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Diffstat (limited to 'openssl/crypto/aes/asm/aes-s390x.pl')
| -rw-r--r-- | openssl/crypto/aes/asm/aes-s390x.pl | 1339 |
1 files changed, 1339 insertions, 0 deletions
diff --git a/openssl/crypto/aes/asm/aes-s390x.pl b/openssl/crypto/aes/asm/aes-s390x.pl new file mode 100644 index 0000000..7e01889 --- /dev/null +++ b/openssl/crypto/aes/asm/aes-s390x.pl @@ -0,0 +1,1339 @@ +#!/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; |