diff options
Diffstat (limited to 'openssl/crypto/camellia/asm/cmll-x86.pl')
| -rw-r--r-- | openssl/crypto/camellia/asm/cmll-x86.pl | 1138 |
1 files changed, 1138 insertions, 0 deletions
diff --git a/openssl/crypto/camellia/asm/cmll-x86.pl b/openssl/crypto/camellia/asm/cmll-x86.pl new file mode 100644 index 000000000..0812815bf --- /dev/null +++ b/openssl/crypto/camellia/asm/cmll-x86.pl @@ -0,0 +1,1138 @@ +#!/usr/bin/env perl + +# ==================================================================== +# Copyright (c) 2008 Andy Polyakov <appro@openssl.org> +# +# This module may be used under the terms of either the GNU General +# Public License version 2 or later, the GNU Lesser General Public +# License version 2.1 or later, the Mozilla Public License version +# 1.1 or the BSD License. The exact terms of either license are +# distributed along with this module. For further details see +# http://www.openssl.org/~appro/camellia/. +# ==================================================================== + +# Performance in cycles per processed byte (less is better) in +# 'openssl speed ...' benchmark: +# +# AMD K8 Core2 PIII P4 +# -evp camellia-128-ecb 21.5 22.8 27.0 28.9 +# + over gcc 3.4.6 +90/11% +70/10% +53/4% +160/64% +# + over icc 8.0 +48/19% +21/15% +21/17% +55/37% +# +# camellia-128-cbc 17.3 21.1 23.9 25.9 +# +# 128-bit key setup 196 280 256 240 cycles/key +# + over gcc 3.4.6 +30/0% +17/11% +11/0% +63/40% +# + over icc 8.0 +18/3% +10/0% +10/3% +21/10% +# +# Pairs of numbers in "+" rows represent performance improvement over +# compiler generated position-independent code, PIC, and non-PIC +# respectively. PIC results are of greater relevance, as this module +# is position-independent, i.e. suitable for a shared library or PIE. +# Position independence "costs" one register, which is why compilers +# are so close with non-PIC results, they have an extra register to +# spare. CBC results are better than ECB ones thanks to "zero-copy" +# private _x86_* interface, and are ~30-40% better than with compiler +# generated cmll_cbc.o, and reach ~80-90% of x86_64 performance on +# same CPU (where applicable). + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +push(@INC,"${dir}","${dir}../../perlasm"); +require "x86asm.pl"; + +$OPENSSL=1; + +&asm_init($ARGV[0],"cmll-586.pl",$ARGV[$#ARGV] eq "386"); + +@T=("eax","ebx","ecx","edx"); +$idx="esi"; +$key="edi"; +$Tbl="ebp"; + +# stack frame layout in _x86_Camellia_* routines, frame is allocated +# by caller +$__ra=&DWP(0,"esp"); # return address +$__s0=&DWP(4,"esp"); # s0 backing store +$__s1=&DWP(8,"esp"); # s1 backing store +$__s2=&DWP(12,"esp"); # s2 backing store +$__s3=&DWP(16,"esp"); # s3 backing store +$__end=&DWP(20,"esp"); # pointer to end/start of key schedule + +# stack frame layout in Camellia_[en|crypt] routines, which differs from +# above by 4 and overlaps by pointer to end/start of key schedule +$_end=&DWP(16,"esp"); +$_esp=&DWP(20,"esp"); + +# const unsigned int Camellia_SBOX[4][256]; +# Well, sort of... Camellia_SBOX[0][] is interleaved with [1][], +# and [2][] - with [3][]. This is done to optimize code size. +$SBOX1_1110=0; # Camellia_SBOX[0] +$SBOX4_4404=4; # Camellia_SBOX[1] +$SBOX2_0222=2048; # Camellia_SBOX[2] +$SBOX3_3033=2052; # Camellia_SBOX[3] +&static_label("Camellia_SIGMA"); +&static_label("Camellia_SBOX"); + +sub Camellia_Feistel { +my $i=@_[0]; +my $seed=defined(@_[1])?@_[1]:0; +my $scale=$seed<0?-8:8; +my $frame=defined(@_[2])?@_[2]:0; +my $j=($i&1)*2; +my $t0=@T[($j)%4],$t1=@T[($j+1)%4],$t2=@T[($j+2)%4],$t3=@T[($j+3)%4]; + + &xor ($t0,$idx); # t0^=key[0] + &xor ($t1,&DWP($seed+$i*$scale+4,$key)); # t1^=key[1] + &movz ($idx,&HB($t0)); # (t0>>8)&0xff + &mov ($t3,&DWP($SBOX3_3033,$Tbl,$idx,8)); # t3=SBOX3_3033[0] + &movz ($idx,&LB($t0)); # (t0>>0)&0xff + &xor ($t3,&DWP($SBOX4_4404,$Tbl,$idx,8)); # t3^=SBOX4_4404[0] + &shr ($t0,16); + &movz ($idx,&LB($t1)); # (t1>>0)&0xff + &mov ($t2,&DWP($SBOX1_1110,$Tbl,$idx,8)); # t2=SBOX1_1110[1] + &movz ($idx,&HB($t0)); # (t0>>24)&0xff + &xor ($t3,&DWP($SBOX1_1110,$Tbl,$idx,8)); # t3^=SBOX1_1110[0] + &movz ($idx,&HB($t1)); # (t1>>8)&0xff + &xor ($t2,&DWP($SBOX4_4404,$Tbl,$idx,8)); # t2^=SBOX4_4404[1] + &shr ($t1,16); + &movz ($t0,&LB($t0)); # (t0>>16)&0xff + &xor ($t3,&DWP($SBOX2_0222,$Tbl,$t0,8)); # t3^=SBOX2_0222[0] + &movz ($idx,&HB($t1)); # (t1>>24)&0xff + &mov ($t0,&DWP($frame+4*(($j+3)%4),"esp")); # prefetch "s3" + &xor ($t2,$t3); # t2^=t3 + &rotr ($t3,8); # t3=RightRotate(t3,8) + &xor ($t2,&DWP($SBOX2_0222,$Tbl,$idx,8)); # t2^=SBOX2_0222[1] + &movz ($idx,&LB($t1)); # (t1>>16)&0xff + &mov ($t1,&DWP($frame+4*(($j+2)%4),"esp")); # prefetch "s2" + &xor ($t3,$t0); # t3^=s3 + &xor ($t2,&DWP($SBOX3_3033,$Tbl,$idx,8)); # t2^=SBOX3_3033[1] + &mov ($idx,&DWP($seed+($i+1)*$scale,$key)); # prefetch key[i+1] + &xor ($t3,$t2); # t3^=t2 + &mov (&DWP($frame+4*(($j+3)%4),"esp"),$t3); # s3=t3 + &xor ($t2,$t1); # t2^=s2 + &mov (&DWP($frame+4*(($j+2)%4),"esp"),$t2); # s2=t2 +} + +# void Camellia_EncryptBlock_Rounds( +# int grandRounds, +# const Byte plaintext[], +# const KEY_TABLE_TYPE keyTable, +# Byte ciphertext[]) +&function_begin("Camellia_EncryptBlock_Rounds"); + &mov ("eax",&wparam(0)); # load grandRounds + &mov ($idx,&wparam(1)); # load plaintext pointer + &mov ($key,&wparam(2)); # load key schedule pointer + + &mov ("ebx","esp"); + &sub ("esp",7*4); # place for s[0-3],keyEnd,esp and ra + &and ("esp",-64); + + # place stack frame just "above mod 1024" the key schedule + # this ensures that cache associativity of 2 suffices + &lea ("ecx",&DWP(-64-63,$key)); + &sub ("ecx","esp"); + &neg ("ecx"); + &and ("ecx",0x3C0); # modulo 1024, but aligned to cache-line + &sub ("esp","ecx"); + &add ("esp",4); # 4 is reserved for callee's return address + + &shl ("eax",6); + &lea ("eax",&DWP(0,$key,"eax")); + &mov ($_esp,"ebx"); # save %esp + &mov ($_end,"eax"); # save keyEnd + + &call (&label("pic_point")); + &set_label("pic_point"); + &blindpop($Tbl); + &lea ($Tbl,&DWP(&label("Camellia_SBOX")."-".&label("pic_point"),$Tbl)); + + &mov (@T[0],&DWP(0,$idx)); # load plaintext + &mov (@T[1],&DWP(4,$idx)); + &mov (@T[2],&DWP(8,$idx)); + &bswap (@T[0]); + &mov (@T[3],&DWP(12,$idx)); + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + + &call ("_x86_Camellia_encrypt"); + + &mov ("esp",$_esp); + &bswap (@T[0]); + &mov ($idx,&wparam(3)); # load ciphertext pointer + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + &mov (&DWP(0,$idx),@T[0]); # write ciphertext + &mov (&DWP(4,$idx),@T[1]); + &mov (&DWP(8,$idx),@T[2]); + &mov (&DWP(12,$idx),@T[3]); +&function_end("Camellia_EncryptBlock_Rounds"); +# V1.x API +&function_begin_B("Camellia_EncryptBlock"); + &mov ("eax",128); + &sub ("eax",&wparam(0)); # load keyBitLength + &mov ("eax",3); + &adc ("eax",0); # keyBitLength==128?3:4 + &mov (&wparam(0),"eax"); + &jmp (&label("Camellia_EncryptBlock_Rounds")); +&function_end_B("Camellia_EncryptBlock"); + +if ($OPENSSL) { +# void Camellia_encrypt( +# const unsigned char *in, +# unsigned char *out, +# const CAMELLIA_KEY *key) +&function_begin("Camellia_encrypt"); + &mov ($idx,&wparam(0)); # load plaintext pointer + &mov ($key,&wparam(2)); # load key schedule pointer + + &mov ("ebx","esp"); + &sub ("esp",7*4); # place for s[0-3],keyEnd,esp and ra + &and ("esp",-64); + &mov ("eax",&DWP(272,$key)); # load grandRounds counter + + # place stack frame just "above mod 1024" the key schedule + # this ensures that cache associativity of 2 suffices + &lea ("ecx",&DWP(-64-63,$key)); + &sub ("ecx","esp"); + &neg ("ecx"); + &and ("ecx",0x3C0); # modulo 1024, but aligned to cache-line + &sub ("esp","ecx"); + &add ("esp",4); # 4 is reserved for callee's return address + + &shl ("eax",6); + &lea ("eax",&DWP(0,$key,"eax")); + &mov ($_esp,"ebx"); # save %esp + &mov ($_end,"eax"); # save keyEnd + + &call (&label("pic_point")); + &set_label("pic_point"); + &blindpop($Tbl); + &lea ($Tbl,&DWP(&label("Camellia_SBOX")."-".