc3); - &_data_word(0xe15f5fbe, 0xa2979735, 0xcc444488, 0x3917172e); - &_data_word(0x57c4c493, 0xf2a7a755, 0x827e7efc, 0x473d3d7a); - &_data_word(0xac6464c8, 0xe75d5dba, 0x2b191932, 0x957373e6); - &_data_word(0xa06060c0, 0x98818119, 0xd14f4f9e, 0x7fdcdca3); - &_data_word(0x66222244, 0x7e2a2a54, 0xab90903b, 0x8388880b); - &_data_word(0xca46468c, 0x29eeeec7, 0xd3b8b86b, 0x3c141428); - &_data_word(0x79dedea7, 0xe25e5ebc, 0x1d0b0b16, 0x76dbdbad); - &_data_word(0x3be0e0db, 0x56323264, 0x4e3a3a74, 0x1e0a0a14); - &_data_word(0xdb494992, 0x0a06060c, 0x6c242448, 0xe45c5cb8); - &_data_word(0x5dc2c29f, 0x6ed3d3bd, 0xefacac43, 0xa66262c4); - &_data_word(0xa8919139, 0xa4959531, 0x37e4e4d3, 0x8b7979f2); - &_data_word(0x32e7e7d5, 0x43c8c88b, 0x5937376e, 0xb76d6dda); - &_data_word(0x8c8d8d01, 0x64d5d5b1, 0xd24e4e9c, 0xe0a9a949); - &_data_word(0xb46c6cd8, 0xfa5656ac, 0x07f4f4f3, 0x25eaeacf); - &_data_word(0xaf6565ca, 0x8e7a7af4, 0xe9aeae47, 0x18080810); - &_data_word(0xd5baba6f, 0x887878f0, 0x6f25254a, 0x722e2e5c); - &_data_word(0x241c1c38, 0xf1a6a657, 0xc7b4b473, 0x51c6c697); - &_data_word(0x23e8e8cb, 0x7cdddda1, 0x9c7474e8, 0x211f1f3e); - &_data_word(0xdd4b4b96, 0xdcbdbd61, 0x868b8b0d, 0x858a8a0f); - &_data_word(0x907070e0, 0x423e3e7c, 0xc4b5b571, 0xaa6666cc); - &_data_word(0xd8484890, 0x05030306, 0x01f6f6f7, 0x120e0e1c); - &_data_word(0xa36161c2, 0x5f35356a, 0xf95757ae, 0xd0b9b969); - &_data_word(0x91868617, 0x58c1c199, 0x271d1d3a, 0xb99e9e27); - &_data_word(0x38e1e1d9, 0x13f8f8eb, 0xb398982b, 0x33111122); - &_data_word(0xbb6969d2, 0x70d9d9a9, 0x898e8e07, 0xa7949433); - &_data_word(0xb69b9b2d, 0x221e1e3c, 0x92878715, 0x20e9e9c9); - &_data_word(0x49cece87, 0xff5555aa, 0x78282850, 0x7adfdfa5); - &_data_word(0x8f8c8c03, 0xf8a1a159, 0x80898909, 0x170d0d1a); - &_data_word(0xdabfbf65, 0x31e6e6d7, 0xc6424284, 0xb86868d0); - &_data_word(0xc3414182, 0xb0999929, 0x772d2d5a, 0x110f0f1e); - &_data_word(0xcbb0b07b, 0xfc5454a8, 0xd6bbbb6d, 0x3a16162c); -#rcon: - &data_word(0x00000001, 0x00000002, 0x00000004, 0x00000008); - &data_word(0x00000010, 0x00000020, 0x00000040, 0x00000080); - &data_word(0x0000001b, 0x00000036, 0, 0, 0, 0, 0, 0); -&function_end_B("_x86_AES_encrypt"); - -# void AES_encrypt (const void *inp,void *out,const AES_KEY *key); -&public_label("AES_Te"); -&function_begin("AES_encrypt"); - &mov ($acc,&wparam(0)); # load inp - &mov ($key,&wparam(2)); # load key - - &mov ($s0,"esp"); - &sub ("esp",24); - &and ("esp",-64); - &add ("esp",4); - &mov (&DWP(16,"esp"),$s0); - - &call (&label("pic_point")); # make it PIC! - &set_label("pic_point"); - &blindpop("ebp"); - &lea ("ebp",&DWP(&label("AES_Te")."-".&label("pic_point"),"ebp")); - - &mov ($s0,&DWP(0,$acc)); # load input data - &mov ($s1,&DWP(4,$acc)); - &mov ($s2,&DWP(8,$acc)); - &mov ($s3,&DWP(12,$acc)); - - &call ("_x86_AES_encrypt"); - - &mov ("esp",&DWP(16,"esp")); - - &mov ($acc,&wparam(1)); # load out - &mov (&DWP(0,$acc),$s0); # write output data - &mov (&DWP(4,$acc),$s1); - &mov (&DWP(8,$acc),$s2); - &mov (&DWP(12,$acc),$s3); -&function_end("AES_encrypt"); - -#------------------------------------------------------------------# - -sub decstep() -{ my ($i,$td,@s) = @_; - my $tmp = $key; - my $out = $i==3?$s[0]:$acc; - - # no instructions are reordered, as performance appears - # optimal... or rather that all attempts to reorder didn't - # result in better performance [which by the way is not a - # bit lower than ecryption]. - if($i==3) { &mov ($key,&DWP(12,"esp")); } - else { &mov ($out,$s[0]); } - &and ($out,0xFF); - &mov ($out,&DWP(0,$td,$out,8)); - - if ($i==3) { $tmp=$s[1]; } - &movz ($tmp,&HB($s[1])); - &xor ($out,&DWP(3,$td,$tmp,8)); - - if ($i==3) { $tmp=$s[2]; &mov ($s[1],$acc); } - else { &mov ($tmp,$s[2]); } - &shr ($tmp,16); - &and ($tmp,0xFF); - &xor ($out,&DWP(2,$td,$tmp,8)); - - if ($i==3) { $tmp=$s[3]; &mov ($s[2],&DWP(8,"esp")); } - else { &mov ($tmp,$s[3]); } - &shr ($tmp,24); - &xor ($out,&DWP(1,$td,$tmp,8)); - if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } - if ($i==3) { &mov ($s[3],&DWP(4,"esp")); } - &comment(); -} - -sub declast() -{ my ($i,$td,@s)=@_; - my $tmp = $key; - my $out = $i==3?