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Diffstat (limited to 'ics-openvpn-stripped/main/openssl/crypto/aes/asm/bsaes-x86_64.pl')
-rw-r--r-- | ics-openvpn-stripped/main/openssl/crypto/aes/asm/bsaes-x86_64.pl | 3108 |
1 files changed, 3108 insertions, 0 deletions
diff --git a/ics-openvpn-stripped/main/openssl/crypto/aes/asm/bsaes-x86_64.pl b/ics-openvpn-stripped/main/openssl/crypto/aes/asm/bsaes-x86_64.pl new file mode 100644 index 00000000..41b90f08 --- /dev/null +++ b/ics-openvpn-stripped/main/openssl/crypto/aes/asm/bsaes-x86_64.pl @@ -0,0 +1,3108 @@ +#!/usr/bin/env perl + +################################################################### +### AES-128 [originally in CTR mode] ### +### bitsliced implementation for Intel Core 2 processors ### +### requires support of SSE extensions up to SSSE3 ### +### Author: Emilia Käsper and Peter Schwabe ### +### Date: 2009-03-19 ### +### Public domain ### +### ### +### See http://homes.esat.kuleuven.be/~ekasper/#software for ### +### further information. ### +################################################################### +# +# September 2011. +# +# Started as transliteration to "perlasm" the original code has +# undergone following changes: +# +# - code was made position-independent; +# - rounds were folded into a loop resulting in >5x size reduction +# from 12.5KB to 2.2KB; +# - above was possibile thanks to mixcolumns() modification that +# allowed to feed its output back to aesenc[last], this was +# achieved at cost of two additional inter-registers moves; +# - some instruction reordering and interleaving; +# - this module doesn't implement key setup subroutine, instead it +# relies on conversion of "conventional" key schedule as returned +# by AES_set_encrypt_key (see discussion below); +# - first and last round keys are treated differently, which allowed +# to skip one shiftrows(), reduce bit-sliced key schedule and +# speed-up conversion by 22%; +# - support for 192- and 256-bit keys was added; +# +# Resulting performance in CPU cycles spent to encrypt one byte out +# of 4096-byte buffer with 128-bit key is: +# +# Emilia's this(*) difference +# +# Core 2 9.30 8.69 +7% +# Nehalem(**) 7.63 6.98 +9% +# Atom 17.1 17.4 -2%(***) +# +# (*) Comparison is not completely fair, because "this" is ECB, +# i.e. no extra processing such as counter values calculation +# and xor-ing input as in Emilia's CTR implementation is +# performed. However, the CTR calculations stand for not more +# than 1% of total time, so comparison is *rather* fair. +# +# (**) Results were collected on Westmere, which is considered to +# be equivalent to Nehalem for this code. +# +# (***) Slowdown on Atom is rather strange per se, because original +# implementation has a number of 9+-bytes instructions, which +# are bad for Atom front-end, and which I eliminated completely. +# In attempt to address deterioration sbox() was tested in FP +# SIMD "domain" (movaps instead of movdqa, xorps instead of +# pxor, etc.). While it resulted in nominal 4% improvement on +# Atom, it hurted Westmere by more than 2x factor. +# +# As for key schedule conversion subroutine. Interface to OpenSSL +# relies on per-invocation on-the-fly conversion. This naturally +# has impact on performance, especially for short inputs. Conversion +# time in CPU cycles and its ratio to CPU cycles spent in 8x block +# function is: +# +# conversion conversion/8x block +# Core 2 240 0.22 +# Nehalem 180 0.20 +# Atom 430 0.19 +# +# The ratio values mean that 128-byte blocks will be processed +# 16-18% slower, 256-byte blocks - 9-10%, 384-byte blocks - 6-7%, +# etc. Then keep in mind that input sizes not divisible by 128 are +# *effectively* slower, especially shortest ones, e.g. consecutive +# 144-byte blocks are processed 44% slower than one would expect, +# 272 - 29%, 400 - 22%, etc. Yet, despite all these "shortcomings" +# it's still faster than ["hyper-threading-safe" code path in] +# aes-x86_64.pl on all lengths above 64 bytes... +# +# October 2011. +# +# Add decryption procedure. Performance in CPU cycles spent to decrypt +# one byte out of 4096-byte buffer with 128-bit key is: +# +# Core 2 9.83 +# Nehalem 7.74 +# Atom 19.0 +# +# November 2011. +# +# Add bsaes_xts_[en|de]crypt. Less-than-80-bytes-block performance is +# suboptimal, but XTS is meant to be used with larger blocks... +# +# <appro@openssl.org> + +$flavour = shift; +$output = shift; +if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } + +$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or +die "can't locate x86_64-xlate.pl"; + +open OUT,"| \"$^X\" $xlate $flavour $output"; +*STDOUT=*OUT; + +my ($inp,$out,$len,$key,$ivp)=("%rdi","%rsi","%rdx","%rcx"); +my @XMM=map("%xmm$_",(15,0..14)); # best on Atom, +10% over (0..15) +my $ecb=0; # suppress unreferenced ECB subroutines, spare some space... + +{ +my ($key,$rounds,$const)=("%rax","%r10d","%r11"); + +sub Sbox { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b0, b1, b4, b6, b3, b7, b2, b5] < msb +my @b=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; + &InBasisChange (@b); + &Inv_GF256 (@b[6,5,0,3,7,1,4,2],@t,@s); + &OutBasisChange (@b[7,1,4,2,6,5,0,3]); +} + +sub InBasisChange { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b6, b5, b0, b3, b7, b1, b4, b2] < msb +my @b=@_[0..7]; +$code.=<<___; + pxor @b[6], @b[5] + pxor @b[1], @b[2] + pxor @b[0], @b[3] + pxor @b[2], @b[6] + pxor @b[0], @b[5] + + pxor @b[3], @b[6] + pxor @b[7], @b[3] + pxor @b[5], @b[7] + pxor @b[4], @b[3] + pxor @b[5], @b[4] + pxor @b[1], @b[3] + + pxor @b[7], @b[2] + pxor @b[5], @b[1] +___ +} + +sub OutBasisChange { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b6, b1, b2, b4, b7, b0, b3, b5] < msb +my @b=@_[0..7]; +$code.=<<___; + pxor @b[6], @b[0] + pxor @b[4], @b[1] + pxor @b[0], @b[2] + pxor @b[6], @b[4] + pxor @b[1], @b[6] + + pxor @b[5], @b[1] + pxor @b[3], @b[5] + pxor @b[7], @b[3] + pxor @b[5], @b[7] + pxor @b[5], @b[2] + + pxor @b[7], @b[4] +___ +} + +sub InvSbox { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b0, b1, b6, b4, b2, b7, b3, b5] < msb +my @b=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; + &InvInBasisChange (@b); + &Inv_GF256 (@b[5,1,2,6,3,7,0,4],@t,@s); + &InvOutBasisChange (@b[3,7,0,4,5,1,2,6]); +} + +sub InvInBasisChange { # OutBasisChange in reverse +my @b=@_[5,1,2,6,3,7,0,4]; +$code.=<<___ + pxor @b[7], @b[4] + + pxor @b[5], @b[7] + pxor @b[5], @b[2] + pxor @b[7], @b[3] + pxor @b[3], @b[5] + pxor @b[5], @b[1] + + pxor @b[1], @b[6] + pxor @b[0], @b[2] + pxor @b[6], @b[4] + pxor @b[6], @b[0] + pxor @b[4], @b[1] +___ +} + +sub InvOutBasisChange { # InBasisChange in reverse +my @b=@_[2,5,7,3,6,1,0,4]; +$code.=<<___; + pxor @b[5], @b[1] + pxor @b[7], @b[2] + + pxor @b[1], @b[3] + pxor @b[5], @b[4] + pxor @b[5], @b[7] + pxor @b[4], @b[3] + pxor @b[0], @b[5] + pxor @b[7], @b[3] + pxor @b[2], @b[6] + pxor @b[1], @b[2] + pxor @b[3], @b[6] + + pxor @b[0], @b[3] + pxor @b[6], @b[5] +___ +} + +sub Mul_GF4 { +#;************************************************************* +#;* Mul_GF4: Input x0-x1,y0-y1 Output x0-x1 Temp t0 (8) * +#;************************************************************* +my ($x0,$x1,$y0,$y1,$t0)=@_; +$code.=<<___; + movdqa $y0, $t0 + pxor $y1, $t0 + pand $x0, $t0 + pxor $x1, $x0 + pand $y0, $x1 + pand $y1, $x0 + pxor $x1, $x0 + pxor $t0, $x1 +___ +} + +sub Mul_GF4_N { # not used, see next subroutine +# multiply and scale by N +my ($x0,$x1,$y0,$y1,$t0)=@_; +$code.