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+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+#
+# This module implements support for Intel AES-NI extension. In
+# OpenSSL context it's used with Intel engine, but can also be used as
+# drop-in replacement for crypto/aes/asm/aes-x86_64.pl [see below for
+# details].
+
+$PREFIX="aesni"; # if $PREFIX is set to "AES", the script
+ # generates drop-in replacement for
+ # crypto/aes/asm/aes-x86_64.pl:-)
+
+$flavour = shift;
+$output = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
+die "can't locate x86_64-xlate.pl";
+
+open STDOUT,"| $^X $xlate $flavour $output";
+
+$movkey = $PREFIX eq "aesni" ? "movaps" : "movups";
+@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
+ ("%rdi","%rsi","%rdx","%rcx"); # Unix order
+
+$code=".text\n";
+
+$rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!!
+# this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ...
+$inp="%rdi";
+$out="%rsi";
+$len="%rdx";
+$key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!!
+$ivp="%r8"; # cbc
+
+$rnds_="%r10d"; # backup copy for $rounds
+$key_="%r11"; # backup copy for $key
+
+# %xmm register layout
+$inout0="%xmm0"; $inout1="%xmm1";
+$inout2="%xmm2"; $inout3="%xmm3";
+$rndkey0="%xmm4"; $rndkey1="%xmm5";
+
+$iv="%xmm6"; $in0="%xmm7"; # used in CBC decrypt
+$in1="%xmm8"; $in2="%xmm9";
+
+# Inline version of internal aesni_[en|de]crypt1.
+#
+# Why folded loop? Because aes[enc|dec] is slow enough to accommodate
+# cycles which take care of loop variables...
+{ my $sn;
+sub aesni_generate1 {
+my ($p,$key,$rounds)=@_;
+++$sn;
+$code.=<<___;
+ $movkey ($key),$rndkey0
+ $movkey 16($key),$rndkey1
+ lea 32($key),$key
+ pxor $rndkey0,$inout0
+.Loop_${p}1_$sn:
+ aes${p} $rndkey1,$inout0
+ dec $rounds
+ $movkey ($key),$rndkey1
+ lea 16($key),$key
+ jnz .Loop_${p}1_$sn # loop body is 16 bytes
+ aes${p}last $rndkey1,$inout0
+___
+}}
+# void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key);
+#
+{ my ($inp,$out,$key) = @_4args;
+
+$code.=<<___;
+.globl ${PREFIX}_encrypt
+.type ${PREFIX}_encrypt,\@abi-omnipotent
+.align 16
+${PREFIX}_encrypt:
+ movups ($inp),$inout0 # load input
+ mov 240($key),$rounds # pull $rounds
+___
+ &aesni_generate1("enc",$key,$rounds);
+$code.=<<___;
+ movups $inout0,($out) # output
+ ret
+.size ${PREFIX}_encrypt,.-${PREFIX}_encrypt
+
+.globl ${PREFIX}_decrypt
+.type ${PREFIX}_decrypt,\@abi-omnipotent
+.align 16
+${PREFIX}_decrypt:
+ movups ($inp),$inout0 # load input
+ mov 240($key),$rounds # pull $rounds
+___
+ &aesni_generate1("dec",$key,$rounds);
+$code.=<<___;
+ movups $inout0,($out) # output
+ ret
+.size ${PREFIX}_decrypt, .-${PREFIX}_decrypt
+___
+}
+
+# _aesni_[en|de]crypt[34] are private interfaces, N denotes interleave
+# factor. Why 3x subroutine is used in loops? Even though aes[enc|dec]
+# latency is 6, it turned out that it can be scheduled only every
+# *second* cycle. Thus 3x interleave is the one providing optimal
+# utilization, i.e. when subroutine's throughput is virtually same as
+# of non-interleaved subroutine [for number of input blocks up to 3].
+# This is why it makes no sense to implement 2x subroutine. As soon
+# as/if Intel improves throughput by making it possible to schedule
+# the instructions in question *every* cycles I would have to
+# implement 6x interleave and use it in loop...
+sub aesni_generate3 {
+my $dir=shift;
+# As already mentioned it takes in $key and $rounds, which are *not*
+# preserved. $inout[0-2] is cipher/clear text...
