M7350/bootable/bootloader/lk/lib/openssl/crypto/aes/asm/aes-s390x.pl
2024-09-09 08:52:07 +00:00

1340 lines
31 KiB
Perl

#!/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/.
# ====================================================================
# AES for s390x.
# April 2007.
#
# Software performance improvement over gcc-generated code is ~70% and
# in absolute terms is ~73 cycles per byte processed with 128-bit key.
# You're likely to exclaim "why so slow?" Keep in mind that z-CPUs are
# *strictly* in-order execution and issued instruction [in this case
# load value from memory is critical] has to complete before execution
# flow proceeds. S-boxes are compressed to 2KB[+256B].
#
# As for hardware acceleration support. It's basically a "teaser," as
# it can and should be improved in several ways. Most notably support
# for CBC is not utilized, nor multiple blocks are ever processed.
# Then software key schedule can be postponed till hardware support
# detection... Performance improvement over assembler is reportedly
# ~2.5x, but can reach >8x [naturally on larger chunks] if proper
# support is implemented.
# May 2007.
#
# Implement AES_set_[en|de]crypt_key. Key schedule setup is avoided
# for 128-bit keys, if hardware support is detected.
# Januray 2009.
#
# Add support for hardware AES192/256 and reschedule instructions to
# minimize/avoid Address Generation Interlock hazard and to favour
# dual-issue z10 pipeline. This gave ~25% improvement on z10 and
# almost 50% on z9. The gain is smaller on z10, because being dual-
# issue z10 makes it improssible to eliminate the interlock condition:
# critial path is not long enough. Yet it spends ~24 cycles per byte
# processed with 128-bit key.
#
# Unlike previous version hardware support detection takes place only
# at the moment of key schedule setup, which is denoted in key->rounds.
# This is done, because deferred key setup can't be made MT-safe, not
# for key lengthes longer than 128 bits.
#
# Add AES_cbc_encrypt, which gives incredible performance improvement,
# it was measured to be ~6.6x. It's less than previously mentioned 8x,
# because software implementation was optimized.
$softonly=0; # allow hardware support
$t0="%r0"; $mask="%r0";
$t1="%r1";
$t2="%r2"; $inp="%r2";
$t3="%r3"; $out="%r3"; $bits="%r3";
$key="%r4";
$i1="%r5";
$i2="%r6";
$i3="%r7";
$s0="%r8";
$s1="%r9";
$s2="%r10";
$s3="%r11";
$tbl="%r12";
$rounds="%r13";
$ra="%r14";
$sp="%r15";
sub _data_word()
{ my $i;
while(defined($i=shift)) { $code.=sprintf".long\t0x%08x,0x%08x\n",$i,$i; }
}
$code=<<___;
.text
.type AES_Te,\@object
.align 256
AES_Te:
___
&_data_word(
0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d,
0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554,
0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d,
0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a,
0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87,
0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b,
0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea,
0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b,
0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a,
0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f,
0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108,
0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f,
0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e,
0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5,
0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d,
0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f,
0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e,
0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb,
0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce,
0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497,
0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c,
0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed,
0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b,
0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a,
0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16,
0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594,
0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81,
0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3,
0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a,
0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504,
0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163,
0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d,
0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f,
0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739,
0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47,
0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395,
0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f,
0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883,
0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c,
0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76,
0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e,
0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4,
0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6,
0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b,
0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7,
0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0,
0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25,
0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818,
0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72,
0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651,
0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21,
0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85,
0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa,
0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12,
0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0,
0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9,
0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133,
0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7,
0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920,
0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a,
0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17,
0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8,
0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11,
0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a);
$code.=<<___;
# Te4[256]
.byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5
.byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76
.byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0
.byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0
.byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc
.byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15
.byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a
.byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75
.byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0
.byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84
.byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b
.byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf
.byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85
.byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8
.byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5
.byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2
.byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17
.byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73
.byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88
.byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb
.byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c
.byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79
.byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9
.byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08
.byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6
.byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a
.byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e
.byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e
.byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94
.byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf
.byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68
.byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
# rcon[]
.long 0x01000000, 0x02000000, 0x04000000, 0x08000000
.long 0x10000000, 0x20000000, 0x40000000, 0x80000000
.long 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0
.align 256
.size AES_Te,.-AES_Te
# void AES_encrypt(const unsigned char *inp, unsigned char *out,
# const AES_KEY *key) {
.globl AES_encrypt
.type AES_encrypt,\@function
AES_encrypt:
___
$code.=<<___ if (!$softonly);
l %r0,240($key)
lhi %r1,16
clr %r0,%r1
jl .Lesoft
la %r1,0($key)
#la %r2,0($inp)
la %r4,0($out)
lghi %r3,16 # single block length
.long 0xb92e0042 # km %r4,%r2
brc 1,.-4 # can this happen?