=<<___; + movdqa $y0, $t0 + pxor $y1, $t0 + pand $x0, $t0 + pxor $x1, $x0 + pand $y0, $x1 + pand $y1, $x0 + pxor $x0, $x1 + pxor $t0, $x0 +___ +} + +sub Mul_GF4_N_GF4 { +# interleaved Mul_GF4_N and Mul_GF4 +my ($x0,$x1,$y0,$y1,$t0, + $x2,$x3,$y2,$y3,$t1)=@_; +$code.=<<___; + movdqa $y0, $t0 + movdqa $y2, $t1 + pxor $y1, $t0 + pxor $y3, $t1 + pand $x0, $t0 + pand $x2, $t1 + pxor $x1, $x0 + pxor $x3, $x2 + pand $y0, $x1 + pand $y2, $x3 + pand $y1, $x0 + pand $y3, $x2 + pxor $x0, $x1 + pxor $x3, $x2 + pxor $t0, $x0 + pxor $t1, $x3 +___ +} +sub Mul_GF16_2 { +my @x=@_[0..7]; +my @y=@_[8..11]; +my @t=@_[12..15]; +$code.=<<___; + movdqa @x[0], @t[0] + movdqa @x[1], @t[1] +___ + &Mul_GF4 (@x[0], @x[1], @y[0], @y[1], @t[2]); +$code.=<<___; + pxor @x[2], @t[0] + pxor @x[3], @t[1] + pxor @y[2], @y[0] + pxor @y[3], @y[1] +___ + Mul_GF4_N_GF4 (@t[0], @t[1], @y[0], @y[1], @t[3], + @x[2], @x[3], @y[2], @y[3], @t[2]); +$code.=<<___; + pxor @t[0], @x[0] + pxor @t[0], @x[2] + pxor @t[1], @x[1] + pxor @t[1], @x[3] + + movdqa @x[4], @t[0] + movdqa @x[5], @t[1] + pxor @x[6], @t[0] + pxor @x[7], @t[1] +___ + &Mul_GF4_N_GF4 (@t[0], @t[1], @y[0], @y[1], @t[3], + @x[6], @x[7], @y[2], @y[3], @t[2]); +$code.=<<___; + pxor @y[2], @y[0] + pxor @y[3], @y[1] +___ + &Mul_GF4 (@x[4], @x[5], @y[0], @y[1], @t[3]); +$code.=<<___; + pxor @t[0], @x[4] + pxor @t[0], @x[6] + pxor @t[1], @x[5] + pxor @t[1], @x[7] +___ +} +sub Inv_GF256 { +#;******************************************************************** +#;* Inv_GF256: Input x0-x7 Output x0-x7 Temp t0-t3,s0-s3 (144) * +#;******************************************************************** +my @x=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; +# direct optimizations from hardware +$code.=<<___; + movdqa @x[4], @t[3] + movdqa @x[5], @t[2] + movdqa @x[1], @t[1] + movdqa @x[7], @s[1] + movdqa @x[0], @s[0] + + pxor @x[6], @t[3] + pxor @x[7], @t[2] + pxor @x[3], @t[1] + movdqa @t[3], @s[2] + pxor @x[6], @s[1] + movdqa @t[2], @t[0] + pxor @x[2], @s[0] + movdqa @t[3], @s[3] + + por @t[1], @t[2] + por @s[0], @t[3] + pxor @t[0], @s[3] + pand @s[0], @s[2] + pxor @t[1], @s[0] + pand @t[1], @t[0] + pand @s[0], @s[3] + movdqa @x[3], @s[0] + pxor @x[2], @s[0] + pand @s[0], @s[1] + pxor @s[1], @t[3] + pxor @s[1], @t[2] + movdqa @x[4], @s[1] + movdqa @x[1], @s[0] + pxor @x[5], @s[1] + pxor @x[0], @s[0] + movdqa @s[1], @t[1] + pand @s[0], @s[1] + por @s[0], @t[1] + pxor @s[1], @t[0] + pxor @s[3], @t[3] + pxor @s[2], @t[2] + pxor @s[3], @t[1] + movdqa @x[7], @s[0] + pxor @s[2], @t[0] + movdqa @x[6], @s[1] + pxor @s[2], @t[1] + movdqa @x[5], @s[2] + pand @x[3], @s[0] + movdqa @x[4], @s[3] + pand @x[2], @s[1] + pand @x[1], @s[2] + por @x[0], @s[3] + pxor @s[0], @t[3] + pxor @s[1], @t[2] + pxor @s[2], @t[1] + pxor @s[3], @t[0] + + #Inv_GF16 \t0, \t1, \t2, \t3, \s0, \s1, \s2, \s3 + + # new smaller inversion + + movdqa @t[3], @s[0] + pand @t[1], @t[3] + pxor @t[2], @s[0] + + movdqa @t[0], @s[2] + movdqa @s[0], @s[3] + pxor @t[3], @s[2] + pand @s[2], @s[3] + + movdqa @t[1], @s[1] + pxor @t[2], @s[3] + pxor @t[0], @s[1] + + pxor @t[2], @t[3] + + pand @t[3], @s[1] + + movdqa @s[2], @t[2] + pxor @t[0], @s[1] + + pxor @s[1], @t[2] + pxor @s[1], @t[1] + + pand @t[0], @t[2] + + pxor @t[2], @s[2] + pxor @t[2], @t[1] + + pand @s[3], @s[2] + + pxor @s[0], @s[2] +___ +# output in s3, s2, s1, t1 + +# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \t2, \t3, \t0, \t1, \s0, \s1, \s2, \s3 + +# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \s3, \s2, \s1, \t1, \s0, \t0, \t2, \t3 + &Mul_GF16_2(@x,@s[3,2,1],@t[1],@s[0],@t[0,2,3]); + +### output msb > [x3,x2,x1,x0,x7,x6,x5,x4] < lsb +} + +# AES linear components + +sub ShiftRows { +my @x=@_[0..7]; +my $mask=pop; +$code.=<<___; + pxor 0x00($key),@x[0] + pxor 0x10($key),@x[1] + pshufb $mask,@x[0] + pxor 0x20($key),@x[2] + pshufb $mask,@x[1] + pxor 0x30($key),@x[3] + pshufb $mask,@x[2] + pxor 0x40($key),@x[4] + pshufb $mask,@x[3] + pxor 0x50($key),@x[5] + pshufb $mask,@x[4] + pxor 0x60($key),@x[6] + pshufb $mask,@x[5] + pxor 0x70($key),@x[7] + pshufb $mask,@x[6] + lea 0x80($key),$key + pshufb $mask,@x[7] +___ +} + +sub MixColumns { +# modified to emit output in order suitable for feeding back to aesenc[last] +my @x=@_[0..7]; +my @t=@_[8..15]; +my $inv=@_[16]; # optional +$code.=<<___; + pshufd \$0x93, @x[0], @t[0] # x0 <<< 32 + pshufd \$0x93, @x[1], @t[1] + pxor @t[0], @x[0] # x0 ^ (x0 <<< 32) + pshufd \$0x93, @x[2], @t[2] + pxor @t[1], @x[1] + pshufd \$0x93, @x[3], @t[3] + pxor @t[2], @x[2] + pshufd \$0x93, @x[4], @t[4] + pxor @t[3], @x[3] + pshufd \$0x93, @x[5], @t[5] + pxor @t[4], @x[4] + pshufd \$0x93, @x[6], @t[6] + pxor @t[5], @x[5] + pshufd \$0x93, @x[7], @t[7] + pxor @t[6], @x[6] + pxor @t[7], @x[7] + + pxor @x[0], @t[1] + pxor @x[7], @t[0] + pxor @x[7], @t[1] + pshufd \$0x4E, @x[0], @x[0] # (x0 ^ (x0 <<< 32)) <<< 64) + pxor @x[1], @t[2] + pshufd \$0x4E, @x[1], @x[1] + pxor @x[4], @t[5] + pxor @t[0], @x[0] + pxor @x[5], @t[6] + pxor @t[1], @x[1] + pxor @x[3], @t[4] + pshufd \$0x4E, @x[4], @t[0] + pxor @x[6], @t[7] + pshufd \$0x4E, @x[5], @t[1] + pxor @x[2], @t[3] + pshufd \$0x4E, @x[3], @x[4] + pxor @x[7], @t[3] + pshufd \$0x4E, @x[7], @x[5] + pxor @x[7], @t[4] + pshufd \$0x4E, @x[6], @x[3] + pxor @t[4], @t[0] + pshufd \$0x4E, @x[2], @x[6] + pxor @t[5], @t[1] +___ +$code.=<<___ if (!$inv); + pxor @t[3], @x[4] + pxor @t[7], @x[5] + pxor @t[6], @x[3] + movdqa @t[0], @x[2] + pxor @t[2], @x[6] + movdqa @t[1], @x[7] +___ +$code.=<<___ if ($inv); + pxor @x[4], @t[3] + pxor @t[7], @x[5] + pxor @x[3], @t[6] + movdqa @t[0], @x[3] + pxor @t[2], @x[6] + movdqa @t[6], @x[2] + movdqa @t[1], @x[7] + movdqa @x[6], @x[4] + movdqa @t[3], @x[6] +___ +} + +sub InvMixColumns_orig { +my @x=@_[0..7]; +my @t=@_[8..15]; + +$code.=<<___; + # multiplication by 0x0e + pshufd \$0x93, @x[7], @t[7] + movdqa @x[2], @t[2] + pxor @x[5], @x[7] # 7 5 + pxor @x[5], @x[2] # 2 5 + pshufd \$0x93, @x[0], @t[0] + movdqa @x[5], @t[5] + pxor @x[0], @x[5] # 5 0 [1] + pxor @x[1], @x[0] # 0 1 + pshufd \$0x93, @x[1], @t[1] + pxor @x[2], @x[1] # 1 25 + pxor @x[6], @x[0] # 01 6 [2] + pxor @x[3], @x[1] # 125 3 [4] + pshufd \$0x93, @x[3], @t[3] + pxor @x[0], @x[2] # 25 016 [3] + pxor @x[7], @x[3] # 3 75 + pxor @x[6], @x[7] # 75 6 [0] + pshufd \$0x93, @x[6], @t[6] + movdqa @x[4], @t[4] + pxor @x[4], @x[6] # 6 4 + pxor @x[3], @x[4] # 4 375 [6] + pxor @x[7], @x[3] # 375 756=36 + pxor @t[5], @x[6] # 64 5 [7] + pxor @t[2], @x[3] # 36 2 + pxor @t[4], @x[3] # 362 4 [5] + pshufd \$0x93, @t[5], @t[5] +___ + my @y = @x[7,5,0,2,1,3,4,6]; +$code.