-#!/usr/bin/env perl
+#! /usr/bin/env perl
+# Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the Apache License 2.0 (the "License"). You may not use
+# this file except in compliance with the License. You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
###################################################################
### AES-128 [originally in CTR mode] ###
# Emilia's this(*) difference
#
# Core 2 9.30 8.69 +7%
-# Nehalem(**) 7.63 6.98 +9%
-# Atom 17.1 17.4 -2%(***)
+# Nehalem(**) 7.63 6.88 +11%
+# Atom 17.1 16.4 +4%
+# Silvermont - 12.9
+# Goldmont - 8.85
#
# (*) Comparison is not completely fair, because "this" is ECB,
# i.e. no extra processing such as counter values calculation
# (**) 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
# function is:
#
# conversion conversion/8x block
-# Core 2 410 0.37
-# Nehalem 310 0.35
-# Atom 570 0.26
+# Core 2 240 0.22
+# Nehalem 180 0.20
+# Atom 430 0.20
#
# The ratio values mean that 128-byte blocks will be processed
-# 21-27% slower, 256-byte blocks - 12-16%, 384-byte blocks - 8-11%,
+# 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,
# 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 9.98
+# Nehalem 7.80
+# Atom 17.9
+# Silvermont 14.0
+# Goldmont 10.2
+#
+# 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;
( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
die "can't locate x86_64-xlate.pl";
-open STDOUT,"| $^X $xlate $flavour $output";
+open OUT,"| \"$^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 {
+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];
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
+# output in lsb > [b6, b5, b0, b3, b7, b1, b4, b2] < msb
my @b=@_[0..7];
$code.=<<___;
pxor @b[6], @b[5]
pxor @b[1], @b[2]
- pxor @b[0], @b[5]
+ pxor @b[0], @b[3]
pxor @b[2], @b[6]
- pxor @b[0], @b[3]
+ pxor @b[0], @b[5]
pxor @b[3], @b[6]
pxor @b[7], @b[3]
___
}
+sub InvSbox {
+# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb
+# output in lsb > [b0, b1, b6, b4, b2, b7, b3, b5] < msb
+my @b=@_[0..7];
+my @t=@_[8..11];
+my @s=@_[12..15];
+ &InvInBasisChange (@b);
+ &Inv_GF256 (@b[5,1,2,6,3,7,0,4],@t,@s);
+ &InvOutBasisChange (@b[3,7,0,4,5,1,2,6]);
+}
+
+sub InvInBasisChange { # OutBasisChange in reverse
+my @b=@_[5,1,2,6,3,7,0,4];
+$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) *
pxor @s[0], @t[3]
pxor @s[1], @t[2]
pxor @s[2], @t[1]
- pxor @s[3], @t[0]
+ pxor @s[3], @t[0]
#Inv_GF16 \t0, \t1, \t2, \t3, \s0, \s1, \s2, \s3
# AES linear components
-sub shiftrows {
+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]
+ pshufb $mask,@x[0]
+ pshufb $mask,@x[1]
pxor 0x40($key),@x[4]
- pshufb $mask,@x[3]
pxor 0x50($key),@x[5]
- pshufb $mask,@x[4]
+ pshufb $mask,@x[2]
+ pshufb $mask,@x[3]
pxor 0x60($key),@x[6]
- pshufb $mask,@x[5]
pxor 0x70($key),@x[7]
+ pshufb $mask,@x[4]
+ pshufb $mask,@x[5]
pshufb $mask,@x[6]
- lea 0x80($key),$key
pshufb $mask,@x[7]
+ lea 0x80($key),$key
___
}
-sub mixcolumns {
+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
$code.=<<___;
pshufd \$0x93, @x[0], @t[0] # x0 <<< 32
pshufd \$0x93, @x[1], @t[1]
pxor @t[4], @t[0]
pshufd \$0x4E, @x[2], @x[6]
pxor @t[5], @t[1]
-
+___
+$code.=<<___ if (!$inv);
pxor @t[3], @x[4]
pxor @t[7], @x[5]
pxor @t[6], @x[3]
pxor @t[2], @x[6]
movdqa @t[1], @x[7]
___
+$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
