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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/.
-# ====================================================================
-
-# 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,$bits
- srl %r5,6
- ar %r5,%r0
-
- lghi %r0,0 # query capability vector
- la %r1,16($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
-___
-}
-$code.=<<___;
-.string "AES for s390x, CRYPTOGAMS by <appro\@openssl.org>"
-___
-
-$code =~ s/\`([^\`]*)\`/eval $1/gem;
-print $code;