=<<___; + # multiplication by 0x0b + pxor @y[0], @y[1] + pxor @t[0], @y[0] + pxor @t[1], @y[1] + pshufd \$0x93, @t[2], @t[2] + pxor @t[5], @y[0] + pxor @t[6], @y[1] + pxor @t[7], @y[0] + pshufd \$0x93, @t[4], @t[4] + pxor @t[6], @t[7] # clobber t[7] + pxor @y[0], @y[1] + + pxor @t[0], @y[3] + pshufd \$0x93, @t[0], @t[0] + pxor @t[1], @y[2] + pxor @t[1], @y[4] + pxor @t[2], @y[2] + pshufd \$0x93, @t[1], @t[1] + pxor @t[2], @y[3] + pxor @t[2], @y[5] + pxor @t[7], @y[2] + pshufd \$0x93, @t[2], @t[2] + pxor @t[3], @y[3] + pxor @t[3], @y[6] + pxor @t[3], @y[4] + pshufd \$0x93, @t[3], @t[3] + pxor @t[4], @y[7] + pxor @t[4], @y[5] + pxor @t[7], @y[7] + pxor @t[5], @y[3] + pxor @t[4], @y[4] + pxor @t[5], @t[7] # clobber t[7] even more + + pxor @t[7], @y[5] + pshufd \$0x93, @t[4], @t[4] + pxor @t[7], @y[6] + pxor @t[7], @y[4] + + pxor @t[5], @t[7] + pshufd \$0x93, @t[5], @t[5] + pxor @t[6], @t[7] # restore t[7] + + # multiplication by 0x0d + pxor @y[7], @y[4] + pxor @t[4], @y[7] + pshufd \$0x93, @t[6], @t[6] + pxor @t[0], @y[2] + pxor @t[5], @y[7] + pxor @t[2], @y[2] + pshufd \$0x93, @t[7], @t[7] + + pxor @y[1], @y[3] + pxor @t[1], @y[1] + pxor @t[0], @y[0] + pxor @t[0], @y[3] + pxor @t[5], @y[1] + pxor @t[5], @y[0] + pxor @t[7], @y[1] + pshufd \$0x93, @t[0], @t[0] + pxor @t[6], @y[0] + pxor @y[1], @y[3] + pxor @t[1], @y[4] + pshufd \$0x93, @t[1], @t[1] + + pxor @t[7], @y[7] + pxor @t[2], @y[4] + pxor @t[2], @y[5] + pshufd \$0x93, @t[2], @t[2] + pxor @t[6], @y[2] + pxor @t[3], @t[6] # clobber t[6] + pxor @y[7], @y[4] + pxor @t[6], @y[3] + + pxor @t[6], @y[6] + pxor @t[5], @y[5] + pxor @t[4], @y[6] + pshufd \$0x93, @t[4], @t[4] + pxor @t[6], @y[5] + pxor @t[7], @y[6] + pxor @t[3], @t[6] # restore t[6] + + pshufd \$0x93, @t[5], @t[5] + pshufd \$0x93, @t[6], @t[6] + pshufd \$0x93, @t[7], @t[7] + pshufd \$0x93, @t[3], @t[3] + + # multiplication by 0x09 + pxor @y[1], @y[4] + pxor @y[1], @t[1] # t[1]=y[1] + pxor @t[5], @t[0] # clobber t[0] + pxor @t[5], @t[1] + pxor @t[0], @y[3] + pxor @y[0], @t[0] # t[0]=y[0] + pxor @t[6], @t[1] + pxor @t[7], @t[6] # clobber t[6] + pxor @t[1], @y[4] + pxor @t[4], @y[7] + pxor @y[4], @t[4] # t[4]=y[4] + pxor @t[3], @y[6] + pxor @y[3], @t[3] # t[3]=y[3] + pxor @t[2], @y[5] + pxor @y[2], @t[2] # t[2]=y[2] + pxor @t[7], @t[3] + pxor @y[5], @t[5] # t[5]=y[5] + pxor @t[6], @t[2] + pxor @t[6], @t[5] + pxor @y[6], @t[6] # t[6]=y[6] + pxor @y[7], @t[7] # t[7]=y[7] + + movdqa @t[0],@XMM[0] + movdqa @t[1],@XMM[1] + movdqa @t[2],@XMM[2] + movdqa @t[3],@XMM[3] + movdqa @t[4],@XMM[4] + movdqa @t[5],@XMM[5] + movdqa @t[6],@XMM[6] + movdqa @t[7],@XMM[7] +___ +} + +sub InvMixColumns { +my @x=@_[0..7]; +my @t=@_[8..15]; + +# Thanks to Jussi Kivilinna for providing pointer to +# +# | 0e 0b 0d 09 | | 02 03 01 01 | | 05 00 04 00 | +# | 09 0e 0b 0d | = | 01 02 03 01 | x | 00 05 00 04 | +# | 0d 09 0e 0b | | 01 01 02 03 | | 04 00 05 00 | +# | 0b 0d 09 0e | | 03 01 01 02 | | 00 04 00 05 | + +$code.=<<___; + # multiplication by 0x05-0x00-0x04-0x00 + pshufd \$0x4E, @x[0], @t[0] + pshufd \$0x4E, @x[6], @t[6] + pxor @x[0], @t[0] + pshufd \$0x4E, @x[7], @t[7] + pxor @x[6], @t[6] + pshufd \$0x4E, @x[1], @t[1] + pxor @x[7], @t[7] + pshufd \$0x4E, @x[2], @t[2] + pxor @x[1], @t[1] + pshufd \$0x4E, @x[3], @t[3] + pxor @x[2], @t[2] + pxor @t[6], @x[0] + pxor @t[6], @x[1] + pshufd \$0x4E, @x[4], @t[4] + pxor @x[3], @t[3] + pxor @t[0], @x[2] + pxor @t[1], @x[3] + pshufd \$0x4E, @x[5], @t[5] + pxor @x[4], @t[4] + pxor @t[7], @x[1] + pxor @t[2], @x[4] + pxor @x[5], @t[5] + + pxor @t[7], @x[2] + pxor @t[6], @x[3] + pxor @t[6], @x[4] + pxor @t[3], @x[5] + pxor @t[4], @x[6] + pxor @t[7], @x[4] + pxor @t[7], @x[5] + pxor @t[5], @x[7] +___ + &MixColumns (@x,@t,1); # flipped 2<->3 and 4<->6 +} + +sub aesenc { # not used +my @b=@_[0..7]; +my @t=@_[8..15]; +$code.=<<___; + movdqa 0x30($const),@t[0] # .LSR +___ + &ShiftRows (@b,@t[0]); + &Sbox (@b,@t); + &MixColumns (@b[0,1,4,6,3,7,2,5],@t); +} + +sub aesenclast { # not used +my @b=@_[0..7]; +my @t=@_[8..15]; +$code.=<<___; + movdqa 0x40($const),@t[0] # .LSRM0 +___ + &ShiftRows (@b,@t[0]); + &Sbox (@b,@t); +$code.=<<___ + pxor 0x00($key),@b[0] + pxor 0x10($key),@b[1] + pxor 0x20($key),@b[4] + pxor 0x30($key),@b[6] + pxor 0x40($key),@b[3] + pxor 0x50($key),@b[7] + pxor 0x60($key),@b[2] + pxor 0x70($key),@b[5] +___ +} + +sub swapmove { +my ($a,$b,$n,$mask,$t)=@_; +$code.=<<___; + movdqa $b,$t + psrlq \$$n,$b + pxor $a,$b + pand $mask,$b + pxor $b,$a + psllq \$$n,$b + pxor $t,$b +___ +} +sub swapmove2x { +my ($a0,$b0,$a1,$b1,$n,$mask,$t0,$t1)=@_; +$code.=<<___; + movdqa $b0,$t0 + psrlq \$$n,$b0 + movdqa $b1,$t1 + psrlq \$$n,$b1 + pxor $a0,$b0 + pxor $a1,$b1 + pand $mask,$b0 + pand $mask,$b1 + pxor $b0,$a0 + psllq \$$n,$b0 + pxor $b1,$a1 + psllq \$$n,$b1 + pxor $t0,$b0 + pxor $t1,$b1 +___ +} + +sub bitslice { +my @x=reverse(@_[0..7]); +my ($t0,$t1,$t2,$t3)=@_[8..11]; +$code.=<<___; + movdqa 0x00($const),$t0 # .LBS0 + movdqa 0x10($const),$t1 # .LBS1 +___ + &swapmove2x(@x[0,1,2,3],1,$t0,$t2,$t3); + &swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3); +$code.=<<___; + movdqa 0x20($const),$t0 # .LBS2 +___ + &swapmove2x(@x[0,2,1,3],2,$t1,$t2,$t3); + &swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3); + + &swapmove2x(@x[0,4,1,5],4,$t0,$t2,$t3); + &swapmove2x(@x[2,6,3,7],4,$t0,$t2,$t3); +} + +$code.=<<___; +.text + +.extern asm_AES_encrypt +.extern asm_AES_decrypt + +.type _bsaes_encrypt8,\@abi-omnipotent +.align 64 +_bsaes_encrypt8: + lea .LBS0(%rip), $const # constants table + + movdqa ($key), @XMM[9] # round 0 key + lea 0x10($key), $key + movdqa 0x50($const), @XMM[8] # .LM0SR + pxor @XMM[9], @XMM[0] # xor with round0 key + pxor @XMM[9], @XMM[1] + pshufb @XMM[8], @XMM[0] + pxor @XMM[9], @XMM[2] + pshufb @XMM[8], @XMM[1] + pxor @XMM[9], @XMM[3] + pshufb @XMM[8], @XMM[2] + pxor @XMM[9], @XMM[4] + pshufb @XMM[8], @XMM[3] + pxor @XMM[9], @XMM[5] + pshufb @XMM[8], @XMM[4] + pxor @XMM[9], @XMM[6] + pshufb @XMM[8], @XMM[5] + pxor @XMM[9], @XMM[7] + pshufb @XMM[8], @XMM[6] + pshufb @XMM[8], @XMM[7] +_bsaes_encrypt8_bitslice: +___ + &bitslice (@XMM[0..7, 8..11]); +$code.=<<___; + dec $rounds + jmp .Lenc_sbox +.align 16 +.Lenc_loop: +___ + &ShiftRows (@XMM[0..7, 8]); +$code.=".Lenc_sbox:\n"; + &Sbox (@XMM[0..7, 8..15]); +$code.=<<___; + dec $rounds + jl .Lenc_done +___ + &MixColumns (@XMM[0,1,4,6,3,7,2,5, 8..15]); +$code.=<<___; + movdqa 0x30($const), @XMM[8] # .LSR + jnz .Lenc_loop + movdqa 0x40($const), @XMM[8] # .LSRM0 + jmp .Lenc_loop +.align 16 +.Lenc_done: +___ + # output in lsb > [t0, t1, t4, t6, t3, t7, t2, t5] < msb + &bitslice (@XMM[0,1,4,6,3,7,2,5, 8..11]); +$code.=<<___; + movdqa ($key), @XMM[8] # last round key + pxor @XMM[8], @XMM[4] + pxor @XMM[8], @XMM[6] + pxor @XMM[8], @XMM[3] + pxor @XMM[8], @XMM[7] + pxor @XMM[8], @XMM[2] + pxor @XMM[8], @XMM[5] + pxor @XMM[8], @XMM[0] + pxor @XMM[8], @XMM[1] + ret +.size _bsaes_encrypt8,.-_bsaes_encrypt8 + +.type _bsaes_decrypt8,\@abi-omnipotent +.align 64 +_bsaes_decrypt8: + lea .LBS0(%rip), $const # constants table + + movdqa ($key), @XMM[9] # round 0 key + lea 0x10($key), $key + movdqa -0x30($const), @XMM[8] # .LM0ISR + pxor @XMM[9], @XMM[0] # xor with round0 key + pxor @XMM[9], @XMM[1] + pshufb @XMM[8], @XMM[0] + pxor @XMM[9], @XMM[2] + pshufb @XMM[8], @XMM[1] + pxor @XMM[9], @XMM[3] + pshufb @XMM[8], @XMM[2] + pxor @XMM[9], @XMM[4] + pshufb @XMM[8], @XMM[3] + pxor @XMM[9], @XMM[5] + pshufb @XMM[8], @XMM[4] + pxor @XMM[9], @XMM[6] + pshufb @XMM[8], @XMM[5] + pxor @XMM[9], @XMM[7] + pshufb @XMM[8], @XMM[6] + pshufb @XMM[8], @XMM[7] +___ + &bitslice (@XMM[0..7, 8..11]); +$code.=<<___; + dec $rounds + jmp .Ldec_sbox +.align 16 +.Ldec_loop: +___ + &ShiftRows (@XMM[0..7, 8]); +$code.=".Ldec_sbox:\n"; + &InvSbox (@XMM[0..7, 8..15]); +$code.=<<___; + dec $rounds + jl .Ldec_done +___ + &InvMixColumns (@XMM[0,1,6,4,2,7,3,5, 8..15]); +$code.=<<___; + movdqa -0x10($const), @XMM[8] # .LISR + jnz .Ldec_loop + movdqa -0x20($const), @XMM[8] # .LISRM0 + jmp .Ldec_loop +.align 16 +.Ldec_done: +___ + &bitslice (@XMM[0,1,6,4,2,7,3,5, 8..11]); +$code.=<<___; + movdqa ($key), @XMM[8] # last round key + pxor @XMM[8], @XMM[6] + pxor @XMM[8], @XMM[4] + pxor @XMM[8], @XMM[2] + pxor @XMM[8], @XMM[7] + pxor @XMM[8], @XMM[3] + pxor @XMM[8], @XMM[5] + pxor @XMM[8], @XMM[0] + pxor @XMM[8], @XMM[1] + ret +.size _bsaes_decrypt8,.-_bsaes_decrypt8 +___ +} +{ +my ($out,$inp,$rounds,$const)=("%rax","%rcx","%r10d","%r11"); + +sub bitslice_key { +my @x=reverse(@_[0..7]); +my ($bs0,$bs1,$bs2,$t2,$t3)=@_[8..12]; + + &swapmove (@x[0,1],1,$bs0,$t2,$t3); +$code.