$code.=<<___;
movdqa 0x30($const),@t[0] # .LSR
___
- &shiftrows (@b,@t[0]);
- &sbox (@b,@t);
- &mixcolumns (@b[0,1,4,6,3,7,2,5],@t);
+ &ShiftRows (@b,@t[0]);
+ &Sbox (@b,@t);
+ &MixColumns (@b[0,1,4,6,3,7,2,5],@t);
}
sub aesenclast { # not used
$code.=<<___;
movdqa 0x40($const),@t[0] # .LSRM0
___
- &shiftrows (@b,@t[0]);
- &sbox (@b,@t);
+ &ShiftRows (@b,@t[0]);
+ &Sbox (@b,@t);
$code.=<<___
pxor 0x00($key),@b[0]
pxor 0x10($key),@b[1]
$code.=<<___;
.text
-.extern AES_encrypt
+.extern asm_AES_encrypt
+.extern asm_AES_decrypt
.type _bsaes_encrypt8,\@abi-omnipotent
.align 64
movdqa ($key), @XMM[9] # round 0 key
lea 0x10($key), $key
- movdqa 0x60($const), @XMM[8] # .LM0SR
+ 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]
+ pshufb @XMM[8], @XMM[0]
+ pshufb @XMM[8], @XMM[1]
pxor @XMM[9], @XMM[4]
- pshufb @XMM[8], @XMM[3]
pxor @XMM[9], @XMM[5]
- pshufb @XMM[8], @XMM[4]
+ pshufb @XMM[8], @XMM[2]
+ pshufb @XMM[8], @XMM[3]
pxor @XMM[9], @XMM[6]
- pshufb @XMM[8], @XMM[5]
pxor @XMM[9], @XMM[7]
+ pshufb @XMM[8], @XMM[4]
+ pshufb @XMM[8], @XMM[5]
pshufb @XMM[8], @XMM[6]
pshufb @XMM[8], @XMM[7]
_bsaes_encrypt8_bitslice:
.align 16
.Lenc_loop:
___
- &shiftrows (@XMM[0..7, 8]);
+ &ShiftRows (@XMM[0..7, 8]);
$code.=".Lenc_sbox:\n";
- &sbox (@XMM[0..7, 8..15]);
+ &Sbox (@XMM[0..7, 8..15]);
$code.=<<___;
dec $rounds
jl .Lenc_done
___
- &mixcolumns (@XMM[0,1,4,6,3,7,2,5, 8..15]);
+ &MixColumns (@XMM[0,1,4,6,3,7,2,5, 8..15]);
$code.=<<___;
movdqa 0x30($const), @XMM[8] # .LSR
jnz .Lenc_loop
&bitslice (@XMM[0,1,4,6,3,7,2,5, 8..11]);
$code.=<<___;
movdqa ($key), @XMM[8] # last round key
- pxor @XMM[8], @XMM[0]
- pxor @XMM[8], @XMM[1]
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]
+ pxor @XMM[9], @XMM[2]
+ pxor @XMM[9], @XMM[3]
+ pshufb @XMM[8], @XMM[0]
+ pshufb @XMM[8], @XMM[1]
+ pxor @XMM[9], @XMM[4]
+ pxor @XMM[9], @XMM[5]
+ pshufb @XMM[8], @XMM[2]
+ pshufb @XMM[8], @XMM[3]
+ pxor @XMM[9], @XMM[6]
+ pxor @XMM[9], @XMM[7]
+ pshufb @XMM[8], @XMM[4]
+ pshufb @XMM[8], @XMM[5]
+ 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
___
}
{
}
$code.=<<___;
-.type _bsaes_enc_key_convert,\@abi-omnipotent
+.type _bsaes_key_convert,\@abi-omnipotent
.align 16
-_bsaes_enc_key_convert:
- lea .LBS1(%rip), $const
+_bsaes_key_convert:
+ lea .Lmasks(%rip), $const
movdqu ($inp), %xmm7 # load round 0 key
- movdqa -0x10($const), %xmm8 # .LBS0
- movdqa 0x00($const), %xmm9 # .LBS1
- movdqa 0x10($const), %xmm10 # .LBS2
- movdqa 0x40($const), %xmm13 # .LM0
- movdqa 0x60($const),%xmm14 # .LNOT
-
- movdqu 0x10($inp), %xmm6 # load round 1 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 $rounds
jmp .Lkey_loop
.align 16
.Lkey_loop:
- pshufb %xmm13, %xmm6
- movdqa %xmm6, %xmm7
-___
- &bitslice_key (map("%xmm$_",(0..7, 8..12)));
-$code.=<<___;
- pxor %xmm14, %xmm5 # "pnot"
- pxor %xmm14, %xmm6
- pxor %xmm14, %xmm0
- pxor %xmm14, %xmm1
- lea 0x10($inp), $inp
- movdqa %xmm0, 0x00($out) # write bit-sliced round key
- movdqa %xmm1, 0x10($out)
- movdqa %xmm2, 0x20($out)
- movdqa %xmm3, 0x30($out)
- movdqa %xmm4, 0x40($out)
- movdqa %xmm5, 0x50($out)
- movdqa %xmm6, 0x60($out)
- movdqa %xmm7, 0x70($out)
+ pshufb %xmm4, %xmm6 # .LM0
+
+ movdqa %xmm0, %xmm8
+ movdqa %xmm1, %xmm9
+
+ pand %xmm6, %xmm8
+ pand %xmm6, %xmm9
+ movdqa %xmm2, %xmm10
+ pcmpeqb %xmm0, %xmm8
+ psllq \$4, %xmm0 # 0x10...