+$code.=<<___;
+.type _aesni_${dir}rypt3,\@abi-omnipotent
+.align 16
+_aesni_${dir}rypt3:
+ $movkey ($key),$rndkey0
+ shr \$1,$rounds
+ $movkey 16($key),$rndkey1
+ lea 32($key),$key
+ pxor $rndkey0,$inout0
+ pxor $rndkey0,$inout1
+ pxor $rndkey0,$inout2
+
+.L${dir}_loop3:
+ aes${dir} $rndkey1,$inout0
+ $movkey ($key),$rndkey0
+ aes${dir} $rndkey1,$inout1
+ dec $rounds
+ aes${dir} $rndkey1,$inout2
+ aes${dir} $rndkey0,$inout0
+ $movkey 16($key),$rndkey1
+ aes${dir} $rndkey0,$inout1
+ lea 32($key),$key
+ aes${dir} $rndkey0,$inout2
+ jnz .L${dir}_loop3
+
+ aes${dir} $rndkey1,$inout0
+ $movkey ($key),$rndkey0
+ aes${dir} $rndkey1,$inout1
+ aes${dir} $rndkey1,$inout2
+ aes${dir}last $rndkey0,$inout0
+ aes${dir}last $rndkey0,$inout1
+ aes${dir}last $rndkey0,$inout2
+ ret
+.size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3
+___
+}
+# 4x interleave is implemented to improve small block performance,
+# most notably [and naturally] 4 block by ~30%. One can argue that one
+# should have implemented 5x as well, but improvement would be <20%,
+# so it's not worth it...
+sub aesni_generate4 {
+my $dir=shift;
+# As already mentioned it takes in $key and $rounds, which are *not*
+# preserved. $inout[0-3] is cipher/clear text...
+$code.=<<___;
+.type _aesni_${dir}rypt4,\@abi-omnipotent
+.align 16
+_aesni_${dir}rypt4:
+ $movkey ($key),$rndkey0
+ shr \$1,$rounds
+ $movkey 16($key),$rndkey1
+ lea 32($key),$key
+ pxor $rndkey0,$inout0
+ pxor $rndkey0,$inout1
+ pxor $rndkey0,$inout2
+ pxor $rndkey0,$inout3
+
+.L${dir}_loop4:
+ aes${dir} $rndkey1,$inout0
+ $movkey ($key),$rndkey0
+ aes${dir} $rndkey1,$inout1
+ dec $rounds
+ aes${dir} $rndkey1,$inout2
+ aes${dir} $rndkey1,$inout3
+ aes${dir} $rndkey0,$inout0
+ $movkey 16($key),$rndkey1
+ aes${dir} $rndkey0,$inout1
+ lea 32($key),$key
+ aes${dir} $rndkey0,$inout2
+ aes${dir} $rndkey0,$inout3
+ jnz .L${dir}_loop4
+
+ aes${dir} $rndkey1,$inout0
+ $movkey ($key),$rndkey0
+ aes${dir} $rndkey1,$inout1
+ aes${dir} $rndkey1,$inout2
+ aes${dir} $rndkey1,$inout3
+ aes${dir}last $rndkey0,$inout0
+ aes${dir}last $rndkey0,$inout1
+ aes${dir}last $rndkey0,$inout2
+ aes${dir}last $rndkey0,$inout3
+ ret
+.size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4
+___
+}
+&aesni_generate3("enc") if ($PREFIX eq "aesni");
+&aesni_generate3("dec");
+&aesni_generate4("enc") if ($PREFIX eq "aesni");
+&aesni_generate4("dec");
+
+if ($PREFIX eq "aesni") {
+# void aesni_ecb_encrypt (const void *in, void *out,
+# size_t length, const AES_KEY *key,
+# int enc);
+$code.=<<___;
+.globl aesni_ecb_encrypt
+.type aesni_ecb_encrypt,\@function,5
+.align 16
+aesni_ecb_encrypt:
+ cmp \$16,$len # check length
+ jb .Lecb_ret
+
+ mov 240($key),$rounds # pull $rounds
+ and \$-16,$len
+ mov $key,$key_ # backup $key
+ test %r8d,%r8d # 5th argument
+ mov $rounds,$rnds_ # backup $rounds