=<<___; + #&swapmove(@x[2,3],1,$t0,$t2,$t3); + movdqa @x[0], @x[2] + movdqa @x[1], @x[3] +___ + #&swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3); + + &swapmove2x (@x[0,2,1,3],2,$bs1,$t2,$t3); +$code.=<<___; + #&swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3); + movdqa @x[0], @x[4] + movdqa @x[2], @x[6] + movdqa @x[1], @x[5] + movdqa @x[3], @x[7] +___ + &swapmove2x (@x[0,4,1,5],4,$bs2,$t2,$t3); + &swapmove2x (@x[2,6,3,7],4,$bs2,$t2,$t3); +} + +$code.=<<___; +.type _bsaes_key_convert,\@abi-omnipotent +.align 16 +_bsaes_key_convert: + lea .Lmasks(%rip), $const + movdqu ($inp), %xmm7 # load round 0 key + lea 0x10($inp), $inp + movdqa 0x00($const), %xmm0 # 0x01... + movdqa 0x10($const), %xmm1 # 0x02... + movdqa 0x20($const), %xmm2 # 0x04... + movdqa 0x30($const), %xmm3 # 0x08... + movdqa 0x40($const), %xmm4 # .LM0 + pcmpeqd %xmm5, %xmm5 # .LNOT + + movdqu ($inp), %xmm6 # load round 1 key + movdqa %xmm7, ($out) # save round 0 key + lea 0x10($out), $out + dec $rounds + jmp .Lkey_loop +.align 16 +.Lkey_loop: + pshufb %xmm4, %xmm6 # .LM0 + + movdqa %xmm0, %xmm8 + movdqa %xmm1, %xmm9 + + pand %xmm6, %xmm8 + pand %xmm6, %xmm9 + movdqa %xmm2, %xmm10 + pcmpeqb %xmm0, %xmm8 + psllq \$4, %xmm0 # 0x10... + movdqa %xmm3, %xmm11 + pcmpeqb %xmm1, %xmm9 + psllq \$4, %xmm1 # 0x20... + + pand %xmm6, %xmm10 + pand %xmm6, %xmm11 + movdqa %xmm0, %xmm12 + pcmpeqb %xmm2, %xmm10 + psllq \$4, %xmm2 # 0x40... + movdqa %xmm1, %xmm13 + pcmpeqb %xmm3, %xmm11 + psllq \$4, %xmm3 # 0x80... + + movdqa %xmm2, %xmm14 + movdqa %xmm3, %xmm15 + pxor %xmm5, %xmm8 # "pnot" + pxor %xmm5, %xmm9 + + pand %xmm6, %xmm12 + pand %xmm6, %xmm13 + movdqa %xmm8, 0x00($out) # write bit-sliced round key + pcmpeqb %xmm0, %xmm12 + psrlq \$4, %xmm0 # 0x01... + movdqa %xmm9, 0x10($out) + pcmpeqb %xmm1, %xmm13 + psrlq \$4, %xmm1 # 0x02... + lea 0x10($inp), $inp + + pand %xmm6, %xmm14 + pand %xmm6, %xmm15 + movdqa %xmm10, 0x20($out) + pcmpeqb %xmm2, %xmm14 + psrlq \$4, %xmm2 # 0x04... + movdqa %xmm11, 0x30($out) + pcmpeqb %xmm3, %xmm15 + psrlq \$4, %xmm3 # 0x08... + movdqu ($inp), %xmm6 # load next round key + + pxor %xmm5, %xmm13 # "pnot" + pxor %xmm5, %xmm14 + movdqa %xmm12, 0x40($out) + movdqa %xmm13, 0x50($out) + movdqa %xmm14, 0x60($out) + movdqa %xmm15, 0x70($out) + lea 0x80($out),$out + dec $rounds + jnz .Lkey_loop + + movdqa 0x50($const), %xmm7 # .L63 + #movdqa %xmm6, ($out) # don't save last round key + ret +.size _bsaes_key_convert,.-_bsaes_key_convert +___ +} + +if (0 && !$win64) { # following four functions are unsupported interface + # used for benchmarking... +$code.=<<___; +.globl bsaes_enc_key_convert +.type bsaes_enc_key_convert,\@function,2 +.align 16 +bsaes_enc_key_convert: + mov 240($inp),%r10d # pass rounds + mov $inp,%rcx # pass key + mov $out,%rax # pass key schedule + call _bsaes_key_convert + pxor %xmm6,%xmm7 # fix up last round key + movdqa %xmm7,(%rax) # save last round key + ret +.size bsaes_enc_key_convert,.-bsaes_enc_key_convert + +.globl bsaes_encrypt_128 +.type bsaes_encrypt_128,\@function,4 +.align 16 +bsaes_encrypt_128: +.Lenc128_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + movdqu 0x60($inp), @XMM[6] + movdqu 0x70($inp), @XMM[7] + mov $key, %rax # pass the $key + lea 0x80($inp), $inp + mov \$10,%r10d + + call _bsaes_encrypt8 + + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[2], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$0x80,$len + ja .Lenc128_loop + ret +.size bsaes_encrypt_128,.-bsaes_encrypt_128 + +.globl bsaes_dec_key_convert +.type bsaes_dec_key_convert,\@function,2 +.align 16 +bsaes_dec_key_convert: + mov 240($inp),%r10d # pass rounds + mov $inp,%rcx # pass key + mov $out,%rax # pass key schedule + call _bsaes_key_convert + pxor ($out),%xmm7 # fix up round 0 key + movdqa %xmm6,(%rax) # save last round key + movdqa %xmm7,($out) + ret +.size bsaes_dec_key_convert,.-bsaes_dec_key_convert + +.globl bsaes_decrypt_128 +.type bsaes_decrypt_128,\@function,4 +.align 16 +bsaes_decrypt_128: +.Ldec128_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + movdqu 0x60($inp), @XMM[6] + movdqu 0x70($inp), @XMM[7] + mov $key, %rax # pass the $key + lea 0x80($inp), $inp + mov \$10,%r10d + + call _bsaes_decrypt8 + + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$0x80,$len + ja .Ldec128_loop + ret +.size bsaes_decrypt_128,.-bsaes_decrypt_128 +___ +} +{ +###################################################################### +# +# OpenSSL interface +# +my ($arg1,$arg2,$arg3,$arg4,$arg5,$arg6)=$win64 ? ("%rcx","%rdx","%r8","%r9","%r10","%r11d") + : ("%rdi","%rsi","%rdx","%rcx","%r8","%r9d"); +my ($inp,$out,$len,$key)=("%r12","%r13","%r14","%r15"); + +if ($ecb) { +$code.=<<___; +.globl bsaes_ecb_encrypt_blocks +.type bsaes_ecb_encrypt_blocks,\@abi-omnipotent +.align 16 +bsaes_ecb_encrypt_blocks: + mov %rsp, %rax +.Lecb_enc_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp),%rsp +___ +$code.=<<___ if ($win64); + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lecb_enc_body: +___ +$code.=<<___; + mov %rsp,%rbp # backup %rsp + mov 240($arg4),%eax # rounds + mov $arg1,$inp # backup arguments + mov $arg2,$out + mov $arg3,$len + mov $arg4,$key + cmp \$8,$arg3 + jb .Lecb_enc_short + + mov %eax,%ebx # backup rounds + shl \$7,%rax # 128 bytes per inner round key + sub \$`128-32`,%rax # size of bit-sliced key schedule + sub %rax,%rsp + mov %rsp,%rax # pass key schedule + mov $key,%rcx # pass key + mov %ebx,%r10d # pass rounds + call _bsaes_key_convert + pxor %xmm6,%xmm7 # fix up last round key + movdqa %xmm7,(%rax) # save last round key + + sub \$8,$len +.Lecb_enc_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + mov %rsp, %rax # pass key schedule + movdqu 0x60($inp), @XMM[6] + mov %ebx,%r10d # pass rounds + movdqu 0x70($inp), @XMM[7] + lea 0x80($inp), $inp + + call _bsaes_encrypt8 + + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[2], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$8,$len + jnc .Lecb_enc_loop + + add \$8,$len + jz .Lecb_enc_done + + movdqu 0x00($inp), @XMM[0] # load input + mov %rsp, %rax # pass key schedule + mov %ebx,%r10d # pass rounds + cmp \$2,$len + jb .Lecb_enc_one + movdqu 0x10($inp), @XMM[1] + je .Lecb_enc_two + movdqu 0x20($inp), @XMM[2] + cmp \$4,$len + jb .Lecb_enc_three + movdqu 0x30($inp), @XMM[3] + je .Lecb_enc_four + movdqu 0x40($inp), @XMM[4] + cmp \$6,$len + jb .Lecb_enc_five + movdqu 0x50($inp), @XMM[5] + je .Lecb_enc_six + movdqu 0x60($inp), @XMM[6] + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[2], 0x60($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_six: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_five: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_four: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_three: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_two: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_one: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_short: + lea ($inp), $arg1 + lea ($out), $arg2 + lea ($key), $arg3 + call asm_AES_encrypt + lea 16($inp), $inp + lea 16($out), $out + dec $len + jnz .Lecb_enc_short + +.Lecb_enc_done: + lea (%rsp),%rax + pxor %xmm0, %xmm0 +.Lecb_enc_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + jb .Lecb_enc_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lecb_enc_epilogue: + ret +.size bsaes_ecb_encrypt_blocks,.-bsaes_ecb_encrypt_blocks + +.globl bsaes_ecb_decrypt_blocks +.type bsaes_ecb_decrypt_blocks,\@abi-omnipotent +.align 16 +bsaes_ecb_decrypt_blocks: + mov %rsp, %rax +.Lecb_dec_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp),%rsp +___ +$code.