+ movdqa %xmm3, %xmm11
+ pcmpeqb %xmm1, %xmm9
+ psllq \$4, %xmm1 # 0x20...
+
+ pand %xmm6, %xmm10
+ pand %xmm6, %xmm11
+ movdqa %xmm0, %xmm12
+ pcmpeqb %xmm2, %xmm10
+ psllq \$4, %xmm2 # 0x40...
+ movdqa %xmm1, %xmm13
+ pcmpeqb %xmm3, %xmm11
+ psllq \$4, %xmm3 # 0x80...
+
+ movdqa %xmm2, %xmm14
+ movdqa %xmm3, %xmm15
+ pxor %xmm5, %xmm8 # "pnot"
+ pxor %xmm5, %xmm9
+
+ pand %xmm6, %xmm12
+ pand %xmm6, %xmm13
+ movdqa %xmm8, 0x00($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
- movdqu ($inp), %xmm6 # load next round key
dec $rounds
jnz .Lkey_loop
- pxor 0x70($const), %xmm6 # .L63
- movdqa %xmm6, ($out) # save last round key
+ movdqa 0x50($const), %xmm7 # .L63
+ #movdqa %xmm6, ($out) # don't save last round key
ret
-.size _bsaes_enc_key_convert,.-_bsaes_enc_key_convert
+.size _bsaes_key_convert,.-_bsaes_key_convert
___
}
-if (1 && !$win64) { # following two functions are unsupported interface
+if (0 && !$win64) { # following four functions are unsupported interface
# used for benchmarking...
$code.=<<___;
.globl bsaes_enc_key_convert
mov 240($inp),%r10d # pass rounds
mov $inp,%rcx # pass key
mov $out,%rax # pass key schedule
- call _bsaes_enc_key_convert
+ call _bsaes_key_convert
+ pxor %xmm6,%xmm7 # fix up last round key
+ movdqa %xmm7,(%rax) # save last round key
ret
.size bsaes_enc_key_convert,.-bsaes_enc_key_convert
ja .Lenc128_loop
ret
.size bsaes_encrypt_128,.-bsaes_encrypt_128
+
+.globl bsaes_dec_key_convert
+.type bsaes_dec_key_convert,\@function,2
+.align 16
+bsaes_dec_key_convert:
+ mov 240($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) = $win64 ? ("%rcx","%rdx","%r8","%r9","%r10")
- : ("%rdi","%rsi","%rdx","%rcx","%r8");
+my ($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:
+.cfi_startproc
+ mov %rsp, %rax
+.Lecb_enc_prologue:
push %rbp
+.cfi_push %rbp
push %rbx
+.cfi_push %rbx
push %r12
+.cfi_push %r12
push %r13
+.cfi_push %r13
push %r14
+.cfi_push %r14
push %r15
+.cfi_push %r15
lea -0x48(%rsp),%rsp
+.cfi_adjust_cfa_offset 0x48
___
$code.=<<___ if ($win64);
lea -0xa0(%rsp), %rsp
___
$code.=<<___;
mov %rsp,%rbp # backup %rsp
+.cfi_def_cfa_register %rbp
mov 240($arg4),%eax # rounds
mov $arg1,$inp # backup arguments
mov $arg2,$out
mov %rsp,%rax # pass key schedule
mov $key,%rcx # pass key
mov %ebx,%r10d # pass rounds
- call _bsaes_enc_key_convert
+ call _bsaes_key_convert
+ pxor %xmm6,%xmm7 # fix up last round key
+ movdqa %xmm7,(%rax) # save last round key
sub \$8,$len
.Lecb_enc_loop:
lea ($inp), $arg1
lea ($out), $arg2
lea ($key), $arg3
- call AES_encrypt
+ call asm_AES_encrypt
lea 16($inp), $inp
lea 16($out), $out
dec $len
cmp %rax, %rbp
jb .Lecb_enc_bzero
- lea (%rbp),%rsp # restore %rsp
+ lea 0x78(%rbp),%rax
+.cfi_def_cfa %rax,8
___
$code.=<<___ if ($win64);
movaps 0x40(%rbp), %xmm6
movaps 0xb0(%rbp), %xmm13
movaps 0xc0(%rbp), %xmm14
movaps 0xd0(%rbp), %xmm15
- lea 0xa0(%rbp), %rsp
+ lea 0xa0(%rax), %rax
+.Lecb_enc_tail:
___
$code.=<<___;
- mov 0x48(%rsp), %r15
- mov 0x50(%rsp), %r14
- mov 0x58(%rsp), %r13
- mov 0x60(%rsp), %r12
- mov 0x68(%rsp), %rbx
- mov 0x70(%rsp), %rbp
- lea 0x78(%rsp), %rsp
+ mov -48(%rax), %r15
+.cfi_restore %r15