$s[0]:$acc; - - if($i==3) { &mov ($key,&DWP(12,"esp")); } - else { &mov ($out,$s[0]); } - &and ($out,0xFF); - &movz ($out,&BP(2048,$td,$out,1)); - - if ($i==3) { $tmp=$s[1]; } - &movz ($tmp,&HB($s[1])); - &movz ($tmp,&BP(2048,$td,$tmp,1)); - &shl ($tmp,8); - &xor ($out,$tmp); - - if ($i==3) { $tmp=$s[2]; &mov ($s[1],$acc); } - else { mov ($tmp,$s[2]); } - &shr ($tmp,16); - &and ($tmp,0xFF); - &movz ($tmp,&BP(2048,$td,$tmp,1)); - &shl ($tmp,16); - &xor ($out,$tmp); - - if ($i==3) { $tmp=$s[3]; &mov ($s[2],&DWP(8,"esp")); } - else { &mov ($tmp,$s[3]); } - &shr ($tmp,24); - &movz ($tmp,&BP(2048,$td,$tmp,1)); - &shl ($tmp,24); - &xor ($out,$tmp); - if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } - if ($i==3) { &mov ($s[3],&DWP(4,"esp")); } -} - -&public_label("AES_Td"); -&function_begin_C("_x86_AES_decrypt"); - # note that caller is expected to allocate stack frame for me! - &mov (&DWP(12,"esp"),$key); # save key - - &xor ($s0,&DWP(0,$key)); # xor with key - &xor ($s1,&DWP(4,$key)); - &xor ($s2,&DWP(8,$key)); - &xor ($s3,&DWP(12,$key)); - - &mov ($acc,&DWP(240,$key)); # load key->rounds - - if ($small_footprint) { - &lea ($acc,&DWP(-2,$acc,$acc)); - &lea ($acc,&DWP(0,$key,$acc,8)); - &mov (&DWP(16,"esp"),$acc); # end of key schedule - &align (4); - &set_label("loop"); - &decstep(0,"ebp",$s0,$s3,$s2,$s1); - &decstep(1,"ebp",$s1,$s0,$s3,$s2); - &decstep(2,"ebp",$s2,$s1,$s0,$s3); - &decstep(3,"ebp",$s3,$s2,$s1,$s0); - &add ($key,16); # advance rd_key - &xor ($s0,&DWP(0,$key)); - &xor ($s1,&DWP(4,$key)); - &xor ($s2,&DWP(8,$key)); - &xor ($s3,&DWP(12,$key)); - &cmp ($key,&DWP(16,"esp")); - &mov (&DWP(12,"esp"),$key); - &jb (&label("loop")); - } - else { - &cmp ($acc,10); - &jle (&label("10rounds")); - &cmp ($acc,12); - &jle (&label("12rounds")); - - &set_label("14rounds"); - for ($i=1;$i<3;$i++) { - &decstep(0,"ebp",$s0,$s3,$s2,$s1); - &decstep(1,"ebp",$s1,$s0,$s3,$s2); - &decstep(2,"ebp",$s2,$s1,$s0,$s3); - &decstep(3,"ebp",$s3,$s2,$s1,$s0); - &xor ($s0,&DWP(16*$i+0,$key)); - &xor ($s1,&DWP(16*$i+4,$key)); - &xor ($s2,&DWP(16*$i+8,$key)); - &xor ($s3,&DWP(16*$i+12,$key)); - } - &add ($key,32); - &mov (&DWP(12,"esp"),$key); # advance rd_key - &set_label("12rounds"); - for ($i=1;$i<3;$i++) { - &decstep(0,"ebp",$s0,$s3,$s2,$s1); - &decstep(1,"ebp",$s1,$s0,$s3,$s2); - &decstep(2,"ebp",$s2,$s1,$s0,$s3); - &decstep(3,"ebp",$s3,$s2,$s1,$s0); - &xor ($s0,&DWP(16*$i+0,$key)); - &xor ($s1,&DWP(16*$i+4,$key)); - &xor ($s2,&DWP(16*$i+8,$key)); - &xor ($s3,&DWP(16*$i+12,$key)); - } - &add ($key,32); - &mov (&DWP(12,"esp"),$key); # advance rd_key - &set_label("10rounds"); - for ($i=1;$i<10;$i++) { - &decstep(0,"ebp",$s0,$s3,$s2,$s1); - &decstep(1,"ebp",$s1,$s0,$s3,$s2); - &decstep(2,"ebp",$s2,$s1,$s0,$s3); - &decstep(3,"ebp",$s3,$s2,$s1,$s0); - &xor ($s0,&DWP(16*$i+0,$key)); - &xor ($s1,&DWP(16*$i+4,$key)); - &xor ($s2,&DWP(16*$i+8,$key)); - &xor ($s3,&DWP(16*$i+12,$key)); - } - } - - &declast(0,"ebp",$s0,$s3,$s2,$s1); - &declast(1,"ebp",$s1,$s0,$s3,$s2); - &declast(2,"ebp",$s2,$s1,$s0,$s3); - &declast(3,"ebp",$s3,$s2,$s1,$s0); - - &add ($key,$small_footprint?16:160); - &xor ($s0,&DWP(0,$key)); - &xor ($s1,&DWP(4,$key)); - &xor ($s2,&DWP(8,$key)); - &xor ($s3,&DWP(12,$key)); - - &ret (); - -&set_label("AES_Td",64); # Yes! I keep it in the code segment! - &_data_word(0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a); - &_data_word(0xcb6bab3b, 0xf1459d1f, 0xab58faac, 0x9303e34b); - &_data_word(0x55fa3020, 0xf66d76ad, 0x9176cc88, 0x254c02f5); - &_data_word(0xfcd7e54f, 0xd7cb2ac5, 0x80443526, 0x8fa362b5); - &_data_word(0x495ab1de, 0x671bba25, 0x980eea45, 0xe1c0fe5d); - &_data_word(0x02752fc3, 0x12f04c81, 0xa397468d, 0xc6f9d36b); - &_data_word(0xe75f8f03, 0x959c9215, 0xeb7a6dbf, 0xda595295); - &_data_word(0x2d83bed4, 0xd3217458, 0x2969e049, 0x44c8c98e); - &_data_word(0x6a89c275, 0x78798ef4, 0x6b3e5899, 0xdd71b927); - &_data_word(0xb64fe1be, 0x17ad88f0, 0x66ac20c9, 0xb43ace7d); - &_data_word(0x184adf63, 0x82311ae5, 0x60335197, 0x457f5362); - &_data_word(0xe07764b1, 0x84ae6bbb, 0x1ca081fe, 0x942b08f9); - &_data_word(0x58684870, 0x19fd458f, 0x876cde94, 0xb7f87b52); - &_data_word(0x23d373ab, 0xe2024b72, 0x578f1fe3, 0x2aab5566); - &_data_word(0x0728ebb2, 0x03c2b52f, 0x9a7bc586, 0xa50837d3); - &_data_word(0xf2872830, 0xb2a5bf23, 0xba6a0302, 0x5c8216ed); - &_data_word(0x2b1ccf8a, 0x92b479a7, 0xf0f207f3, 0xa1e2694e); - &_data_word(0xcdf4da65, 0xd5be0506, 0x1f6234d1, 0x8afea6c4); - &_data_word(0x9d532e34, 0xa055f3a2, 0x32e18a05, 0x75ebf6a4); - &_data_word(0x39ec830b, 0xaaef6040, 