diff options
author | Andy Polyakov <appro@openssl.org> | 2005-07-18 09:15:04 +0000 |
---|---|---|
committer | Andy Polyakov <appro@openssl.org> | 2005-07-18 09:15:04 +0000 |
commit | afbe674edb96a8359ab779c5f28e7badfd88e64d (patch) | |
tree | 946693ee2bbeaa4b392e99b768bd9f2e245a0b81 /crypto/aes/asm | |
parent | f42e6d24f2fddfa68d4cbb722c9de4db3d9a7cce (diff) |
~15% better AES x86_64 assembler.
Diffstat (limited to 'crypto/aes/asm')
-rwxr-xr-x | crypto/aes/asm/aes-x86_64.pl | 690 |
1 files changed, 517 insertions, 173 deletions
diff --git a/crypto/aes/asm/aes-x86_64.pl b/crypto/aes/asm/aes-x86_64.pl index f39a36ab3d..8abbc201f8 100755 --- a/crypto/aes/asm/aes-x86_64.pl +++ b/crypto/aes/asm/aes-x86_64.pl @@ -6,9 +6,9 @@ # forms are granted according to the OpenSSL license. # ==================================================================== # -# Version 1.0. +# Version 1.1. # -# aes-*-cbc benchmarks are improved by 50% [compared to gcc 3.3.2 on +# aes-*-cbc benchmarks are improved by >70% [compared to gcc 3.3.2 on # Opteron 240 CPU] plus all the bells-n-whistles from 32-bit version # [you'll notice a lot of resemblance], such as compressed S-boxes # in little-endian byte order, prefetch of these tables in CBC mode, @@ -18,14 +18,14 @@ # Performance in number of cycles per processed byte for 128-bit key: # # ECB CBC encrypt -# AMD64 15.6 14.6(*) -# EM64T 23.3(**) 21.4(*) +# AMD64 13.7 13.0(*) +# EM64T 20.2 18.6(*) # # (*) CBC benchmarks are better than ECB thanks to custom ABI used # by the private block encryption function. -# (**) This module exhibits virtually same ECB performance as 32-bit -# counterpart on [current] Intel CPU. +$verticalspin=1; # unlike 32-bit version $verticalspin performs + # ~15% better on both AMD and Intel cores $output=shift; open STDOUT,"| $^X ../perlasm/x86_64-xlate.pl $output"; @@ -35,20 +35,22 @@ $s0="%eax"; $s1="%ebx"; $s2="%ecx"; $s3="%edx"; -$inp="%rdi"; -$out="%rsi"; -$acc0="%ebp"; -$acc1="%r8d"; -$acc2="%r9d"; +$acc0="%esi"; +$acc1="%edi"; +$acc2="%ebp"; +$inp="%r8"; +$out="%r9"; $t0="%r10d"; $t1="%r11d"; $t2="%r12d"; -$cnt="%r13d"; -$tbl="%r14"; +$rnds="%r13d"; +$sbox="%r14"; $key="%r15"; -sub hi() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1h/; $r; } -sub lo() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/; $r; } +sub hi() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1h/; $r; } +sub lo() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/; + $r =~ s/%[er]([sd]i)/%\1l/; + $r =~ s/%(r[0-9]+)[d]?/%\1b/; $r; } sub _data_word() { my $i; while(defined($i=shift)) { $code.=sprintf".long\t0x%08x,0x%08x\n",$i,$i; } @@ -61,6 +63,169 @@ sub data_word() $code.=sprintf"0x%08x\n",$last; } +sub encvert() +{ my $t3="%r8d"; # zaps $inp! + my $qs0='"$s0"'; + my $qs1='"$s1"'; + my $qs2='"$s2"'; + my $qs3='"$s3"'; + +$code.