+ mov -40(%rax), %r14
+.cfi_restore %r14
+ mov -32(%rax), %r13
+.cfi_restore %r13
+ mov -24(%rax), %r12
+.cfi_restore %r12
+ mov -16(%rax), %rbx
+.cfi_restore %rbx
+ mov -8(%rax), %rbp
+.cfi_restore %rbp
+ lea (%rax), %rsp # restore %rsp
+.cfi_def_cfa_register %rsp
.Lecb_enc_epilogue:
ret
+.cfi_endproc
.size bsaes_ecb_encrypt_blocks,.-bsaes_ecb_encrypt_blocks
-.globl bsaes_ctr32_encrypt_blocks
-.type bsaes_ctr32_encrypt_blocks,\@abi-omnipotent
+.globl bsaes_ecb_decrypt_blocks
+.type bsaes_ecb_decrypt_blocks,\@abi-omnipotent
.align 16
-bsaes_ctr32_encrypt_blocks:
+bsaes_ecb_decrypt_blocks:
+.cfi_startproc
+ mov %rsp, %rax
+.Lecb_dec_prologue:
push %rbp
+.cfi_push %rbp
push %rbx
+.cfi_push %rbx
push %r12
+.cfi_push %r12
push %r13
+.cfi_push %r13
push %r14
+.cfi_push %r14
push %r15
- lea -0x48(%rsp), %rsp
+.cfi_push %r15
+ lea -0x48(%rsp),%rsp
+.cfi_adjust_cfa_offset 0x48
___
$code.=<<___ if ($win64);
- mov 0xa0(%rsp),$arg5 # pull ivp
lea -0xa0(%rsp), %rsp
movaps %xmm6, 0x40(%rsp)
movaps %xmm7, 0x50(%rsp)
movaps %xmm13, 0xb0(%rsp)
movaps %xmm14, 0xc0(%rsp)
movaps %xmm15, 0xd0(%rsp)
-.Lctr_enc_body:
+.Lecb_dec_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, $arg3
- jb .Lctr_enc_short
+ mov %rsp,%rbp # backup %rsp
+.cfi_def_cfa_register %rbp
+ mov 240($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 # rounds
- shl \$7, %rax # 128 bytes per inner round key
- sub \$`128-32`, %rax # size of bit-sliced key schedule
- sub %rax, %rsp
+ 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
- mov $key, %rcx # pass key
- mov %ebx, %r10d # pass rounds
- call _bsaes_enc_key_convert
+ movdqu 0x60($inp), @XMM[6]
+ mov %ebx,%r10d # pass rounds
+ movdqu 0x70($inp), @XMM[7]
+ lea 0x80($inp), $inp
- movdqa (%rsp), @XMM[9] # load round0 key
- lea .LADD1(%rip), %r11
- movdqa 0x20(%rbp), @XMM[0] # counter copy
- movdqa -0x20(%r11), @XMM[8] # .LSWPUP
- pshufb @XMM[8], @XMM[9] # byte swap upper part
- pshufb @XMM[8], @XMM[0]
- movdqa @XMM[9], (%rsp) # save adjusted round0 key
- jmp .Lctr_enc_loop
-.align 16
-.Lctr_enc_loop:
- movdqa @XMM[0], 0x20(%rbp) # save counter
- movdqa @XMM[0], @XMM[1] # prepare 8 counter values
- movdqa @XMM[0], @XMM[2]
- paddd 0x00(%r11), @XMM[1] # .LADD1
- movdqa @XMM[0], @XMM[3]
- paddd 0x10(%r11), @XMM[2] # .LADD2
- movdqa @XMM[0], @XMM[4]
- paddd 0x20(%r11), @XMM[3] # .LADD3
- movdqa @XMM[0], @XMM[5]
- paddd 0x30(%r11), @XMM[4] # .LADD4
- movdqa @XMM[0], @XMM[6]
- paddd 0x40(%r11), @XMM[5] # .LADD5
- movdqa @XMM[0], @XMM[7]
- paddd 0x50(%r11), @XMM[6] # .LADD6
- paddd 0x60(%r11), @XMM[7] # .LADD7
+ call _bsaes_decrypt8
+
+ movdqu @XMM[0], 0x00($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 $len
+ jnz .Lecb_dec_short
+
+.Lecb_dec_done:
+ lea (%rsp),%rax
+ pxor %xmm0, %xmm0
+.Lecb_dec_bzero: # wipe key schedule [if any]
+ movdqa %xmm0, 0x00(%rax)
+ movdqa %xmm0, 0x10(%rax)
+ lea 0x20(%rax), %rax
+ cmp %rax, %rbp
+ jb .Lecb_dec_bzero
+
+ lea 0x78(%rbp),%rax
+.cfi_def_cfa %rax,8
+___
+$code.=<<___ if ($win64);
+ movaps 0x40(%rbp), %xmm6
+ movaps 0x50(%rbp), %xmm7
+ movaps 0x60(%rbp), %xmm8
+ movaps 0x70(%rbp), %xmm9
+ movaps 0x80(%rbp), %xmm10