0x069f715e, 0x51106ebd); - &_data_word(0xf98a213e, 0x3d06dd96, 0xae053edd, 0x46bde64d); - &_data_word(0xb58d5491, 0x055dc471, 0x6fd40604, 0xff155060); - &_data_word(0x24fb9819, 0x97e9bdd6, 0xcc434089, 0x779ed967); - &_data_word(0xbd42e8b0, 0x888b8907, 0x385b19e7, 0xdbeec879); - &_data_word(0x470a7ca1, 0xe90f427c, 0xc91e84f8, 0x00000000); - &_data_word(0x83868009, 0x48ed2b32, 0xac70111e, 0x4e725a6c); - &_data_word(0xfbff0efd, 0x5638850f, 0x1ed5ae3d, 0x27392d36); - &_data_word(0x64d90f0a, 0x21a65c68, 0xd1545b9b, 0x3a2e3624); - &_data_word(0xb1670a0c, 0x0fe75793, 0xd296eeb4, 0x9e919b1b); - &_data_word(0x4fc5c080, 0xa220dc61, 0x694b775a, 0x161a121c); - &_data_word(0x0aba93e2, 0xe52aa0c0, 0x43e0223c, 0x1d171b12); - &_data_word(0x0b0d090e, 0xadc78bf2, 0xb9a8b62d, 0xc8a91e14); - &_data_word(0x8519f157, 0x4c0775af, 0xbbdd99ee, 0xfd607fa3); - &_data_word(0x9f2601f7, 0xbcf5725c, 0xc53b6644, 0x347efb5b); - &_data_word(0x7629438b, 0xdcc623cb, 0x68fcedb6, 0x63f1e4b8); - &_data_word(0xcadc31d7, 0x10856342, 0x40229713, 0x2011c684); - &_data_word(0x7d244a85, 0xf83dbbd2, 0x1132f9ae, 0x6da129c7); - &_data_word(0x4b2f9e1d, 0xf330b2dc, 0xec52860d, 0xd0e3c177); - &_data_word(0x6c16b32b, 0x99b970a9, 0xfa489411, 0x2264e947); - &_data_word(0xc48cfca8, 0x1a3ff0a0, 0xd82c7d56, 0xef903322); - &_data_word(0xc74e4987, 0xc1d138d9, 0xfea2ca8c, 0x360bd498); - &_data_word(0xcf81f5a6, 0x28de7aa5, 0x268eb7da, 0xa4bfad3f); - &_data_word(0xe49d3a2c, 0x0d927850, 0x9bcc5f6a, 0x62467e54); - &_data_word(0xc2138df6, 0xe8b8d890, 0x5ef7392e, 0xf5afc382); - &_data_word(0xbe805d9f, 0x7c93d069, 0xa92dd56f, 0xb31225cf); - &_data_word(0x3b99acc8, 0xa77d1810, 0x6e639ce8, 0x7bbb3bdb); - &_data_word(0x097826cd, 0xf418596e, 0x01b79aec, 0xa89a4f83); - &_data_word(0x656e95e6, 0x7ee6ffaa, 0x08cfbc21, 0xe6e815ef); - &_data_word(0xd99be7ba, 0xce366f4a, 0xd4099fea, 0xd67cb029); - &_data_word(0xafb2a431, 0x31233f2a, 0x3094a5c6, 0xc066a235); - &_data_word(0x37bc4e74, 0xa6ca82fc, 0xb0d090e0, 0x15d8a733); - &_data_word(0x4a9804f1, 0xf7daec41, 0x0e50cd7f, 0x2ff69117); - &_data_word(0x8dd64d76, 0x4db0ef43, 0x544daacc, 0xdf0496e4); - &_data_word(0xe3b5d19e, 0x1b886a4c, 0xb81f2cc1, 0x7f516546); - &_data_word(0x04ea5e9d, 0x5d358c01, 0x737487fa, 0x2e410bfb); - &_data_word(0x5a1d67b3, 0x52d2db92, 0x335610e9, 0x1347d66d); - &_data_word(0x8c61d79a, 0x7a0ca137, 0x8e14f859, 0x893c13eb); - &_data_word(0xee27a9ce, 0x35c961b7, 0xede51ce1, 0x3cb1477a); - &_data_word(0x59dfd29c, 0x3f73f255, 0x79ce1418, 0xbf37c773); - &_data_word(0xeacdf753, 0x5baafd5f, 0x146f3ddf, 0x86db4478); - &_data_word(0x81f3afca, 0x3ec468b9, 0x2c342438, 0x5f40a3c2); - &_data_word(0x72c31d16, 0x0c25e2bc, 0x8b493c28, 0x41950dff); - &_data_word(0x7101a839, 0xdeb30c08, 0x9ce4b4d8, 0x90c15664); - &_data_word(0x6184cb7b, 0x70b632d5, 0x745c6c48, 0x4257b8d0); -#Td4: - &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); - &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); - &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); - &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); - &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); - &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); - &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); - &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); - &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); - &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); - &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); - &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); - &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); - &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); - &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); - &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); - &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); - &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); - &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); - &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); - &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); - &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); - &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); - &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); - &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); - &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); - &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); - &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); - &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); - &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); - &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); - &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); -&function_end_B("_x86_AES_decrypt"); - -# void