+ jz .Lecb_decrypt
+#--------------------------- ECB ENCRYPT ------------------------------#
+ sub \$0x40,$len
+ jbe .Lecb_enc_tail
+ jmp .Lecb_enc_loop3
+.align 16
+.Lecb_enc_loop3:
+ movups ($inp),$inout0
+ movups 0x10($inp),$inout1
+ movups 0x20($inp),$inout2
+ call _aesni_encrypt3
+ sub \$0x30,$len
+ lea 0x30($inp),$inp
+ lea 0x30($out),$out
+ movups $inout0,-0x30($out)
+ mov $rnds_,$rounds # restore $rounds
+ movups $inout1,-0x20($out)
+ mov $key_,$key # restore $key
+ movups $inout2,-0x10($out)
+ ja .Lecb_enc_loop3
+
+.Lecb_enc_tail:
+ add \$0x40,$len
+ jz .Lecb_ret
+
+ cmp \$0x10,$len
+ movups ($inp),$inout0
+ je .Lecb_enc_one
+ cmp \$0x20,$len
+ movups 0x10($inp),$inout1
+ je .Lecb_enc_two
+ cmp \$0x30,$len
+ movups 0x20($inp),$inout2
+ je .Lecb_enc_three
+ movups 0x30($inp),$inout3
+ call _aesni_encrypt4
+ movups $inout0,($out)
+ movups $inout1,0x10($out)
+ movups $inout2,0x20($out)
+ movups $inout3,0x30($out)
+ jmp .Lecb_ret
+.align 16
+.Lecb_enc_one:
+___
+ &aesni_generate1("enc",$key,$rounds);
+$code.=<<___;
+ movups $inout0,($out)
+ jmp .Lecb_ret
+.align 16
+.Lecb_enc_two:
+ call _aesni_encrypt3
+ movups $inout0,($out)
+ movups $inout1,0x10($out)
+ jmp .Lecb_ret
+.align 16
+.Lecb_enc_three:
+ call _aesni_encrypt3
+ movups $inout0,($out)
+ movups $inout1,0x10($out)
+ movups $inout2,0x20($out)
+ jmp .Lecb_ret
+ #--------------------------- ECB DECRYPT ------------------------------#
+.align 16
+.Lecb_decrypt:
+ sub \$0x40,$len
+ jbe .Lecb_dec_tail
+ jmp .Lecb_dec_loop3
+.align 16
+.Lecb_dec_loop3:
+ movups ($inp),$inout0
+ movups 0x10($inp),$inout1
+ movups 0x20($inp),$inout2
+ call _aesni_decrypt3
+ sub \$0x30,$len
+ lea 0x30($inp),$inp
+ lea 0x30($out),$out
+ movups $inout0,-0x30($out)
+ mov $rnds_,$rounds # restore $rounds
+ movups $inout1,-0x20($out)
+ mov $key_,$key # restore $key
+ movups $inout2,-0x10($out)
+ ja .Lecb_dec_loop3
+
+.Lecb_dec_tail:
+ add \$0x40,$len
+ jz .Lecb_ret
+
+ cmp \$0x10,$len
+ movups ($inp),$inout0
+ je .Lecb_dec_one
+ cmp \$0x20,$len
+ movups 0x10($inp),$inout1
+ je .Lecb_dec_two
+ cmp \$0x30,$len
+ movups 0x20($inp),$inout2
+ je .Lecb_dec_three
+ movups 0x30($inp),$inout3
+ call _aesni_decrypt4
+ movups $inout0,($out)
+ movups $inout1,0x10($out)
+ movups $inout2,0x20($out)
+ movups $inout3,0x30($out)
+ jmp .Lecb_ret
+.align 16
+.Lecb_dec_one:
+___
+ &aesni_generate1("dec",$key,$rounds);
+$code.=<<___;
+ movups $inout0,($out)
+ jmp .Lecb_ret
+.align 16
+.Lecb_dec_two:
+ call _aesni_decrypt3
+ movups $inout0,($out)
+ movups $inout1,0x10($out)
+ jmp .Lecb_ret
+.align 16
+.Lecb_dec_three:
+ call _aesni_decrypt3
+ movups $inout0,($out)
+ movups $inout1,0x10($out)
+ movups $inout2,0x20($out)
+
+.Lecb_ret:
+ ret
+.size aesni_ecb_encrypt,.-aesni_ecb_encrypt
+___
+}
+
+# void $PREFIX_cbc_encrypt (const void *inp, void *out,