+ movaps 0x90(%rbp), %xmm11
+ movaps 0xa0(%rbp), %xmm12
+ movaps 0xb0(%rbp), %xmm13
+ movaps 0xc0(%rbp), %xmm14
+ movaps 0xd0(%rbp), %xmm15
+ lea 0xa0(%rax), %rax
+.Lecb_dec_tail:
+___
+$code.=<<___;
+ mov -48(%rax), %r15
+.cfi_restore %r15
+ mov -40(%rax), %r14
+.cfi_restore %r14
+ mov -32(%rax), %r13
+.cfi_restore %r13
+ mov -24(%rax), %r12
+.cfi_restore %r12
+ mov -16(%rax), %rbx
+.cfi_restore %rbx
+ mov -8(%rax), %rbp
+.cfi_restore %rbp
+ lea (%rax), %rsp # restore %rsp
+.cfi_def_cfa_register %rsp
+.Lecb_dec_epilogue:
+ ret
+.cfi_endproc
+.size bsaes_ecb_decrypt_blocks,.-bsaes_ecb_decrypt_blocks
+___
+}
+$code.=<<___;
+.extern asm_AES_cbc_encrypt
+.globl bsaes_cbc_encrypt
+.type bsaes_cbc_encrypt,\@abi-omnipotent
+.align 16
+bsaes_cbc_encrypt:
+.cfi_startproc
+___
+$code.=<<___ if ($win64);
+ mov 48(%rsp),$arg6 # pull direction flag
+___
+$code.=<<___;
+ cmp \$0,$arg6
+ jne asm_AES_cbc_encrypt
+ cmp \$128,$arg3
+ jb asm_AES_cbc_encrypt
+
+ mov %rsp, %rax
+.Lcbc_dec_prologue:
+ push %rbp
+.cfi_push %rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+ lea -0x48(%rsp), %rsp
+.cfi_adjust_cfa_offset 0x48
+___
+$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:
+___
+$code.=<<___;
+ mov %rsp, %rbp # backup %rsp
+.cfi_def_cfa_register %rbp
+ mov 240($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 0x78(%rbp),%rax
+.cfi_def_cfa %rax,8
+___
+$code.=<<___ if ($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(%rax), %rax
+.Lcbc_dec_tail:
+___
+$code.=<<___;
+ mov -48(%rax), %r15
+.cfi_restore %r15
+ mov -40(%rax), %r14
+.cfi_restore %r14
+ mov -32(%rax), %r13
+.cfi_restore %r13
+ mov -24(%rax), %r12
+.cfi_restore %r12
+ mov -16(%rax), %rbx
+.cfi_restore %rbx
+ mov -8(%rax), %rbp
+.cfi_restore %rbp
+ lea (%rax), %rsp # restore %rsp
+.cfi_def_cfa_register %rsp
+.Lcbc_dec_epilogue:
+ ret
+.cfi_endproc
+.size bsaes_cbc_encrypt,.-bsaes_cbc_encrypt
+
+.globl bsaes_ctr32_encrypt_blocks
+.type bsaes_ctr32_encrypt_blocks,\@abi-omnipotent
+.align 16
+bsaes_ctr32_encrypt_blocks:
+.cfi_startproc
+ mov %rsp, %rax
+.Lctr_enc_prologue:
+ push %rbp
+.cfi_push %rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+ lea -0x48(%rsp), %rsp
+.cfi_adjust_cfa_offset 0x48
+___
+$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:
+___
+$code.=<<___;
+ mov %rsp, %rbp # backup %rsp
+.cfi_def_cfa_register %rbp
+ movdqu ($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 $key, %rcx # pass key
+ mov %ebx, %r10d # pass rounds
+ call _bsaes_key_convert
+ pxor %xmm6,%xmm7 # fix up last round key
+ movdqa %xmm7,(%rax) # save last round key
+
+ movdqa (%rsp), @XMM[9] # load round0 key
+ lea .LADD1(%rip), %r11
+ movdqa 0x20(%rbp), @XMM[0] # counter copy
+ movdqa -0x20(%r11), @XMM[8] # .LSWPUP
+ pshufb @XMM[8], @XMM[9] # byte swap upper part
+ pshufb @XMM[8], @XMM[0]
+ movdqa @XMM[9], (%rsp) # save adjusted round0 key
+ jmp .Lctr_enc_loop
+.align 16
+.Lctr_enc_loop:
+ movdqa @XMM[0], 0x20(%rbp) # save counter
+ movdqa @XMM[0], @XMM[1] # prepare 8 counter values
+ movdqa @XMM[0], @XMM[2]
+ paddd 0x00(%r11), @XMM[1] # .LADD1
+ movdqa @XMM[0], @XMM[3]
+ paddd 0x10(%r11), @XMM[2] # .LADD2