br %r14
.align 64
.Lesoft:
___
$code.=<<___;
stmg %r3,$ra,24($sp)
llgf $s0,0($inp)
llgf $s1,4($inp)
llgf $s2,8($inp)
llgf $s3,12($inp)
larl $tbl,AES_Te
bras $ra,_s390x_AES_encrypt
lg $out,24($sp)
st $s0,0($out)
st $s1,4($out)
st $s2,8($out)
st $s3,12($out)
lmg %r6,$ra,48($sp)
br $ra
.size AES_encrypt,.-AES_encrypt
.type _s390x_AES_encrypt,\@function
.align 16
_s390x_AES_encrypt:
stg $ra,152($sp)
x $s0,0($key)
x $s1,4($key)
x $s2,8($key)
x $s3,12($key)
l $rounds,240($key)
llill $mask,`0xff<<3`
aghi $rounds,-1
j .Lenc_loop
.align 16
.Lenc_loop:
sllg $t1,$s0,`0+3`
srlg $t2,$s0,`8-3`
srlg $t3,$s0,`16-3`
srl $s0,`24-3`
nr $s0,$mask
ngr $t1,$mask
nr $t2,$mask
nr $t3,$mask
srlg $i1,$s1,`16-3` # i0
sllg $i2,$s1,`0+3`
srlg $i3,$s1,`8-3`
srl $s1,`24-3`
nr $i1,$mask
nr $s1,$mask
ngr $i2,$mask
nr $i3,$mask
l $s0,0($s0,$tbl) # Te0[s0>>24]
l $t1,1($t1,$tbl) # Te3[s0>>0]
l $t2,2($t2,$tbl) # Te2[s0>>8]
l $t3,3($t3,$tbl) # Te1[s0>>16]
x $s0,3($i1,$tbl) # Te1[s1>>16]
l $s1,0($s1,$tbl) # Te0[s1>>24]
x $t2,1($i2,$tbl) # Te3[s1>>0]
x $t3,2($i3,$tbl) # Te2[s1>>8]
srlg $i1,$s2,`8-3` # i0
srlg $i2,$s2,`16-3` # i1
nr $i1,$mask
nr $i2,$mask
sllg $i3,$s2,`0+3`
srl $s2,`24-3`
nr $s2,$mask
ngr $i3,$mask
xr $s1,$t1
srlg $ra,$s3,`8-3` # i1
sllg $t1,$s3,`0+3` # i0
nr $ra,$mask
la $key,16($key)
ngr $t1,$mask
x $s0,2($i1,$tbl) # Te2[s2>>8]
x $s1,3($i2,$tbl) # Te1[s2>>16]
l $s2,0($s2,$tbl) # Te0[s2>>24]
x $t3,1($i3,$tbl) # Te3[s2>>0]
srlg $i3,$s3,`16-3` # i2
xr $s2,$t2
srl $s3,`24-3`
nr $i3,$mask
nr $s3,$mask
x $s0,0($key)
x $s1,4($key)
x $s2,8($key)
x $t3,12($key)
x $s0,1($t1,$tbl) # Te3[s3>>0]
x $s1,2($ra,$tbl) # Te2[s3>>8]
x $s2,3($i3,$tbl) # Te1[s3>>16]
l $s3,0($s3,$tbl) # Te0[s3>>24]
xr $s3,$t3
brct $rounds,.Lenc_loop
.align 16
sllg $t1,$s0,`0+3`
srlg $t2,$s0,`8-3`
ngr $t1,$mask
srlg $t3,$s0,`16-3`
srl $s0,`24-3`
nr $s0,$mask
nr $t2,$mask
nr $t3,$mask
srlg $i1,$s1,`16-3` # i0
sllg $i2,$s1,`0+3`
ngr $i2,$mask
srlg $i3,$s1,`8-3`
srl $s1,`24-3`
nr $i1,$mask
nr $s1,$mask
nr $i3,$mask
llgc $s0,2($s0,$tbl) # Te4[s0>>24]
llgc $t1,2($t1,$tbl) # Te4[s0>>0]
sll $s0,24
llgc $t2,2($t2,$tbl) # Te4[s0>>8]
llgc $t3,2($t3,$tbl) # Te4[s0>>16]
sll $t2,8
sll $t3,16
llgc $i1,2($i1,$tbl) # Te4[s1>>16]
llgc $s1,2($s1,$tbl) # Te4[s1>>24]
llgc $i2,2($i2,$tbl) # Te4[s1>>0]
llgc $i3,2($i3,$tbl) # Te4[s1>>8]
sll $i1,16
sll $s1,24
sll $i3,8
or $s0,$i1
or $s1,$t1
or $t2,$i2
or $t3,$i3
srlg $i1,$s2,`8-3` # i0
srlg $i2,$s2,`16-3` # i1
nr $i1,$mask
nr $i2,$mask
sllg $i3,$s2,`0+3`
srl $s2,`24-3`
ngr $i3,$mask
nr $s2,$mask
sllg $t1,$s3,`0+3` # i0
srlg $ra,$s3,`8-3` # i1
ngr $t1,$mask
llgc $i1,2($i1,$tbl) # Te4[s2>>8]
llgc $i2,2($i2,$tbl) # Te4[s2>>16]
sll $i1,8
llgc $s2,2($s2,$tbl) # Te4[s2>>24]
llgc $i3,2($i3,$tbl) # Te4[s2>>0]
sll $i2,16
nr $ra,$mask
sll $s2,24
or $s0,$i1
or $s1,$i2
or $s2,$t2
or $t3,$i3
srlg $i3,$s3,`16-3` # i2
srl $s3,`24-3`
nr $i3,$mask
nr $s3,$mask
l $t0,16($key)
l $t2,20($key)
llgc $i1,2($t1,$tbl) # Te4[s3>>0]
llgc $i2,2($ra,$tbl) # Te4[s3>>8]
llgc $i3,2($i3,$tbl) # Te4[s3>>16]
llgc $s3,2($s3,$tbl) # Te4[s3>>24]
sll $i2,8
sll $i3,16
sll $s3,24
or $s0,$i1
or $s1,$i2
or $s2,$i3
or $s3,$t3
lg $ra,152($sp)
xr $s0,$t0
xr $s1,$t2
x $s2,24($key)
x $s3,28($key)
br $ra
.size _s390x_AES_encrypt,.-_s390x_AES_encrypt
___
$code.=<<___;
.type AES_Td,\@object
.align 256
AES_Td:
___
&_data_word(
0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96,
0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393,
0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25,
0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f,
0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1,
0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6,
0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da,
0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844,
0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd,
0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4,
0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45,
0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94,
0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7,
0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a,
0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5,
0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c,
0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1,
0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a,
0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75,
0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051,
0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46,
0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff,
0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77,