+# size_t length, const AES_KEY *key,
+# unsigned char *ivp,const int enc);
+$reserved = $win64?0x40:-0x18; # used in decrypt
+$code.=<<___;
+.globl ${PREFIX}_cbc_encrypt
+.type ${PREFIX}_cbc_encrypt,\@function,6
+.align 16
+${PREFIX}_cbc_encrypt:
+ test $len,$len # check length
+ jz .Lcbc_ret
+
+ mov 240($key),$rnds_ # pull $rounds
+ mov $key,$key_ # backup $key
+ test %r9d,%r9d # 6th argument
+ jz .Lcbc_decrypt
+#--------------------------- CBC ENCRYPT ------------------------------#
+ movups ($ivp),$inout0 # load iv as initial state
+ cmp \$16,$len
+ mov $rnds_,$rounds
+ jb .Lcbc_enc_tail
+ sub \$16,$len
+ jmp .Lcbc_enc_loop
+.align 16
+.Lcbc_enc_loop:
+ movups ($inp),$inout1 # load input
+ lea 16($inp),$inp
+ pxor $inout1,$inout0
+___
+ &aesni_generate1("enc",$key,$rounds);
+$code.=<<___;
+ sub \$16,$len
+ lea 16($out),$out
+ mov $rnds_,$rounds # restore $rounds
+ mov $key_,$key # restore $key
+ movups $inout0,-16($out) # store output
+ jnc .Lcbc_enc_loop
+ add \$16,$len
+ jnz .Lcbc_enc_tail
+ movups $inout0,($ivp)
+ jmp .Lcbc_ret
+
+.Lcbc_enc_tail:
+ mov $len,%rcx # zaps $key
+ xchg $inp,$out # $inp is %rsi and $out is %rdi now
+ .long 0x9066A4F3 # rep movsb
+ mov \$16,%ecx # zero tail
+ sub $len,%rcx
+ xor %eax,%eax
+ .long 0x9066AAF3 # rep stosb
+ lea -16(%rdi),%rdi # rewind $out by 1 block
+ mov $rnds_,$rounds # restore $rounds
+ mov %rdi,%rsi # $inp and $out are the same
+ mov $key_,$key # restore $key
+ xor $len,$len # len=16
+ jmp .Lcbc_enc_loop # one more spin
+ #--------------------------- CBC DECRYPT ------------------------------#
+.align 16
+.Lcbc_decrypt:
+___
+$code.=<<___ if ($win64);
+ lea -0x58(%rsp),%rsp
+ movaps %xmm6,(%rsp)
+ movaps %xmm7,0x10(%rsp)
+ movaps %xmm8,0x20(%rsp)
+ movaps %xmm9,0x30(%rsp)
+.Lcbc_decrypt_body:
+___
+$code.=<<___;
+ movups ($ivp),$iv
+ sub \$0x40,$len
+ mov $rnds_,$rounds
+ jbe .Lcbc_dec_tail
+ jmp .Lcbc_dec_loop3
+.align 16
+.Lcbc_dec_loop3:
+ movups ($inp),$inout0
+ movups 0x10($inp),$inout1
+ movups 0x20($inp),$inout2
+ movaps $inout0,$in0
+ movaps $inout1,$in1
+ movaps $inout2,$in2
+ call _aesni_decrypt3
+ sub \$0x30,$len
+ lea 0x30($inp),$inp
+ lea 0x30($out),$out
+ pxor $iv,$inout0
+ pxor $in0,$inout1
+ movaps $in2,$iv
+ pxor $in1,$inout2
+ movups $inout0,-0x30($out)
+ mov $rnds_,$rounds # restore $rounds
+ movups $inout1,-0x20($out)
+ mov $key_,$key # restore $key
+ movups $inout2,-0x10($out)
+ ja .Lcbc_dec_loop3
+
+.Lcbc_dec_tail:
+ add \$0x40,$len
+ movups $iv,($ivp)
+ jz .Lcbc_dec_ret
+
+ movups ($inp),$inout0
+ cmp \$0x10,$len
+ movaps $inout0,$in0
+ jbe .Lcbc_dec_one
+ movups 0x10($inp),$inout1
+ cmp \$0x20,$len
+ movaps $inout1,$in1
+ jbe .Lcbc_dec_two
+ movups 0x20($inp),$inout2
+ cmp \$0x30,$len
+ movaps $inout2,$in2
+ jbe .Lcbc_dec_three
+ movups 0x30($inp),$inout3
+ call _aesni_decrypt4
+ pxor $iv,$inout0
+ movups 0x30($inp),$iv