=<<___; + # favor 3-way issue Opteron pipeline... + movzb `&lo($qs0)`,$acc0 + movzb `&lo($qs1)`,$acc1 + movzb `&lo($qs2)`,$acc2 + mov 0($sbox,$acc0,8),$t0 + mov 0($sbox,$acc1,8),$t1 + mov 0($sbox,$acc2,8),$t2 + + movzb `&hi($qs1)`,$acc0 + movzb `&hi($qs2)`,$acc1 + movzb `&lo($qs3)`,$acc2 + xor 3($sbox,$acc0,8),$t0 + xor 3($sbox,$acc1,8),$t1 + mov 0($sbox,$acc2,8),$t3 + + movzb `&hi($qs3)`,$acc0 + shr \$16,$s2 + movzb `&hi($qs0)`,$acc2 + xor 3($sbox,$acc0,8),$t2 + shr \$16,$s3 + xor 3($sbox,$acc2,8),$t3 + + shr \$16,$s1 + lea 16($key),$key + shr \$16,$s0 + + movzb `&lo($qs2)`,$acc0 + movzb `&lo($qs3)`,$acc1 + movzb `&lo($qs0)`,$acc2 + xor 2($sbox,$acc0,8),$t0 + xor 2($sbox,$acc1,8),$t1 + xor 2($sbox,$acc2,8),$t2 + + movzb `&hi($qs3)`,$acc0 + movzb `&hi($qs0)`,$acc1 + movzb `&lo($qs1)`,$acc2 + xor 1($sbox,$acc0,8),$t0 + xor 1($sbox,$acc1,8),$t1 + xor 2($sbox,$acc2,8),$t3 + + mov 12($key),$s3 + movzb `&hi($qs1)`,$acc1 + movzb `&hi($qs2)`,$acc2 + mov 0($key),$s0 + xor 1($sbox,$acc1,8),$t2 + xor 1($sbox,$acc2,8),$t3 + + mov 4($key),$s1 + mov 8($key),$s2 + xor $t0,$s0 + xor $t1,$s1 + xor $t2,$s2 + xor $t3,$s3 +___ +} + +sub enclastvert() +{ my $t3="%r8d"; # zaps $inp! + my $qs0='"$s0"'; + my $qs1='"$s1"'; + my $qs2='"$s2"'; + my $qs3='"$s3"'; + +$code.=<<___; + movzb `&lo($qs0)`,$acc0 + movzb `&lo($qs1)`,$acc1 + movzb `&lo($qs2)`,$acc2 + mov 2($sbox,$acc0,8),$t0 + mov 2($sbox,$acc1,8),$t1 + mov 2($sbox,$acc2,8),$t2 + + and \$0x000000ff,$t0 + and \$0x000000ff,$t1 + and \$0x000000ff,$t2 + + movzb `&lo($qs3)`,$acc0 + movzb `&hi($qs1)`,$acc1 + movzb `&hi($qs2)`,$acc2 + mov 2($sbox,$acc0,8),$t3 + mov 0($sbox,$acc1,8),$acc1 #$t0 + mov 0($sbox,$acc2,8),$acc2 #$t1 + + and \$0x000000ff,$t3 + and \$0x0000ff00,$acc1 + and \$0x0000ff00,$acc2 + + xor $acc1,$t0 + xor $acc2,$t1 + shr \$16,$s2 + + movzb `&hi($qs3)`,$acc0 + movzb `&hi($qs0)`,$acc1 + shr \$16,$s3 + mov 0($sbox,$acc0,8),$acc0 #$t2 + mov 0($sbox,$acc1,8),$acc1 #$t3 + + and \$0x0000ff00,$acc0 + and \$0x0000ff00,$acc1 + shr \$16,$s1 + xor $acc0,$t2 + xor $acc1,$t3 + shr \$16,$s0 + + movzb `&lo($qs2)`,$acc0 + movzb `&lo($qs3)`,$acc1 + movzb `&lo($qs0)`,$acc2 + mov 0($sbox,$acc0,8),$acc0 #$t0 + mov 0($sbox,$acc1,8),$acc1 #$t1 + mov 0($sbox,$acc2,8),$acc2 #$t2 + + and \$0x00ff0000,$acc0 + and \$0x00ff0000,$acc1 + and \$0x00ff0000,$acc2 + + xor $acc0,$t0 + xor $acc1,$t1 + xor $acc2,$t2 + + movzb `&lo($qs1)`,$acc0 + movzb `&hi($qs3)`,$acc1 + movzb `&hi($qs0)`,$acc2 + mov 0($sbox,$acc0,8),$acc0 #$t3 + mov 2($sbox,$acc1,8),$acc1 #$t0 + mov 2($sbox,$acc2,8),$acc2 #$t1 + + and \$0x00ff0000,$acc0 + and \$0xff000000,$acc1 + and \$0xff000000,$acc2 + + xor $acc0,$t3 + xor $acc1,$t0 + xor $acc2,$t1 + + movzb `&hi($qs1)`,$acc0 + movzb `&hi($qs2)`,$acc1 + mov 16+12($key),$s3 + mov 2($sbox,$acc0,8),$acc0 #$t2 + mov 2($sbox,$acc1,8),$acc1 #$t3 + mov 16+0($key),$s0 + + and \$0xff000000,$acc0 + and \$0xff000000,$acc1 + + xor $acc0,$t2 + xor $acc1,$t3 + + mov 16+4($key),$s1 + mov 16+8($key),$s2 + xor $t0,$s0 + xor $t1,$s1 + xor $t2,$s2 + xor $t3,$s3 +___ +} + sub encstep() { my ($i,@s) = @_; my $tmp0=$acc0; @@ -68,24 +233,28 @@ sub encstep() my $tmp2=$acc2; my $out=($t0,$t1,$t2,$s[0])[$i]; - $code.