0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb,
0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000,
0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e,
0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927,
0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a,
0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e,
0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16,
0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d,
0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8,
0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd,
0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34,
0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163,
0xd731dcca, 0x42638510, 0x13972240, 0x84c61120,
0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d,
0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0,
0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422,
0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef,
0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36,
0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4,
0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662,
0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5,
0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3,
0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b,
0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8,
0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6,
0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6,
0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0,
0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815,
0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f,
0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df,
0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f,
0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e,
0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713,
0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89,
0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c,
0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf,
0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86,
0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f,
0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541,
0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190,
0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742);
$code.=<<___;
# Td4[256]
.byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38
.byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
.byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
.byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
.byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
.byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
.byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
.byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
.byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
.byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
.byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
.byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
.byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
.byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
.byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
.byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
.byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
.byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
.byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
.byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
.byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
.byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
.byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
.byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
.byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
.byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
.byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
.byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
.byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
.byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
.byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
.byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
.size AES_Td,.-AES_Td
# void AES_decrypt(const unsigned char *inp, unsigned char *out,
# const AES_KEY *key) {
.globl AES_decrypt
.type AES_decrypt,\@function
AES_decrypt:
___
$code.=<<___ if (!$softonly);
l %r0,240($key)
lhi %r1,16
clr %r0,%r1
jl .Ldsoft
la %r1,0($key)
#la %r2,0($inp)
la %r4,0($out)
lghi %r3,16 # single block length
.long 0xb92e0042 # km %r4,%r2
brc 1,.-4 # can this happen?