=<<___ if ($win64); + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lecb_dec_body: +___ +$code.=<<___; + mov %rsp,%rbp # backup %rsp + mov 240($arg4),%eax # rounds + mov $arg1,$inp # backup arguments + mov $arg2,$out + mov $arg3,$len + mov $arg4,$key + cmp \$8,$arg3 + jb .Lecb_dec_short + + mov %eax,%ebx # backup rounds + shl \$7,%rax # 128 bytes per inner round key + sub \$`128-32`,%rax # size of bit-sliced key schedule + sub %rax,%rsp + mov %rsp,%rax # pass key schedule + mov $key,%rcx # pass key + mov %ebx,%r10d # pass rounds + call _bsaes_key_convert + pxor (%rsp),%xmm7 # fix up 0 round key + movdqa %xmm6,(%rax) # save last round key + movdqa %xmm7,(%rsp) + + sub \$8,$len +.Lecb_dec_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + mov %rsp, %rax # pass key schedule + movdqu 0x60($inp), @XMM[6] + mov %ebx,%r10d # pass rounds + movdqu 0x70($inp), @XMM[7] + lea 0x80($inp), $inp + + call _bsaes_decrypt8 + + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$8,$len + jnc .Lecb_dec_loop + + add \$8,$len + jz .Lecb_dec_done + + movdqu 0x00($inp), @XMM[0] # load input + mov %rsp, %rax # pass key schedule + mov %ebx,%r10d # pass rounds + cmp \$2,$len + jb .Lecb_dec_one + movdqu 0x10($inp), @XMM[1] + je .Lecb_dec_two + movdqu 0x20($inp), @XMM[2] + cmp \$4,$len + jb .Lecb_dec_three + movdqu 0x30($inp), @XMM[3] + je .Lecb_dec_four + movdqu 0x40($inp), @XMM[4] + cmp \$6,$len + jb .Lecb_dec_five + movdqu 0x50($inp), @XMM[5] + je .Lecb_dec_six + movdqu 0x60($inp), @XMM[6] + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_six: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_five: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_four: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_three: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_two: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_one: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_short: + lea ($inp), $arg1 + lea ($out), $arg2 + lea ($key), $arg3 + call asm_AES_decrypt + lea 16($inp), $inp + lea 16($out), $out + dec $len + jnz .Lecb_dec_short + +.Lecb_dec_done: + lea (%rsp),%rax + pxor %xmm0, %xmm0 +.Lecb_dec_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + jb .Lecb_dec_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lecb_dec_epilogue: + ret +.size bsaes_ecb_decrypt_blocks,.-bsaes_ecb_decrypt_blocks +___ +} +$code.=<<___; +.extern asm_AES_cbc_encrypt +.globl bsaes_cbc_encrypt +.type bsaes_cbc_encrypt,\@abi-omnipotent +.align 16 +bsaes_cbc_encrypt: +___ +$code.=<<___ if ($win64); + mov 48(%rsp),$arg6 # pull direction flag +___ +$code.=<<___; + cmp \$0,$arg6 + jne asm_AES_cbc_encrypt + cmp \$128,$arg3 + jb asm_AES_cbc_encrypt + + mov %rsp, %rax +.Lcbc_dec_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp), %rsp +___ +$code.=<<___ if ($win64); + mov 0xa0(%rsp),$arg5 # pull ivp + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lcbc_dec_body: +___ +$code.=<<___; + mov %rsp, %rbp # backup %rsp + mov 240($arg4), %eax # rounds + mov $arg1, $inp # backup arguments + mov $arg2, $out + mov $arg3, $len + mov $arg4, $key + mov $arg5, %rbx + shr \$4, $len # bytes to blocks + + mov %eax, %edx # rounds + shl \$7, %rax # 128 bytes per inner round key + sub \$`128-32`, %rax # size of bit-sliced key schedule + sub %rax, %rsp + + mov %rsp, %rax # pass key schedule + mov $key, %rcx # pass key + mov %edx, %r10d # pass rounds + call _bsaes_key_convert + pxor (%rsp),%xmm7 # fix up 0 round key + movdqa %xmm6,(%rax) # save last round key + movdqa %xmm7,(%rsp) + + movdqu (%rbx), @XMM[15] # load IV + sub \$8,$len +.Lcbc_dec_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + mov %rsp, %rax # pass key schedule + movdqu 0x60($inp), @XMM[6] + mov %edx,%r10d # pass rounds + movdqu 0x70($inp), @XMM[7] + movdqa @XMM[15], 0x20(%rbp) # put aside IV + + call _bsaes_decrypt8 + + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[11] + pxor @XMM[10], @XMM[4] + movdqu 0x40($inp), @XMM[12] + pxor @XMM[11], @XMM[2] + movdqu 0x50($inp), @XMM[13] + pxor @XMM[12], @XMM[7] + movdqu 0x60($inp), @XMM[14] + pxor @XMM[13], @XMM[3] + movdqu 0x70($inp), @XMM[15] # IV + pxor @XMM[14], @XMM[5] + movdqu @XMM[0], 0x00($out) # write output + lea 0x80($inp), $inp + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$8,$len + jnc .Lcbc_dec_loop + + add \$8,$len + jz .Lcbc_dec_done + + movdqu 0x00($inp), @XMM[0] # load input + mov %rsp, %rax # pass key schedule + mov %edx, %r10d # pass rounds + cmp \$2,$len + jb .Lcbc_dec_one + movdqu 0x10($inp), @XMM[1] + je .Lcbc_dec_two + movdqu 0x20($inp), @XMM[2] + cmp \$4,$len + jb .Lcbc_dec_three + movdqu 0x30($inp), @XMM[3] + je .Lcbc_dec_four + movdqu 0x40($inp), @XMM[4] + cmp \$6,$len + jb .Lcbc_dec_five + movdqu 0x50($inp), @XMM[5] + je .Lcbc_dec_six + movdqu 0x60($inp), @XMM[6] + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[11] + pxor @XMM[10], @XMM[4] + movdqu 0x40($inp), @XMM[12] + pxor @XMM[11], @XMM[2] + movdqu 0x50($inp), @XMM[13] + pxor @XMM[12], @XMM[7] + movdqu 0x60($inp), @XMM[15] # IV + pxor @XMM[13], @XMM[3] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_six: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[11] + pxor @XMM[10], @XMM[4] + movdqu 0x40($inp), @XMM[12] + pxor @XMM[11], @XMM[2] + movdqu 0x50($inp), @XMM[15] # IV + pxor @XMM[12], @XMM[7] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_five: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[11] + pxor @XMM[10], @XMM[4] + movdqu 0x40($inp), @XMM[15] # IV + pxor @XMM[11], @XMM[2] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_four: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[15] # IV + pxor @XMM[10], @XMM[4] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_three: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[15] # IV + pxor @XMM[9], @XMM[6] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_two: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[15] # IV + pxor @XMM[8], @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_one: + lea ($inp), $arg1 + lea 0x20(%rbp), $arg2 # buffer output + lea ($key), $arg3 + call asm_AES_decrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[15] # ^= IV + movdqu @XMM[15], ($out) # write output + movdqa @XMM[0], @XMM[15] # IV + +.Lcbc_dec_done: + movdqu @XMM[15], (%rbx) # return IV + lea (%rsp), %rax + pxor %xmm0, %xmm0 +.Lcbc_dec_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + ja .Lcbc_dec_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lcbc_dec_epilogue: + ret +.size bsaes_cbc_encrypt,.-bsaes_cbc_encrypt + +.globl bsaes_ctr32_encrypt_blocks +.type bsaes_ctr32_encrypt_blocks,\@abi-omnipotent +.align 16 +bsaes_ctr32_encrypt_blocks: + mov %rsp, %rax +.Lctr_enc_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp), %rsp +___ +$code.=<<___ if ($win64); + mov 0xa0(%rsp),$arg5 # pull ivp + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lctr_enc_body: +___ +$code.