+ pxor $in0,$inout1
+ movups $inout0,($out)
+ pxor $in1,$inout2
+ movups $inout1,0x10($out)
+ pxor $in2,$inout3
+ movups $inout2,0x20($out)
+ movaps $inout3,$inout0
+ lea 0x30($out),$out
+ jmp .Lcbc_dec_tail_collected
+.align 16
+.Lcbc_dec_one:
+___
+ &aesni_generate1("dec",$key,$rounds);
+$code.=<<___;
+ pxor $iv,$inout0
+ movaps $in0,$iv
+ jmp .Lcbc_dec_tail_collected
+.align 16
+.Lcbc_dec_two:
+ call _aesni_decrypt3
+ pxor $iv,$inout0
+ pxor $in0,$inout1
+ movups $inout0,($out)
+ movaps $in1,$iv
+ movaps $inout1,$inout0
+ lea 0x10($out),$out
+ jmp .Lcbc_dec_tail_collected
+.align 16
+.Lcbc_dec_three:
+ call _aesni_decrypt3
+ pxor $iv,$inout0
+ pxor $in0,$inout1
+ movups $inout0,($out)
+ pxor $in1,$inout2
+ movups $inout1,0x10($out)
+ movaps $in2,$iv
+ movaps $inout2,$inout0
+ lea 0x20($out),$out
+ jmp .Lcbc_dec_tail_collected
+.align 16
+.Lcbc_dec_tail_collected:
+ and \$15,$len
+ movups $iv,($ivp)
+ jnz .Lcbc_dec_tail_partial
+ movups $inout0,($out)
+ jmp .Lcbc_dec_ret
+.Lcbc_dec_tail_partial:
+ movaps $inout0,$reserved(%rsp)
+ mov $out,%rdi
+ mov $len,%rcx
+ lea $reserved(%rsp),%rsi
+ .long 0x9066A4F3 # rep movsb
+
+.Lcbc_dec_ret:
+___
+$code.=<<___ if ($win64);
+ movaps (%rsp),%xmm6
+ movaps 0x10(%rsp),%xmm7
+ movaps 0x20(%rsp),%xmm8
+ movaps 0x30(%rsp),%xmm9
+ lea 0x58(%rsp),%rsp
+___
+$code.=<<___;
+.Lcbc_ret:
+ ret
+.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt
+___
+
+# int $PREFIX_set_[en|de]crypt_key (const unsigned char *userKey,
+# int bits, AES_KEY *key)
+{ my ($inp,$bits,$key) = @_4args;
+ $bits =~ s/%r/%e/;
+
+$code.=<<___;
+.globl ${PREFIX}_set_decrypt_key
+.type ${PREFIX}_set_decrypt_key,\@abi-omnipotent
+.align 16
+${PREFIX}_set_decrypt_key:
+ .byte 0x48,0x83,0xEC,0x08 # sub rsp,8
+ call _aesni_set_encrypt_key
+ shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key
+ test %eax,%eax
+ jnz .Ldec_key_ret
+ lea 16($key,$bits),$inp # points at the end of key schedule
+
+ $movkey ($key),%xmm0 # just swap
+ $movkey ($inp),%xmm1
+ $movkey %xmm0,($inp)
+ $movkey %xmm1,($key)
+ lea 16($key),$key
+ lea -16($inp),$inp
+
+.Ldec_key_inverse:
+ $movkey ($key),%xmm0 # swap and inverse
+ $movkey ($inp),%xmm1
+ aesimc %xmm0,%xmm0
+ aesimc %xmm1,%xmm1
+ lea 16($key),$key
+ lea -16($inp),$inp
+ cmp $key,$inp
+ $movkey %xmm0,16($inp)
+ $movkey %xmm1,-16($key)
+ ja .Ldec_key_inverse
+
+ $movkey ($key),%xmm0 # inverse middle
+ aesimc %xmm0,%xmm0
+ $movkey %xmm0,($inp)
+.Ldec_key_ret:
+ add \$8,%rsp
+ ret
+.LSEH_end_set_decrypt_key:
+.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key
+___
+
+# This is based on submission by
+#
+# Huang Ying <ying.huang@intel.com>
+# Vinodh Gopal <vinodh.gopal@intel.com>
+# Kahraman Akdemir
+#
+# Agressively optimized in respect to aeskeygenassist's critical path
+# and is contained in %xmm0-5 to meet Win64 ABI requirement.