br %r14
.align 64
.Ldsoft:
___
$code.=<<___;
stmg %r3,$ra,24($sp)
llgf $s0,0($inp)
llgf $s1,4($inp)
llgf $s2,8($inp)
llgf $s3,12($inp)
larl $tbl,AES_Td
bras $ra,_s390x_AES_decrypt
lg $out,24($sp)
st $s0,0($out)
st $s1,4($out)
st $s2,8($out)
st $s3,12($out)
lmg %r6,$ra,48($sp)
br $ra
.size AES_decrypt,.-AES_decrypt
.type _s390x_AES_decrypt,\@function
.align 16
_s390x_AES_decrypt:
stg $ra,152($sp)
x $s0,0($key)
x $s1,4($key)
x $s2,8($key)
x $s3,12($key)
l $rounds,240($key)
llill $mask,`0xff<<3`
aghi $rounds,-1
j .Ldec_loop
.align 16
.Ldec_loop:
srlg $t1,$s0,`16-3`
srlg $t2,$s0,`8-3`
sllg $t3,$s0,`0+3`
srl $s0,`24-3`
nr $s0,$mask
nr $t1,$mask
nr $t2,$mask
ngr $t3,$mask
sllg $i1,$s1,`0+3` # i0
srlg $i2,$s1,`16-3`
srlg $i3,$s1,`8-3`
srl $s1,`24-3`
ngr $i1,$mask
nr $s1,$mask
nr $i2,$mask
nr $i3,$mask
l $s0,0($s0,$tbl) # Td0[s0>>24]
l $t1,3($t1,$tbl) # Td1[s0>>16]
l $t2,2($t2,$tbl) # Td2[s0>>8]
l $t3,1($t3,$tbl) # Td3[s0>>0]
x $s0,1($i1,$tbl) # Td3[s1>>0]
l $s1,0($s1,$tbl) # Td0[s1>>24]
x $t2,3($i2,$tbl) # Td1[s1>>16]
x $t3,2($i3,$tbl) # Td2[s1>>8]
srlg $i1,$s2,`8-3` # i0
sllg $i2,$s2,`0+3` # i1
srlg $i3,$s2,`16-3`
srl $s2,`24-3`
nr $i1,$mask
ngr $i2,$mask
nr $s2,$mask
nr $i3,$mask
xr $s1,$t1
srlg $ra,$s3,`8-3` # i1
srlg $t1,$s3,`16-3` # i0
nr $ra,$mask
la $key,16($key)
nr $t1,$mask
x $s0,2($i1,$tbl) # Td2[s2>>8]
x $s1,1($i2,$tbl) # Td3[s2>>0]
l $s2,0($s2,$tbl) # Td0[s2>>24]
x $t3,3($i3,$tbl) # Td1[s2>>16]
sllg $i3,$s3,`0+3` # i2
srl $s3,`24-3`
ngr $i3,$mask
nr $s3,$mask
xr $s2,$t2
x $s0,0($key)
x $s1,4($key)
x $s2,8($key)
x $t3,12($key)
x $s0,3($t1,$tbl) # Td1[s3>>16]
x $s1,2($ra,$tbl) # Td2[s3>>8]
x $s2,1($i3,$tbl) # Td3[s3>>0]
l $s3,0($s3,$tbl) # Td0[s3>>24]
xr $s3,$t3
brct $rounds,.Ldec_loop
.align 16
l $t1,`2048+0`($tbl) # prefetch Td4
l $t2,`2048+64`($tbl)
l $t3,`2048+128`($tbl)
l $i1,`2048+192`($tbl)
llill $mask,0xff
srlg $i3,$s0,24 # i0
srlg $t1,$s0,16
srlg $t2,$s0,8
nr $s0,$mask # i3
nr $t1,$mask
srlg $i1,$s1,24
nr $t2,$mask
srlg $i2,$s1,16
srlg $ra,$s1,8
nr $s1,$mask # i0
nr $i2,$mask
nr $ra,$mask
llgc $i3,2048($i3,$tbl) # Td4[s0>>24]
llgc $t1,2048($t1,$tbl) # Td4[s0>>16]
llgc $t2,2048($t2,$tbl) # Td4[s0>>8]
sll $t1,16
llgc $t3,2048($s0,$tbl) # Td4[s0>>0]
sllg $s0,$i3,24
sll $t2,8
llgc $s1,2048($s1,$tbl) # Td4[s1>>0]
llgc $i1,2048($i1,$tbl) # Td4[s1>>24]
llgc $i2,2048($i2,$tbl) # Td4[s1>>16]
sll $i1,24
llgc $i3,2048($ra,$tbl) # Td4[s1>>8]
sll $i2,16
sll $i3,8
or $s0,$s1
or $t1,$i1
or $t2,$i2
or $t3,$i3
srlg $i1,$s2,8 # i0
srlg $i2,$s2,24
srlg $i3,$s2,16
nr $s2,$mask # i1
nr $i1,$mask
nr $i3,$mask
llgc $i1,2048($i1,$tbl) # Td4[s2>>8]
llgc $s1,2048($s2,$tbl) # Td4[s2>>0]
llgc $i2,2048($i2,$tbl) # Td4[s2>>24]
llgc $i3,2048($i3,$tbl) # Td4[s2>>16]
sll $i1,8
sll $i2,24
or $s0,$i1
sll $i3,16
or $t2,$i2
or $t3,$i3
srlg $i1,$s3,16 # i0
srlg $i2,$s3,8 # i1
srlg $i3,$s3,24
nr $s3,$mask # i2
nr $i1,$mask
nr $i2,$mask
lg $ra,152($sp)
or $s1,$t1
l $t0,16($key)
l $t1,20($key)
llgc $i1,2048($i1,$tbl) # Td4[s3>>16]
llgc $i2,2048($i2,$tbl) # Td4[s3>>8]
sll $i1,16
llgc $s2,2048($s3,$tbl) # Td4[s3>>0]
