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aesni-xts-avx512.pl
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aesni-xts-avx512.pl
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#! /usr/bin/env perl
# Copyright (C) 2023 Intel Corporation
#
# Licensed under the OpenSSL license (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
# This implementation is based on the AES-XTS code (AVX512VAES + VPCLMULQDQ)
# from Intel(R) Intelligent Storage Acceleration Library Crypto Version
# (https://github.com/intel/isa-l_crypto).
#
######################################################################
# The main building block of the loop is code that encrypts/decrypts
# 8/16 blocks of data stitching with generation of tweak for the next
# 8/16 blocks, utilizing VAES and VPCLMULQDQ instructions with full width
# of ZMM registers. The main loop is selected based on the input length.
# main_loop_run_16 encrypts/decrypts 16 blocks in parallel and it's selected
# when input length >= 256 bytes (16 blocks)
# main_loop_run_8 encrypts/decrypts 8 blocks in parallel and it's selected
# when 128 bytes <= input length < 256 bytes (8-15 blocks)
# Input length < 128 bytes (8 blocks) is handled by do_n_blocks.
#
# This implementation mainly uses vpshrdq from AVX-512-VBMI2 family and vaesenc,
# vaesdec, vpclmulqdq from AVX-512F family.
# The first two arguments should always be the flavour and output file path.
if ($#ARGV < 1) { die "Not enough arguments provided.
Two arguments are necessary: the flavour and the output file path."; }
$flavour = shift;
$output = shift;
$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
$avx512vaes = 1;
for (@ARGV) { $avx512vaes = 0 if (/-DMY_ASSEMBLER_IS_TOO_OLD_FOR_512AVX/); }
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $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;
#======================================================================
if ($avx512vaes) {
my $GP_STORAGE = $win64 ? (16 * 33) : (16 * 23); # store rbx
my $XMM_STORAGE = $win64 ? (16 * 23) : 0; # store xmm6:xmm15
my $VARIABLE_OFFSET = $win64 ? (16 *8 + 16* 15 + 16 * 10 + 8*3) :
(16*8 + 16 * 15 + 8 * 1);
my $TW = "%rsp";
my $TWTEMPH = "%rbx";
my $TWTEMPL = "%rax";
my $ZPOLY = "%zmm25";
# ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
# ;;; Function arguments abstraction
# ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
my ($key2, $key1, $tweak, $length, $input, $output);
if ($win64) {
$input = "%rcx";
$output = "%rdx";
$length = "%r8";
$key1 = "%r9";
$key2 = "%r10";
$tweak = "%r11";
} else {
$input = "%rdi";
$output = "%rsi";
$length = "%rdx";
$key1 = "%rcx";
$key2 = "%r8";
$tweak = "%r9";
}
# arguments for temp parameters
my ($tmp1, $gf_poly_8b, $gf_poly_8b_temp);
if ($win64) {
$tmp1 = "%r10";
$gf_poly_8b = "%rdi";
$gf_poly_8b_temp = "%rsi";
} else {
$tmp1 = "%r8";
$gf_poly_8b = "%r10";
$gf_poly_8b_temp = "%r11";
}
# ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
# ;;; Helper functions
# ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
# Generates "random" local labels
sub random_string() {
my @chars = ('a' .. 'z', 'A' .. 'Z', '0' .. '9', '_');
my $length = 15;
my $str;
map { $str .= $chars[rand(33)] } 1 .. $length;
return $str;
}
# ; Seed the RNG so the labels are generated deterministically
srand(12345);
sub encrypt_tweak_for_encryption {
my $key2 = $_[0];
my $state_tweak = $_[1];
my $key1 = $_[2];
my $raw_key = $_[3];
my $tmp = $_[4];
my $ptr_key2 = $_[5];
my $ptr_key1 = $_[6];
my $ptr_expanded_keys = $_[7];
$code.=<<___;
vmovdqu ($ptr_key2), $key2
vpxor $key2, $state_tweak, $state_tweak # AddRoundKey(ARK) for tweak encryption
vmovdqu ($ptr_key1), $key1
vmovdqa $key1, 0x80($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x10($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 1 for tweak encryption