+#
+$code.=<<___;
+.globl ${PREFIX}_set_encrypt_key
+.type ${PREFIX}_set_encrypt_key,\@abi-omnipotent
+.align 16
+${PREFIX}_set_encrypt_key:
+_aesni_set_encrypt_key:
+ .byte 0x48,0x83,0xEC,0x08 # sub rsp,8
+ test $inp,$inp
+ mov \$-1,%rax
+ jz .Lenc_key_ret
+ test $key,$key
+ jz .Lenc_key_ret
+
+ movups ($inp),%xmm0 # pull first 128 bits of *userKey
+ pxor %xmm4,%xmm4 # low dword of xmm4 is assumed 0
+ lea 16($key),%rax
+ cmp \$256,$bits
+ je .L14rounds
+ cmp \$192,$bits
+ je .L12rounds
+ cmp \$128,$bits
+ jne .Lbad_keybits
+
+.L10rounds:
+ mov \$9,$bits # 10 rounds for 128-bit key
+ $movkey %xmm0,($key) # round 0
+ aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1
+ call .Lkey_expansion_128_cold
+ aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2
+ call .Lkey_expansion_128
+ aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3
+ call .Lkey_expansion_128
+ aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4
+ call .Lkey_expansion_128
+ aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5
+ call .Lkey_expansion_128
+ aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6
+ call .Lkey_expansion_128
+ aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7
+ call .Lkey_expansion_128
+ aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8
+ call .Lkey_expansion_128
+ aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9
+ call .Lkey_expansion_128
+ aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10
+ call .Lkey_expansion_128
+ $movkey %xmm0,(%rax)
+ mov $bits,80(%rax) # 240(%rdx)
+ xor %eax,%eax
+ jmp .Lenc_key_ret
+
+.align 16
+.L12rounds:
+ movq 16($inp),%xmm2 # remaining 1/3 of *userKey
+ mov \$11,$bits # 12 rounds for 192
+ $movkey %xmm0,($key) # round 0
+ aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2
+ call .Lkey_expansion_192a_cold
+ aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3
+ call .Lkey_expansion_192b
+ aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5
+ call .Lkey_expansion_192a
+ aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6
+ call .Lkey_expansion_192b
+ aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8
+ call .Lkey_expansion_192a
+ aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9
+ call .Lkey_expansion_192b
+ aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11
+ call .Lkey_expansion_192a
+ aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12
+ call .Lkey_expansion_192b
+ $movkey %xmm0,(%rax)
+ mov $bits,48(%rax) # 240(%rdx)
+ xor %rax, %rax
+ jmp .Lenc_key_ret
+
+.align 16
+.L14rounds:
+ movups 16($inp),%xmm2 # remaning half of *userKey
+ mov \$13,$bits # 14 rounds for 256
+ lea 16(%rax),%rax
+ $movkey %xmm0,($key) # round 0
+ $movkey %xmm2,16($key) # round 1
+ aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2
+ call .Lkey_expansion_256a_cold
+ aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3
+ call .Lkey_expansion_256b
+ aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4
+ call .Lkey_expansion_256a
+ aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5
+ call .Lkey_expansion_256b
+ aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6
+ call .Lkey_expansion_256a
+ aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7
+ call .Lkey_expansion_256b
+ aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8
