diff options
author | Andy Polyakov <appro@openssl.org> | 2014-02-01 21:48:31 +0100 |
---|---|---|
committer | Andy Polyakov <appro@openssl.org> | 2014-02-01 21:48:31 +0100 |
commit | 50f1b47c7f30bb1cd6d91b0e43a6087014b30abe (patch) | |
tree | a3bf6c389926d5c48ae5fa83ddf38b2072e04c2e | |
parent | 5572bc4e2fb485c0d85bd5b4ec430ae0af65f7ea (diff) |
PPC assembly pack: jumbo update from master.
Add Vector Permutation AES and little-endian support.
-rwxr-xr-x | Configure | 5 | ||||
-rw-r--r-- | TABLE | 61 | ||||
-rw-r--r-- | crypto/aes/Makefile | 2 | ||||
-rw-r--r-- | crypto/aes/asm/aes-ppc.pl | 90 | ||||
-rw-r--r-- | crypto/aes/asm/vpaes-ppc.pl | 1507 | ||||
-rw-r--r-- | crypto/evp/e_aes.c | 5 | ||||
-rwxr-xr-x | crypto/perlasm/ppc-xlate.pl | 41 | ||||
-rwxr-xr-x | crypto/sha/asm/sha1-ppc.pl | 29 | ||||
-rwxr-xr-x | crypto/sha/asm/sha512-ppc.pl | 202 |
9 files changed, 1834 insertions, 108 deletions
@@ -139,8 +139,8 @@ my $s390x_asm="s390xcap.o s390xcpuid.o:bn-s390x.o s390x-mont.o s390x-gf2m.o::aes my $armv4_asm="armcap.o armv4cpuid.o:bn_asm.o armv4-mont.o armv4-gf2m.o::aes_cbc.o aes-armv4.o bsaes-armv7.o:::sha1-armv4-large.o sha256-armv4.o sha512-armv4.o:::::::ghash-armv4.o::void"; my $parisc11_asm="pariscid.o:bn_asm.o parisc-mont.o::aes_core.o aes_cbc.o aes-parisc.o:::sha1-parisc.o sha256-parisc.o sha512-parisc.o::rc4-parisc.o:::::ghash-parisc.o::32"; my $parisc20_asm="pariscid.o:pa-risc2W.o parisc-mont.o::aes_core.o aes_cbc.o aes-parisc.o:::sha1-parisc.o sha256-parisc.o sha512-parisc.o::rc4-parisc.o:::::ghash-parisc.o::64"; -my $ppc32_asm="ppccpuid.o ppccap.o:bn-ppc.o ppc-mont.o ppc64-mont.o::aes_core.o aes_cbc.o aes-ppc.o:::sha1-ppc.o sha256-ppc.o::::::::"; -my $ppc64_asm="ppccpuid.o ppccap.o:bn-ppc.o ppc-mont.o ppc64-mont.o::aes_core.o aes_cbc.o aes-ppc.o:::sha1-ppc.o sha256-ppc.o sha512-ppc.o::::::::"; +my $ppc64_asm="ppccpuid.o ppccap.o:bn-ppc.o ppc-mont.o ppc64-mont.o::aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o:::sha1-ppc.o sha256-ppc.o sha512-ppc.o::::::::"; +my $ppc32_asm=$ppc64_asm; my $no_asm=":::::::::::::::void"; # As for $BSDthreads. Idea is to maintain "collective" set of flags, @@ -365,6 +365,7 @@ my %table=( #### "linux-generic64","gcc:-DTERMIO -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_INT DES_UNROLL BF_PTR:${no_asm}:dlfcn:linux-shared:-fPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)", "linux-ppc64", "gcc:-m64 -DB_ENDIAN -DTERMIO -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_RISC1 DES_UNROLL:${ppc64_asm}:linux64:dlfcn:linux-shared:-fPIC:-m64:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::64", +"linux-ppc64le","gcc:-m64 -DL_ENDIAN -DTERMIO -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_RISC1 DES_UNROLL:$ppc64_asm:linux64le:dlfcn:linux-shared:-fPIC:-m64:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::", "linux-ia64", "gcc:-DL_ENDIAN -DTERMIO -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_UNROLL DES_INT:${ia64_asm}:dlfcn:linux-shared:-fPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)", "linux-ia64-icc","icc:-DL_ENDIAN -DTERMIO -O2 -Wall::-D_REENTRANT::-ldl -no_cpprt:SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_RISC1 DES_INT:${ia64_asm}:dlfcn:linux-shared:-fPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)", "linux-x86_64", "gcc:-m64 -DL_ENDIAN -DTERMIO -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_INT DES_UNROLL:${x86_64_asm}:elf:dlfcn:linux-shared:-fPIC:-m64:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::64", @@ -902,10 +902,10 @@ $bn_ops = BN_LLONG RC4_CHAR $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = -$sha1_obj = sha1-ppc.o sha256-ppc.o +$sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o $cast_obj = $rc4_obj = $rmd160_obj = @@ -935,10 +935,10 @@ $bn_ops = BN_LLONG RC4_CHAR $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = -$sha1_obj = sha1-ppc.o sha256-ppc.o +$sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o $cast_obj = $rc4_obj = $rmd160_obj = @@ -1001,7 +1001,7 @@ $bn_ops = SIXTY_FOUR_BIT_LONG RC4_CHAR $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = $sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o @@ -1034,7 +1034,7 @@ $bn_ops = SIXTY_FOUR_BIT_LONG RC4_CHAR $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = $sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o @@ -1463,10 +1463,10 @@ $bn_ops = BN_LLONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = -$sha1_obj = sha1-ppc.o sha256-ppc.o +$sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o $cast_obj = $rc4_obj = $rmd160_obj = @@ -1496,7 +1496,7 @@ $bn_ops = SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = $sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o @@ -2189,10 +2189,10 @@ $bn_ops = BN_LLONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = -$sha1_obj = sha1-ppc.o sha256-ppc.o +$sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o $cast_obj = $rc4_obj = $rmd160_obj = @@ -4400,10 +4400,10 @@ $bn_ops = BN_LLONG RC4_CHAR RC4_CHUNK DES_RISC1 DES_UNROLL $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = -$sha1_obj = sha1-ppc.o sha256-ppc.o +$sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o $cast_obj = $rc4_obj = $rmd160_obj = @@ -4433,7 +4433,7 @@ $bn_ops = SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_RISC1 DES_UNROLL $cpuid_obj = ppccpuid.o ppccap.o $bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o $des_obj = -$aes_obj = aes_core.o aes_cbc.o aes-ppc.o +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o $bf_obj = $md5_obj = $sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o @@ -4455,6 +4455,39 @@ $ranlib = $arflags = $multilib = 64 +*** linux-ppc64le +$cc = gcc +$cflags = -m64 -DL_ENDIAN -DTERMIO -O3 -Wall +$unistd = +$thread_cflag = -D_REENTRANT +$sys_id = +$lflags = -ldl +$bn_ops = SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_RISC1 DES_UNROLL +$cpuid_obj = ppccpuid.o ppccap.o +$bn_obj = bn-ppc.o ppc-mont.o ppc64-mont.o +$des_obj = +$aes_obj = aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o +$bf_obj = +$md5_obj = +$sha1_obj = sha1-ppc.o sha256-ppc.o sha512-ppc.o +$cast_obj = +$rc4_obj = +$rmd160_obj = +$rc5_obj = +$wp_obj = +$cmll_obj = +$modes_obj = +$engines_obj = +$perlasm_scheme = linux64le +$dso_scheme = dlfcn +$shared_target= linux-shared +$shared_cflag = -fPIC +$shared_ldflag = -m64 +$shared_extension = .so.$(SHLIB_MAJOR).$(SHLIB_MINOR) +$ranlib = +$arflags = +$multilib = + *** linux-sparcv8 $cc = gcc $cflags = -mv8 -DB_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -Wall -DBN_DIV2W diff --git a/crypto/aes/Makefile b/crypto/aes/Makefile index 7f84aaa2cd..fdfda4218d 100644 --- a/crypto/aes/Makefile +++ b/crypto/aes/Makefile @@ -75,6 +75,8 @@ aest4-sparcv9.s: asm/aest4-sparcv9.pl aes-ppc.s: asm/aes-ppc.pl $(PERL) asm/aes-ppc.pl $(PERLASM_SCHEME) $@ +vpaes-ppc.s: asm/vpaes-ppc.pl + $(PERL) asm/vpaes-ppc.pl $(PERLASM_SCHEME) $@ aes-parisc.s: asm/aes-parisc.pl $(PERL) asm/aes-parisc.pl $(PERLASM_SCHEME) $@ diff --git a/crypto/aes/asm/aes-ppc.pl b/crypto/aes/asm/aes-ppc.pl index 18138c2c84..7a99fc3d04 100644 --- a/crypto/aes/asm/aes-ppc.pl +++ b/crypto/aes/asm/aes-ppc.pl @@ -45,6 +45,8 @@ if ($flavour =~ /64/) { $PUSH ="stw"; } else { die "nonsense $flavour"; } +$LITTLE_ENDIAN = ($flavour=~/le$/) ? $SIZE_T : 0; + $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; ( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or ( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or @@ -361,17 +363,61 @@ $code.=<<___; bne Lenc_unaligned Lenc_unaligned_ok: +___ +$code.=<<___ if (!$LITTLE_ENDIAN); lwz $s0,0($inp) lwz $s1,4($inp) lwz $s2,8($inp) lwz $s3,12($inp) +___ +$code.=<<___ if ($LITTLE_ENDIAN); + lwz $t0,0($inp) + lwz $t1,4($inp) + lwz $t2,8($inp) + lwz $t3,12($inp) + rotlwi $s0,$t0,8 + rotlwi $s1,$t1,8 + rotlwi $s2,$t2,8 + rotlwi $s3,$t3,8 + rlwimi $s0,$t0,24,0,7 + rlwimi $s1,$t1,24,0,7 + rlwimi $s2,$t2,24,0,7 + rlwimi $s3,$t3,24,0,7 + rlwimi $s0,$t0,24,16,23 + rlwimi $s1,$t1,24,16,23 + rlwimi $s2,$t2,24,16,23 + rlwimi $s3,$t3,24,16,23 +___ +$code.=<<___; bl LAES_Te bl Lppc_AES_encrypt_compact $POP $out,`$FRAME-$SIZE_T*19`($sp) +___ +$code.=<<___ if ($LITTLE_ENDIAN); + rotlwi $t0,$s0,8 + rotlwi $t1,$s1,8 + rotlwi $t2,$s2,8 + rotlwi $t3,$s3,8 + rlwimi $t0,$s0,24,0,7 + rlwimi $t1,$s1,24,0,7 + rlwimi $t2,$s2,24,0,7 + rlwimi $t3,$s3,24,0,7 + rlwimi $t0,$s0,24,16,23 + rlwimi $t1,$s1,24,16,23 + rlwimi $t2,$s2,24,16,23 + rlwimi $t3,$s3,24,16,23 + stw $t0,0($out) + stw $t1,4($out) + stw $t2,8($out) + stw $t3,12($out) +___ +$code.=<<___ if (!$LITTLE_ENDIAN); stw $s0,0($out) stw $s1,4($out) stw $s2,8($out) stw $s3,12($out) +___ +$code.=<<___; b Lenc_done Lenc_unaligned: @@ -795,17 +841,61 @@ Lenc_compact_done: bne Ldec_unaligned Ldec_unaligned_ok: +___ +$code.=<<___ if (!$LITTLE_ENDIAN); lwz $s0,0($inp) lwz $s1,4($inp) lwz $s2,8($inp) lwz $s3,12($inp) +___ +$code.=<<___ if ($LITTLE_ENDIAN); + lwz $t0,0($inp) + lwz $t1,4($inp) + lwz $t2,8($inp) + lwz $t3,12($inp) + rotlwi $s0,$t0,8 + rotlwi $s1,$t1,8 + rotlwi $s2,$t2,8 + rotlwi $s3,$t3,8 + rlwimi $s0,$t0,24,0,7 + rlwimi $s1,$t1,24,0,7 + rlwimi $s2,$t2,24,0,7 + rlwimi $s3,$t3,24,0,7 + rlwimi $s0,$t0,24,16,23 + rlwimi $s1,$t1,24,16,23 + rlwimi $s2,$t2,24,16,23 + rlwimi $s3,$t3,24,16,23 +___ +$code.=<<___; bl LAES_Td bl Lppc_AES_decrypt_compact $POP $out,`$FRAME-$SIZE_T*19`($sp) +___ +$code.=<<___ if ($LITTLE_ENDIAN); + rotlwi $t0,$s0,8 + rotlwi $t1,$s1,8 + rotlwi $t2,$s2,8 + rotlwi $t3,$s3,8 + rlwimi $t0,$s0,24,0,7 + rlwimi $t1,$s1,24,0,7 + rlwimi $t2,$s2,24,0,7 + rlwimi $t3,$s3,24,0,7 + rlwimi $t0,$s0,24,16,23 + rlwimi $t1,$s1,24,16,23 + rlwimi $t2,$s2,24,16,23 + rlwimi $t3,$s3,24,16,23 + stw $t0,0($out) + stw $t1,4($out) + stw $t2,8($out) + stw $t3,12($out) +___ +$code.=<<___ if (!$LITTLE_ENDIAN); stw $s0,0($out) stw $s1,4($out) stw $s2,8($out) stw $s3,12($out) +___ +$code.=<<___; b Ldec_done Ldec_unaligned: diff --git a/crypto/aes/asm/vpaes-ppc.pl b/crypto/aes/asm/vpaes-ppc.pl new file mode 100644 index 0000000000..f78e713f70 --- /dev/null +++ b/crypto/aes/asm/vpaes-ppc.pl @@ -0,0 +1,1507 @@ +#!