=<<___; + mov %rsp, %rbp # backup %rsp + movdqu ($arg5), %xmm0 # load counter + mov 240($arg4), %eax # rounds + mov $arg1, $inp # backup arguments + mov $arg2, $out + mov $arg3, $len + mov $arg4, $key + movdqa %xmm0, 0x20(%rbp) # copy counter + cmp \$8, $arg3 + jb .Lctr_enc_short + + mov %eax, %ebx # rounds + shl \$7, %rax # 128 bytes per inner round key + sub \$`128-32`, %rax # size of bit-sliced key schedule + sub %rax, %rsp + + mov %rsp, %rax # pass key schedule + mov $key, %rcx # pass key + mov %ebx, %r10d # pass rounds + call _bsaes_key_convert + pxor %xmm6,%xmm7 # fix up last round key + movdqa %xmm7,(%rax) # save last round key + + movdqa (%rsp), @XMM[9] # load round0 key + lea .LADD1(%rip), %r11 + movdqa 0x20(%rbp), @XMM[0] # counter copy + movdqa -0x20(%r11), @XMM[8] # .LSWPUP + pshufb @XMM[8], @XMM[9] # byte swap upper part + pshufb @XMM[8], @XMM[0] + movdqa @XMM[9], (%rsp) # save adjusted round0 key + jmp .Lctr_enc_loop +.align 16 +.Lctr_enc_loop: + movdqa @XMM[0], 0x20(%rbp) # save counter + movdqa @XMM[0], @XMM[1] # prepare 8 counter values + movdqa @XMM[0], @XMM[2] + paddd 0x00(%r11), @XMM[1] # .LADD1 + movdqa @XMM[0], @XMM[3] + paddd 0x10(%r11), @XMM[2] # .LADD2 + movdqa @XMM[0], @XMM[4] + paddd 0x20(%r11), @XMM[3] # .LADD3 + movdqa @XMM[0], @XMM[5] + paddd 0x30(%r11), @XMM[4] # .LADD4 + movdqa @XMM[0], @XMM[6] + paddd 0x40(%r11), @XMM[5] # .LADD5 + movdqa @XMM[0], @XMM[7] + paddd 0x50(%r11), @XMM[6] # .LADD6 + paddd 0x60(%r11), @XMM[7] # .LADD7 + + # Borrow prologue from _bsaes_encrypt8 to use the opportunity + # to flip byte order in 32-bit counter + movdqa (%rsp), @XMM[9] # round 0 key + lea 0x10(%rsp), %rax # pass key schedule + movdqa -0x10(%r11), @XMM[8] # .LSWPUPM0SR + pxor @XMM[9], @XMM[0] # xor with round0 key + pxor @XMM[9], @XMM[1] + pshufb @XMM[8], @XMM[0] + pxor @XMM[9], @XMM[2] + pshufb @XMM[8], @XMM[1] + pxor @XMM[9], @XMM[3] + pshufb @XMM[8], @XMM[2] + pxor @XMM[9], @XMM[4] + pshufb @XMM[8], @XMM[3] + pxor @XMM[9], @XMM[5] + pshufb @XMM[8], @XMM[4] + pxor @XMM[9], @XMM[6] + pshufb @XMM[8], @XMM[5] + pxor @XMM[9], @XMM[7] + pshufb @XMM[8], @XMM[6] + lea .LBS0(%rip), %r11 # constants table + pshufb @XMM[8], @XMM[7] + mov %ebx,%r10d # pass rounds + + call _bsaes_encrypt8_bitslice + + sub \$8,$len + jc .Lctr_enc_loop_done + + movdqu 0x00($inp), @XMM[8] # load input + movdqu 0x10($inp), @XMM[9] + movdqu 0x20($inp), @XMM[10] + movdqu 0x30($inp), @XMM[11] + movdqu 0x40($inp), @XMM[12] + movdqu 0x50($inp), @XMM[13] + movdqu 0x60($inp), @XMM[14] + movdqu 0x70($inp), @XMM[15] + lea 0x80($inp),$inp + pxor @XMM[0], @XMM[8] + movdqa 0x20(%rbp), @XMM[0] # load counter + pxor @XMM[9], @XMM[1] + movdqu @XMM[8], 0x00($out) # write output + pxor @XMM[10], @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor @XMM[11], @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor @XMM[12], @XMM[3] + movdqu @XMM[6], 0x30($out) + pxor @XMM[13], @XMM[7] + movdqu @XMM[3], 0x40($out) + pxor @XMM[14], @XMM[2] + movdqu @XMM[7], 0x50($out) + pxor @XMM[15], @XMM[5] + movdqu @XMM[2], 0x60($out) + lea .LADD1(%rip), %r11 + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + paddd 0x70(%r11), @XMM[0] # .LADD8 + jnz .Lctr_enc_loop + + jmp .Lctr_enc_done +.align 16 +.Lctr_enc_loop_done: + add \$8, $len + movdqu 0x00($inp), @XMM[8] # load input + pxor @XMM[8], @XMM[0] + movdqu @XMM[0], 0x00($out) # write output + cmp \$2,$len + jb .Lctr_enc_done + movdqu 0x10($inp), @XMM[9] + pxor @XMM[9], @XMM[1] + movdqu @XMM[1], 0x10($out) + je .Lctr_enc_done + movdqu 0x20($inp), @XMM[10] + pxor @XMM[10], @XMM[4] + movdqu @XMM[4], 0x20($out) + cmp \$4,$len + jb .Lctr_enc_done + movdqu 0x30($inp), @XMM[11] + pxor @XMM[11], @XMM[6] + movdqu @XMM[6], 0x30($out) + je .Lctr_enc_done + movdqu 0x40($inp), @XMM[12] + pxor @XMM[12], @XMM[3] + movdqu @XMM[3], 0x40($out) + cmp \$6,$len + jb .Lctr_enc_done + movdqu 0x50($inp), @XMM[13] + pxor @XMM[13], @XMM[7] + movdqu @XMM[7], 0x50($out) + je .Lctr_enc_done + movdqu 0x60($inp), @XMM[14] + pxor @XMM[14], @XMM[2] + movdqu @XMM[2], 0x60($out) + jmp .Lctr_enc_done + +.align 16 +.Lctr_enc_short: + lea 0x20(%rbp), $arg1 + lea 0x30(%rbp), $arg2 + lea ($key), $arg3 + call asm_AES_encrypt + movdqu ($inp), @XMM[1] + lea 16($inp), $inp + mov 0x2c(%rbp), %eax # load 32-bit counter + bswap %eax + pxor 0x30(%rbp), @XMM[1] + inc %eax # increment + movdqu @XMM[1], ($out) + bswap %eax + lea 16($out), $out + mov %eax, 0x2c(%rsp) # save 32-bit counter + dec $len + jnz .Lctr_enc_short + +.Lctr_enc_done: + lea (%rsp), %rax + pxor %xmm0, %xmm0 +.Lctr_enc_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + ja .Lctr_enc_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lctr_enc_epilogue: + ret +.size bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks +___ +###################################################################### +# void bsaes_xts_[en|de]crypt(const char *inp,char *out,size_t len, +# const AES_KEY *key1, const AES_KEY *key2, +# const unsigned char iv[16]); +# +my ($twmask,$twres,$twtmp)=@XMM[13..15]; +$arg6=~s/d$//; + +$code.=<<___; +.globl bsaes_xts_encrypt +.type bsaes_xts_encrypt,\@abi-omnipotent +.align 16 +bsaes_xts_encrypt: + mov %rsp, %rax +.Lxts_enc_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp), %rsp +___ +$code.=<<___ if ($win64); + mov 0xa0(%rsp),$arg5 # pull key2 + mov 0xa8(%rsp),$arg6 # pull ivp + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lxts_enc_body: +___ +$code.=<<___; + mov %rsp, %rbp # backup %rsp + mov $arg1, $inp # backup arguments + mov $arg2, $out + mov $arg3, $len + mov $arg4, $key + + lea ($arg6), $arg1 + lea 0x20(%rbp), $arg2 + lea ($arg5), $arg3 + call asm_AES_encrypt # generate initial tweak + + mov 240($key), %eax # rounds + mov $len, %rbx # backup $len + + mov %eax, %edx # rounds + shl \$7, %rax # 128 bytes per inner round key + sub \$`128-32`, %rax # size of bit-sliced key schedule + sub %rax, %rsp + + mov %rsp, %rax # pass key schedule + mov $key, %rcx # pass key + mov %edx, %r10d # pass rounds + call _bsaes_key_convert + pxor %xmm6, %xmm7 # fix up last round key + movdqa %xmm7, (%rax) # save last round key + + and \$-16, $len + sub \$0x80, %rsp # place for tweak[8] + movdqa 0x20(%rbp), @XMM[7] # initial tweak + + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + + sub \$0x80, $len + jc .Lxts_enc_short + jmp .Lxts_enc_loop + +.align 16 +.Lxts_enc_loop: +___ + for ($i=0;$i<7;$i++) { + $code.=<<___; + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + movdqa @XMM[7], @XMM[$i] + movdqa @XMM[7], `0x10*$i`(%rsp)# save tweak[$i] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] +___ + $code.=<<___ if ($i>=1); + movdqu `0x10*($i-1)`($inp), @XMM[8+$i-1] +___ + $code.=<<___ if ($i>=2); + pxor @XMM[8+$i-2], @XMM[$i-2]# input[] ^ tweak[] +___ + } +$code.=<<___; + movdqu 0x60($inp), @XMM[8+6] + pxor @XMM[8+5], @XMM[5] + movdqu 0x70($inp), @XMM[8+7] + lea 0x80($inp), $inp + movdqa @XMM[7], 0x70(%rsp) + pxor @XMM[8+6], @XMM[6] + lea 0x80(%rsp), %rax # pass key schedule + pxor @XMM[8+7], @XMM[7] + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor 0x40(%rsp), @XMM[3] + movdqu @XMM[6], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[3], 0x40($out) + pxor 0x60(%rsp), @XMM[2] + movdqu @XMM[7], 0x50($out) + pxor 0x70(%rsp), @XMM[5] + movdqu @XMM[2], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + + movdqa 0x70(%rsp), @XMM[7] # prepare next iteration tweak + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] + + sub \$0x80,$len + jnc .Lxts_enc_loop + +.Lxts_enc_short: + add \$0x80, $len + jz .Lxts_enc_done +___ + for ($i=0;$i<7;$i++) { + $code.=<<___; + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + movdqa @XMM[7], @XMM[$i] + movdqa @XMM[7], `0x10*$i`(%rsp)# save tweak[$i] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] +___ + $code.=<<___ if ($i>=1); + movdqu `0x10*($i-1)`($inp), @XMM[8+$i-1] + cmp \$`0x10*$i`,$len + je .Lxts_enc_$i +___ + $code.=<<___ if ($i>=2); + pxor @XMM[8+$i-2], @XMM[$i-2]# input[] ^ tweak[] +___ + } +$code.