+ movdqa @XMM[0], @XMM[4]
+ paddd 0x20(%r11), @XMM[3] # .LADD3
+ movdqa @XMM[0], @XMM[5]
+ paddd 0x30(%r11), @XMM[4] # .LADD4
+ movdqa @XMM[0], @XMM[6]
+ paddd 0x40(%r11), @XMM[5] # .LADD5
+ movdqa @XMM[0], @XMM[7]
+ paddd 0x50(%r11), @XMM[6] # .LADD6
+ paddd 0x60(%r11), @XMM[7] # .LADD7
# Borrow prologue from _bsaes_encrypt8 to use the opportunity
# to flip byte order in 32-bit counter
movdqa -0x10(%r11), @XMM[8] # .LSWPUPM0SR
pxor @XMM[9], @XMM[0] # xor with round0 key
pxor @XMM[9], @XMM[1]
- pshufb @XMM[8], @XMM[0]
pxor @XMM[9], @XMM[2]
- pshufb @XMM[8], @XMM[1]
pxor @XMM[9], @XMM[3]
- pshufb @XMM[8], @XMM[2]
+ pshufb @XMM[8], @XMM[0]
+ pshufb @XMM[8], @XMM[1]
pxor @XMM[9], @XMM[4]
- pshufb @XMM[8], @XMM[3]
pxor @XMM[9], @XMM[5]
- pshufb @XMM[8], @XMM[4]
+ pshufb @XMM[8], @XMM[2]
+ pshufb @XMM[8], @XMM[3]
pxor @XMM[9], @XMM[6]
- pshufb @XMM[8], @XMM[5]
pxor @XMM[9], @XMM[7]
+ pshufb @XMM[8], @XMM[4]
+ pshufb @XMM[8], @XMM[5]
pshufb @XMM[8], @XMM[6]
- lea .LBS0(%rip), %r11 # constants table
pshufb @XMM[8], @XMM[7]
+ lea .LBS0(%rip), %r11 # constants table
mov %ebx,%r10d # pass rounds
- call _bsaes_encrypt8_bitslice
+ call _bsaes_encrypt8_bitslice
+
+ sub \$8,$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 $len
+ jnz .Lctr_enc_short
+
+.Lctr_enc_done:
+ lea (%rsp), %rax
+ pxor %xmm0, %xmm0
+.Lctr_enc_bzero: # wipe key schedule [if any]
+ movdqa %xmm0, 0x00(%rax)
+ movdqa %xmm0, 0x10(%rax)
+ lea 0x20(%rax), %rax
+ cmp %rax, %rbp
+ ja .Lctr_enc_bzero
+
+ lea 0x78(%rbp),%rax
+.cfi_def_cfa %rax,8
+___
+$code.=<<___ if ($win64);
+ movaps 0x40(%rbp), %xmm6
+ movaps 0x50(%rbp), %xmm7
+ movaps 0x60(%rbp), %xmm8
+ movaps 0x70(%rbp), %xmm9
+ movaps 0x80(%rbp), %xmm10
+ movaps 0x90(%rbp), %xmm11
+ movaps 0xa0(%rbp), %xmm12
+ movaps 0xb0(%rbp), %xmm13
+ movaps 0xc0(%rbp), %xmm14
+ movaps 0xd0(%rbp), %xmm15
+ lea 0xa0(%rax), %rax
+.Lctr_enc_tail:
+___
+$code.=<<___;
+ mov -48(%rax), %r15
+.cfi_restore %r15
+ mov -40(%rax), %r14
+.cfi_restore %r14
+ mov -32(%rax), %r13
+.cfi_restore %r13
+ mov -24(%rax), %r12
+.cfi_restore %r12
+ mov -16(%rax), %rbx
+.cfi_restore %rbx
+ mov -8(%rax), %rbp
+.cfi_restore %rbp
+ lea (%rax), %rsp # restore %rsp
+.cfi_def_cfa_register %rsp
+.Lctr_enc_epilogue:
+ ret
+.cfi_endproc
+.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:
+.cfi_startproc
+ mov %rsp, %rax
+.Lxts_enc_prologue:
+ push %rbp
+.cfi_push %rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+ lea -0x48(%rsp), %rsp
+.cfi_adjust_cfa_offset 0x48
+___
+$code.=<<___ if ($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
+.cfi_def_cfa_register %rbp
+ 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), $inp
+ pxor @XMM[8+3], @XMM[3]
+ lea 0x80(%rsp), %rax # pass key schedule
+ mov %edx, %r10d # pass rounds
- sub \$8,$len
- jc .Lctr_enc_loop_done
+ call _bsaes_encrypt8
- 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($out) # write output
- pxor @XMM[10], @XMM[4]
+ pxor 0x00(%rsp), @XMM[0] # ^= tweak[]
+ pxor 0x10(%rsp), @XMM[1]
+ movdqu @XMM[0], 0x00($out) # write output
+ pxor 0x20(%rsp), @XMM[4]
movdqu @XMM[1], 0x10($out)
- pxor @XMM[11], @XMM[6]