/usr/bin/env perl + +###################################################################### +## Constant-time SSSE3 AES core implementation. +## version 0.1 +## +## By Mike Hamburg (Stanford University), 2009 +## Public domain. +## +## For details see http://shiftleft.org/papers/vector_aes/ and +## http://crypto.stanford.edu/vpaes/. + +# CBC encrypt/decrypt performance in cycles per byte processed with +# 128-bit key. +# +# aes-ppc.pl this +# G4e 35.5/52.1/(23.8) 11.9(*)/15.4 +# POWER6 42.7/54.3/(28.2) 63.0/92.8(**) +# POWER7 32.3/42.9/(18.4) 18.5/23.3 +# +# (*) This is ~10% worse than reported in paper. The reason is +# twofold. This module doesn't make any assumption about +# key schedule (or data for that matter) alignment and handles +# it in-line. Secondly it, being transliterated from +# vpaes-x86_64.pl, relies on "nested inversion" better suited +# for Intel CPUs. +# (**) Inadequate POWER6 performance is due to astronomic AltiVec +# latency, 9 cycles per simple logical operation. + +$flavour = shift; + +if ($flavour =~ /64/) { + $SIZE_T =8; + $LRSAVE =2*$SIZE_T; + $STU ="stdu"; + $POP ="ld"; + $PUSH ="std"; +} elsif ($flavour =~ /32/) { + $SIZE_T =4; + $LRSAVE =$SIZE_T; + $STU ="stwu"; + $POP ="lwz"; + $PUSH ="stw"; +} else { die "nonsense $flavour"; } + +$sp="r1"; +$FRAME=6*$SIZE_T+13*16; # 13*16 is for v20-v31 offload + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or +die "can't locate ppc-xlate.pl"; + +open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!"; + +$code.=<<___; +.machine "any" + +.text + +.align 7 # totally strategic alignment +_vpaes_consts: +Lk_mc_forward: # mc_forward + .long 0x01020300, 0x05060704, 0x090a0b08, 0x0d0e0f0c ?inv + .long 0x05060704, 0x090a0b08, 0x0d0e0f0c, 0x01020300 ?inv + .long 0x090a0b08, 0x0d0e0f0c, 0x01020300, 0x05060704 ?inv + .long 0x0d0e0f0c, 0x01020300, 0x05060704, 0x090a0b08 ?inv +Lk_mc_backward: # mc_backward + .long 0x03000102, 0x07040506, 0x0b08090a, 0x0f0c0d0e ?inv + .long 0x0f0c0d0e, 0x03000102, 0x07040506, 0x0b08090a ?inv + .long 0x0b08090a, 0x0f0c0d0e, 0x03000102, 0x07040506 ?inv + .long 0x07040506, 0x0b08090a, 0x0f0c0d0e, 0x03000102 ?inv +Lk_sr: # sr + .long 0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f ?inv + .long 0x00050a0f, 0x04090e03, 0x080d0207, 0x0c01060b ?inv + .long 0x0009020b, 0x040d060f, 0x08010a03, 0x0c050e07 ?inv + .long 0x000d0a07, 0x04010e0b, 0x0805020f, 0x0c090603 ?inv + +## +## "Hot" constants +## +Lk_inv: # inv, inva + .long 0xf001080d, 0x0f06050e, 0x020c0b0a, 0x09030704 ?rev + .long 0xf0070b0f, 0x060a0401, 0x09080502, 0x0c0e0d03 ?rev +Lk_ipt: # input transform (lo, hi) + .long 0x00702a5a, 0x98e8b2c2, 0x08782252, 0x90e0baca ?rev + .long 0x004d7c31, 0x7d30014c, 0x81ccfdb0, 0xfcb180cd ?rev +Lk_sbo: # sbou, sbot + .long 0x00c7bd6f, 0x176dd2d0, 0x78a802c5, 0x7abfaa15 ?rev + .long 0x006abb5f, 0xa574e4cf, 0xfa352b41, 0xd1901e8e ?rev +Lk_sb1: # sb1u, sb1t + .long 0x0023e2fa, 0x15d41836, 0xefd92e0d, 0xc1ccf73b ?rev + .long 0x003e50cb, 0x8fe19bb1, 0x44f52a14, 0x6e7adfa5 ?rev +Lk_sb2: # sb2u, sb2t + .long 0x0029e10a, 0x4088eb69, 0x4a2382ab, 0xc863a1c2 ?rev + .long 0x0024710b, 0xc6937ae2, 0xcd2f98bc, 0x55e9b75e ?rev + +## +## Decryption stuff +## +Lk_dipt: # decryption input transform + .long 0x005f540b, 0x045b500f, 0x1a454e11, 0x1e414a15 ?rev + .long 0x00650560, 0xe683e386, 0x94f191f4, 0x72177712 ?rev +Lk_dsbo: # decryption sbox final output + .long 0x0040f97e, 0x53ea8713, 0x2d3e94d4, 0xb96daac7 ?rev + .long 0x001d4493, 0x0f56d712, 0x9c8ec5d8, 0x59814bca ?rev +Lk_dsb9: # decryption sbox output *9*u, *9*t + .long 0x00d6869a, 0x53031c85, 0xc94c994f, 0x501fd5ca ?rev + .long 0x0049d7ec, 0x89173bc0, 0x65a5fbb2, 0x9e2c5e72 ?rev +Lk_dsbd: # decryption sbox output *D*u, *D*t + .long 0x00a2b1e6, 0xdfcc577d, 0x39442a88, 0x139b6ef5 ?rev + .long 0x00cbc624, 0xf7fae23c, 0xd3efde15, 0x0d183129 ?rev +Lk_dsbb: # decryption sbox output *B*u, *B*t + .long 0x0042b496, 0x926422d0, 0x04d4f2b0, 0xf6462660 ?rev + .long 0x006759cd, 0xa69894c1, 0x6baa5532, 0x3e0cfff3 ?rev +Lk_dsbe: # decryption sbox output *E*u, *E*t + .long 0x00d0d426, 0x9692f246, 0xb0f6b464, 0x04604222 ?rev + .long 0x00c1aaff, 0xcda6550c, 0x323e5998, 0x6bf36794 ?rev + +## +## Key schedule constants +## +Lk_dksd: # decryption key schedule: invskew x*D + .long 0x0047e4a3, 0x5d1ab9fe, 0xf9be1d5a, 0xa4e34007 ?rev + .long 0x008336b5, 0xf477c241, 0x1e9d28ab, 0xea69dc5f ?rev +Lk_dksb: # decryption key schedule: invskew x*B + .long 0x00d55085, 0x1fca4f9a, 0x994cc91c, 0x8653d603 ?rev + .long 0x004afcb6, 0xa7ed5b11, 0xc882347e, 0x6f2593d9 ?rev +Lk_dkse: # decryption key schedule: invskew x*E + 0x63 + .long 0x00d6c91f, 0xca1c03d5, 0x86504f99, 0x4c9a8553 ?rev + .long 0xe87bdc4f, 0x059631a2, 0x8714b320, 0x6af95ecd ?rev +Lk_dks9: # decryption key schedule: invskew x*9 + .long 0x00a7d97e, 0xc86f11b6, 0xfc5b2582, 0x3493ed4a ?rev + .long 0x00331427, 0x62517645, 0xcefddae9, 0xac9fb88b ?rev + +Lk_rcon: # rcon + .long 0xb6ee9daf, 0xb991831f, 0x817d7c4d, 0x08982a70 ?asis +Lk_s63: + .long 0x5b5b5b5b, 0x5b5b5b5b, 0x5b5b5b5b, 0x5b5b5b5b ?asis + +Lk_opt: # output transform + .long 0x0060b6d6, 0x29499fff, 0x0868bede, 0x214197f7 ?rev + .long 0x00ecbc50, 0x51bded01, 0xe00c5cb0, 0xb15d0de1 ?rev +Lk_deskew: # deskew tables: inverts the sbox's "skew" + .long 0x00e3a447, 0x40a3e407, 0x1af9be5d, 0x5ab9fe1d ?rev + .long 0x0069ea83, 0xdcb5365f, 0x771e9df4, 0xabc24128 ?rev +.align 5 +Lconsts: + mflr r0 + bcl 20,31,\$+4 + mflr r12 #vvvvv "distance between . and _vpaes_consts + addi r12,r12,-0x308 + mtlr r0 + blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 +.asciz "Vector Permutaion AES for AltiVec, Mike Hamburg (Stanford University)" +.align 6 +___ + +my ($inptail,$inpperm,$outhead,$outperm,$outmask,$keyperm) = map("v$_",(26..31)); +{ +my ($inp,$out,$key) = map("r$_",(3..5)); + +my ($invlo,$invhi,$iptlo,$ipthi,$sbou,$sbot) = map("v$_",(10..15)); +my ($sb1u,$sb1t,$sb2u,$sb2t) = map("v$_",(16..19)); +my ($sb9u,$sb9t,$sbdu,$sbdt,$sbbu,$sbbt,$sbeu,$sbet)=map("v$_",(16..23)); + +$code.=<<___; +## +## _aes_preheat +## +## Fills register %r10 -> .aes_consts (so you can -fPIC) +## and %xmm9-%xmm15 as specified below. +## +.align 4 +_vpaes_encrypt_preheat: + mflr r8 + bl Lconsts + mtlr r8 + li r11, 0xc0 # Lk_inv + li r10, 0xd0 + li r9, 0xe0 # Lk_ipt + li r8, 0xf0 + vxor v7, v7, v7 # 0x00..00 + vspltisb v8,4 # 0x04..04 + vspltisb v9,0x0f # 0x0f..0f + lvx $invlo, r12, r11 + li r11, 0x100 + lvx $invhi, r12, r10 + li r10, 0x110 + lvx $iptlo, r12, r9 + li r9, 0x120 + lvx $ipthi, r12, r8 + li r8, 0x130 + lvx $sbou, r12, r11 + li r11, 0x140 + lvx $sbot, r12, r10 + li r10, 0x150 + lvx $sb1u, r12, r9 + lvx $sb1t, r12, r8 + lvx $sb2u, r12, r11 + lvx $sb2t, r12, r10 + blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 + +## +## _aes_encrypt_core +## +## AES-encrypt %xmm0. +## +## Inputs: +## %xmm0 = input +## %xmm9-%xmm15 as in _vpaes_preheat +## (%rdx) = scheduled keys +## +## Output in %xmm0 +## Clobbers %xmm1-%xmm6, %r9, %r10, %r11, %rax +## +## +.align 5 +_vpaes_encrypt_core: + lwz r8, 240($key) # pull rounds + li r9, 16 + lvx v5, 0, $key # vmovdqu (%r9), %xmm5 # round0 key + li r11, 0x10 + lvx v6, r9, $key + addi r9, r9, 16 + ?vperm v5, v5, v6, $keyperm # align round key + addi r10, r11, 0x40 + vsrb