=" mov $s[0],$out\n" if ($i!=3); - $tmp1=$s[2] if ($i==3); + if ($i==3) { + $tmp0=$s[1]; + $tmp1=$s[2]; + $tmp2=$s[3]; + } + $code.=" movzb ".&lo($s[0]).",$out\n"; $code.=" mov $s[2],$tmp1\n" if ($i!=3); - $code.=" and \$0xFF,$out\n"; + $code.=" lea 16($key),$key\n" if ($i==0); + + $code.=" movzb ".&hi($s[1]).",$tmp0\n"; + $code.=" mov 0($sbox,$out,8),$out\n"; - $code.=" mov 0($tbl,$out,8),$out\n"; $code.=" shr \$16,$tmp1\n"; - $tmp2=$s[3] if ($i==3); $code.=" mov $s[3],$tmp2\n" if ($i!=3); + $code.=" xor 3($sbox,$tmp0,8),$out\n"; - $tmp0=$s[1] if ($i==3); - $code.=" movzb ".&hi($s[1]).",$tmp0\n"; - $code.=" and \$0xFF,$tmp1\n"; + $code.=" movzb ".&lo($tmp1).",$tmp1\n"; $code.=" shr \$24,$tmp2\n"; + $code.=" xor 4*$i($key),$out\n"; - $code.=" xor 3($tbl,$tmp0,8),$out\n"; - $code.=" xor 2($tbl,$tmp1,8),$out\n"; - $code.=" xor 1($tbl,$tmp2,8),$out\n"; + $code.=" xor 2($sbox,$tmp1,8),$out\n"; + $code.=" xor 1($sbox,$tmp2,8),$out\n"; $code.=" mov $t0,$s[1]\n" if ($i==3); $code.=" mov $t1,$s[2]\n" if ($i==3); @@ -100,25 +269,26 @@ sub enclast() my $tmp2=$acc2; my $out=($t0,$t1,$t2,$s[0])[$i]; - $code.=" mov $s[0],$out\n" if ($i!=3); - $tmp1=$s[2] if ($i==3); + if ($i==3) { + $tmp0=$s[1]; + $tmp1=$s[2]; + $tmp2=$s[3]; + } + $code.=" movzb ".&lo($s[0]).",$out\n"; $code.=" mov $s[2],$tmp1\n" if ($i!=3); - $code.=" and \$0xFF,$out\n"; - $code.=" mov 2($tbl,$out,8),$out\n"; + $code.=" mov 2($sbox,$out,8),$out\n"; $code.=" shr \$16,$tmp1\n"; - $tmp2=$s[3] if ($i==3); $code.=" mov $s[3],$tmp2\n" if ($i!=3); $code.=" and \$0x000000ff,$out\n"; - $tmp0=$s[1] if ($i==3); $code.=" movzb ".&hi($s[1]).",$tmp0\n"; - $code.=" and \$0xFF,$tmp1\n"; + $code.=" movzb ".&lo($tmp1).",$tmp1\n"; $code.=" shr \$24,$tmp2\n"; - $code.=" mov 0($tbl,$tmp0,8),$tmp0\n"; - $code.=" mov 0($tbl,$tmp1,8),$tmp1\n"; - $code.=" mov 2($tbl,$tmp2,8),$tmp2\n"; + $code.=" mov 0($sbox,$tmp0,8),$tmp0\n"; + $code.=" mov 0($sbox,$tmp1,8),$tmp1\n"; + $code.=" mov 2($sbox,$tmp2,8),$tmp2\n"; $code.=" and \$0x0000ff00,$tmp0\n"; $code.=" and \$0x00ff0000,$tmp1\n"; @@ -142,36 +312,35 @@ _x86_64_AES_encrypt: xor 8($key),$s2 xor 12($key),$s3 - mov 240($key),$cnt # load key->rounds - sub \$1,$cnt -.align 4 + mov 240($key),$rnds # load key->rounds + sub \$1,$rnds + jmp .Lenc_loop +.align 16 .Lenc_loop: ___ - &encstep(0,$s0,$s1,$s2,$s3); - &encstep(1,$s1,$s2,$s3,$s0); - &encstep(2,$s2,$s3,$s0,$s1); - &encstep(3,$s3,$s0,$s1,$s2); + if ($verticalspin) { &encvert(); } + else { &encstep(0,$s0,$s1,$s2,$s3); + &encstep(1,$s1,$s2,$s3,$s0); + &encstep(2,$s2,$s3,$s0,$s1); + &encstep(3,$s3,$s0,$s1,$s2); + } $code.=<<___; - lea 16($key),$key - xor 0($key),$s0 # xor with key - xor 4($key),$s1 - xor 8($key),$s2 - xor 12($key),$s3 - - sub \$1,$cnt + sub \$1,$rnds jnz .Lenc_loop ___ - &enclast(0,$s0,$s1,$s2,$s3); - &enclast(1,$s1,$s2,$s3,$s0); - &enclast(2,$s2,$s3,$s0,$s1); - &enclast(3,$s3,$s0,$s1,$s2); + if ($verticalspin) { &enclastvert(); } + else { &enclast(0,$s0,$s1,$s2,$s3); + &enclast(1,$s1,$s2,$s3,$s0); + &enclast(2,$s2,$s3,$s0,$s1); + &enclast(3,$s3,$s0,$s1,$s2); + $code.