+ pxor 0x30(%rsp), @XMM[6]
movdqu @XMM[4], 0x20($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]
+ 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 0x78(%rbp),%rax
+.cfi_def_cfa %rax,8
+___
+$code.=<<___ if ($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(%rax), %rax
+.Lxts_enc_tail:
+___
+$code.=<<___;
+ mov -48(%rax), %r15
+.cfi_restore %r15
+ mov -40(%rax), %r14
+.cfi_restore %r14
+ mov -32(%rax), %r13
+.cfi_restore %r13
+ mov -24(%rax), %r12
+.cfi_restore %r12
+ mov -16(%rax), %rbx
+.cfi_restore %rbx
+ mov -8(%rax), %rbp
+.cfi_restore %rbp
+ lea (%rax), %rsp # restore %rsp
+.cfi_def_cfa_register %rsp
+.Lxts_enc_epilogue:
+ ret
+.cfi_endproc
+.size bsaes_xts_encrypt,.-bsaes_xts_encrypt
+
+.globl bsaes_xts_decrypt
+.type bsaes_xts_decrypt,\@abi-omnipotent
+.align 16
+bsaes_xts_decrypt:
+.cfi_startproc
+ mov %rsp, %rax
+.Lxts_dec_prologue:
+ push %rbp
+.cfi_push %rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+ lea -0x48(%rsp), %rsp
+.cfi_adjust_cfa_offset 0x48
+___
+$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($out)
- pxor @XMM[15], @XMM[5]
- movdqu @XMM[2], 0x60($out)
- lea .LADD1(%rip), %r11
+ pxor 0x70(%rsp), @XMM[5]
+ movdqu @XMM[3], 0x60($out)
movdqu @XMM[5], 0x70($out)
lea 0x80($out), $out
- paddd 0x70(%r11), @XMM[0] # .LADD8
- jnz .Lctr_enc_loop
- jmp .Lctr_enc_done
+ 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), $out
+
+ movdqa 0x70(%rsp), @XMM[7] # next iteration tweak
+ jmp .Lxts_dec_done
.align 16
-.Lctr_enc_loop_done:
- movdqu 0x00($inp), @XMM[8] # load input
- pxor @XMM[8], @XMM[0]
+.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
- cmp \$2,$len
- jb .Lctr_enc_done
- movdqu 0x10($inp), @XMM[9]
- pxor @XMM[9], @XMM[1]
+ pxor 0x20(%rsp), @XMM[6]
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]
+ 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)
- je .Lctr_enc_done
- movdqu 0x60($inp), @XMM[14]
- pxor @XMM[14], @XMM[2]
- movdqu @XMM[2], 0x60($out)
- jmp .Lctr_enc_done
+ lea 0x60($out), $out
+ movdqa 0x60(%rsp), @XMM[7] # next iteration tweak
+ jmp .Lxts_dec_done
.align 16
-.Lctr_enc_short:
+.Lxts_dec_5:
+ pxor @XMM[8+3], @XMM[3]
+ lea 0x50($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 0x30(%rbp), $arg2
+ lea 0x20(%rbp), $arg2
lea ($key), $arg3
- call AES_encrypt
- movdqu ($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 $len
- jnz .Lctr_enc_short
+ call asm_AES_decrypt # doesn't touch %xmm
+ pxor 0x20(%rbp), @XMM[0] # ^= tweak[]
+ #pxor @XMM[8], @XMM[0]
+ #lea 0x80(%rsp), %rax # pass key schedule
+ #mov %edx, %r10d # pass rounds
+ #call _bsaes_decrypt8
+ #pxor 0x00(%rsp), @XMM[0] # ^= tweak[]
+ movdqu @XMM[0], 0x00($out) # write output
+ lea 0x10($out), $out
-.Lctr_enc_done:
+ 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
-.Lctr_enc_bzero: # wipe key schedule [if any]
+.Lxts_dec_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
+ ja .Lxts_dec_bzero
- lea (%rbp),%rsp # restore %rsp
+ lea 0x78(%rbp),%rax
+.cfi_def_cfa %rax,8
___
$code.=<<___ if ($win64);
movaps 0x40(%rbp), %xmm6
movaps 0xb0(%rbp), %xmm13
movaps 0xc0(%rbp), %xmm14
movaps 0xd0(%rbp), %xmm15
- lea 0xa0(%rbp), %rsp