llgc $s3,2048($i3,$tbl) # Td4[s3>>24]
sll $i2,8
sll $s3,24
or $s0,$i1
or $s1,$i2
or $s2,$t2
or $s3,$t3
xr $s0,$t0
xr $s1,$t1
x $s2,24($key)
x $s3,28($key)
br $ra
.size _s390x_AES_decrypt,.-_s390x_AES_decrypt
___
$code.=<<___;
# void AES_set_encrypt_key(const unsigned char *in, int bits,
# AES_KEY *key) {
.globl AES_set_encrypt_key
.type AES_set_encrypt_key,\@function
.align 16
AES_set_encrypt_key:
lghi $t0,0
clgr $inp,$t0
je .Lminus1
clgr $key,$t0
je .Lminus1
lghi $t0,128
clr $bits,$t0
je .Lproceed
lghi $t0,192
clr $bits,$t0
je .Lproceed
lghi $t0,256
clr $bits,$t0
je .Lproceed
lghi %r2,-2
br %r14
.align 16
.Lproceed:
___
$code.=<<___ if (!$softonly);
# convert bits to km code, [128,192,256]->[18,19,20]
lhi %r5,-128
lhi %r0,18
ar %r5,$bits
srl %r5,6
ar %r5,%r0
larl %r1,OPENSSL_s390xcap_P
lg %r0,0(%r1)
tmhl %r0,0x4000 # check for message-security assist
jz .Lekey_internal
lghi %r0,0 # query capability vector
la %r1,16($sp)
.long 0xb92f0042 # kmc %r4,%r2
llihh %r1,0x8000
srlg %r1,%r1,0(%r5)
ng %r1,16($sp)
jz .Lekey_internal
lmg %r0,%r1,0($inp) # just copy 128 bits...
stmg %r0,%r1,0($key)
lhi %r0,192
cr $bits,%r0
jl 1f
lg %r1,16($inp)
stg %r1,16($key)
je 1f
lg %r1,24($inp)
stg %r1,24($key)
1: st $bits,236($key) # save bits
st %r5,240($key) # save km code
lghi %r2,0
br %r14
___
$code.=<<___;
.align 16
.Lekey_internal:
stmg %r6,%r13,48($sp) # all non-volatile regs
larl $tbl,AES_Te+2048
llgf $s0,0($inp)
llgf $s1,4($inp)
llgf $s2,8($inp)
llgf $s3,12($inp)
st $s0,0($key)
st $s1,4($key)
st $s2,8($key)
st $s3,12($key)
lghi $t0,128
cr $bits,$t0
jne .Lnot128
llill $mask,0xff
lghi $t3,0 # i=0
lghi $rounds,10
st $rounds,240($key)
llgfr $t2,$s3 # temp=rk[3]
srlg $i1,$s3,8
srlg $i2,$s3,16
srlg $i3,$s3,24
nr $t2,$mask
nr $i1,$mask
nr $i2,$mask
.align 16
.L128_loop:
la $t2,0($t2,$tbl)
la $i1,0($i1,$tbl)
la $i2,0($i2,$tbl)
la $i3,0($i3,$tbl)
icm $t2,2,0($t2) # Te4[rk[3]>>0]<<8
icm $t2,4,0($i1) # Te4[rk[3]>>8]<<16
icm $t2,8,0($i2) # Te4[rk[3]>>16]<<24
icm $t2,1,0($i3) # Te4[rk[3]>>24]
x $t2,256($t3,$tbl) # rcon[i]
xr $s0,$t2 # rk[4]=rk[0]^...
xr $s1,$s0 # rk[5]=rk[1]^rk[4]
xr $s2,$s1 # rk[6]=rk[2]^rk[5]
xr $s3,$s2 # rk[7]=rk[3]^rk[6]
llgfr $t2,$s3 # temp=rk[3]
srlg $i1,$s3,8
srlg $i2,$s3,16
nr $t2,$mask
nr $i1,$mask
srlg $i3,$s3,24
nr $i2,$mask
st $s0,16($key)
st $s1,20($key)
st $s2,24($key)
st $s3,28($key)
la $key,16($key) # key+=4
la $t3,4($t3) # i++
brct $rounds,.L128_loop
lghi %r2,0
lmg %r6,%r13,48($sp)
br $ra
.align 16
.Lnot128:
llgf $t0,16($inp)
llgf $t1,20($inp)
st $t0,16($key)
st $t1,20($key)
lghi $t0,192
cr $bits,$t0
jne .Lnot192
llill $mask,0xff
lghi $t3,0 # i=0
lghi $rounds,12
st $rounds,240($key)
lghi $rounds,8
srlg $i1,$t1,8
srlg $i2,$t1,16
srlg $i3,$t1,24
nr $t1,$mask
nr $i1,$mask
nr $i2,$mask
.align 16
.L192_loop:
la $t1,0($t1,$tbl)
la $i1,0($i1,$tbl)
la $i2,0($i2,$tbl)
la $i3,0($i3,$tbl)
icm $t1,2,0($t1) # Te4[rk[5]>>0]<<8
icm $t1,4,0($i1) # Te4[rk[5]>>8]<<16
icm $t1,8,0($i2) # Te4[rk[5]>>16]<<24
icm $t1,1,0($i3) # Te4[rk[5]>>24]
x $t1,256($t3,$tbl) # rcon[i]
xr $s0,$t1 # rk[6]=rk[0]^...