vmovdqu 0x10($ptr_key1), $key1
vmovdqa $key1, 0x90($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x20($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 2 for tweak encryption
vmovdqu 0x20($ptr_key1), $key1
vmovdqa $key1, 0xa0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x30($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 3 for tweak encryption
vmovdqu 0x30($ptr_key1), $key1
vmovdqa $key1, 0xb0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x40($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 4 for tweak encryption
vmovdqu 0x40($ptr_key1), $key1
vmovdqa $key1, 0xc0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x50($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 5 for tweak encryption
vmovdqu 0x50($ptr_key1), $key1
vmovdqa $key1, 0xd0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x60($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 6 for tweak encryption
vmovdqu 0x60($ptr_key1), $key1
vmovdqa $key1, 0xe0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x70($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 7 for tweak encryption
vmovdqu 0x70($ptr_key1), $key1
vmovdqa $key1, 0xf0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x80($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 8 for tweak encryption
vmovdqu 0x80($ptr_key1), $key1
vmovdqa $key1, 0x100($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x90($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 9 for tweak encryption
vmovdqu 0x90($ptr_key1), $key1
vmovdqa $key1, 0x110($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xa0($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 10 for tweak encryption
vmovdqu 0xa0($ptr_key1), $key1
vmovdqa $key1, 0x120($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xb0($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 11 for tweak encryption
vmovdqu 0xb0($ptr_key1), $key1
vmovdqa $key1, 0x130($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xc0($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 12 for tweak encryption
vmovdqu 0xc0($ptr_key1), $key1
vmovdqa $key1, 0x140($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xd0($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 13 for tweak encryption
vmovdqu 0xd0($ptr_key1), $key1
vmovdqa $key1, 0x150($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xe0($ptr_key2), $key2
vaesenclast $key2, $state_tweak, $state_tweak # round 14 for tweak encryption
vmovdqu 0xe0($ptr_key1), $key1
vmovdqa $key1, 0x160($ptr_expanded_keys) # store round keys in stack
vmovdqa $state_tweak, ($ptr_expanded_keys) # Store the encrypted Tweak value
___
}
sub initialize {
my @st;
$st[0] = $_[0];
$st[1] = $_[1];
$st[2] = $_[2];
$st[3] = $_[3];
$st[4] = $_[4];
$st[5] = $_[5];
$st[6] = $_[6];
$st[7] = $_[7];
my @tw;
$tw[0] = $_[8];
$tw[1] = $_[9];
$tw[2] = $_[10];
$tw[3] = $_[11];
$tw[4] = $_[12];
$tw[5] = $_[13];
$tw[6] = $_[14];
my $num_initial_blocks = $_[15];
$code .= <<___;
vmovdqa 0x0($TW), $tw[0]
mov 0x0($TW), $TWTEMPL
mov 0x08($TW), $TWTEMPH
vmovdqu 0x0($input), $st[0]
___
if ($num_initial_blocks >= 2) {
for (my $i = 1; $i < $num_initial_blocks; $i++) {
$code .= "xor $gf_poly_8b_temp, $gf_poly_8b_temp\n";
$code .= "shl \$1, $TWTEMPL\n";
$code .= "adc $TWTEMPH, $TWTEMPH\n";
$code .= "cmovc $gf_poly_8b, $gf_poly_8b_temp\n";
$code .= "xor $gf_poly_8b_temp, $TWTEMPL\n";
my $offset = $i * 16;
$code .= "mov $TWTEMPL, $offset($TW)\n";
$code .= "mov $TWTEMPH, `$offset + 8`($TW)\n";
$code .= "vmovdqa $offset($TW), $tw[$i]\n";
$code .= "vmovdqu $offset($input), $st[$i]\n";
}
}
}
# encrypt initial blocks of AES
# 1, 2, 3, 4, 5, 6 or 7 blocks are encrypted
# next 8 Tweak values are generated
sub encrypt_initial {
my @st;