+ call .Lkey_expansion_256a
+ aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9
+ call .Lkey_expansion_256b
+ aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10
+ call .Lkey_expansion_256a
+ aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11
+ call .Lkey_expansion_256b
+ aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12
+ call .Lkey_expansion_256a
+ aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13
+ call .Lkey_expansion_256b
+ aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14
+ call .Lkey_expansion_256a
+ $movkey %xmm0,(%rax)
+ mov $bits,16(%rax) # 240(%rdx)
+ xor %rax,%rax
+ jmp .Lenc_key_ret
+
+.align 16
+.Lbad_keybits:
+ mov \$-2,%rax
+.Lenc_key_ret:
+ add \$8,%rsp
+ ret
+.LSEH_end_set_encrypt_key:
+
+.align 16
+.Lkey_expansion_128:
+ $movkey %xmm0,(%rax)
+ lea 16(%rax),%rax
+.Lkey_expansion_128_cold:
+ shufps \$0b00010000,%xmm0,%xmm4
+ pxor %xmm4, %xmm0
+ shufps \$0b10001100,%xmm0,%xmm4
+ pxor %xmm4, %xmm0
+ pshufd \$0b11111111,%xmm1,%xmm1 # critical path
+ pxor %xmm1,%xmm0
+ ret
+
+.align 16
+.Lkey_expansion_192a:
+ $movkey %xmm0,(%rax)
+ lea 16(%rax),%rax
+.Lkey_expansion_192a_cold:
+ movaps %xmm2, %xmm5
+.Lkey_expansion_192b_warm:
+ shufps \$0b00010000,%xmm0,%xmm4
+ movaps %xmm2,%xmm3
+ pxor %xmm4,%xmm0
+ shufps \$0b10001100,%xmm0,%xmm4
+ pslldq \$4,%xmm3
+ pxor %xmm4,%xmm0
+ pshufd \$0b01010101,%xmm1,%xmm1 # critical path
+ pxor %xmm3,%xmm2
+ pxor %xmm1,%xmm0
+ pshufd \$0b11111111,%xmm0,%xmm3
+ pxor %xmm3,%xmm2
+ ret
+
+.align 16
+.Lkey_expansion_192b:
+ movaps %xmm0,%xmm3
+ shufps \$0b01000100,%xmm0,%xmm5
+ $movkey %xmm5,(%rax)
+ shufps \$0b01001110,%xmm2,%xmm3
+ $movkey %xmm3,16(%rax)
+ lea 32(%rax),%rax
+ jmp .Lkey_expansion_192b_warm
+
+.align 16
+.Lkey_expansion_256a:
+ $movkey %xmm2,(%rax)
+ lea 16(%rax),%rax
+.Lkey_expansion_256a_cold:
+ shufps \$0b00010000,%xmm0,%xmm4
+ pxor %xmm4,%xmm0
+ shufps \$0b10001100,%xmm0,%xmm4
+ pxor %xmm4,%xmm0
+ pshufd \$0b11111111,%xmm1,%xmm1 # critical path
+ pxor %xmm1,%xmm0
+ ret
+
+.align 16
+.Lkey_expansion_256b:
+ $movkey %xmm0,(%rax)
+ lea 16(%rax),%rax
+
+ shufps \$0b00010000,%xmm2,%xmm4
+ pxor %xmm4,%xmm2
+ shufps \$0b10001100,%xmm2,%xmm4
+ pxor %xmm4,%xmm2
+ pshufd \$0b10101010,%xmm1,%xmm1 # critical path
+ pxor %xmm1,%xmm2
+ ret
+.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key
+___
+}
+
+$code.=<<___;
+.asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>"
+.align 64
+___
+
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+# CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+$rec="%rcx";
+$frame="%rdx";
+$context="%r8";
+$disp="%r9";
+
+$code.=<<___;
+.extern __imp_RtlVirtualUnwind
+.type cbc_se_handler,\@abi-omnipotent
+.align 16
+cbc_se_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 152($context),%rax # pull context->Rsp
+ mov 248($context),%rbx # pull context->Rip
+
+ lea .Lcbc_decrypt(%rip),%r10
+ cmp %r10,%rbx # context->Rip<"prologue" label
+ jb .Lin_prologue
+
+ lea .Lcbc_decrypt_body(%rip),%r10
+ cmp %r10,%rbx # context->Rip<cbc_decrypt_body
+ jb .Lrestore_rax
+
+ lea .Lcbc_ret(%rip),%r10
+ cmp %r10,%rbx # context->Rip>="epilogue" label
+ jae .Lin_prologue
+
+ lea 0(%rax),%rsi # top of stack
+ lea 512($context),%rdi # &context.Xmm6
+ mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax)
+ .long 0xa548f3fc # cld; rep movsq