xr $s1,$s0 # rk[7]=rk[1]^rk[6]
xr $s2,$s1 # rk[8]=rk[2]^rk[7]
xr $s3,$s2 # rk[9]=rk[3]^rk[8]
st $s0,24($key)
st $s1,28($key)
st $s2,32($key)
st $s3,36($key)
brct $rounds,.L192_continue
lghi %r2,0
lmg %r6,%r13,48($sp)
br $ra
.align 16
.L192_continue:
lgr $t1,$s3
x $t1,16($key) # rk[10]=rk[4]^rk[9]
st $t1,40($key)
x $t1,20($key) # rk[11]=rk[5]^rk[10]
st $t1,44($key)
srlg $i1,$t1,8
srlg $i2,$t1,16
srlg $i3,$t1,24
nr $t1,$mask
nr $i1,$mask
nr $i2,$mask
la $key,24($key) # key+=6
la $t3,4($t3) # i++
j .L192_loop
.align 16
.Lnot192:
llgf $t0,24($inp)
llgf $t1,28($inp)
st $t0,24($key)
st $t1,28($key)
llill $mask,0xff
lghi $t3,0 # i=0
lghi $rounds,14
st $rounds,240($key)
lghi $rounds,7
srlg $i1,$t1,8
srlg $i2,$t1,16
srlg $i3,$t1,24
nr $t1,$mask
nr $i1,$mask
nr $i2,$mask
.align 16
.L256_loop:
la $t1,0($t1,$tbl)
la $i1,0($i1,$tbl)
la $i2,0($i2,$tbl)
la $i3,0($i3,$tbl)
icm $t1,2,0($t1) # Te4[rk[7]>>0]<<8
icm $t1,4,0($i1) # Te4[rk[7]>>8]<<16
icm $t1,8,0($i2) # Te4[rk[7]>>16]<<24
icm $t1,1,0($i3) # Te4[rk[7]>>24]
x $t1,256($t3,$tbl) # rcon[i]
xr $s0,$t1 # rk[8]=rk[0]^...
xr $s1,$s0 # rk[9]=rk[1]^rk[8]
xr $s2,$s1 # rk[10]=rk[2]^rk[9]
xr $s3,$s2 # rk[11]=rk[3]^rk[10]
st $s0,32($key)
st $s1,36($key)
st $s2,40($key)
st $s3,44($key)
brct $rounds,.L256_continue
lghi %r2,0
lmg %r6,%r13,48($sp)
br $ra
.align 16
.L256_continue:
lgr $t1,$s3 # temp=rk[11]
srlg $i1,$s3,8
srlg $i2,$s3,16
srlg $i3,$s3,24
nr $t1,$mask
nr $i1,$mask
nr $i2,$mask
la $t1,0($t1,$tbl)
la $i1,0($i1,$tbl)
la $i2,0($i2,$tbl)
la $i3,0($i3,$tbl)
llgc $t1,0($t1) # Te4[rk[11]>>0]
icm $t1,2,0($i1) # Te4[rk[11]>>8]<<8
icm $t1,4,0($i2) # Te4[rk[11]>>16]<<16
icm $t1,8,0($i3) # Te4[rk[11]>>24]<<24
x $t1,16($key) # rk[12]=rk[4]^...
st $t1,48($key)
x $t1,20($key) # rk[13]=rk[5]^rk[12]
st $t1,52($key)
x $t1,24($key) # rk[14]=rk[6]^rk[13]
st $t1,56($key)
x $t1,28($key) # rk[15]=rk[7]^rk[14]
st $t1,60($key)
srlg $i1,$t1,8
srlg $i2,$t1,16
srlg $i3,$t1,24
nr $t1,$mask
nr $i1,$mask
nr $i2,$mask
la $key,32($key) # key+=8
la $t3,4($t3) # i++
j .L256_loop
.Lminus1:
lghi %r2,-1
br $ra
.size AES_set_encrypt_key,.-AES_set_encrypt_key
# void AES_set_decrypt_key(const unsigned char *in, int bits,
# AES_KEY *key) {
.globl AES_set_decrypt_key
.type AES_set_decrypt_key,\@function
.align 16
AES_set_decrypt_key:
stg $key,32($sp) # I rely on AES_set_encrypt_key to
stg $ra,112($sp) # save non-volatile registers!