$st[0] = $_[0];
$st[1] = $_[1];
$st[2] = $_[2];
$st[3] = $_[3];
$st[4] = $_[4];
$st[5] = $_[5];
$st[6] = $_[6];
$st[7] = $_[7];
my @tw;
$tw[0] = $_[8];
$tw[1] = $_[9];
$tw[2] = $_[10];
$tw[3] = $_[11];
$tw[4] = $_[12];
$tw[5] = $_[13];
$tw[6] = $_[14];
my $t0 = $_[15];
my $num_blocks = $_[16];
my $lt128 = $_[17];
# num_blocks blocks encrypted
# num_blocks can be 1, 2, 3, 4, 5, 6, 7
# xor Tweak value
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vpxor $tw[$i], $st[$i], $st[$i]\n";
}
$code .= "vmovdqa 0x80($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vpxor $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
___
}
# round 1
$code .= "vmovdqa 0x90($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x0($TW) # next Tweak1 generated
mov $TWTEMPL, 0x08($TW)
xor $gf_poly_8b_temp, $gf_poly_8b_temp
___
}
# round 2
$code .= "vmovdqa 0xa0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x10($TW) # next Tweak2 generated
___
}
# round 3
$code .= "vmovdqa 0xb0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
mov $TWTEMPH, 0x18($TW)
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
___
}
# round 4
$code .= "vmovdqa 0xc0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x20($TW) # next Tweak3 generated
mov $TWTEMPH, 0x28($TW)
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
___
}
# round 5
$code .= "vmovdqa 0xd0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x30($TW) # next Tweak4 generated
mov $TWTEMPH, 0x38($TW)
___
}
# round 6
$code .= "vmovdqa 0xe0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x40($TW) # next Tweak5 generated
mov $TWTEMPH, 0x48($TW)
___
}
# round 7
$code .= "vmovdqa 0xf0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x50($TW) # next Tweak6 generated
mov $TWTEMPH, 0x58($TW)
___
}
# round 8
$code .= "vmovdqa 0x100($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x60($TW) # next Tweak7 generated
mov $TWTEMPH, 0x68($TW)
___
}
# round 9
$code .= "vmovdqa 0x110($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x70($TW) # next Tweak8 generated
mov $TWTEMPH, 0x78($TW)
___
}
# round 10
$code .= "vmovdqa 0x120($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
# round 11
$code .= "vmovdqa 0x130($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
# round 12
$code .= "vmovdqa 0x140($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
# round 13
$code .= "vmovdqa 0x150($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenc $t0, $st[$i], $st[$i]\n";
}
# round 14
$code .= "vmovdqa 0x160($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesenclast $t0, $st[$i], $st[$i]\n";
}
# xor Tweak values
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vpxor $tw[$i], $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
# load next Tweak values
$code .= <<___;
vmovdqa 0x0($TW), $tw[0]
vmovdqa 0x10($TW), $tw[1]
vmovdqa 0x20($TW), $tw[2]
vmovdqa 0x30($TW), $tw[3]
vmovdqa 0x40($TW), $tw[4]
vmovdqa 0x50($TW), $tw[5]
vmovdqa 0x60($TW), $tw[6]
___
}
}
sub encrypt_tweak_for_decryption {
my $key2 = $_[0];
my $state_tweak = $_[1];
my $key1 = $_[2];
my $raw_key = $_[3];
my $tmp = $_[4];
my $ptr_key2 = $_[5];
my $ptr_key1 = $_[6];
my $ptr_expanded_keys = $_[7];
$code.=<<___;
vmovdqu ($ptr_key2), $key2
vpxor $key2, $state_tweak, $state_tweak # ARK for tweak encryption
vmovdqu 0xe0($ptr_key1), $key1
vmovdqa $key1, 0x160($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x10($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 1 for tweak encryption
vmovdqu 0xd0($ptr_key1), $key1
vmovdqa $key1, 0x150($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x20($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 2 for tweak encryption
vmovdqu 0xc0($ptr_key1), $key1
vmovdqa $key1, 0x140($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x30($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 3 for tweak encryption