&label("pic_point"),$Tbl)); + + &mov (@T[0],&DWP(0,$idx)); # load plaintext + &mov (@T[1],&DWP(4,$idx)); + &mov (@T[2],&DWP(8,$idx)); + &bswap (@T[0]); + &mov (@T[3],&DWP(12,$idx)); + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + + &call ("_x86_Camellia_encrypt"); + + &mov ("esp",$_esp); + &bswap (@T[0]); + &mov ($idx,&wparam(1)); # load ciphertext pointer + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + &mov (&DWP(0,$idx),@T[0]); # write ciphertext + &mov (&DWP(4,$idx),@T[1]); + &mov (&DWP(8,$idx),@T[2]); + &mov (&DWP(12,$idx),@T[3]); +&function_end("Camellia_encrypt"); +} + +&function_begin_B("_x86_Camellia_encrypt"); + &xor (@T[0],&DWP(0,$key)); # ^=key[0-3] + &xor (@T[1],&DWP(4,$key)); + &xor (@T[2],&DWP(8,$key)); + &xor (@T[3],&DWP(12,$key)); + &mov ($idx,&DWP(16,$key)); # prefetch key[4] + + &mov ($__s0,@T[0]); # save s[0-3] + &mov ($__s1,@T[1]); + &mov ($__s2,@T[2]); + &mov ($__s3,@T[3]); + +&set_label("loop",16); + for ($i=0;$i<6;$i++) { Camellia_Feistel($i,16,4); } + + &add ($key,16*4); + &cmp ($key,$__end); + &je (&label("done")); + + # @T[0-1] are preloaded, $idx is preloaded with key[0] + &and ($idx,@T[0]); + &mov (@T[3],$__s3); + &rotl ($idx,1); + &mov (@T[2],@T[3]); + &xor (@T[1],$idx); + &or (@T[2],&DWP(12,$key)); + &mov ($__s1,@T[1]); # s1^=LeftRotate(s0&key[0],1); + &xor (@T[2],$__s2); + + &mov ($idx,&DWP(4,$key)); + &mov ($__s2,@T[2]); # s2^=s3|key[3]; + &or ($idx,@T[1]); + &and (@T[2],&DWP(8,$key)); + &xor (@T[0],$idx); + &rotl (@T[2],1); + &mov ($__s0,@T[0]); # s0^=s1|key[1]; + &xor (@T[3],@T[2]); + &mov ($idx,&DWP(16,$key)); # prefetch key[4] + &mov ($__s3,@T[3]); # s3^=LeftRotate(s2&key[2],1); + &jmp (&label("loop")); + +&set_label("done",8); + &mov (@T[2],@T[0]); # SwapHalf + &mov (@T[3],@T[1]); + &mov (@T[0],$__s2); + &mov (@T[1],$__s3); + &xor (@T[0],$idx); # $idx is preloaded with key[0] + &xor (@T[1],&DWP(4,$key)); + &xor (@T[2],&DWP(8,$key)); + &xor (@T[3],&DWP(12,$key)); + &ret (); +&function_end_B("_x86_Camellia_encrypt"); + +# void Camellia_DecryptBlock_Rounds( +# int grandRounds, +# const Byte ciphertext[], +# const KEY_TABLE_TYPE keyTable, +# Byte plaintext[]) +&function_begin("Camellia_DecryptBlock_Rounds"); + &mov ("eax",&wparam(0)); # load grandRounds + &mov ($idx,&wparam(1)); # load ciphertext pointer + &mov ($key,&wparam(2)); # load key schedule pointer + + &mov ("ebx","esp"); + &sub ("esp",7*4); # place for s[0-3],keyEnd,esp and ra + &and ("esp",-64); + + # place stack frame just "above mod 1024" the key schedule + # this ensures that cache associativity of 2 suffices + &lea ("ecx",&DWP(-64-63,$key)); + &sub ("ecx","esp"); + &neg ("ecx"); + &and ("ecx",0x3C0); # modulo 1024, but aligned to cache-line + &sub ("esp","ecx"); + &add ("esp",4); # 4 is reserved for callee's return address + + &shl ("eax",6); + &mov (&DWP(4*4,"esp"),$key); # save keyStart + &lea ($key,&DWP(0,$key,"eax")); + &mov (&DWP(5*4,"esp"),"ebx");# save %esp + + &call (&label("pic_point")); + &set_label("pic_point"); + &blindpop($Tbl); + &lea ($Tbl,&DWP(&label("Camellia_SBOX")."-".&label("pic_point"),$Tbl)); + + &mov (@T[0],&DWP(0,$idx)); # load ciphertext + &mov (@T[1],&DWP(4,$idx)); + &mov (@T[2],&DWP(8,$idx)); + &bswap (@T[0]); + &mov (@T[3],&DWP(12,$idx)); + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + + &call ("_x86_Camellia_decrypt"); + + &mov ("esp",&DWP(5*4,"esp")); + &bswap (@T[0]); + &mov ($idx,&wparam(3)); # load plaintext pointer + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + &mov (&DWP(0,$idx),@T[0]); # write plaintext + &mov (&DWP(4,$idx),@T[1]); + &mov (&DWP(8,$idx),@T[2]); + &mov (&DWP(12,$idx),@T[3]); +&function_end("Camellia_DecryptBlock_Rounds"); +# V1.x API +&function_begin_B("Camellia_DecryptBlock"); + &mov ("eax",128); + &sub ("eax",&wparam(0)); # load keyBitLength + &mov ("eax",3); + &adc ("eax",0); # keyBitLength==128?3:4 + &mov (&wparam(0),"eax"); + &jmp (&label("Camellia_DecryptBlock_Rounds")); +&function_end_B("Camellia_DecryptBlock"); + +if ($OPENSSL) { +# void Camellia_decrypt( +# const unsigned char *in, +# unsigned char *out, +# const CAMELLIA_KEY *key) +&function_begin("Camellia_decrypt"); + &mov ($idx,&wparam(0)); # load ciphertext pointer + &mov ($key,&wparam(2)); # load key schedule pointer + + &mov ("ebx","esp"); + &sub ("esp",7*4); # place for s[0-3],keyEnd,esp and ra + &and ("esp",-64); + &mov ("eax",&DWP(272,$key)); # load grandRounds counter + + # place stack frame just "above mod 1024" the key schedule + # this ensures that cache associativity of 2 suffices + &lea ("ecx",&DWP(-64-63,$key)); + &sub ("ecx","esp"); + &neg ("ecx"); + &and ("ecx",0x3C0); # modulo 1024, but aligned to cache-line + &sub ("esp","ecx"); + &add ("esp",4); # 4 is reserved for callee's return address + + &shl ("eax",6); + &mov (&DWP(4*4,"esp"),$key); # save keyStart + &lea ($key,&DWP(0,$key,"eax")); + &mov (&DWP(5*4,"esp"),"ebx");# save %esp + + &call (&label("pic_point")); + &set_label("pic_point"); + &blindpop($Tbl); + &lea ($Tbl,&DWP(&label("Camellia_SBOX")."