bras $ra,AES_set_encrypt_key
lg $key,32($sp)
lg $ra,112($sp)
ltgr %r2,%r2
bnzr $ra
___
$code.=<<___ if (!$softonly);
l $t0,240($key)
lhi $t1,16
cr $t0,$t1
jl .Lgo
oill $t0,0x80 # set "decrypt" bit
st $t0,240($key)
br $ra
.align 16
.Ldkey_internal:
stg $key,32($sp)
stg $ra,40($sp)
bras $ra,.Lekey_internal
lg $key,32($sp)
lg $ra,40($sp)
___
$code.=<<___;
.Lgo: llgf $rounds,240($key)
la $i1,0($key)
sllg $i2,$rounds,4
la $i2,0($i2,$key)
srl $rounds,1
lghi $t1,-16
.align 16
.Linv: lmg $s0,$s1,0($i1)
lmg $s2,$s3,0($i2)
stmg $s0,$s1,0($i2)
stmg $s2,$s3,0($i1)
la $i1,16($i1)
la $i2,0($t1,$i2)
brct $rounds,.Linv
___
$mask80=$i1;
$mask1b=$i2;
$maskfe=$i3;
$code.=<<___;
llgf $rounds,240($key)
aghi $rounds,-1
sll $rounds,2 # (rounds-1)*4
llilh $mask80,0x8080
llilh $mask1b,0x1b1b
llilh $maskfe,0xfefe
oill $mask80,0x8080
oill $mask1b,0x1b1b
oill $maskfe,0xfefe
.align 16
.Lmix: l $s0,16($key) # tp1
lr $s1,$s0
ngr $s1,$mask80
srlg $t1,$s1,7
slr $s1,$t1
nr $s1,$mask1b
sllg $t1,$s0,1
nr $t1,$maskfe
xr $s1,$t1 # tp2
lr $s2,$s1
ngr $s2,$mask80
srlg $t1,$s2,7
slr $s2,$t1
nr $s2,$mask1b
sllg $t1,$s1,1
nr $t1,$maskfe
xr $s2,$t1 # tp4
lr $s3,$s2
ngr $s3,$mask80
srlg $t1,$s3,7
slr $s3,$t1
nr $s3,$mask1b
sllg $t1,$s2,1
nr $t1,$maskfe
xr $s3,$t1 # tp8
xr $s1,$s0 # tp2^tp1
xr $s2,$s0 # tp4^tp1
rll $s0,$s0,24 # = ROTATE(tp1,8)
xr $s2,$s3 # ^=tp8
xr $s0,$s1 # ^=tp2^tp1
xr $s1,$s3 # tp2^tp1^tp8
xr $s0,$s2 # ^=tp4^tp1^tp8
rll $s1,$s1,8
rll $s2,$s2,16
xr $s0,$s1 # ^= ROTATE(tp8^tp2^tp1,24)
rll $s3,$s3,24
xr $s0,$s2 # ^= ROTATE(tp8^tp4^tp1,16)
xr $s0,$s3 # ^= ROTATE(tp8,8)
st $s0,16($key)
la $key,4($key)
brct $rounds,.Lmix
lmg %r6,%r13,48($sp)# as was saved by AES_set_encrypt_key!