=<<___; + xor 16+0($key),$s0 # xor with key + xor 16+4($key),$s1 + xor 16+8($key),$s2 + xor 16+12($key),$s3 +___ + } $code.=<<___; - lea 16($key),$key - xor 0($key),$s0 # xor with key - xor 4($key),$s1 - xor 8($key),$s2 - xor 12($key),$s3 - .byte 0xf3,0xc3 # rep ret .size _x86_64_AES_encrypt,.-_x86_64_AES_encrypt ___ @@ -190,9 +359,11 @@ AES_encrypt: push %r15 mov %rdx,$key + mov %rdi,$inp + mov %rsi,$out - .picmeup $tbl - lea AES_Te-.($tbl),$tbl + .picmeup $sbox + lea AES_Te-.($sbox),$sbox mov 0($inp),$s0 mov 4($inp),$s1 @@ -218,6 +389,169 @@ ___ #------------------------------------------------------------------# +sub decvert() +{ my $t3="%r8d"; # zaps $inp! + my $qs0='"$s0"'; + my $qs1='"$s1"'; + my $qs2='"$s2"'; + my $qs3='"$s3"'; + +$code.=<<___; + # favor 3-way issue Opteron pipeline... + movzb `&lo($qs0)`,$acc0 + movzb `&lo($qs1)`,$acc1 + movzb `&lo($qs2)`,$acc2 + mov 0($sbox,$acc0,8),$t0 + mov 0($sbox,$acc1,8),$t1 + mov 0($sbox,$acc2,8),$t2 + + movzb `&hi($qs3)`,$acc0 + movzb `&hi($qs0)`,$acc1 + movzb `&lo($qs3)`,$acc2 + xor 3($sbox,$acc0,8),$t0 + xor 3($sbox,$acc1,8),$t1 + mov 0($sbox,$acc2,8),$t3 + + movzb `&hi($qs1)`,$acc0 + shr \$16,$s0 + movzb `&hi($qs2)`,$acc2 + xor 3($sbox,$acc0,8),$t2 + shr \$16,$s3 + xor 3($sbox,$acc2,8),$t3 + + shr \$16,$s1 + lea 16($key),$key + shr \$16,$s2 + + movzb `&lo($qs2)`,$acc0 + movzb `&lo($qs3)`,$acc1 + movzb `&lo($qs0)`,$acc2 + xor 2($sbox,$acc0,8),$t0 + xor 2($sbox,$acc1,8),$t1 + xor 2($sbox,$acc2,8),$t2 + + movzb `&hi($qs1)`,$acc0 + movzb `&hi($qs2)`,$acc1 + movzb `&lo($qs1)`,$acc2 + xor 1($sbox,$acc0,8),$t0 + xor 1($sbox,$acc1,8),$t1 + xor 2($sbox,$acc2,8),$t3 + + movzb `&hi($qs3)`,$acc0 + mov 12($key),$s3 + movzb `&hi($qs0)`,$acc2 + xor 1($sbox,$acc0,8),$t2 + mov 0($key),$s0 + xor 1($sbox,$acc2,8),$t3 + + xor $t0,$s0 + mov 4($key),$s1 + mov 8($key),$s2 + xor $t2,$s2 + xor $t1,$s1 + xor $t3,$s3 +___ +} + +sub declastvert() +{ my $t3="%r8d"; # zaps $inp! + my $qs0='"$s0"'; + my $qs1='"$s1"'; + my $qs2='"$s2"'; + my $qs3='"$s3"'; + +$code.=<<___; + movzb `&lo($qs0)`,$acc0 + movzb `&lo($qs1)`,$acc1 + movzb `&lo($qs2)`,$acc2 + mov 2048($sbox,$acc0,4),$t0 + mov 2048($sbox,$acc1,4),$t1 + mov 2048($sbox,$acc2,4),$t2 + + and \$0x000000ff,$t0 + and \$0x000000ff,$t1 + and \$0x000000ff,$t2 + + movzb `&lo($qs3)`,$acc0 + movzb `&hi($qs3)`,$acc1 + movzb `&hi($qs0)`,$acc2 + mov 2048($sbox,$acc0,4),$t3 + mov 2048($sbox,$acc1,4),$acc1 #$t0 + mov 2048($sbox,$acc2,4),$acc2 #$t1 + + and \$0x000000ff,$t3 + and \$0x0000ff00,$acc1 + and \$0x0000ff00,$acc2 + + xor $acc1,$t0 + xor $acc2,$t1 + shr \$16,$s3 + + movzb `&hi($qs1)`,$acc0 + movzb `&hi($qs2)`,$acc1 + shr \$16,$s0 + mov 2048($sbox,$acc0,4),$acc0 #$t2 + mov 2048($sbox,$acc1,4),$acc1 #$t3 + + and \$0x0000ff00,$acc0 + and \$0x0000ff00,$acc1 + shr \$16,$s1 + xor $acc0,$t2 + xor $acc1,$t3 + shr \$16,$s2 + + movzb `&lo($qs2)`,$acc0 + movzb `&lo($qs3)`,$acc1 + movzb `&lo($qs0)`,$acc2 + mov 2048($sbox,$acc0,4),$acc0 #$t0 + mov 2048($sbox,$acc1,4),$acc1 #$t1 + mov 2048($sbox,$acc2,4),$acc2 #$t2 + + and \$0x00ff0000,$acc0 + and \$0x00ff0000,$acc1 + and \$0x00ff0000,$acc2 + + xor $acc0,$t0 + xor $acc1,$t1 + xor $acc2,$t2 + + movzb `&lo($qs1)`,$acc0 + movzb `&hi($qs1)`,$acc1 + movzb `&hi($qs2)`,$acc2 + mov 2048($sbox,$acc0,4),$acc0 #$t3 + mov 2048($sbox,$acc1,4),$acc1 #$t0 + mov 2048($sbox,$acc2,4),$acc2 #$t1 + + and \$0x00ff0000,$acc0 + and \$0xff000000,$acc1 + and \$0xff000000,$acc2 + + xor $acc0,$t3 + xor $acc1,$t0 + xor $acc2,$t1 + + movzb `&hi($qs3)`,$acc0 + movzb `&hi($qs0)`,$acc1 + mov 16+12($key),$s3 + mov 2048($sbox,$acc0,4),$acc0 #$t2 + mov 2048($sbox,$acc1,4),$acc1 #$t3 + mov 16+0($key),$s0 + + and \$0xff000000,$acc0 + and \$0xff000000,$acc1 + + xor $acc0,$t2 + xor $acc1,$t3 + + mov 16+4($key),$s1 + mov 16+8($key),$s2 + xor $t0,$s0 + xor $t1,$s1 + xor $t2,$s2 + xor $t3,$s3 +___ +} + sub decstep() { my ($i,@s) = @_; my $tmp0=$acc0; @@ -230,7 +564,7 @@ sub decstep() $code.=" mov $s[2],$tmp1\n" if ($i!=3); $code.=" and \$0xFF,$out\n"; - $code.=" mov 0($tbl,$out,8),$out\n"; + $code.=" mov 0($sbox,$out,8),$out\n"; $code.=" shr \$16,$tmp1\n"; $tmp2=$s[3] if ($i==3); $code.=" mov $s[3],$tmp2\n" if ($i!=3); @@ -240,9 +574,9 @@ sub decstep() $code.=" and \$0xFF,$tmp1\n"; $code.=" shr \$24,$tmp2\n"; - $code.=" xor 3($tbl,$tmp0,8),$out\n"; - $code.=" xor 2($tbl,$tmp1,8),$out\n"; - $code.=" xor 1($tbl,$tmp2,8),$out\n"; + $code.=" xor 3($sbox,$tmp0,8),$out\n"; + $code.=" xor 2($sbox,$tmp1,8),$out\n"; + $code.=" xor 1($sbox,$tmp2,8),$out\n"; $code.=" mov $t2,$s[1]\n" if ($i==3); $code.=" mov $t1,$s[2]\n" if ($i==3); @@ -262,7 +596,7 @@ sub declast() $code.=" mov $s[2],$tmp1\n" if ($i!=3); $code.=" and \$0xFF,$out\n"; - $code.=" mov 2048($tbl,$out,4),$out\n"; + $code.=" mov 2048($sbox,$out,4),$out\n"; $code.=" shr \$16,$tmp1\n"; $tmp2=$s[3] if ($i==3); $code.=" mov $s[3],$tmp2\n" if ($i!=3); @@ -273,9 +607,9 @@ sub declast() $code.=" and \$0xFF,$tmp1\n"; $code.=" shr \$24,$tmp2\n"; - $code.=" mov 2048($tbl,$tmp0,4),$tmp0\n"; - $code.=" mov 2048($tbl,$tmp1,4),$tmp1\n"; - $code.=" mov 2048($tbl,$tmp2,4),$tmp2\n"; + $code.=" mov 2048($sbox,$tmp0,4),$tmp0\n"; + $code.=" mov 2048($sbox,$tmp1,4),$tmp1\n"; + $code.=" mov 2048($sbox,$tmp2,4),$tmp2\n"; $code.=" and \$0x0000ff00,$tmp0\n"; $code.=" and \$0x00ff0000,$tmp1\n"; @@ -299,36 +633,42 @@ _x86_64_AES_decrypt: xor 8($key),$s2 xor 12($key),$s3 - mov 240($key),$cnt # load key->rounds - sub \$1,$cnt -.align 4 + mov 240($key),$rnds # load key->rounds + sub \$1,$rnds + jmp .Ldec_loop +.align 16 .Ldec_loop: ___ - &decstep(0,$s0,$s3,$s2,$s1); - &decstep(1,$s1,$s0,$s3,$s2); - &decstep(2,$s2,$s1,$s0,$s3); - &decstep(3,$s3,$s2,$s1,$s0); + if ($verticalspin) { &decvert(); } + else { &decstep(0,$s0,$s3,$s2,$s1); + &decstep(1,$s1,$s0,$s3,$s2); + &decstep(2,$s2,$s1,$s0,$s3); + &decstep(3,$s3,$s2,$s1,$s0); + $code.