-".&label("pic_point"),$Tbl)); + + &mov (@T[0],&DWP(0,$idx)); # load ciphertext + &mov (@T[1],&DWP(4,$idx)); + &mov (@T[2],&DWP(8,$idx)); + &bswap (@T[0]); + &mov (@T[3],&DWP(12,$idx)); + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + + &call ("_x86_Camellia_decrypt"); + + &mov ("esp",&DWP(5*4,"esp")); + &bswap (@T[0]); + &mov ($idx,&wparam(1)); # load plaintext pointer + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + &mov (&DWP(0,$idx),@T[0]); # write plaintext + &mov (&DWP(4,$idx),@T[1]); + &mov (&DWP(8,$idx),@T[2]); + &mov (&DWP(12,$idx),@T[3]); +&function_end("Camellia_decrypt"); +} + +&function_begin_B("_x86_Camellia_decrypt"); + &xor (@T[0],&DWP(0,$key)); # ^=key[0-3] + &xor (@T[1],&DWP(4,$key)); + &xor (@T[2],&DWP(8,$key)); + &xor (@T[3],&DWP(12,$key)); + &mov ($idx,&DWP(-8,$key)); # prefetch key[-2] + + &mov ($__s0,@T[0]); # save s[0-3] + &mov ($__s1,@T[1]); + &mov ($__s2,@T[2]); + &mov ($__s3,@T[3]); + +&set_label("loop",16); + for ($i=0;$i<6;$i++) { Camellia_Feistel($i,-8,4); } + + &sub ($key,16*4); + &cmp ($key,$__end); + &je (&label("done")); + + # @T[0-1] are preloaded, $idx is preloaded with key[2] + &and ($idx,@T[0]); + &mov (@T[3],$__s3); + &rotl ($idx,1); + &mov (@T[2],@T[3]); + &xor (@T[1],$idx); + &or (@T[2],&DWP(4,$key)); + &mov ($__s1,@T[1]); # s1^=LeftRotate(s0&key[0],1); + &xor (@T[2],$__s2); + + &mov ($idx,&DWP(12,$key)); + &mov ($__s2,@T[2]); # s2^=s3|key[3]; + &or ($idx,@T[1]); + &and (@T[2],&DWP(0,$key)); + &xor (@T[0],$idx); + &rotl (@T[2],1); + &mov ($__s0,@T[0]); # s0^=s1|key[1]; + &xor (@T[3],@T[2]); + &mov ($idx,&DWP(-8,$key)); # prefetch key[4] + &mov ($__s3,@T[3]); # s3^=LeftRotate(s2&key[2],1); + &jmp (&label("loop")); + +&set_label("done",8); + &mov (@T[2],@T[0]); # SwapHalf + &mov (@T[3],@T[1]); + &mov (@T[0],$__s2); + &mov (@T[1],$__s3); + &xor (@T[2],$idx); # $idx is preloaded with key[2] + &xor (@T[3],&DWP(12,$key)); + &xor (@T[0],&DWP(0,$key)); + &xor (@T[1],&DWP(4,$key)); + &ret (); +&function_end_B("_x86_Camellia_decrypt"); + +# shld is very slow on Intel P4 family. Even on AMD it limits +# instruction decode rate [because it's VectorPath] and consequently +# performance. PIII, PM and Core[2] seem to be the only ones which +# execute this code ~7% faster... +sub __rotl128 { + my ($i0,$i1,$i2,$i3,$rot,$rnd,@T)=@_; + + $rnd *= 2; + if ($rot) { + &mov ($idx,$i0); + &shld ($i0,$i1,$rot); + &shld ($i1,$i2,$rot); + &shld ($i2,$i3,$rot); + &shld ($i3,$idx,$rot); + } + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i0 eq @T[0]); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i1 eq @T[0]); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i2 eq @T[0]); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i3 eq @T[0]); +} + +# ... Implementing 128-bit rotate without shld gives >3x performance +# improvement on P4, only ~7% degradation on other Intel CPUs and +# not worse performance on AMD. This is therefore preferred. +sub _rotl128 { + my ($i0,$i1,$i2,$i3,$rot,$rnd,@T)=@_; + + $rnd *= 2; + if ($rot) { + &mov ($Tbl,$i0); + &shl ($i0,$rot); + &mov ($idx,$i1); + &shr ($idx,32-$rot); + &shl ($i1,$rot); + &or ($i0,$idx); + &mov ($idx,$i2); + &shl ($i2,$rot); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i0 eq @T[0]); + &shr ($idx,32-$rot); + &or ($i1,$idx); + &shr ($Tbl,32-$rot); + &mov ($idx,$i3); + &shr ($idx,32-$rot); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i1 eq @T[0]); + &shl ($i3,$rot); + &or ($i2,$idx); + &or ($i3,$Tbl); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i2 eq @T[0]); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i3 eq @T[0]); + } else { + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i0 eq @T[0]); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i1 eq @T[0]); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i2 eq @T[0]); + &mov (&DWP(-128+4*$rnd++,$key),shift(@T)) if ($i3 eq @T[0]); + } +} + +sub _saveround { +my ($rnd,$key,@T)=@_; +my $bias=int(@T[0])?shift(@T):0; + + &mov (&DWP($bias+$rnd*8+0,$key),@T[0]); + &mov (&DWP($bias+$rnd*8+4,$key),@T[1]) if ($#T>=1); + &mov (&DWP($bias+$rnd*8+8,$key),@T[2]) if ($#T>=2); + &mov (&DWP($bias+$rnd*8+12,$key),@T[3]) if ($#T>=3); +} + +sub _loadround { +my ($rnd,$key,@T)=@_; +my $bias=int(@T[0])?shift(@T):0; + + &mov (@T[0],&DWP($bias+$rnd*8+0,$key)); + &mov (@T[1],&DWP($bias+$rnd*8+4,$key)) if ($#T>=1); + &mov (@T[2],&DWP($bias+$rnd*8+8,$key)) if ($#T>=2); + &mov (@T[3],&DWP($bias+$rnd*8+12,$key)) if ($#T>=3); +} + +# void Camellia_Ekeygen( +# const int keyBitLength, +# const Byte *rawKey, +# KEY_TABLE_TYPE keyTable) +&function_begin("Camellia_Ekeygen"); +{ my $step=0; + + &stack_push(4); # place for s[0-3] + + &mov ($Tbl,&wparam(0)); # load arguments + &mov ($idx,&wparam(1)); + &mov ($key,&wparam(2)); + + &mov (@T[0],&DWP(0,$idx)); # load 0-127 bits + &mov (@T[1],&DWP(4,$idx)); + &mov (@T[2],&DWP(8,$idx)); + &mov (@T[3],&DWP(12,$idx)); + + &bswap (@T[0]); + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + + &_saveround (0,$key,@T); # KL<<<0 + + &cmp ($Tbl,128); + &je (&label("1st128")); + + &mov (@T[0],&DWP(16,$idx)); # load 128-191 bits + &mov (@T[1],&DWP(20,$idx)); + &cmp ($Tbl,192); + &je (&label("1st192")); + &mov (@T[2],&DWP(24,$idx)); # load 192-255 bits + &mov (@T[3],&DWP(28,$idx)); + &jmp (&label("1st256")); +&set_label("1st192",4); + &mov (@T[2],@T[0]); + &mov (@T[3],@T[1]); + ¬ (@T[2]); + ¬ (@T[3]); +&set_label("1st256",4); + &bswap (@T[0]); + &bswap (@T[1]); + &bswap (@T[2]); + &bswap (@T[3]); + + &_saveround (4,$key,@T); # temporary storage for KR! + + &xor (@T[0],&DWP(0*8+0,$key)); # KR^KL + &xor (@T[1],&DWP(0*8+4,$key)); + &xor (@T[2],&DWP(1*8+0,$key)); + &xor (@T[3],&DWP(1*8+4,$key)); + +&set_label("1st128",4); + &call (&label("pic_point")); + &set_label("pic_point"); + &blindpop($Tbl); + &lea ($Tbl,&DWP(&label("Camellia_SBOX")."-".&label("pic_point"),$Tbl)); + &lea ($key,&DWP(&label("Camellia_SIGMA")."-".&label("Camellia_SBOX"),$Tbl)); + + &mov ($idx,&DWP($step*8,$key)); # prefetch SIGMA[0] + &mov (&swtmp(0),@T[0]); # save s[0-3] + &mov (&swtmp(1),@T[1]); + &mov (&swtmp(2),@T[2]); + &mov (&swtmp(3),@T[3]); + &Camellia_Feistel($step++); + &Camellia_Feistel($step++); + &mov (@T[2],&swtmp(2)); + &mov (@T[3],&swtmp(3)); + + &mov ($idx,&wparam(2)); + &xor (@T[0],&DWP(0*8+0,$idx)); # ^KL + &xor (@T[1],&DWP(0*8+4,$idx)); + &xor (@T[2],&DWP(1*8+0,$idx)); + &xor (@T[3],&DWP(1*8+4,$idx)); + + &mov ($idx,&DWP($step*8,$key)); # prefetch SIGMA[4] + &mov (&swtmp(0),@T[0]); # save s[0-3] + &mov (&swtmp(1),@T[1]); + &mov (&swtmp(2),@T[2]); + &mov (&swtmp(3),@T[3]); + &Camellia_Feistel($step++); + &Camellia_Feistel($step++); + &mov (@T[2],&swtmp(2)); + &mov (@T[3],&swtmp(3)); + + &mov ($idx,&wparam(0)); + &cmp ($idx,128); + &jne (&label("2nd256")); + + &mov ($key,&wparam(2)); + &lea ($key,&DWP(128,$key)); # size optimization + + ####### process KA + &_saveround (2,$key,-128,@T); # KA<<<0 + &_rotl128 (@T,15,6,@T); # KA<<<15 + &_rotl128 (@T,15,8,@T); # KA<<<(15+15=30) + &_rotl128 (@T,15,12,@T[0],@T[1]); # KA<<<(30+15=45) + &_rotl128 (@T,15,14,@T); # KA<<<(45+15=60) + push (@T,shift(@T)); # rotl128(@T,32); + &_rotl128 (@T,2,20,@T); # KA<<<(60+32+2=94) + &_rotl128 (@T,17,24,@T); # KA<<<(94+17=111) + + ####### process KL + &_loadround (0,$key,-128,@T); # load KL + &_rotl128 (@T,15,4,@T); # KL<<<15 + &_rotl128 (@T,30,10,@T); # KL<<<(15+30=45) + &_rotl128 (@T,15,13,@T[2],@T[3]); # KL<<<(45+15=60) + &_rotl128 (@T,17,16,@T); # KL<<<(60+17=77) + &_rotl128 (@T,17,18,@T); # KL<<<(77+17=94) + &_rotl128 (@T,17,22,@T); # KL<<<(94+17=111) + + while (@T[0] ne "eax") # restore order + { unshift (@T,pop(@T)); } + + &mov ("eax",3); # 3 grandRounds + &jmp (&label("done")); + +&set_label("2nd256",16); + &mov ($idx,&wparam(2)); + &_saveround (6,$idx,@T); # temporary storage for KA! + + &xor (@T[0],&DWP(4*8+0,$idx)); # KA^KR + &xor (@T[1],&DWP(4*8+4,$idx)); + &xor (@T[2],&DWP(5*8+0,$idx)); + &xor (@T[3],&DWP(5*8+4,$idx)); + + &mov ($idx,&DWP($step*8,$key)); # prefetch SIGMA[8] + &mov (&swtmp(0),@T[0]); # save s[0-3] + &mov (&swtmp(1),@T[1]); + &mov (&swtmp(2),@T[2]); + &mov (&swtmp(3),@T[3]); + &Camellia_Feistel($step++); + &Camellia_Feistel($step++); + &mov (@T[2],&swtmp(2)); + &mov (@T[3],&swtmp(3)); + + &mov ($key,&wparam(2)); + &lea ($key,&DWP(128,$key)); # size optimization + + ####### process KB + &_saveround (2,$key,-128,@T); # KB<<<0 + &_rotl128 (@T,30,10,@T); # KB<<<30 + &_rotl128 (@T,30,20,@T); # KB<<<(30+30=60) + push (@T,shift(@T)); # rotl128(@T,32); + &_rotl128 (@T,19,32,@T); # KB<<<(60+32+19=111) + + ####### process KR + &_loadround (4,$key,-128,@T); # load KR + &_rotl128 (@T,15,4,@T); # KR<<<15 + &_rotl128 (@T,15,8,@T); # KR<<<(15+15=30) + &_rotl128 (@T,30,18,@T); # KR<<<(30+30=60) + push (@T,shift(@T)); # rotl128(@T,32); + &_rotl128 (@T,2,26,@T); # KR<<<(60+32+2=94) + + ####### process KA + &_loadround (6,$key,-128,@T); # load KA + &_rotl128 (@T,15,6,@T); # KA<<<15 + &_rotl128 (@T,30,14,@T); # KA<<<(15+30=45) + push (@T,shift(@T)); # rotl128(@T,32); + &_rotl128 (@T,0,24,@T); # KA<<<(45+32+0=77) + &_rotl128 (@T,17,28,@T); # KA<<<(77+17=94) + + ####### process KL + &_loadround (0,$key,-128,@T); # load KL + push (@T,shift(@T)); # rotl128(@T,32); + &_rotl128 (@T,13,12,@T); # KL<<<(32+13=45) + &_rotl128 (@T,15,16,@T); # KL<<<(45+15=60) + &_rotl128 (@T,17,22,@T); # KL<<<(60+17=77) + push (@T,shift(@T)); # rotl128(@T,32); + &_rotl128 (@T,2,30,@T); # KL<<<(77+32+2=111) + + while (@T[0] ne "eax") # restore order + { unshift (@T,pop(@T)); } + + &mov ("eax",4); # 4 grandRounds +&set_label("done"); + &lea ("edx",&DWP(272-128,$key)); # end of key schedule + &stack_pop(4); +} +&function_end("Camellia_Ekeygen"); + +if ($OPENSSL) { +# int Camellia_set_key ( +# const unsigned char *userKey, +# int bits, +# CAMELLIA_KEY *key) +&function_begin_B("Camellia_set_key"); + &push ("ebx"); + &mov ("ecx",&wparam(0)); # pull arguments + &mov ("ebx",&wparam(1)); + &mov ("edx",&wparam(2)); + + &mov ("eax",-1); + &test ("ecx","ecx"); + &jz (&label("done")); # userKey==NULL? + &test ("edx","edx"); + &jz (&label("done")); # key==NULL? + + &mov ("eax",-2); + &cmp ("ebx",256); + &je (&label("arg_ok")); # bits==256? + &cmp ("ebx",192); + &je (&label("arg_ok")); # bits==192? + &cmp ("ebx",128); + &jne (&label("done")); # bits!=128? +&set_label("arg_ok",4); + + &push ("edx"); # push arguments + &push ("ecx"); + &push ("ebx"); + &call ("Camellia_Ekeygen"); + &stack_pop(3); + + # eax holds grandRounds and edx points at where to put it + &mov (&DWP(0,"edx"),"eax"); + &xor ("eax","eax"); +&set_label("done",4); + &pop ("ebx"); + &ret (); +&function_end_B("Camellia_set_key"); +} + +@SBOX=( +112,130, 44,236,179, 39,192,229,228,133, 87, 53,234, 12,174, 65, + 35,239,107,147, 69, 25,165, 33,237, 14, 79, 78, 29,101,146,189, +134,184,175,143,124,235, 31,206, 62, 48,220, 95, 94,197, 11, 26, +166,225, 57,202,213, 71, 93, 61,217, 1, 90,214, 81, 86,108, 77, +139, 13,154,102,251,204,176, 45,116, 18, 43, 32,240,177,132,153, +223, 76,203,194, 52,126,118, 5,109,183,169, 49,209, 23, 4,215, + 20, 88, 58, 97,222, 27, 17, 28, 50, 15,156, 22, 83, 24,242, 34, +254, 68,207,178,195,181,122,145, 36, 8,232,168, 96,252,105, 80, +170,208,160,125,161,137, 98,151, 84, 91, 30,149,224,255,100,210, + 16,196, 0, 72,163,247,117,219,138, 3,230,218, 9, 63,221,148, +135, 92,131, 2,205, 74,144, 51,115,103,246,243,157,127,191,226, + 82,155,216, 38,200, 55,198, 59,129,150,111, 75, 19,190, 99, 46, +233,121,167,140,159,110,188,142, 41,245,249,182, 47,253,180, 89, +120,152, 6,106,231, 70,113,186,212, 37,171, 66,136,162,141,250, +114, 7,185, 85,248,238,172, 10, 54, 73, 42,104, 60, 56,241,164, + 64, 40,211,123,187,201, 67,193, 21,227,173,244,119,199,128,158); + +sub S1110 { my $i=shift; $i=@SBOX[$i]; return $i<<24|$i<<16|$i<<8; } +sub S4404 { my $i=shift; $i=($i<<1|$i>>7)&0xff; $i=@SBOX[$i]; return $i<<24|$i<<16|$i; } +sub S0222 { my $i=shift; $i=@SBOX[$i]; $i=($i<<1|$i>>7)&0xff; return $i<<16|$i<<8|$i; } +sub S3033 { my $i=shift; $i=@SBOX[$i]; $i=($i>>1|$i<<7)&0xff; return $i<<24|$i<<8|$i; } + +&set_label("Camellia_SIGMA",64); +&data_word( + 0xa09e667f, 0x3bcc908b, 0xb67ae858, 0x4caa73b2, + 0xc6ef372f, 0xe94f82be, 0x54ff53a5, 0xf1d36f1c, + 0x10e527fa, 0xde682d1d, 0xb05688c2, 0xb3e6c1fd, + 0, 0, 0, 0); +&set_label("Camellia_SBOX",64); +# tables are interleaved, remember? +for ($i=0;$i<256;$i++) { &data_word(&S1110($i),&S4404($i)); } +for ($i=0;$i<256;$i++) { &data_word(&S0222($i),&S3033($i)); } + +# void Camellia_cbc_encrypt (const void char *inp, unsigned char *out, +# size_t length, const CAMELLIA_KEY *key, +# unsigned char *ivp,const int enc); +{ +# stack frame layout +# -4(%esp) # return address 0(%esp) +# 0(%esp) # s0 4(%esp) +# 4(%esp) # s1 8(%esp) +# 8(%esp) # s2 12(%esp) +# 12(%esp) # s3 16(%esp) +# 16(%esp) # end of key schedule 20(%esp) +# 20(%esp) # %esp backup +my $_inp=&DWP(24,"esp"); #copy of wparam(0) +my $_out=&DWP(28,"esp"); #copy of wparam(1) +my $_len=&DWP(32,"esp"); #copy of wparam(2) +my $_key=&DWP(36,"esp"); #copy of wparam(3) +my $_ivp=&DWP(40,"esp"); #copy of wparam(4) +my $ivec=&DWP(44,"esp"); #ivec[16] +my $_tmp=&DWP(44,"esp"); #volatile variable [yes, aliases with ivec] +my ($s0,$s1,$s2,$s3) = @T; + +&function_begin("Camellia_cbc_encrypt"); + &mov ($s2 eq "ecx"? $s2 : "",&wparam(2)); # load len + &cmp ($s2,0); + &je (&label("enc_out")); + + &pushf (); + &cld (); + + &mov ($s0,&wparam(0)); # load inp + &mov ($s1,&wparam(1)); # load out + #&mov ($s2,&wparam(2)); # load len + &mov ($s3,&wparam(3)); # load key + &mov ($Tbl,&wparam(4)); # load ivp + + # allocate aligned stack frame... + &lea ($idx,&DWP(-64,"esp")); + &and ($idx,-64); + + # place stack frame just "above mod 1024" the key schedule + # this ensures that cache associativity of 2 suffices + &lea ($key,&DWP(-64-63,$s3)); + &sub ($key,$idx); + &neg ($key); + &and ($key,0x3C0); # modulo 1024, but aligned to cache-line + &sub ($idx,$key); + + &mov ($key,&wparam(5)); # load enc + + &exch ("esp",$idx); + &add ("esp",4); # reserve for return address! + &mov ($_esp,$idx); # save %esp + + &mov ($_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,$Tbl); # save copy of ivp + + &call (&label("pic_point")); # make it PIC! + &set_label("pic_point"); + &blindpop($Tbl); + &lea ($Tbl,&DWP(&label("Camellia_SBOX")."-".&label("pic_point"),$Tbl)); + + &mov ($idx,32); + &set_label("prefetch_sbox",4); + &mov ($s0,&DWP(0,$Tbl)); + &mov ($s1,&DWP(32,$Tbl)); + &mov ($s2,&DWP(64,$Tbl)); + &mov ($s3,&DWP(96,$Tbl)); + &lea ($Tbl,&DWP(128,$Tbl)); + &dec ($idx); + &jnz (&label("prefetch_sbox")); + &mov ($s0,$_key); + &sub ($Tbl,4096); + &mov ($idx,$_inp); + &mov ($s3,&DWP(272,$s0)); # load grandRounds + + &cmp ($key,0); + &je (&label("DECRYPT")); + + &mov ($s2,$_len); + &mov ($key,$_ivp); + &shl ($s3,6); + &lea ($s3,&DWP(0,$s0,$s3)); + &mov ($_end,$s3); + + &test ($s2,0xFFFFFFF0); + &jz (&label("enc_tail")); # short input... + + &mov ($s0,&DWP(0,$key)); # load iv + &mov ($s1,&DWP(4,$key)); + + &set_label("enc_loop",4); + &mov ($s2,&DWP(8,$key)); + &mov ($s3,&DWP(12,$key)); + + &xor ($s0,&DWP(0,$idx)); # xor input data + &xor ($s1,&DWP(4,$idx)); + &xor ($s2,&DWP(8,$idx)); + &bswap ($s0); + &xor ($s3,&DWP(12,$idx)); + &bswap ($s1); + &mov ($key,$_key); # load key + &bswap ($s2); + &bswap ($s3); + + &call ("_x86_Camellia_encrypt"); + + &mov ($idx,$_inp); # load inp + &mov ($key,$_out); # load out + + &bswap ($s0); + &bswap ($s1); + &bswap ($s2); + &mov (&DWP(0,$key),$s0); # save output data + &bswap ($s3); + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ($s2,$_len); # load len + + &lea ($idx,&DWP(16,$idx)); + &mov ($_inp,$idx); # save inp + + &lea ($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 ($idx,$_ivp); # load ivp + &mov ($s2,&DWP(8,$key)); # restore last dwords + &mov ($s3,&DWP(12,$key)); + &mov (&DWP(0,$idx),$s0); # save ivec + &mov (&DWP(4,$idx),$s1); + &mov (&DWP(8,$idx),$s2); + &mov (&DWP(12,$idx),$s3); + + &mov ("esp",$_esp); + &popf (); + &set_label("enc_out"); + &function_end_A(); + &pushf (); # kludge, never executed + + &set_label("enc_tail",4); + &mov ($s0,$key eq "edi" ? $key : ""); + &mov ($key,$_out); # load out + &push ($s0); # push ivp + &mov ($s1,16); + &sub ($s1,$s2); + &cmp ($key,$idx); # compare with inp + &je (&label("enc_in_place")); + &align (4); + &data_word(0xA4F3F689); # rep movsb # copy input + &jmp (&label("enc_skip_in_place")); + &set_label("enc_in_place"); + &lea ($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 ($key); # pop ivp + + &mov ($idx,$_out); # output as input + &mov ($s0,&DWP(0,$key)); + &mov ($s1,&DWP(4,$key)); + &mov ($_len,16); # len=16 + &jmp (&label("enc_loop")); # one more spin... + +#----------------------------- DECRYPT -----------------------------# +&set_label("DECRYPT",16); + &shl ($s3,6); + &lea ($s3,&DWP(0,$s0,$s3)); + &mov ($_end,$s0); + &mov ($_key,$s3); + + &cmp ($idx,$_out); + &je (&label("dec_in_place")); # in-place processing... + + &mov ($key,$_ivp); # load ivp + &mov ($_tmp,$key); + + &set_label("dec_loop",4); + &mov ($s0,&DWP(0,$idx)); # read input + &mov ($s1,&DWP(4,$idx)); + &mov ($s2,&DWP(8,$idx)); + &bswap ($s0); + &mov ($s3,&DWP(12,$idx)); + &bswap ($s1); + &mov ($key,$_key); # load key + &bswap ($s2); + &bswap ($s3); + + &call ("_x86_Camellia_decrypt"); + + &mov ($key,$_tmp); # load ivp + &mov ($idx,$_len); # load len + + &bswap ($s0); + &bswap ($s1); + &bswap ($s2); + &xor ($s0,&DWP(0,$key)); # xor iv + &bswap ($s3); + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &sub ($idx,16); + &jc (&label("dec_partial")); + &mov ($_len,$idx); # save len + &mov ($idx,$_inp); # load inp + &mov ($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,$idx); # save ivp + &lea ($idx,&DWP(16,$idx)); + &mov ($_inp,$idx); # save inp + + &lea ($key,&DWP(16,$key)); + &mov ($_out,$key); # save out + + &jnz (&label("dec_loop")); + &mov ($key,$_tmp); # load temp ivp + &set_label("dec_end"); + &mov ($idx,$_ivp); # load user ivp + &mov ($s0,&DWP(0,$key)); # load iv + &mov ($s1,&DWP(4,$key)); + &mov ($s2,&DWP(8,$key)); + &mov ($s3,&DWP(12,$key)); + &mov (&DWP(0,$idx),$s0); # copy back to user + &mov (&DWP(4,$idx),$s1); + &mov (&DWP(8,$idx),$s2); + &mov (&DWP(12,$idx),$s3); + &jmp (&label("dec_out")); + + &set_label("dec_partial",4); + &lea ($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" ? $s2 : "",&DWP(16,$idx)); + &mov ($idx eq "esi" ? $idx : "",$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")); + + &set_label("dec_in_place",4); + &set_label("dec_in_place_loop"); + &lea ($key,$ivec); + &mov ($s0,&DWP(0,$idx)); # read input + &mov ($s1,&DWP(4,$idx)); + &mov ($s2,&DWP(8,$idx)); + &mov ($s3,&DWP(12,$idx)); + + &mov (&DWP(0,$key),$s0); # copy to temp + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &bswap ($s0); + &mov (&DWP(12,$key),$s3); + &bswap ($s1); + &mov ($key,$_key); # load key + &bswap ($s2); + &bswap ($s3); + + &call ("_x86_Camellia_decrypt"); + + &mov ($key,$_ivp); # load ivp + &mov ($idx,$_out); # load out + + &bswap ($s0); + &bswap ($s1); + &bswap ($s2); + &xor ($s0,&DWP(0,$key)); # xor iv + &bswap ($s3); + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &mov (&DWP(0,$idx),$s0); # write output + &mov (&DWP(4,$idx),$s1); + &mov (&DWP(8,$idx),$s2); + &mov (&DWP(12,$idx),$s3); + + &lea ($idx,&DWP(16,$idx)); + &mov ($_out,$idx); # save out + + &lea ($idx,$ivec); + &mov ($s0,&DWP(0,$idx)); # read temp + &mov ($s1,&DWP(4,$idx)); + &mov ($s2,&DWP(8,$idx)); + &mov ($s3,&DWP(12,$idx)); + + &mov (&DWP(0,$key),$s0); # copy iv + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ($idx,$_inp); # load inp + + &lea ($idx,&DWP(16,$idx)); + &mov ($_inp,$idx); # save inp + + &mov ($s2,$_len); # load len + &sub ($s2,16); + &jc (&label("dec_in_place_partial")); + &mov ($_len,$s2); # save len + &jnz (&label("dec_in_place_loop")); + &jmp (&label("dec_out")); + + &set_label("dec_in_place_partial",4); + # one can argue if this is actually required... + &mov ($key eq "edi" ? $key : "",$_out); + &lea ($idx eq "esi" ? $idx : "",$ivec); + &lea ($key,&DWP(0,$key,$s2)); + &lea ($idx,&DWP(16,$idx,$s2)); + &neg ($s2 eq "ecx" ? $s2 : ""); + &data_word(0xA4F3F689); # rep movsb # restore tail + + &set_label("dec_out",4); + &mov ("esp",$_esp); + &popf (); +&function_end("Camellia_cbc_encrypt"); +} + +&asciz("Camellia for x86 by <appro@openssl.org>"); + +&asm_finish(); |