vmovdqu 0xb0($ptr_key1), $key1
vmovdqa $key1, 0x130($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x40($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 4 for tweak encryption
vmovdqu 0xa0($ptr_key1), $key1
vmovdqa $key1, 0x120($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x50($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 5 for tweak encryption
vmovdqu 0x90($ptr_key1), $key1
vmovdqa $key1, 0x110($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x60($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 6 for tweak encryption
vmovdqu 0x80($ptr_key1), $key1
vmovdqa $key1, 0x100($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x70($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 7 for tweak encryption
vmovdqu 0x70($ptr_key1), $key1
vmovdqa $key1, 0xf0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x80($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 8 for tweak encryption
vmovdqu 0x60($ptr_key1), $key1
vmovdqa $key1, 0xe0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0x90($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 9 for tweak encryption
vmovdqu 0x50($ptr_key1), $key1
vmovdqa $key1, 0xd0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xa0($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 10 for tweak encryption
vmovdqu 0x40($ptr_key1), $key1
vmovdqa $key1, 0xc0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xb0($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 11 for tweak encryption
vmovdqu 0x30($ptr_key1), $key1
vmovdqa $key1, 0xb0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xc0($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 12 for tweak encryption
vmovdqu 0x20($ptr_key1), $key1
vmovdqa $key1, 0xa0($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xd0($ptr_key2), $key2
vaesenc $key2, $state_tweak, $state_tweak # round 13 for tweak encryption
vmovdqu 0x10($ptr_key1), $key1
vmovdqa $key1, 0x90($ptr_expanded_keys) # store round keys in stack
vmovdqu 0xe0($ptr_key2), $key2
vaesenclast $key2, $state_tweak, $state_tweak # round 14 for tweak encryption
vmovdqu ($ptr_key1), $key1
vmovdqa $key1, 0x80($ptr_expanded_keys) # store round keys in stack
vmovdqa $state_tweak, ($ptr_expanded_keys) # Store the encrypted Tweak value
___
}
# decrypt initial blocks of AES
# 1, 2, 3, 4, 5, 6 or 7 blocks are encrypted
# next 8 Tweak values are generated
sub decrypt_initial {
my @st;
$st[0] = $_[0];
$st[1] = $_[1];
$st[2] = $_[2];
$st[3] = $_[3];
$st[4] = $_[4];
$st[5] = $_[5];
$st[6] = $_[6];
$st[7] = $_[7];
my @tw;
$tw[0] = $_[8];
$tw[1] = $_[9];
$tw[2] = $_[10];
$tw[3] = $_[11];
$tw[4] = $_[12];
$tw[5] = $_[13];
$tw[6] = $_[14];
my $t0 = $_[15];
my $num_blocks = $_[16];
my $lt128 = $_[17];
# num_blocks blocks encrypted
# num_blocks can be 1, 2, 3, 4, 5, 6, 7
# xor Tweak value
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vpxor $tw[$i], $st[$i], $st[$i]\n";
}
$code .= "vmovdqa 0x80($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vpxor $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
___
}
# round 1
$code .= "vmovdqa 0x90($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, ($TW) # next Tweak1 generated
mov $TWTEMPL, 0x08($TW)
xor $gf_poly_8b_temp, $gf_poly_8b_temp
___
}
# round 2
$code .= "vmovdqa 0xa0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x10($TW) # next Tweak2 generated
___
}
# round 3
$code .= "vmovdqa 0xb0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
mov $TWTEMPH, 0x18($TW)
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
___
}
# round 4
$code .= "vmovdqa 0xc0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x20($TW) # next Tweak3 generated
mov $TWTEMPH, 0x28($TW)
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