lghi %r2,0
br $ra
.size AES_set_decrypt_key,.-AES_set_decrypt_key
___
#void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
# size_t length, const AES_KEY *key,
# unsigned char *ivec, const int enc)
{
my $inp="%r2";
my $out="%r4"; # length and out are swapped
my $len="%r3";
my $key="%r5";
my $ivp="%r6";
$code.=<<___;
.globl AES_cbc_encrypt
.type AES_cbc_encrypt,\@function
.align 16
AES_cbc_encrypt:
xgr %r3,%r4 # flip %r3 and %r4, out and len
xgr %r4,%r3
xgr %r3,%r4
___
$code.=<<___ if (!$softonly);
lhi %r0,16
cl %r0,240($key)
jh .Lcbc_software
lg %r0,0($ivp) # copy ivec
lg %r1,8($ivp)
stmg %r0,%r1,16($sp)
lmg %r0,%r1,0($key) # copy key, cover 256 bit
stmg %r0,%r1,32($sp)
lmg %r0,%r1,16($key)
stmg %r0,%r1,48($sp)
l %r0,240($key) # load kmc code
lghi $key,15 # res=len%16, len-=res;
ngr $key,$len
slgr $len,$key
la %r1,16($sp) # parameter block - ivec || key
jz .Lkmc_truncated
.long 0xb92f0042 # kmc %r4,%r2
brc 1,.-4 # pay attention to "partial completion"
ltr $key,$key
jnz .Lkmc_truncated
.Lkmc_done:
lmg %r0,%r1,16($sp) # copy ivec to caller
stg %r0,0($ivp)
stg %r1,8($ivp)
br $ra
.align 16
.Lkmc_truncated:
ahi $key,-1 # it's the way it's encoded in mvc
tmll %r0,0x80
jnz .Lkmc_truncated_dec
lghi %r1,0
stg %r1,128($sp)
stg %r1,136($sp)
bras %r1,1f
mvc 128(1,$sp),0($inp)
1: ex $key,0(%r1)
la %r1,16($sp) # restore parameter block
la $inp,128($sp)
lghi $len,16
.long 0xb92f0042 # kmc %r4,%r2
j .Lkmc_done
.align 16
.Lkmc_truncated_dec:
stg $out,64($sp)
la $out,128($sp)
lghi $len,16
.long 0xb92f0042 # kmc %r4,%r2
lg $out,64($sp)
bras %r1,2f
mvc 0(1,$out),128($sp)
2: ex $key,0(%r1)
j .Lkmc_done
.align 16
.Lcbc_software:
___
$code.=<<___;
stmg $key,$ra,40($sp)
lhi %r0,0
cl %r0,164($sp)
je .Lcbc_decrypt
larl $tbl,AES_Te
llgf $s0,0($ivp)
llgf $s1,4($ivp)
llgf $s2,8($ivp)
llgf $s3,12($ivp)
lghi $t0,16
slgr $len,$t0
brc 4,.Lcbc_enc_tail # if borrow
.Lcbc_enc_loop:
stmg $inp,$out,16($sp)
x $s0,0($inp)
x $s1,4($inp)
x $s2,8($inp)
x $s3,12($inp)
lgr %r4,$key
bras $ra,_s390x_AES_encrypt
lmg $inp,$key,16($sp)
st $s0,0($out)
st $s1,4($out)
st $s2,8($out)
st $s3,12($out)
la $inp,16($inp)
la $out,16($out)
lghi $t0,16
ltgr $len,$len
jz .Lcbc_enc_done
slgr $len,$t0
brc 4,.Lcbc_enc_tail # if borrow
j .Lcbc_enc_loop
.align 16
.Lcbc_enc_done:
lg $ivp,48($sp)
st $s0,0($ivp)
st $s1,4($ivp)
st $s2,8($ivp)
st $s3,12($ivp)
lmg %r7,$ra,56($sp)
br $ra
.align 16
.Lcbc_enc_tail:
aghi $len,15
lghi $t0,0
stg $t0,128($sp)
stg $t0,136($sp)
bras $t1,3f
mvc 128(1,$sp),0($inp)
3: ex $len,0($t1)
lghi $len,0
la $inp,128($sp)
j .Lcbc_enc_loop
.align 16
.Lcbc_decrypt:
larl $tbl,AES_Td
lg $t0,0($ivp)
lg $t1,8($ivp)
stmg $t0,$t1,128($sp)
.Lcbc_dec_loop:
stmg $inp,$out,16($sp)
llgf $s0,0($inp)
llgf $s1,4($inp)
llgf $s2,8($inp)
llgf $s3,12($inp)
lgr %r4,$key
bras $ra,_s390x_AES_decrypt
lmg $inp,$key,16($sp)
sllg $s0,$s0,32
sllg $s2,$s2,32
lr $s0,$s1
lr $s2,$s3
lg $t0,0($inp)
lg $t1,8($inp)
xg $s0,128($sp)
xg $s2,136($sp)
lghi $s1,16
slgr $len,$s1
brc 4,.Lcbc_dec_tail # if borrow
brc 2,.Lcbc_dec_done # if zero
stg $s0,0($out)
stg $s2,8($out)
stmg $t0,$t1,128($sp)
la $inp,16($inp)
la $out,16($out)
j .Lcbc_dec_loop
.Lcbc_dec_done:
stg $s0,0($out)
stg $s2,8($out)
.Lcbc_dec_exit:
lmg $ivp,$ra,48($sp)
stmg $t0,$t1,0($ivp)
br $ra
.align 16
.Lcbc_dec_tail:
aghi $len,15
stg $s0,128($sp)
stg $s2,136($sp)
bras $s1,4f
mvc 0(1,$out),128($sp)
4: ex $len,0($s1)
j .Lcbc_dec_exit
.size AES_cbc_encrypt,.-AES_cbc_encrypt
.comm OPENSSL_s390xcap_P,8,8
___
}
$code.=<<___;
.string "AES for s390x, CRYPTOGAMS by <appro\@openssl.org>"
___
$code =~ s/\`([^\`]*)\`/eval $1/gem;
print $code;