+ lea 0x58(%rax),%rax # adjust stack pointer
+ jmp .Lin_prologue
+
+.Lrestore_rax:
+ mov 120($context),%rax
+.Lin_prologue:
+ mov 8(%rax),%rdi
+ mov 16(%rax),%rsi
+ mov %rax,152($context) # restore context->Rsp
+ mov %rsi,168($context) # restore context->Rsi
+ mov %rdi,176($context) # restore context->Rdi
+
+ jmp .Lcommon_seh_exit
+.size cbc_se_handler,.-cbc_se_handler
+
+.type ecb_se_handler,\@abi-omnipotent
+.align 16
+ecb_se_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 152($context),%rax # pull context->Rsp
+ mov 8(%rax),%rdi
+ mov 16(%rax),%rsi
+ mov %rsi,168($context) # restore context->Rsi
+ mov %rdi,176($context) # restore context->Rdi
+
+.Lcommon_seh_exit:
+
+ mov 40($disp),%rdi # disp->ContextRecord
+ mov $context,%rsi # context
+ mov \$154,%ecx # sizeof(CONTEXT)
+ .long 0xa548f3fc # cld; rep movsq
+
+ mov $disp,%rsi
+ xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
+ mov 8(%rsi),%rdx # arg2, disp->ImageBase
+ mov 0(%rsi),%r8 # arg3, disp->ControlPc
+ mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
+ mov 40(%rsi),%r10 # disp->ContextRecord
+ lea 56(%rsi),%r11 # &disp->HandlerData
+ lea 24(%rsi),%r12 # &disp->EstablisherFrame
+ mov %r10,32(%rsp) # arg5
+ mov %r11,40(%rsp) # arg6
+ mov %r12,48(%rsp) # arg7
+ mov %rcx,56(%rsp) # arg8, (NULL)
+ call *__imp_RtlVirtualUnwind(%rip)
+
+ mov \$1,%eax # ExceptionContinueSearch
+ add \$64,%rsp
+ popfq
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbp
+ pop %rbx
+ pop %rdi
+ pop %rsi
+ ret
+.size cbc_se_handler,.-cbc_se_handler
+
+.section .pdata
+.align 4
+ .rva .LSEH_begin_${PREFIX}_ecb_encrypt
+ .rva .LSEH_end_${PREFIX}_ecb_encrypt
+ .rva .LSEH_info_ecb
+
+ .rva .LSEH_begin_${PREFIX}_cbc_encrypt
+ .rva .LSEH_end_${PREFIX}_cbc_encrypt
+ .rva .LSEH_info_cbc
+
+ .rva ${PREFIX}_set_decrypt_key
+ .rva .LSEH_end_set_decrypt_key
+ .rva .LSEH_info_key
+
+ .rva ${PREFIX}_set_encrypt_key
+ .rva .LSEH_end_set_encrypt_key
+ .rva .LSEH_info_key
+.section .xdata
+.align 8
+.LSEH_info_ecb:
+ .byte 9,0,0,0
+ .rva ecb_se_handler
+.LSEH_info_cbc:
+ .byte 9,0,0,0
+ .rva cbc_se_handler
+.LSEH_info_key:
+ .byte 0x01,0x04,0x01,0x00
+ .byte 0x04,0x02,0x00,0x00
+___
+}
+
+sub rex {
+ local *opcode=shift;
+ my ($dst,$src)=@_;
+
+ if ($dst>=8 || $src>=8) {
+ $rex=0x40;
+ $rex|=0x04 if($dst>=8);
+ $rex|=0x01 if($src>=8);
+ push @opcode,$rex;
+ }
+}
+
+sub aesni {
+ my $line=shift;
+ my @opcode=(0x66);
+
+ if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
+ rex(\@opcode,$4,$3);
+ push @opcode,0x0f,0x3a,0xdf;
+ push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M
+ my $c=$2;
+ push @opcode,$c=~/^0/?oct($c):$c;
+ return ".byte\t".join(',',@opcode);
+ }
+ elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) {
+ my %opcodelet = (
+ "aesimc" => 0xdb,
+ "aesenc" => 0xdc, "aesenclast" => 0xdd,
+ "aesdec" => 0xde, "aesdeclast" => 0xdf
+ );
+ return undef if (!defined($opcodelet{$1}));
+ rex(\@opcode,$3,$2);
+ push @opcode,0x0f,0x38,$opcodelet{$1};
+ push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
+ return ".byte\t".join(',',@opcode);
+ }
+ return $line;
+}
+
+$code =~ s/\`([^\`]*)\`/eval($1)/gem;
+$code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem;
+
+print $code;
+
+close STDOUT;
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-02 08:48:08 +0000