AES_decrypt (const void *inp,void *out,const AES_KEY *key); -&public_label("AES_Td"); -&function_begin("AES_decrypt"); - &mov ($acc,&wparam(0)); # load inp - &mov ($key,&wparam(2)); # load key - - &mov ($s0,"esp"); - &sub ("esp",24); - &and ("esp",-64); - &add ("esp",4); - &mov (&DWP(16,"esp"),$s0); - - &call (&label("pic_point")); # make it PIC! - &set_label("pic_point"); - &blindpop("ebp"); - &lea ("ebp",&DWP(&label("AES_Td")."-".&label("pic_point"),"ebp")); - - # prefetch Td4 - &lea ("ebp",&DWP(2048+128,"ebp")); - &mov ($s0,&DWP(0-128,"ebp")); - &mov ($s1,&DWP(32-128,"ebp")); - &mov ($s2,&DWP(64-128,"ebp")); - &mov ($s3,&DWP(96-128,"ebp")); - &mov ($s0,&DWP(128-128,"ebp")); - &mov ($s1,&DWP(160-128,"ebp")); - &mov ($s2,&DWP(192-128,"ebp")); - &mov ($s3,&DWP(224-128,"ebp")); - &lea ("ebp",&DWP(-2048-128,"ebp")); - - &mov ($s0,&DWP(0,$acc)); # load input data - &mov ($s1,&DWP(4,$acc)); - &mov ($s2,&DWP(8,$acc)); - &mov ($s3,&DWP(12,$acc)); - - &call ("_x86_AES_decrypt"); - - &mov ("esp",&DWP(16,"esp")); - - &mov ($acc,&wparam(1)); # load out - &mov (&DWP(0,$acc),$s0); # write output data - &mov (&DWP(4,$acc),$s1); - &mov (&DWP(8,$acc),$s2); - &mov (&DWP(12,$acc),$s3); -&function_end("AES_decrypt"); - -# void AES_cbc_encrypt (const void char *inp, unsigned char *out, -# size_t length, const AES_KEY *key, -# unsigned char *ivp,const int enc); -{ -# stack frame layout -# -4(%esp) 0(%esp) return address -# 0(%esp) 4(%esp) tmp1 -# 4(%esp) 8(%esp) tmp2 -# 8(%esp) 12(%esp) key -# 12(%esp) 16(%esp) end of key schedule -my $_esp=&DWP(16,"esp"); #saved %esp -my $_inp=&DWP(20,"esp"); #copy of wparam(0) -my $_out=&DWP(24,"esp"); #copy of wparam(1) -my $_len=&DWP(28,"esp"); #copy of wparam(2) -my $_key=&DWP(32,"esp"); #copy of wparam(3) -my $_ivp=&DWP(36,"esp"); #copy of wparam(4) -my $_tmp=&DWP(40,"esp"); #volatile variable -my $ivec=&DWP(44,"esp"); #ivec[16] -my $aes_key=&DWP(60,"esp"); #copy of aes_key -my $mark=&DWP(60+240,"esp"); #copy of aes_key->rounds - -&public_label("AES_Te"); -&public_label("AES_Td"); -&function_begin("AES_cbc_encrypt"); - &mov ($s2 eq "ecx"? $s2 : "",&wparam(2)); # load len - &cmp ($s2,0); - &je (&label("enc_out")); - - &call (&label("pic_point")); # make it PIC! - &set_label("pic_point"); - &blindpop("ebp"); - - &pushf (); - &cld (); - - &cmp (&wparam(5),0); - &je (&label("DECRYPT")); - - &lea ("ebp",&DWP(&label("AES_Te")."-".&label("pic_point"),"ebp")); - - # allocate aligned stack frame... - &lea ($key,&DWP(-64-244,"esp")); - &and ($key,-64); - - # ... and make sure it doesn't alias with AES_Te modulo 4096 - &mov ($s0,"ebp"); - &lea ($s1,&DWP(2048,"ebp")); - &mov ($s3,$key); - &and ($s0,0xfff); # s = %ebp&0xfff - &and ($s1,0xfff); # e = (%ebp+2048)&0xfff - &and ($s3,0xfff); # p = %esp&0xfff - - &cmp ($s3,$s1); # if (p>=e) %esp =- (p-e); - &jb (&label("te_break_out")); - &sub ($s3,$s1); - &sub ($key,$s3); - &jmp (&label("te_ok")); - &set_label("te_break_out"); # else %esp -= (p-s)&0xfff + framesz; - &sub ($s3,$s0); - &and ($s3,0xfff); - &add ($s3,64+256); - &sub ($key,$s3); - &align (4); - &set_label("te_ok"); - - &mov ($s0,&wparam(0)); # load inp - &mov ($s1,&wparam(1)); # load out - &mov ($s3,&wparam(3)); # load key - &mov ($acc,&wparam(4)); # load ivp - - &exch ("esp",$key); - &add ("esp",4); # reserve for return address! - &mov ($_esp,$key); # save %esp - - &mov ($_inp,$s0); # save copy of inp - &mov ($_out,$s1); # save copy of out - &mov ($_len,$s2); # save copy of len - &mov ($_key,$s3); # save copy of key - &mov ($_ivp,$acc); # save copy of ivp - - &mov ($mark,0); # copy of aes_key->rounds = 0; - if ($compromise) { - &cmp ($s2,$compromise); - &jb (&label("skip_ecopy")); - } - # do we copy key schedule to stack? - &mov ($s1 eq "ebx" ? $s1 : "",$s3); - &mov ($s2 eq "ecx" ? $s2 : "",244/4); - &sub ($s1,"ebp"); - &mov ("esi",$s3); - &and ($s1,0xfff); - &lea ("edi",$aes_key); - &cmp ($s1,2048); - &jb (&label("do_ecopy")); - &cmp ($s1,4096-244); - &jb (&label("skip_ecopy")); - &align (4); - &set_label("do_ecopy"); - &mov ($_key,"edi"); - &data_word(0xA5F3F689); # rep movsd - &set_label("skip_ecopy"); - - &mov ($acc,$s0); - &mov ($key,16); - &align (4); - &set_label("prefetch_te"); - &mov ($s0,&DWP(0,"ebp")); - &mov ($s1,&DWP(32,"ebp")); - &mov ($s2,&DWP(64,"ebp")); - &mov ($s3,&DWP(96,"ebp")); - &lea ("ebp",&DWP(128,"ebp")); - &dec ($key); - &jnz (&label("prefetch_te")); - &sub ("ebp",2048); - - &mov ($s2,$_len); - &mov ($key,$_ivp); - &test ($s2,0xFFFFFFF0); - &jz (&label("enc_tail")); # short input... - - &mov ($s0,&DWP(0,$key)); # load iv - &mov ($s1,&DWP(4,$key)); - - &align (4); - &set_label("enc_loop"); - &mov ($s2,&DWP(8,$key)); - &mov ($s3,&DWP(12,$key)); - - &xor ($s0,&DWP(0,$acc)); # xor input data - &xor ($s1,&DWP(4,$acc)); - &xor ($s2,&DWP(8,$acc)); - &xor ($s3,&DWP(12,$acc)); - - &mov ($key,$_key); # load key - &call ("_x86_AES_encrypt"); - - &mov ($acc,$_inp); # load inp - &mov ($key,$_out); # load out - - &mov (&DWP(0,$key),$s0); # save output data - &mov (&DWP(4,$key),$s1); - &mov (&DWP(8,$key),$s2); - &mov (&DWP(12,$key),$s3); - - &mov ($s2,$_len); # load len - - &lea ($acc,&DWP(16,$acc)); - &mov ($_inp,$acc); # save inp - - &lea ($s3,&DWP(16,$key)); - &mov ($_out,$s3); # save out - - &sub ($s2,16); - &test ($s2,0xFFFFFFF0); - &mov ($_len,$s2); # save len - &jnz (&label("enc_loop")); - &test ($s2,15); - &jnz (&label("enc_tail")); - &mov ($acc,$_ivp); # load ivp - &mov ($s2,&DWP(8,$key)); # restore last dwords - &mov ($s3,&DWP(12,$key)); - &mov (&DWP(0,$acc),$s0); # save ivec - &mov (&DWP(4,$acc),$s1); - &mov (&DWP(8,$acc),$s2); - &mov (&DWP(12,$acc),$s3); - - &cmp ($mark,0); # was the key schedule copied? - &mov ("edi",$_key); - &je (&label("skip_ezero")); - # zero copy of key schedule - &mov ("ecx",240/4); - &xor ("eax","eax"); - &align (4); - &data_word(0xABF3F689); # rep stosd - &set_label("skip_ezero") - &mov ("esp",$_esp); - &popf (); - &set_label("enc_out"); - &function_end_A(); - &pushf (); # kludge, never executed - - &align (4); - &set_label("enc_tail"); - &mov ($s0,$key eq "edi" ? $key : ""); - &mov ($key,$_out); # load out - &push ($s0); # push ivp - &mov ($s1,16); - &sub ($s1,$s2); - &cmp ($key,$acc); # compare with inp - &je (&label("enc_in_place")); - &align (4); - &data_word(0xA4F3F689); # rep movsb # copy input - &jmp (&label("enc_skip_in_place")); - &set_label("enc_in_place"); - &lea ($key,&DWP(0,$key,$s2)); - &set_label("enc_skip_in_place"); - &mov ($s2,$s1); - &xor ($s0,$s0); - &align (4); - &data_word(0xAAF3F689); # rep stosb # zero tail - &pop ($key); # pop ivp - - &mov ($acc,$_out); # output as input - &mov ($s0,&DWP(0,$key)); - &mov ($s1,&DWP(4,$key)); - &mov ($_len,16); # len=16 - &jmp (&label("enc_loop")); # one more spin... - -#----------------------------- DECRYPT -----------------------------# -&align (4); -&set_label("DECRYPT"); - &lea ("ebp",&DWP(&label("AES_Td")."-".&label("pic_point"),"ebp")); - - # allocate aligned stack frame... - &lea ($key,&DWP(-64-244,"esp")); - &and ($key,-64); - - # ... and make sure it doesn't alias with AES_Td modulo 4096 - &mov ($s0,"ebp"); - &lea ($s1,&DWP(2048+256,"ebp")); - &mov ($s3,$key); - &and ($s0,0xfff); # s = %ebp&0xfff - &and ($s1,0xfff); # e = (%ebp+2048+256)&0xfff - &and ($s3,0xfff); # p = %esp&0xfff - - &cmp ($s3,$s1); # if (p>=e) %esp =- (p-e); - &jb (&label("td_break_out")); - &sub ($s3,$s1); - &sub ($key,$s3); - &jmp (&label("td_ok")); - &set_label("td_break_out"); # else %esp -= (p-s)&0xfff + framesz; - &sub ($s3,$s0); - &and ($s3,0xfff); - &add ($s3,64+256); - &sub ($key,$s3); - &align (4); - &set_label("td_ok"); - - &mov ($s0,&wparam(0)); # load inp - &mov ($s1,&wparam(1)); # load out - &mov ($s3,&wparam(3)); # load key - &mov ($acc,&wparam(4)); # load ivp - - &exch ("esp",$key); - &add ("esp",4); # reserve for return address! - &mov ($_esp,$key); # save %esp - - &mov ($_inp,$s0); # save copy of inp - &mov ($_out,$s1); # save copy of out - &mov ($_len,$s2); # save copy of len - &mov ($_key,$s3); # save copy of key - &mov ($_ivp,$acc); # save copy of ivp - - &mov ($mark,0); # copy of aes_key->rounds = 0; - if ($compromise) { - &cmp ($s2,$compromise); - &jb (&label("skip_dcopy")); - } - # do we copy key schedule to stack? - &mov ($s1 eq "ebx" ? $s1 : "",$s3); - &mov ($s2 eq "ecx" ? $s2 : "",244/4); - &sub ($s1,"ebp"); - &mov ("esi",$s3); - &and ($s1,0xfff); - &lea ("edi",$aes_key); - &cmp ($s1,2048+256); - &jb (&label("do_dcopy")); - &cmp ($s1,4096-244); - &jb (&label("skip_dcopy")); - &align (4); - &set_label("do_dcopy"); - &mov ($_key,"edi"); - &data_word(0xA5F3F689); # rep movsd - &set_label("skip_dcopy"); - - &mov ($acc,$s0); - &mov ($key,18); - &align (4); - &set_label("prefetch_td"); - &mov ($s0,&DWP(0,"ebp")); - &mov ($s1,&DWP(32,"ebp")); - &mov ($s2,&DWP(64,"ebp")); - &mov ($s3,&DWP(96,"ebp")); - &lea ("ebp",&DWP(128,"ebp")); - &dec ($key); - &jnz (&label("prefetch_td")); - &sub ("ebp",2048+256); - - &cmp ($acc,$_out); - &je (&label("dec_in_place")); # in-place processing... - - &mov ($key,$_ivp); # load ivp - &mov ($_tmp,$key); - - &align (4); - &set_label("dec_loop"); - &mov ($s0,&DWP(0,$acc)); # read input - &mov ($s1,&DWP(4,$acc)); - &mov ($s2,&DWP(8,$acc)); - &mov ($s3,&DWP(12,$acc)); - - &mov ($key,$_key); # load key - &call ("_x86_AES_decrypt"); - - &mov ($key,$_tmp); # load ivp - &mov ($acc,$_len); # load len - &xor ($s0,&DWP(0,$key)); # xor iv - &xor ($s1,&DWP(4,$key)); - &xor ($s2,&DWP(8,$key)); - &xor ($s3,&DWP(12,$key)); - - &sub ($acc,16); - &jc (&label("dec_partial")); - &mov ($_len,$acc); # save len - &mov ($acc,$_inp); # load inp - &mov ($key,$_out); # load out - - &mov (&DWP(0,$key),$s0); # write output - &mov (&DWP(4,$key),$s1); - &mov (&DWP(8,$key),$s2); - &mov (&DWP(12,$key),$s3); - - &mov ($_tmp,$acc); # save ivp - &lea ($acc,&DWP(16,$acc)); - &mov ($_inp,$acc); # save inp - - &lea ($key,&DWP(16,$key)); - &mov ($_out,$key); # save out - - &jnz (&label("dec_loop")); - &mov ($key,$_tmp); # load temp ivp - &set_label("dec_end"); - &mov ($acc,$_ivp); # load user ivp - &mov ($s0,&DWP(0,$key)); # load iv - &mov ($s1,&DWP(4,$key)); - &mov ($s2,&DWP(8,$key)); - &mov ($s3,&DWP(12,$key)); - &mov (&DWP(0,$acc),$s0); # copy back to user - &mov (&DWP(4,$acc),$s1); - &mov (&DWP(8,$acc),$s2); - &mov (&DWP(12,$acc),$s3); - &jmp (&label("dec_out")); - - &align (4); - &set_label("dec_partial"); - &lea ($key,$ivec); - &mov (&DWP(0,$key),$s0); # dump output to stack - &mov (&DWP(4,$key),$s1); - &mov (&DWP(8,$key),$s2); - &mov (&DWP(12,$key),$s3); - &lea ($s2 eq "ecx" ? $s2 : "",&DWP(16,$acc)); - &mov ($acc eq "esi" ? $acc : "",$key); - &mov ($key eq "edi" ? $key : "",$_out); # load out - &data_word(0xA4F3F689); # rep movsb # copy output - &mov ($key,$_inp); # use inp as temp ivp - &jmp (&label("dec_end")); - - &align (4); - &set_label("dec_in_place"); - &set_label("dec_in_place_loop"); - &lea ($key,$ivec); - &mov ($s0,&DWP(0,$acc)); # read input - &mov ($s1,&DWP(4,$acc)); - &mov ($s2,&DWP(8,$acc)); - &mov ($s3,&DWP(12,$acc)); - - &mov (&DWP(0,$key),$s0); # copy to temp - &mov (&DWP(4,$key),$s1); - &mov (&DWP(8,$key),$s2); - &mov (&DWP(12,$key),$s3); - - &mov ($key,$_key); # load key - &call ("_x86_AES_decrypt"); - - &mov ($key,$_ivp); # load ivp - &mov ($acc,$_out); # load out - &xor ($s0,&DWP(0,$key)); # xor iv - &xor ($s1,&DWP(4,$key)); - &xor ($s2,&DWP(8,$key)); - &xor ($s3,&DWP(12,$key)); - - &mov (&DWP(0,$acc),$s0); # write output - &mov (&DWP(4,$acc),$s1); - &mov (&DWP(8,$acc),$s2); - &mov (&DWP(12,$acc),$s3); - - &lea ($acc,&DWP(16,$acc)); - &mov ($_out,$acc); # save out - - &lea ($acc,$ivec); - &mov ($s0,&DWP(0,$acc)); # read temp - &mov ($s1,&DWP(4,$acc)); - &mov ($s2,&DWP(8,$acc)); - &mov ($s3,&DWP(12,$acc)); - - &mov (&DWP(0,$key),$s0); # copy iv - &mov (&DWP(4,$key),$s1); - &mov (&DWP(8,$key),$s2); - &mov (&DWP(12,$key),$s3); - - &mov ($acc,$_inp); # load inp - - &lea ($acc,&DWP(16,$acc)); - &mov ($_inp,$acc); # save inp - - &mov ($s2,$_len); # load len - &sub ($s2,16); - &jc (&label("dec_in_place_partial")); - &mov ($_len,$s2); # save len - &jnz (&label("dec_in_place_loop")); - &jmp (&label("dec_out")); - - &align (4); - &set_label("dec_in_place_partial"); - # one can argue if this is actually required... - &mov ($key eq "edi" ? $key : "",$_out); - &lea ($acc eq "esi" ? $acc : "",$ivec); - &lea ($key,&DWP(0,$key,$s2)); - &lea ($acc,&DWP(16,$acc,$s2)); - &neg ($s2 eq "ecx" ? $s2 : ""); - &data_word(0xA4F3F689); # rep movsb # restore tail - - &align (4); - &set_label("dec_out"); - &cmp ($mark,0); # was the key schedule copied? - &mov ("edi",$_key); - &je (&label("skip_dzero")); - # zero copy of key schedule - &mov ("ecx",240/4); - &xor ("eax","eax"); - &align (4); - &data_word(0xABF3F689); # rep stosd - &set_label("skip_dzero") - &mov ("esp",$_esp); - &popf (); -&function_end("AES_cbc_encrypt"); -} - -#------------------------------------------------------------------# - -sub enckey() -{ - &movz ("esi",&LB("edx")); # rk[i]>>0 - &mov ("ebx",&DWP(2,"ebp","esi",8)); - &movz ("esi",&HB("edx")); # rk[i]>>8 - &and ("ebx",0xFF000000); - &xor ("eax","ebx"); - - &mov ("ebx",&DWP(2,"ebp","esi",8)); - &shr ("edx",16); - &and ("ebx",0x000000FF); - &movz ("esi",&LB("edx")); # rk[i]>>16 - &xor ("eax","ebx"); - - &mov ("ebx",&DWP(0,"ebp","esi",8)); - &movz ("esi",&HB("edx")); # rk[i]>>24 - &and ("ebx",0x0000FF00); - &xor ("eax","ebx"); - - &mov ("ebx",&DWP(0,"ebp","esi",8)); - &and ("ebx",0x00FF0000); - &xor ("eax","ebx"); - - &xor ("eax",&DWP(2048,"ebp","ecx",4)); # rcon -} - -# int AES_set_encrypt_key(const unsigned char *userKey, const int bits, -# AES_KEY *key) -&public_label("AES_Te"); -&function_begin("AES_set_encrypt_key", "", "_x86_AES_set_encrypt_key"); - &mov ("esi",&wparam(0)); # user supplied key - &mov ("edi",&wparam(2)); # private key schedule - - &test ("esi",-1); - &jz (&label("badpointer")); - &test ("edi",-1); - &jz (&label("badpointer")); - - &call (&label("pic_point")); - &set_label("pic_point"); - &blindpop("ebp"); - &lea ("ebp",&DWP(&label("AES_Te")."-".&label("pic_point"),"ebp")); - - &mov ("ecx",&wparam(1)); # number of bits in key - &cmp ("ecx",128); - &je (&label("10rounds")); - &cmp ("ecx",192); - &je (&label("12rounds")); - &cmp ("ecx",256); - &je (&label("14rounds")); - &mov ("eax",-2); # invalid number of bits - &jmp (&label("exit")); - - &set_label("10rounds"); - &mov ("eax",&DWP(0,"esi")); # copy first 4 dwords - &mov ("ebx",&DWP(4,"esi")); - &mov ("ecx",&DWP(8,"esi")); - &mov ("edx",&DWP(12,"esi")); - &mov (&DWP(0,"edi"),"eax"); - &mov (&DWP(4,"edi"),"ebx"); - &mov (&DWP(8,"edi"),"ecx"); - &mov (&DWP(12,"edi"),"edx"); - - &xor ("ecx","ecx"); - &jmp (&label("10shortcut")); - - &align (4); - &set_label("10loop"); - &mov ("eax",&DWP(0,"edi")); # rk[0] - &mov ("edx",&DWP(12,"edi")); # rk[3] - &set_label("10shortcut"); - &enckey (); - - &mov (&DWP(16,"edi"),"eax"); # rk[4] - &xor ("eax",&DWP(4,"edi")); - &mov (&DWP(20,"edi"),"eax"); # rk[5] - &xor ("eax",&DWP(8,"edi")); - &mov (&DWP(24,"edi"),"eax"); # rk[6] - &xor ("eax",&DWP(12,"edi")); - &mov (&DWP(28,"edi"),"eax"); # rk[7] - &inc ("ecx"); - &add ("edi",16); - &cmp ("ecx",10); - &jl (&label("10loop")); - - &mov (&DWP(80,"edi"),10); # setup number of rounds - &xor ("eax","eax"); - &jmp (&label("exit")); - - &set_label("12rounds"); - &mov ("eax",&DWP(0,"esi")); # copy first 6 dwords - &mov ("ebx",&DWP(4,"esi")); - &mov ("ecx",&DWP(8,"esi")); - &mov ("edx",&DWP(12,"esi")); - &mov (&DWP(0,"edi"),"eax"); - &mov (&DWP(4,"edi"),"ebx"); - &mov (&DWP(8,"edi"),"ecx"); - &mov (&DWP(12,"edi"),"edx"); - &mov ("ecx",&DWP(16,"esi")); - &mov ("edx",&DWP(20,"esi")); - &mov (&DWP(16,"edi"),"ecx"); - &mov (&DWP(20,"edi"),"edx"); - - &xor ("ecx","ecx"); - &jmp (&label("12shortcut")); - - &align (4); - &set_label("12loop"); - &mov ("eax",&DWP(0,"edi")); # rk[0] - &mov ("edx",&DWP(20,"edi")); # rk[5] - &set_label("12shortcut"); - &enckey (); - - &mov (&DWP(24,"edi"),"eax"); # rk[6] - &xor ("eax",&DWP(4,"edi")); - &mov (&DWP(28,"edi"),"eax"); # rk[7] - &xor ("eax",&DWP(8,"edi")); - &mov (&DWP(32,"edi"),"eax"); # rk[8] - &xor ("eax",&DWP(12,"edi")); - &mov (&DWP(36,"edi"),"eax"); # rk[9] - - &cmp ("ecx",7); - &je (&label("12break")); - &inc ("ecx"); - - &xor ("eax",&DWP(16,"edi")); - &mov (&DWP(40,"edi"),"eax"); # rk[10] - &xor ("eax",&DWP(20,"edi")); - &mov (&DWP(44,"edi"),"eax"); # rk[11] - - &add ("edi",24); - &jmp (&label("12loop")); - - &set_label("12break"); - &mov (&DWP(72,"edi"),12); # setup number of rounds - &xor ("eax","eax"); - &jmp (&label("exit")); - - &set_label("14rounds"); - &mov ("eax",&DWP(0,"esi")); # copy first 8 dwords - &mov ("ebx",&DWP(4,"esi")); - &mov ("ecx",&DWP(8,"esi")); - &mov ("edx",&DWP(12,"esi")); - &mov (&DWP(0,"edi"),"eax"); - &mov (&DWP(4,"edi"),"ebx"); - &mov (&DWP(8,"edi"),"ecx"); - &mov (&DWP(12,"edi"),"edx"); - &mov ("eax",&DWP(16,"esi")); - &mov ("ebx",&DWP(20,"esi")); - &mov ("ecx",&DWP(24,"esi")); - &mov ("edx",&DWP(28,"esi")); - &mov (&DWP(16,"edi"),"eax"); - &mov (&DWP(20,"edi"),"ebx"); - &mov (&DWP(24,"edi"),"ecx"); - &mov (&DWP(28,"edi"),"edx"); - - &xor ("ecx","ecx"); - &jmp (&label("14shortcut")); - - &align (4); - &set_label("14loop"); - &mov ("edx",&DWP(28,"edi")); # rk[7] - &set_label("14shortcut"); - &mov ("eax",&DWP(0,"edi")); # rk[0] - - &enckey (); - - &mov (&DWP(32,"edi"),"eax"); # rk[8] - &xor ("eax",&DWP(4,"edi")); - &mov (&DWP(36,"edi"),"eax"); # rk[9] - &xor ("eax",&DWP(8,"edi")); - &mov (&DWP(40,"edi"),"eax"); # rk[10] - &xor ("eax",&DWP(12,"edi")); - &mov (&DWP(44,"edi"),"eax"); # rk[11] - - &cmp ("ecx",6); - &je (&label("14break")); - &inc ("ecx"); - - &mov ("edx","eax"); - &mov ("eax",&DWP(16,"edi")); # rk[4] - &movz ("esi",&LB("edx")); # rk[11]>>0 - &mov ("ebx",&DWP(2,"ebp","esi",8)); - &movz ("esi",&HB("edx")); # rk[11]>>8 - &and ("ebx",0x000000FF); - &xor ("eax","ebx"); - - &mov ("ebx",&DWP(0,"ebp","esi",8)); - &shr ("edx",16); - &and ("ebx",0x0000FF00); - &movz ("esi",&LB("edx")); # rk[11]>>16 - &xor ("eax","ebx"); - - &mov ("ebx",&DWP(0,"ebp","esi",8)); - &movz ("esi",&HB("edx")); # rk[11]>>24 - &and ("ebx",0x00FF0000); - &xor ("eax","ebx"); - - &mov ("ebx",&DWP(2,"ebp","esi",8)); - &and ("ebx",0xFF000000); - &xor ("eax","ebx"); - - &mov (&DWP(48,"edi"),"eax"); # rk[12] - &xor ("eax",&DWP(20,"edi")); - &mov (&DWP(52,"edi"),"eax"); # rk[13] - &xor ("eax",&DWP(24,"edi")); - &mov (&DWP(56,"edi"),"eax"); # rk[14] - &xor ("eax",&DWP(28,"edi")); - &mov (&DWP(60,"edi"),"eax"); # rk[15] - - &add ("edi",32); - &jmp (&label("14loop")); - - &set_label("14break"); - &mov (&DWP(48,"edi"),14); # setup number of rounds - &xor ("eax","eax"); - &jmp (&label("exit")); - - &set_label("badpointer"); - &mov ("eax",-1); - &set_label("exit"); -&function_end("AES_set_encrypt_key"); - -sub deckey() -{ my ($i,$ptr,$te,$td) = @_; - - &mov ("eax",&DWP($i,$ptr)); - &mov ("edx","eax"); - &movz ("ebx",&HB("eax")); - &shr ("edx",16); - &and ("eax",0xFF); - &movz ("eax",&BP(2,$te,"eax",8)); - &movz ("ebx",&BP(2,$te,"ebx",8)); - &mov ("eax",&DWP(0,$td,"eax",8)); - &xor ("eax",&DWP(3,$td,"ebx",8)); - &movz ("ebx",&HB("edx")); - &and ("edx",0xFF); - &movz ("edx",&BP(2,$te,"edx",8)); - &movz ("ebx",&BP(2,$te,"ebx",8)); - &xor ("eax",&DWP(2,$td,"edx",8)); - &xor ("eax",&DWP(1,$td,"ebx",8)); - &mov (&DWP($i,$ptr),"eax"); -} - -# int AES_set_decrypt_key(const unsigned char *userKey, const int bits, -# AES_KEY *key) -&public_label("AES_Td"); -&public_label("AES_Te"); -&function_begin_B("AES_set_decrypt_key"); - &mov ("eax",&wparam(0)); - &mov ("ecx",&wparam(1)); - &mov ("edx",&wparam(2)); - &sub ("esp",12); - &mov (&DWP(0,"esp"),"eax"); - &mov (&DWP(4,"esp"),"ecx"); - &mov (&DWP(8,"esp"),"edx"); - &call ("_x86_AES_set_encrypt_key"); - &add ("esp",12); - &cmp ("eax",0); - &je (&label("proceed")); - &ret (); - - &set_label("proceed"); - &push ("ebp"); - &push ("ebx"); - &push ("esi"); - &push ("edi"); - - &mov ("esi",&wparam(2)); - &mov ("ecx",&DWP(240,"esi")); # pull number of rounds - &lea ("ecx",&DWP(0,"","ecx",4)); - &lea ("edi",&DWP(0,"esi","ecx",4)); # pointer to last chunk - - &align (4); - &set_label("invert"); # invert order of chunks - &mov ("eax",&DWP(0,"esi")); - &mov ("ebx",&DWP(4,"esi")); - &mov ("ecx",&DWP(0,"edi")); - &mov ("edx",&DWP(4,"edi")); - &mov (&DWP(0,"edi"),"eax"); - &mov (&DWP(4,"edi"),"ebx"); - &mov (&DWP(0,"esi"),"ecx"); - &mov (&DWP(4,"esi"),"edx"); - &mov ("eax",&DWP(8,"esi")); - &mov ("ebx",&DWP(12,"esi")); - &mov ("ecx",&DWP(8,"edi")); - &mov ("edx",&DWP(12,"edi")); - &mov (&DWP(8,"edi"),"eax"); - &mov (&DWP(12,"edi"),"ebx"); - &mov (&DWP(8,"esi"),"ecx"); - &mov (&DWP(12,"esi"),"edx"); - &add ("esi",16); - &sub ("edi",16); - &cmp ("esi","edi"); - &jne (&label("invert")); - - &call (&label("pic_point")); - &set_label("pic_point"); - blindpop("ebp"); - &lea ("edi",&DWP(&label("AES_Td")."-".&label("pic_point"),"ebp")); - &lea ("ebp",&DWP(&label("AES_Te")."-".&label("pic_point"),"ebp")); - - &mov ("esi",&wparam(2)); - &mov ("ecx",&DWP(240,"esi")); # pull number of rounds - &dec ("ecx"); - &align (4); - &set_label("permute"); # permute the key schedule - &add ("esi",16); - &deckey (0,"esi","ebp","edi"); - &deckey (4,"esi","ebp","edi"); - &deckey (8,"esi","ebp","edi"); - &deckey (12,"esi","ebp","edi"); - &dec ("ecx"); - &jnz (&label("permute")); - - &xor ("eax","eax"); # return success -&function_end("AES_set_decrypt_key"); - -&asm_finish(); -- cgit v1.2.3-55-g6feb