+ lea 0xa0(%rax), %rax
+.Lxts_dec_tail:
___
$code.=<<___;
- mov 0x48(%rsp), %r15
- mov 0x50(%rsp), %r14
- mov 0x58(%rsp), %r13
- mov 0x60(%rsp), %r12
- mov 0x68(%rsp), %rbx
- mov 0x70(%rsp), %rbp
- lea 0x78(%rsp), %rsp
-.Lctr_enc_epilogue:
+ mov -48(%rax), %r15
+.cfi_restore %r15
+ mov -40(%rax), %r14
+.cfi_restore %r14
+ mov -32(%rax), %r13
+.cfi_restore %r13
+ mov -24(%rax), %r12
+.cfi_restore %r12
+ mov -16(%rax), %rbx
+.cfi_restore %rbx
+ mov -8(%rax), %rbp
+.cfi_restore %rbp
+ lea (%rax), %rsp # restore %rsp
+.cfi_def_cfa_register %rsp
+.Lxts_dec_epilogue:
ret
-.size bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks
+.cfi_endproc
+.size bsaes_xts_decrypt,.-bsaes_xts_decrypt
___
}
$code.=<<___;
+.type _bsaes_const,\@object
.align 64
-.LBS0: .quad 0x5555555555555555, 0x5555555555555555
-.LBS1: .quad 0x3333333333333333, 0x3333333333333333
-.LBS2: .quad 0x0f0f0f0f0f0f0f0f, 0x0f0f0f0f0f0f0f0f
-.LSR: .quad 0x0504070600030201, 0x0f0e0d0c0a09080b
-.LSRM0: .quad 0x0304090e00050a0f, 0x01060b0c0207080d
-.LM0: .quad 0x02060a0e03070b0f, 0x0004080c0105090d
-.LM0SR: .quad 0x0a0e02060f03070b, 0x0004080c05090d01
-.LNOT: .quad 0xffffffffffffffff, 0xffffffffffffffff
-.L63: .quad 0x6363636363636363, 0x6363636363636363
-.LSWPUP:
+_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: .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
-.asciz "Bit-sliced AES for x86_64/SSSE3, Emilia Käsper and Peter Schwabe"
+.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($disp),%r11 # disp->HandlerData
+
+ mov 0(%r11),%r10d # HandlerData[0]
+ lea (%rsi,%r10),%r10 # prologue label
+ cmp %r10,%rbx # context->Rip<=prologue label
+ jbe .Lin_prologue
+
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=epilogue label
+ jae .Lin_prologue
+
+ mov 8(%r11),%r10d # HandlerData[2]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=tail label
+ jae .Lin_tail
+
+ mov 160($context),%rax # pull context->Rbp
+
+ lea 0x40(%rax),%rsi # %xmm save area
+ lea 512($context),%rdi # &context.Xmm6
+ mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax)
+ .long 0xa548f3fc # cld; rep movsq
+ lea 0xa0+0x78(%rax),%rax # adjust stack pointer
+
+.Lin_tail:
+ mov -48(%rax),%rbp
+ mov -40(%rax),%rbx
+ mov -32(%rax),%r12
+ mov -24(%rax),%r13
+ mov -16(%rax),%r14
+ mov -8(%rax),%r15
+ mov %rbx,144($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[]
+ .rva .Lecb_enc_tail
+ .long 0
+.Lecb_dec_info:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lecb_dec_body,.Lecb_dec_epilogue # HandlerData[]
+ .rva .Lecb_dec_tail
+ .long 0
+___
+$code.=<<___;
+.Lcbc_dec_info:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lcbc_dec_body,.Lcbc_dec_epilogue # HandlerData[]
+ .rva .Lcbc_dec_tail
+ .long 0
+.Lctr_enc_info:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lctr_enc_body,.Lctr_enc_epilogue # HandlerData[]
+ .rva .Lctr_enc_tail
+ .long 0
+.Lxts_enc_info:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[]
+ .rva .Lxts_enc_tail
+ .long 0
+.Lxts_dec_info:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[]
+ .rva .Lxts_dec_tail
+ .long 0
+___
+}
$code =~ s/\`([^\`]*)\`/eval($1)/gem;