=<<___; + lea 16($key),$key + xor 0($key),$s0 # xor with key + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 +___ + } $code.=<<___; - lea 16($key),$key - xor 0($key),$s0 # xor with key - xor 4($key),$s1 - xor 8($key),$s2 - xor 12($key),$s3 - - sub \$1,$cnt + sub \$1,$rnds jnz .Ldec_loop ___ - &declast(0,$s0,$s3,$s2,$s1); - &declast(1,$s1,$s0,$s3,$s2); - &declast(2,$s2,$s1,$s0,$s3); - &declast(3,$s3,$s2,$s1,$s0); + if ($verticalspin) { &declastvert(); } + else { &declast(0,$s0,$s3,$s2,$s1); + &declast(1,$s1,$s0,$s3,$s2); + &declast(2,$s2,$s1,$s0,$s3); + &declast(3,$s3,$s2,$s1,$s0); + $code.=<<___; + xor 16+0($key),$s0 # xor with key + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 +___ + } $code.=<<___; - lea 16($key),$key - xor 0($key),$s0 # xor with key - xor 4($key),$s1 - xor 8($key),$s2 - xor 12($key),$s3 - .byte 0xf3,0xc3 # rep ret .size _x86_64_AES_decrypt,.-_x86_64_AES_decrypt ___ @@ -347,9 +687,11 @@ AES_decrypt: push %r15 mov %rdx,$key + mov %rdi,$inp + mov %rsi,$out - .picmeup $tbl - lea AES_Td-.($tbl),$tbl + .picmeup $sbox + lea AES_Td-.($sbox),$sbox mov 0($inp),$s0 mov 4($inp),$s1 @@ -719,24 +1061,24 @@ AES_cbc_encrypt: pushfq cld - .picmeup $tbl + .picmeup $sbox .Lcbc_pic_point: cmp \$0,%r9 je .LDECRYPT - lea AES_Te-.Lcbc_pic_point($tbl),$tbl + lea AES_Te-.Lcbc_pic_point($sbox),$sbox # allocate aligned stack frame... lea -64-248(%rsp),$key and \$-64,$key # ... and make it doesn't alias with AES_Te modulo 4096 - mov $tbl,%r10 - lea 2048($tbl),%r11 + mov $sbox,%r10 + lea 2048($sbox),%r11 mov $key,%r12 - and \$0xFFF,%r10 # s = $tbl&0xfff - and \$0xFFF,%r11 # e = ($tbl+2048)&0xfff + and \$0xFFF,%r10 # s = $sbox&0xfff + and \$0xFFF,%r11 # e = ($sbox+2048)&0xfff and \$0xFFF,%r12 # p = %rsp&0xfff cmp %r11,%r12 # if (p=>e) %rsp =- (p-e); @@ -758,13 +1100,15 @@ AES_cbc_encrypt: mov %rdx,$_len # save copy of len mov %rcx,$_key # save copy of key mov %r8,$_ivp # save copy of ivp - movl \$0,$mark # copy of aes_key->rounds = 0; + mov %r8,%rbp # rearrange input arguments + mov %rsi,$out + mov %rdi,$inp mov %rcx,$key # do we copy key schedule to stack? mov $key,%r10 - sub $tbl,%r10 + sub $sbox,%r10 and \$0xfff,%r10 cmp \$2048,%r10 jb .Lcbc_do_ecopy @@ -772,8 +1116,6 @@ AES_cbc_encrypt: jb .Lcbc_skip_ecopy .align 4 .Lcbc_do_ecopy: - mov %rsi,%r10 # backup $inp,$out - mov %rdi,%r11 mov $key,%rsi lea $aes_key,%rdi lea $aes_key,$key @@ -781,29 +1123,27 @@ AES_cbc_encrypt: .long 0x90A548F3 # rep movsq mov (%rsi),%eax # copy aes_key->rounds mov %eax,(%rdi) - mov %r10,%rsi # restore $inp,$out - mov %r11,%rdi .Lcbc_skip_ecopy: mov $key,$keyp # save key pointer mov \$16,%ecx .align 4 .Lcbc_prefetch_te: - mov 0($tbl),%r10 - mov 32($tbl),%r11 - mov 64($tbl),%r12 - mov 96($tbl),%r13 - lea 128($tbl),$tbl + mov 0($sbox),%r10 + mov 32($sbox),%r11 + mov 64($sbox),%r12 + mov 