=<<___; + movdqu 0x60($inp), @XMM[8+6] + pxor @XMM[8+5], @XMM[5] + movdqa @XMM[7], 0x70(%rsp) + lea 0x70($inp), $inp + pxor @XMM[8+6], @XMM[6] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor 0x40(%rsp), @XMM[3] + movdqu @XMM[6], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[3], 0x40($out) + pxor 0x60(%rsp), @XMM[2] + movdqu @XMM[7], 0x50($out) + movdqu @XMM[2], 0x60($out) + lea 0x70($out), $out + + movdqa 0x70(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_6: + pxor @XMM[8+4], @XMM[4] + lea 0x60($inp), $inp + pxor @XMM[8+5], @XMM[5] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor 0x40(%rsp), @XMM[3] + movdqu @XMM[6], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + lea 0x60($out), $out + + movdqa 0x60(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_5: + pxor @XMM[8+3], @XMM[3] + lea 0x50($inp), $inp + pxor @XMM[8+4], @XMM[4] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor 0x40(%rsp), @XMM[3] + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + lea 0x50($out), $out + + movdqa 0x50(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_4: + pxor @XMM[8+2], @XMM[2] + lea 0x40($inp), $inp + pxor @XMM[8+3], @XMM[3] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + lea 0x40($out), $out + + movdqa 0x40(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_3: + pxor @XMM[8+1], @XMM[1] + lea 0x30($inp), $inp + pxor @XMM[8+2], @XMM[2] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + lea 0x30($out), $out + + movdqa 0x30(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_2: + pxor @XMM[8+0], @XMM[0] + lea 0x20($inp), $inp + pxor @XMM[8+1], @XMM[1] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + lea 0x20($out), $out + + movdqa 0x20(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_1: + pxor @XMM[0], @XMM[8] + lea 0x10($inp), $inp + movdqa @XMM[8], 0x20(%rbp) + lea 0x20(%rbp), $arg1 + lea 0x20(%rbp), $arg2 + lea ($key), $arg3 + call asm_AES_encrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[0] # ^= tweak[] + #pxor @XMM[8], @XMM[0] + #lea 0x80(%rsp), %rax # pass key schedule + #mov %edx, %r10d # pass rounds + #call _bsaes_encrypt8 + #pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + movdqu @XMM[0], 0x00($out) # write output + lea 0x10($out), $out + + movdqa 0x10(%rsp), @XMM[7] # next iteration tweak + +.Lxts_enc_done: + and \$15, %ebx + jz .Lxts_enc_ret + mov $out, %rdx + +.Lxts_enc_steal: + movzb ($inp), %eax + movzb -16(%rdx), %ecx + lea 1($inp), $inp + mov %al, -16(%rdx) + mov %cl, 0(%rdx) + lea 1(%rdx), %rdx + sub \$1,%ebx + jnz .Lxts_enc_steal + + movdqu -16($out), @XMM[0] + lea 0x20(%rbp), $arg1 + pxor @XMM[7], @XMM[0] + lea 0x20(%rbp), $arg2 + movdqa @XMM[0], 0x20(%rbp) + lea ($key), $arg3 + call asm_AES_encrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[7] + movdqu @XMM[7], -16($out) + +.Lxts_enc_ret: + lea (%rsp), %rax + pxor %xmm0, %xmm0 +.Lxts_enc_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + ja .Lxts_enc_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lxts_enc_epilogue: + ret +.size bsaes_xts_encrypt,.-bsaes_xts_encrypt + +.globl bsaes_xts_decrypt +.type bsaes_xts_decrypt,\@abi-omnipotent +.align 16 +bsaes_xts_decrypt: + mov %rsp, %rax +.Lxts_dec_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp), %rsp +___ +$code.=<<___ if ($win64); + mov 0xa0(%rsp),$arg5 # pull key2 + mov 0xa8(%rsp),$arg6 # pull ivp + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lxts_dec_body: +___ +$code.=<<___; + mov %rsp, %rbp # backup %rsp + mov $arg1, $inp # backup arguments + mov $arg2, $out + mov $arg3, $len + mov $arg4, $key + + lea ($arg6), $arg1 + lea 0x20(%rbp), $arg2 + lea ($arg5), $arg3 + call asm_AES_encrypt # generate initial tweak + + mov 240($key), %eax # rounds + mov $len, %rbx # backup $len + + mov %eax, %edx # rounds + shl \$7, %rax # 128 bytes per inner round key + sub \$`128-32`, %rax # size of bit-sliced key schedule + sub %rax, %rsp + + mov %rsp, %rax # pass key schedule + mov $key, %rcx # pass key + mov %edx, %r10d # pass rounds + call _bsaes_key_convert + pxor (%rsp), %xmm7 # fix up round 0 key + movdqa %xmm6, (%rax) # save last round key + movdqa %xmm7, (%rsp) + + xor %eax, %eax # if ($len%16) len-=16; + and \$-16, $len + test \$15, %ebx + setnz %al + shl \$4, %rax + sub %rax, $len + + sub \$0x80, %rsp # place for tweak[8] + movdqa 0x20(%rbp), @XMM[7] # initial tweak + + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + + sub \$0x80, $len + jc .Lxts_dec_short + jmp .Lxts_dec_loop + +.align 16 +.Lxts_dec_loop: +___ + for ($i=0;$i<7;$i++) { + $code.=<<___; + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + movdqa @XMM[7], @XMM[$i] + movdqa @XMM[7], `0x10*$i`(%rsp)# save tweak[$i] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] +___ + $code.=<<___ if ($i>=1); + movdqu `0x10*($i-1)`($inp), @XMM[8+$i-1] +___ + $code.=<<___ if ($i>=2); + pxor @XMM[8+$i-2], @XMM[$i-2]# input[] ^ tweak[] +___ + } +$code.=<<___; + movdqu 0x60($inp), @XMM[8+6] + pxor @XMM[8+5], @XMM[5] + movdqu 0x70($inp), @XMM[8+7] + lea 0x80($inp), $inp + movdqa @XMM[7], 0x70(%rsp) + pxor @XMM[8+6], @XMM[6] + lea 0x80(%rsp), %rax # pass key schedule + pxor @XMM[8+7], @XMM[7] + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + pxor 0x40(%rsp), @XMM[2] + movdqu @XMM[4], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[2], 0x40($out) + pxor 0x60(%rsp), @XMM[3] + movdqu @XMM[7], 0x50($out) + pxor 0x70(%rsp), @XMM[5] + movdqu @XMM[3], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + + movdqa 0x70(%rsp), @XMM[7] # prepare next iteration tweak + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] + + sub \$0x80,$len + jnc .Lxts_dec_loop + +.Lxts_dec_short: + add \$0x80, $len + jz .Lxts_dec_done +___ + for ($i=0;$i<7;$i++) { + $code.=<<___; + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + movdqa @XMM[7], @XMM[$i] + movdqa @XMM[7], `0x10*$i`(%rsp)# save tweak[$i] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] +___ + $code.=<<___ if ($i>=1); + movdqu `0x10*($i-1)`($inp), @XMM[8+$i-1] + cmp \$`0x10*$i`,$len + je .Lxts_dec_$i +___ + $code.=<<___ if ($i>=2); + pxor @XMM[8+$i-2], @XMM[$i-2]# input[] ^ tweak[] +___ + } +$code.=<<___; + movdqu 0x60($inp), @XMM[8+6] + pxor @XMM[8+5], @XMM[5] + movdqa @XMM[7], 0x70(%rsp) + lea 0x70($inp), $inp + pxor @XMM[8+6], @XMM[6] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + pxor 0x40(%rsp), @XMM[2] + movdqu @XMM[4], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[2], 0x40($out) + pxor 0x60(%rsp), @XMM[3] + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + lea 0x70($out), $out + + movdqa 0x70(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_6: + pxor @XMM[8+4], @XMM[4] + lea 0x60($inp), $inp + pxor @XMM[8+5], @XMM[5] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + pxor 0x40(%rsp), @XMM[2] + movdqu @XMM[4], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + lea 0x60($out), $out + + movdqa 0x60(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_5: + pxor @XMM[8+3], @XMM[3] + lea 0x50($inp), $inp + pxor @XMM[8+4], @XMM[4] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + pxor 0x40(%rsp), @XMM[2] + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + lea 0x50($out), $out + + movdqa 0x50(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_4: + pxor @XMM[8+2], @XMM[2] + lea 0x40($inp), $inp + pxor @XMM[8+3], @XMM[3] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + lea 0x40($out), $out + + movdqa 0x40(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_3: + pxor @XMM[8+1], @XMM[1] + lea 0x30($inp), $inp + pxor @XMM[8+2], @XMM[2] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + lea 0x30($out), $out + + movdqa 0x30(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_2: + pxor @XMM[8+0], @XMM[0] + lea 0x20($inp), $inp + pxor @XMM[8+1], @XMM[1] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + lea 0x20($out), $out + + movdqa 0x20(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_1: + pxor @XMM[0], @XMM[8] + lea 0x10($inp), $inp + movdqa @XMM[8], 0x20(%rbp) + lea 0x20(%rbp), $arg1 + lea 0x20(%rbp), $arg2 + lea ($key), $arg3 + call asm_AES_decrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[0] # ^= tweak[] + #pxor @XMM[8], @XMM[0] + #lea 0x80(%rsp), %rax # pass key schedule + #mov %edx, %r10d # pass rounds + #call _bsaes_decrypt8 + #pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + movdqu @XMM[0], 0x00($out) # write output + lea 0x10($out), $out + + movdqa 0x10(%rsp), @XMM[7] # next iteration tweak + +.Lxts_dec_done: + and \$15, %ebx + jz .Lxts_dec_ret + + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp + pshufd \$0x13, $twtmp, $twres + movdqa @XMM[7], @XMM[6] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + movdqu ($inp), @XMM[0] + pxor $twres, @XMM[7] + + lea 0x20(%rbp), $arg1 + pxor @XMM[7], @XMM[0] + lea 0x20(%rbp), $arg2 + movdqa @XMM[0], 0x20(%rbp) + lea ($key), $arg3 + call asm_AES_decrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[7] + mov $out, %rdx + movdqu @XMM[7], ($out) + +.Lxts_dec_steal: + movzb 16($inp), %eax + movzb (%rdx), %ecx + lea 1($inp), $inp + mov %al, (%rdx) + mov %cl, 16(%rdx) + lea 1(%rdx), %rdx + sub \$1,%ebx + jnz .Lxts_dec_steal + + movdqu ($out), @XMM[0] + lea 0x20(%rbp), $arg1 + pxor @XMM[6], @XMM[0] + lea 0x20(%rbp), $arg2 + movdqa @XMM[0], 0x20(%rbp) + lea ($key), $arg3 + call asm_AES_decrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[6] + movdqu @XMM[6], ($out) + +.Lxts_dec_ret: + lea (%rsp), %rax + pxor %xmm0, %xmm0 +.Lxts_dec_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + ja .Lxts_dec_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lxts_dec_epilogue: + ret +.size bsaes_xts_decrypt,.-bsaes_xts_decrypt +___ +} +$code.=<<___; +.type _bsaes_const,\@object +.align 64 +_bsaes_const: +.LM0ISR: # InvShiftRows constants + .quad 0x0a0e0206070b0f03, 0x0004080c0d010509 +.LISRM0: + .quad 0x01040b0e0205080f, 0x0306090c00070a0d +.LISR: + .quad 0x0504070602010003, 0x0f0e0d0c080b0a09 +.LBS0: # bit-slice constants + .quad 0x5555555555555555, 0x5555555555555555 +.LBS1: + .quad 0x3333333333333333, 0x3333333333333333 +.LBS2: + .quad 0x0f0f0f0f0f0f0f0f, 0x0f0f0f0f0f0f0f0f +.LSR: # shiftrows constants + .quad 0x0504070600030201, 0x0f0e0d0c0a09080b +.LSRM0: + .quad 0x0304090e00050a0f, 0x01060b0c0207080d +.LM0SR: + .quad 0x0a0e02060f03070b, 0x0004080c05090d01 +.LSWPUP: # byte-swap upper dword + .quad 0x0706050403020100, 0x0c0d0e0f0b0a0908 +.LSWPUPM0SR: + .quad 0x0a0d02060c03070b, 0x0004080f05090e01 +.LADD1: # counter increment constants + .quad 0x0000000000000000, 0x0000000100000000 +.LADD2: + .quad 0x0000000000000000, 0x0000000200000000 +.LADD3: + .quad 0x0000000000000000, 0x0000000300000000 +.LADD4: + .quad 0x0000000000000000, 0x0000000400000000 +.LADD5: + .quad 0x0000000000000000, 0x0000000500000000 +.LADD6: + .quad 0x0000000000000000, 0x0000000600000000 +.LADD7: + .quad 0x0000000000000000, 0x0000000700000000 +.LADD8: + .quad 0x0000000000000000, 0x0000000800000000 +.Lxts_magic: + .long 0x87,0,1,0 +.Lmasks: + .quad 0x0101010101010101, 0x0101010101010101 + .quad 0x0202020202020202, 0x0202020202020202 + .quad 0x0404040404040404, 0x0404040404040404 + .quad 0x0808080808080808, 0x0808080808080808 +.LM0: + .quad 0x02060a0e03070b0f, 0x0004080c0105090d +.L63: + .quad 0x6363636363636363, 0x6363636363636363 +.asciz "Bit-sliced AES for x86_64/SSSE3, Emilia Käsper, Peter Schwabe, Andy Polyakov" +.align 64 +.size _bsaes_const,.-_bsaes_const +___ + +# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, +# CONTEXT *context,DISPATCHER_CONTEXT *disp) +if ($win64) { +$rec="%rcx"; +$frame="%rdx"; +$context="%r8"; +$disp="%r9"; + +$code.=<<___; +.extern __imp_RtlVirtualUnwind +.type se_handler,\@abi-omnipotent +.align 16 +se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + mov 8($disp),%rsi # disp->ImageBase + mov 56($disp),%r11 # disp->HandlerData + + mov 0(%r11),%r10d # HandlerData[0] + lea (%rsi,%r10),%r10 # prologue label + cmp %r10,%rbx # context->Rip<prologue label + jb .Lin_prologue + + mov 152($context),%rax # pull context->Rsp + + mov 4(%r11),%r10d # HandlerData[1] + lea (%rsi,%r10),%r10 # epilogue label + cmp %r10,%rbx # context->Rip>=epilogue label + jae .Lin_prologue + + mov 160($context),%rax # pull context->Rbp + + lea 0x40(%rax),%rsi # %xmm save area + lea 512($context),%rdi # &context.Xmm6 + mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) + .long 0xa548f3fc # cld; rep movsq + lea 0xa0(%rax),%rax # adjust stack pointer + + mov 0x70(%rax),%rbp + mov 0x68(%rax),%rbx + mov 0x60(%rax),%r12 + mov 0x58(%rax),%r13 + mov 0x50(%rax),%r14 + mov 0x48(%rax),%r15 + lea 0x78(%rax),%rax # adjust stack pointer + mov %rbx,144($context) # restore context->Rbx + mov %rbp,160($context) # restore context->Rbp + mov %r12,216($context) # restore context->R12 + mov %r13,224($context) # restore context->R13 + mov %r14,232($context) # restore context->R14 + mov %r15,240($context) # restore context->R15 + +.Lin_prologue: + mov %rax,152($context) # restore context->Rsp + + mov 40($disp),%rdi # disp->ContextRecord + mov $context,%rsi # context + mov \$`1232/8`,%ecx # sizeof(CONTEXT) + .long 0xa548f3fc # cld; rep movsq + + mov $disp,%rsi + xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER + mov 8(%rsi),%rdx # arg2, disp->ImageBase + mov 0(%rsi),%r8 # arg3, disp->ControlPc + mov 16(%rsi),%r9 # arg4, disp->FunctionEntry + mov 40(%rsi),%r10 # disp->ContextRecord + lea 56(%rsi),%r11 # &disp->HandlerData + lea 24(%rsi),%r12 # &disp->EstablisherFrame + mov %r10,32(%rsp) # arg5 + mov %r11,40(%rsp) # arg6 + mov %r12,48(%rsp) # arg7 + mov %rcx,56(%rsp) # arg8, (NULL) + call *__imp_RtlVirtualUnwind(%rip) + + mov \$1,%eax # ExceptionContinueSearch + add \$64,%rsp + popfq + pop %r15 + pop %r14 + pop %r13 + pop %r12 + pop %rbp + pop %rbx + pop %rdi + pop %rsi + ret +.size se_handler,.-se_handler + +.section .pdata +.align 4 +___ +$code.=<<___ if ($ecb); + .rva .Lecb_enc_prologue + .rva .Lecb_enc_epilogue + .rva .Lecb_enc_info + + .rva .Lecb_dec_prologue + .rva .Lecb_dec_epilogue + .rva .Lecb_dec_info +___ +$code.=<<___; + .rva .Lcbc_dec_prologue + .rva .Lcbc_dec_epilogue + .rva .Lcbc_dec_info + + .rva .Lctr_enc_prologue + .rva .Lctr_enc_epilogue + .rva .Lctr_enc_info + + .rva .Lxts_enc_prologue + .rva .Lxts_enc_epilogue + .rva .Lxts_enc_info + + .rva .Lxts_dec_prologue + .rva .Lxts_dec_epilogue + .rva .Lxts_dec_info + +.section .xdata +.align 8 +___ +$code.=<<___ if ($ecb); +.Lecb_enc_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lecb_enc_body,.Lecb_enc_epilogue # HandlerData[] +.Lecb_dec_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lecb_dec_body,.Lecb_dec_epilogue # HandlerData[] +___ +$code.=<<___; +.Lcbc_dec_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lcbc_dec_body,.Lcbc_dec_epilogue # HandlerData[] +.Lctr_enc_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lctr_enc_body,.Lctr_enc_epilogue # HandlerData[] +.Lxts_enc_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[] +.Lxts_dec_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[] +___ +} + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; + +print $code; + +close STDOUT; |