___
}
# round 5
$code .= "vmovdqa 0xd0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x30($TW) # next Tweak4 generated
mov $TWTEMPH, 0x38($TW)
___
}
# round 6
$code .= "vmovdqa 0xe0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x40($TW) # next Tweak5 generated
mov $TWTEMPH, 0x48($TW)
___
}
# round 7
$code .= "vmovdqa 0xf0($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x50($TW) # next Tweak6 generated
mov $TWTEMPH, 0x58($TW)
___
}
# round 8
$code .= "vmovdqa 0x100($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x60($TW) # next Tweak7 generated
mov $TWTEMPH, 0x68($TW)
___
}
# round 9
$code .= "vmovdqa 0x110($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
$code .= <<___;
xor $gf_poly_8b_temp, $gf_poly_8b_temp
shl \$1, $TWTEMPL
adc $TWTEMPH, $TWTEMPH
cmovc $gf_poly_8b, $gf_poly_8b_temp
xor $gf_poly_8b_temp, $TWTEMPL
mov $TWTEMPL, 0x70($TW) # next Tweak8 generated
mov $TWTEMPH, 0x78($TW)
___
}
# round 10
$code .= "vmovdqa 0x120($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
# round 11
$code .= "vmovdqa 0x130($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
# round 12
$code .= "vmovdqa 0x140($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
# round 13
$code .= "vmovdqa 0x150($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdec $t0, $st[$i], $st[$i]\n";
}
# round 14
$code .= "vmovdqa 0x160($TW), $t0\n";
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vaesdeclast $t0, $st[$i], $st[$i]\n";
}
# xor Tweak values
for (my $i = 0; $i < $num_blocks; $i++) {
$code .= "vpxor $tw[$i], $st[$i], $st[$i]\n";
}
if (0 == $lt128) {
# load next Tweak values
$code .= <<___;
vmovdqa ($TW), $tw1
vmovdqa 0x10($TW), $tw2
vmovdqa 0x20($TW), $tw3
vmovdqa 0x30($TW), $tw4
vmovdqa 0x40($TW), $tw5
vmovdqa 0x50($TW), $tw6
vmovdqa 0x60($TW), $tw7
___
}
}
# Encrypt 8 blocks in parallel
# generate next 8 tweak values
sub encrypt_by_eight_zmm {
my $st1 = $_[0];
my $st2 = $_[1];
my $tw1 = $_[2];
my $tw2 = $_[3];
my $t0 = $_[4];
my $last_eight = $_[5];
$code .= <<___;
# xor Tweak values
vpxorq $tw1, $st1, $st1
vpxorq $tw2, $st2, $st2
# ARK
vbroadcasti32x4 0x80($TW), $t0
vpxorq $t0, $st1, $st1
vpxorq $t0, $st2, $st2
___
if (0 == $last_eight) {
$code .= <<___;
vpsrldq \$0xf, $tw1, %zmm13
vpclmulqdq \$0x0, $ZPOLY, %zmm13, %zmm14
vpslldq \$0x1, $tw1, %zmm15
vpxord %zmm14, %zmm15, %zmm15
___
}
# round 1
$code .= <<___;
vbroadcasti32x4 0x90($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 2
vbroadcasti32x4 0xa0($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 3
vbroadcasti32x4 0xb0($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
___
if (0 == $last_eight) {
$code .= <<___;
vpsrldq \$0xf, $tw2, %zmm13
vpclmulqdq \$0x0, $ZPOLY, %zmm13, %zmm14
vpslldq \$0x1, $tw2, %zmm16
vpxord %zmm14, %zmm16, %zmm16
___
}
$code .= <<___;
# round 4
vbroadcasti32x4 0xc0($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 5
vbroadcasti32x4 0xd0($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 6
vbroadcasti32x4 0xe0($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 7
vbroadcasti32x4 0xf0($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 8
vbroadcasti32x4 0x100($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 9
vbroadcasti32x4 0x110($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 10
vbroadcasti32x4 0x120($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 11
vbroadcasti32x4 0x130($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 12
vbroadcasti32x4 0x140($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 13
vbroadcasti32x4 0x150($TW), $t0
vaesenc $t0, $st1, $st1
vaesenc $t0, $st2, $st2
# round 14
vbroadcasti32x4 0x160($TW), $t0
vaesenclast $t0, $st1, $st1
vaesenclast $t0, $st2, $st2
# xor Tweak values
vpxorq $tw1, $st1, $st1