96($sbox),%r13 + lea 128($sbox),$sbox sub \$1,%ecx jnz .Lcbc_prefetch_te - sub \$2048,$tbl + sub \$2048,$sbox test \$-16,%rdx # check upon length mov %rdx,%r10 - mov 0(%r8),$s0 # load iv - mov 4(%r8),$s1 - mov 8(%r8),$s2 - mov 12(%r8),$s3 + mov 0(%rbp),$s0 # load iv + mov 4(%rbp),$s1 + mov 8(%rbp),$s2 + mov 12(%rbp),$s3 jz .Lcbc_enc_tail # short input... .align 4 @@ -812,10 +1152,12 @@ AES_cbc_encrypt: xor 4($inp),$s1 xor 8($inp),$s2 xor 12($inp),$s3 + mov $inp,$ivec # if ($verticalspin) save inp mov $keyp,$key # restore key call _x86_64_AES_encrypt + mov $ivec,$inp # if ($verticalspin) restore inp mov $s0,0($out) mov $s1,4($out) mov $s2,8($out) @@ -830,11 +1172,11 @@ AES_cbc_encrypt: jnz .Lcbc_enc_loop test \$15,%r10 jnz .Lcbc_enc_tail - mov $_ivp,%r10 # restore ivp - mov $s0,0(%r10) # save ivec - mov $s1,4(%r10) - mov $s2,8(%r10) - mov $s3,12(%r10) + mov $_ivp,%rbp # restore ivp + mov $s0,0(%rbp) # save ivec + mov $s1,4(%rbp) + mov $s2,8(%rbp) + mov $s3,12(%rbp) .align 4 .Lcbc_cleanup: @@ -858,36 +1200,34 @@ AES_cbc_encrypt: .align 4 .Lcbc_enc_tail: cmp $inp,$out - mov $inp,%r11 - mov $out,%r12 je .Lcbc_enc_in_place mov %r10,%rcx - xchg %rsi,%rdi + mov $inp,%rsi + mov $out,%rdi .long 0xF689A4F3 # rep movsb .Lcbc_enc_in_place: mov \$16,%rcx # zero tail sub %r10,%rcx xor %rax,%rax .long 0xF689AAF3 # rep stosb - mov %r12,$inp # this is not a mistake! - mov %r12,$out + mov $out,$inp # this is not a mistake! movq \$16,$_len # len=16 jmp .Lcbc_enc_loop # one more spin... #----------------------------- DECRYPT -----------------------------# .align 16 .LDECRYPT: - lea AES_Td-.Lcbc_pic_point($tbl),$tbl + lea AES_Td-.Lcbc_pic_point($sbox),$sbox # allocate aligned stack frame... lea -64-248(%rsp),$key and \$-64,$key # ... and make it doesn't alias with AES_Td modulo 4096 - mov $tbl,%r10 - lea 3072($tbl),%r11 + mov $sbox,%r10 + lea 3072($sbox),%r11 mov $key,%r12 - and \$0xFFF,%r10 # s = $tbl&0xfff - and \$0xFFF,%r11 # e = ($tbl+2048)&0xfff + and \$0xFFF,%r10 # s = $sbox&0xfff + and \$0xFFF,%r11 # e = ($sbox+2048)&0xfff and \$0xFFF,%r12 # p = %rsp&0xfff cmp %r11,%r12 # if (p=>e) %rsp =- (p-e); @@ -909,13 +1249,15 @@ AES_cbc_encrypt: mov %rdx,$_len # save copy of len mov %rcx,$_key # save copy of key mov %r8,$_ivp # save copy of ivp - movl \$0,$mark # copy of aes_key->rounds = 0; + mov %r8,%rbp # rearrange input arguments + mov %rsi,$out + mov %rdi,$inp mov %rcx,$key # do we copy key schedule to stack? mov $key,%r10 - sub $tbl,%r10 + sub $sbox,%r10 and \$0xfff,%r10 cmp \$3072,%r10 jb .Lcbc_do_dcopy @@ -923,8 +1265,6 @@ AES_cbc_encrypt: jb .Lcbc_skip_dcopy .align 4 .Lcbc_do_dcopy: - mov %rsi,%r10 # backup $inp,$out - mov %rdi,%r11 mov $key,%rsi lea $aes_key,%rdi lea $aes_key,$key @@ -932,51 +1272,51 @@ AES_cbc_encrypt: .long 0x90A548F3 # rep movsq mov (%rsi),%eax # copy aes_key->rounds mov %eax,(%rdi) - mov %r10,%rsi # restore $inp,$out - mov %r11,%rdi .Lcbc_skip_dcopy: mov $key,$keyp # save key pointer mov \$24,%ecx .align 4 .Lcbc_prefetch_td: - mov 0($tbl),%r10 - mov 32($tbl),%r11 - mov 64($tbl),%r12 - mov 96($tbl),%r13 - lea 128($tbl),$tbl + mov 0($sbox),%r10 + mov 32($sbox),%r11 + mov 64($sbox),%r12 + mov 96($sbox),%r13 + lea 128($sbox),$sbox sub \$1,%ecx jnz .Lcbc_prefetch_td - sub \$3072,$tbl + sub \$3072,$sbox cmp $inp,$out je .Lcbc_dec_in_place - mov %r8,$ivec + mov %rbp,$ivec .align 4 .Lcbc_dec_loop: mov 0($inp),$s0 # read input mov 4($inp),$s1 mov 8($inp),$s2 mov 12($inp),$s3 + mov $inp,8+$ivec # if ($verticalspin) save inp - mov $keyp,$key # load key + mov $keyp,$key # restore key call _x86_64_AES_decrypt - mov $ivec,%r8 # load ivp - xor 0(%r8),$s0 # xor iv - xor 4(%r8),$s1 - xor 8(%r8),$s2 - xor 12(%r8),$s3 - mov $inp,%r8 # current input, next iv + mov $ivec,%rbp # load ivp + mov 8+$ivec,$inp # if ($verticalspin) restore inp + xor 0(%rbp),$s0 # xor iv + xor 4(%rbp),$s1 + xor 8(%rbp),$s2 + xor 12(%rbp),$s3 + mov $inp,%rbp # current input, next iv - mov $_len,%r10 # load len + mov $_len,%r10 # load len sub \$16,%r10 jc .Lcbc_dec_partial - mov %r10,$_len # update len - mov %r8,$ivec # update ivp + mov %r10,$_len # update len + mov %rbp,$ivec # update ivp - mov $s0,0($out) # write output + mov $s0,0($out) # write output mov $s1,4($out) mov $s2,8($out) mov $s3,12($out) @@ -985,11 +1325,11 @@ AES_cbc_encrypt: lea 16($out),$out jnz .Lcbc_dec_loop .Lcbc_dec_end: - mov $_ivp,%r9 # load user ivp - mov 0(%r8),%r10 # load iv - mov 8(%r8),%r11 - mov %r10,0(%r9) # copy back to user - mov %r11,8(%r9) + mov $_ivp,%r12 # load user ivp + mov 0(%rbp),%r10 # load iv + mov 8(%rbp),%r11 + mov %r10,0(%r12) # copy back to user + mov %r11,8(%r12) jmp .Lcbc_cleanup .align 4 @@ -1007,26 +1347,28 @@ AES_cbc_encrypt: .align 16 .Lcbc_dec_in_place: - mov 0($inp),$s0 # load input + mov 0($inp),$s0 # load input mov 4($inp),$s1 mov 8($inp),$s2 mov 12($inp),$s3 + mov $inp,$ivec # if ($verticalspin) save inp mov $keyp,$key call _x86_64_AES_decrypt - mov $_ivp,%r8 - xor 0(%r8),$s0 - xor 4(%r8),$s1 - xor 8(%r8),$s2 - xor 12(%r8),$s3 + mov $ivec,$inp # if ($verticalspin) restore inp + mov $_ivp,%rbp + xor 0(%rbp),$s0 + xor 4(%rbp),$s1 + xor 8(%rbp),$s2 + xor 12(%rbp),$s3 - mov 0($inp),%r10 # copy input to iv + mov 0($inp),%r10 # copy input to iv mov 8($inp),%r11 - mov %r10,0(%r8) - mov %r11,8(%r8) + mov %r10,0(%rbp) + mov %r11,8(%rbp) - mov $s0,0($out) # save output [zaps input] + mov $s0,0($out) # save output [zaps input] mov $s1,4($out) mov $s2,8($out) mov $s3,12($out) @@ -1044,7 +1386,7 @@ AES_cbc_encrypt: .Lcbc_dec_in_place_partial: # one can argue if this is actually required lea ($out,%rcx),%rdi - lea (%r8,%rcx),%rsi + lea (%rbp,%rcx),%rsi neg %rcx .long 0xF689A4F3 # rep movsb # restore tail jmp .Lcbc_cleanup @@ -1262,6 +1604,8 @@ ___ &data_word(0xe1e1e1e1, 0x69696969, 0x14141414, 0x63636363); &data_word(0x55555555, 0x21212121, 0x0c0c0c0c, 0x7d7d7d7d); +$code =~ s/\`([^\`]*)\`/eval($1)/gem; + print $code; close STDOUT; |