v1, v0, v8 # vpsrlb \$4, %xmm0, %xmm0 + vperm v0, $iptlo, $iptlo, v0 # vpshufb %xmm1, %xmm2, %xmm1 + vperm v1, $ipthi, $ipthi, v1 # vpshufb %xmm0, %xmm3, %xmm2 + vxor v0, v0, v5 # vpxor %xmm5, %xmm1, %xmm0 + vxor v0, v0, v1 # vpxor %xmm2, %xmm0, %xmm0 + mtctr r8 + b Lenc_entry + +.align 4 +Lenc_loop: + # middle of middle round + vperm v4, $sb1t, v7, v2 # vpshufb %xmm2, %xmm13, %xmm4 # 4 = sb1u + lvx v1, r12, r11 # vmovdqa -0x40(%r11,%r10), %xmm1 # .Lk_mc_forward[] + addi r11, r11, 16 + vperm v0, $sb1u, v7, v3 # vpshufb %xmm3, %xmm12, %xmm0 # 0 = sb1t + vxor v4, v4, v5 # vpxor %xmm5, %xmm4, %xmm4 # 4 = sb1u + k + andi. r11, r11, 0x30 # and \$0x30, %r11 # ... mod 4 + vperm v5, $sb2t, v7, v2 # vpshufb %xmm2, %xmm15, %xmm5 # 4 = sb2u + vxor v0, v0, v4 # vpxor %xmm4, %xmm0, %xmm0 # 0 = A + vperm v2, $sb2u, v7, v3 # vpshufb %xmm3, %xmm14, %xmm2 # 2 = sb2t + lvx v4, r12, r10 # vmovdqa (%r11,%r10), %xmm4 # .Lk_mc_backward[] + addi r10, r11, 0x40 + vperm v3, v0, v7, v1 # vpshufb %xmm1, %xmm0, %xmm3 # 0 = B + vxor v2, v2, v5 # vpxor %xmm5, %xmm2, %xmm2 # 2 = 2A + vperm v0, v0, v7, v4 # vpshufb %xmm4, %xmm0, %xmm0 # 3 = D + vxor v3, v3, v2 # vpxor %xmm2, %xmm3, %xmm3 # 0 = 2A+B + vperm v4, v3, v7, v1 # vpshufb %xmm1, %xmm3, %xmm4 # 0 = 2B+C + vxor v0, v0, v3 # vpxor %xmm3, %xmm0, %xmm0 # 3 = 2A+B+D + vxor v0, v0, v4 # vpxor %xmm4, %xmm0, %xmm0 # 0 = 2A+3B+C+D + +Lenc_entry: + # top of round + vsrb v1, v0, v8 # vpsrlb \$4, %xmm0, %xmm0 # 1 = i + vperm v5, $invhi, $invhi, v0 # vpshufb %xmm1, %xmm11, %xmm5 # 2 = a/k + vxor v0, v0, v1 # vpxor %xmm0, %xmm1, %xmm1 # 0 = j + vperm v3, $invlo, $invlo, v1 # vpshufb %xmm0, %xmm10, %xmm3 # 3 = 1/i + vperm v4, $invlo, $invlo, v0 # vpshufb %xmm1, %xmm10, %xmm4 # 4 = 1/j + vand v0, v0, v9 + vxor v3, v3, v5 # vpxor %xmm5, %xmm3, %xmm3 # 3 = iak = 1/i + a/k + vxor v4, v4, v5 # vpxor %xmm5, %xmm4, %xmm4 # 4 = jak = 1/j + a/k + vperm v2, $invlo, v7, v3 # vpshufb %xmm3, %xmm10, %xmm2 # 2 = 1/iak + vmr v5, v6 + lvx v6, r9, $key # vmovdqu (%r9), %xmm5 + vperm v3, $invlo, v7, v4 # vpshufb %xmm4, %xmm10, %xmm3 # 3 = 1/jak + addi r9, r9, 16 + vxor v2, v2, v0 # vpxor %xmm1, %xmm2, %xmm2 # 2 = io + ?vperm v5, v5, v6, $keyperm # align round key + vxor v3, v3, v1 # vpxor %xmm0, %xmm3, %xmm3 # 3 = jo + bdnz Lenc_loop + + # middle of last round + addi r10, r11, 0x80 + # vmovdqa -0x60(%r10), %xmm4 # 3 : sbou .Lk_sbo + # vmovdqa -0x50(%r10), %xmm0 # 0 : sbot .Lk_sbo+16 + vperm v4, $sbou, v7, v2 # vpshufb %xmm2, %xmm4, %xmm4 # 4 = sbou + lvx v1, r12, r10 # vmovdqa 0x40(%r11,%r10), %xmm1 # .Lk_sr[] + vperm v0, $sbot, v7, v3 # vpshufb %xmm3, %xmm0, %xmm0 # 0 = sb1t + vxor v4, v4, v5 # vpxor %xmm5, %xmm4, %xmm4 # 4 = sb1u + k + vxor v0, v0, v4 # vpxor %xmm4, %xmm0, %xmm0 # 0 = A + vperm v0, v0, v7, v1 # vpshufb %xmm1, %xmm0, %xmm0 + blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 + +.globl .vpaes_encrypt +.align 5 +.vpaes_encrypt: + $STU $sp,-$FRAME($sp) + li r10,`15+6*$SIZE_T` + li r11,`31+6*$SIZE_T` + mflr r6 + mfspr r7, 256 # save vrsave + stvx v20,r10,$sp + addi r10,r10,16 + stvx v21,r11,$sp + addi r11,r11,16 + stvx v22,r10,$sp + addi r10,r10,16 + stvx v23,r11,$sp + addi r11,r11,16 + stvx v24,r10,$sp + addi r10,r10,16 + stvx v25,r11,$sp + addi r11,r11,16 + stvx v26,r10,$sp + addi r10,r10,16 + stvx v27,r11,$sp + addi r11,r11,16 + stvx v28,r10,$sp + addi r10,r10,16 + stvx v29,r11,$sp + addi r11,r11,16 + stvx v30,r10,$sp + stvx v31,r11,$sp + lwz r7,`$FRAME-4`($sp) # save vrsave + li r0, -1 + $PUSH r6,`$FRAME+$LRSAVE`($sp) + mtspr 256, r0 # preserve all AltiVec registers + + bl _vpaes_encrypt_preheat + + ?lvsl $inpperm, 0, $inp # prepare for unaligned access + lvx v0, 0, $inp + addi $inp, $inp, 15 # 15 is not a typo + ?lvsr $outperm, 0, $out + ?lvsl $keyperm, 0, $key # prepare for unaligned access + vnor $outmask, v7, v7 # 0xff..ff + lvx $inptail, 0, $inp # redundant in aligned case + ?vperm $outmask, v7, $outmask, $outperm + lvx $outhead, 0, $out + ?vperm v0, v0, $inptail, $inpperm + + bl _vpaes_encrypt_core + + vperm v0, v0, v0, $outperm # rotate right/left + vsel v1, $outhead, v0, $outmask + vmr $outhead, v0 + stvx v1, 0, $out + addi $out, $out, 15 # 15 is not a typo + ######## + + lvx v1, 0, $out # redundant in aligned case + vsel v1, $outhead, v1, $outmask + stvx v1, 0, $out + + li r10,`15+6*$SIZE_T` + li r11,`31+6*$SIZE_T` + mtlr r6 + mtspr 256, r7 # restore vrsave + lvx v20,r10,$sp + addi r10,r10,16 + lvx v21,r11,$sp + addi r11,r11,16 + lvx v22,r10,$sp + addi r10,r10,16 + lvx v23,r11,$sp + addi r11,r11,16 + lvx v24,r10,$sp + addi r10,r10,16 + lvx v25,r11,$sp + addi r11,r11,16 + lvx v26,r10,$sp + addi r10,r10,16 + lvx v27,r11,$sp + addi r11,r11,16 + lvx v28,r10,$sp + addi r10,r10,16 + lvx v29,r11,$sp + addi r11,r11,16 + lvx v30,r10,$sp + lvx v31,r11,$sp + addi $sp,$sp,$FRAME + blr + .long 0 + .byte 0,12,0x04,1,0x80,0,3,0 + .long 0 +.size .vpaes_encrypt,.-.vpaes_encrypt + +.align 4 +_vpaes_decrypt_preheat: + mflr r8 + bl Lconsts + mtlr r8 + li r11, 0xc0 # Lk_inv + li r10, 0xd0 + li r9, 0x160 # Ldipt + li r8, 0x170 + vxor v7, v7, v7 # 0x00..00 + vspltisb v8,4 # 0x04..04 + vspltisb v9,0x0f # 0x0f..0f + lvx $invlo, r12, r11 + li r11, 0x180 + lvx $invhi, r12, r10 + li r10, 0x190 + lvx $iptlo, r12, r9 + li r9, 0x1a0 + lvx $ipthi, r12, r8 + li r8, 0x1b0 + lvx $sbou, r12, r11 + li r11, 0x1c0 + lvx $sbot, r12, r10 + li r10, 0x1d0 + lvx $sb9u, r12, r9 + li r9, 0x1e0 + lvx $sb9t, r12, r8 + li r8, 0x1f0 + lvx $sbdu, r12, r11 + li r11, 0x200 + lvx $sbdt, r12, r10 + li r10, 0x210 + lvx $sbbu, r12, r9 + lvx $sbbt, r12, r8 + lvx $sbeu, r12, r11 + lvx $sbet, r12, r10 + blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 + +## +## Decryption core +## +## Same API as encryption core. +## +.align 4 +_vpaes_decrypt_core: + lwz r8, 240($key) # pull rounds + li r9, 16 + lvx v5, 0, $key # vmovdqu (%r9), %xmm4 # round0 key + li r11, 0x30 + lvx v6, r9, $key + addi r9, r9, 16 + ?vperm v5, v5, v6, $keyperm # align round key + vsrb v1, v0, v8 # vpsrlb \$4, %xmm0, %xmm0 + vperm v0, $iptlo, $iptlo, v0 # vpshufb %xmm1, %xmm2, %xmm2 + vperm v1, $ipthi, $ipthi, v1 # vpshufb %xmm0, %xmm1, %xmm0 + vxor v0, v0, v5 # vpxor %xmm4, %xmm2, %xmm2 + vxor v0, v0, v1 # vpxor %xmm2, %xmm0, %xmm0 + mtctr r8 + b Ldec_entry + +.align 4 +Ldec_loop: +# +# Inverse mix columns +# + lvx v0, r12, r11 # v5 and v0 are flipped + # vmovdqa -0x20(%r10),%xmm4 # 4 : sb9u + # vmovdqa -0x10(%r10),%xmm1 # 0 : sb9t + vperm v4, $sb9u, v7, v2 # vpshufb %xmm2, %xmm4, %xmm4 # 4 = sb9u + subi r11, r11, 16 + vperm v1, $sb9t, v7, v3 # vpshufb %xmm3, %xmm1, %xmm1 # 0 = sb9t + andi. r11, r11, 0x30 + vxor v5, v5, v4 # vpxor %xmm4, %xmm0, %xmm0 + # vmovdqa 0x00(%r10),%xmm4 # 4 : sbdu + vxor v5, v5, v1 # vpxor %xmm1, %xmm0, %xmm0 # 0 = ch + # vmovdqa 0x10(%r10),%xmm1 # 0 : sbdt + + vperm v4, $sbdu, v7, v2 # vpshufb %xmm2, %xmm4, %xmm4 # 4 = sbdu + vperm v5, v5, v7, v0 # vpshufb %xmm5, %xmm0, %xmm0 # MC ch + vperm v1, $sbdt, v7, v3 # vpshufb %xmm3, %xmm1, %xmm1 # 0 = sbdt + vxor v5, v5, v4 # vpxor %xmm4, %xmm0, %xmm0 # 4 = ch + # vmovdqa 0x20(%r10), %xmm4 # 4 : sbbu + vxor v5, v5, v1 # vpxor %xmm1, %xmm0, %xmm0 # 0 = ch + # vmovdqa 0x30(%r10), %xmm1 # 0 : sbbt + + vperm v4, $sbbu, v7, v2 # vpshufb %xmm2, %xmm4, %xmm4 # 4 = sbbu + vperm v5, v5, v7, v0 # vpshufb %xmm5, %xmm0, %xmm0 # MC ch + vperm v1, $sbbt, v7, v3 # vpshufb %xmm3, %xmm1, %xmm1 # 0 = sbbt + vxor v5, v5, v4 # vpxor %xmm4, %xmm0, %xmm0 # 4 = ch + # vmovdqa 0x40(%r10), %xmm4 # 4 : sbeu + vxor v5, v5, v1 # vpxor %xmm1, %xmm0, %xmm0 # 0 = ch + # vmovdqa 0x50(%r10), %xmm1 # 0 : sbet + + vperm v4, $sbeu, v7, v2 # vpshufb %xmm2, %xmm4, %xmm4 # 4 = sbeu + vperm v5, v5, v7, v0 # vpshufb %xmm5, %xmm0, %xmm0 # MC ch + vperm v1, $sbet, v7, v3 # vpshufb %xmm3, %xmm1, %xmm1 # 0 = sbet + vxor v0, v5, v4 # vpxor %xmm4, %xmm0, %xmm0 # 4 = ch + vxor v0, v0, v1 # vpxor %xmm1, %xmm0, %xmm0 # 0 = ch + +Ldec_entry: + # top of round + vsrb v1, v0, v8 # vpsrlb \$4, %xmm0, %xmm0 # 1 = i + vperm v2, $invhi, $invhi, v0 # vpshufb %xmm1, %xmm11, %xmm2 # 2 = a/k + vxor v0, v0, v1 # vpxor %xmm0, %xmm1, %xmm1 # 0 = j + vperm v3, $invlo, $invlo, v1 # vpshufb %xmm0, %xmm10, %xmm3 # 3 = 1/i + vperm v4, $invlo, $invlo, v0 # vpshufb %xmm1, %xmm10, %xmm4 # 4 = 1/j + vand v0, v0, v9 + vxor v3, v3, v2 # vpxor %xmm2, %xmm3, %xmm3 # 3 = iak = 1/i + a/k + vxor v4, v4, v2 # vpxor %xmm2, %xmm4, %xmm4 # 4 = jak = 1/j + a/k + vperm v2, $invlo, v7, v3 # vpshufb %xmm3, %xmm10, %xmm2 # 2 = 1/iak + vmr v5, v6 + lvx v6, r9, $key # vmovdqu (%r9), %xmm0 + vperm v3, $invlo, v7, v4 # vpshufb %xmm4, %xmm10, %xmm3 # 3 = 1/jak + addi r9, r9, 16 + vxor v2, v2, v0 # vpxor %xmm1, %xmm2, %xmm2 # 2 = io + ?vperm v5, v5, v6, $keyperm # align round key + vxor v3, v3, v1 # vpxor %xmm0, %xmm3, %xmm3 # 3 = jo + bdnz Ldec_loop + + # middle of last round + addi r10, r11, 0x80 + # vmovdqa 0x60(%r10), %xmm4 # 3 : sbou + vperm v4, $sbou, v7, v2 # vpshufb %xmm2, %xmm4, %xmm4 # 4 = sbou + # vmovdqa 0x70(%r10), %xmm1 # 0 : sbot + lvx v2, r12, r10 # vmovdqa -0x160(%r11), %xmm2 # .Lk_sr-.Lk_dsbd=-0x160 + vperm v1, $sbot, v7, v3 # vpshufb %xmm3, %xmm1, %xmm1 # 0 = sb1t + vxor v4, v4, v5 # vpxor %xmm0, %xmm4, %xmm4 # 4 = sb1u + k + vxor v0, v1, v4 # vpxor %xmm4, %xmm1, %xmm0 # 0 = A + vperm v0, v0, v7, v2 # vpshufb %xmm2, %xmm0, %xmm0 + blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 + +.globl .vpaes_decrypt +.align 5 +.vpaes_decrypt: + $STU $sp,-$FRAME($sp) + li r10,`15+6*$SIZE_T` + li r11,`31+6*$SIZE_T` + mflr r6 + mfspr r7, 256 # save vrsave + stvx v20,r10,$sp + addi r10,r10,16 + stvx v21,r11,$sp + addi r11,r11,16 + stvx v22,r10,$sp + addi r10,r10,16 + stvx v23,r11,$sp + addi r11,r11,16 + stvx v24,r10,$sp + addi r10,r10,16 + stvx v25,r11,$sp + addi r11,r11,16 + stvx v26,r10,$sp + addi r10,r10,16 + stvx v27,r11,$sp + addi r11,r11,16 + stvx v28,r10,$sp + addi r10,r10,16 + stvx v29,r11,$sp + addi r11,r11,16 + stvx v30,r10,$sp + stvx v31,r11,$sp + lwz r7,`$FRAME-4`($sp) # save vrsave + li r0, -1 + $PUSH r6,`$FRAME+$LRSAVE`($sp) + mtspr 256, r0 # preserve all AltiVec registers + + bl _vpaes_decrypt_preheat + + ?lvsl $inpperm, 0, $inp # prepare for unaligned access + lvx v0, 0, $inp + addi $inp, $inp, 15 # 15 is not a typo + ?lvsr $outperm, 0, $out + ?lvsl $keyperm, 0, $key + vnor $outmask, v7, v7 # 0xff..ff + lvx $inptail, 0, $inp # redundant in aligned case + ?vperm $outmask, v7, $outmask, $outperm + lvx $outhead, 0, $out + ?vperm v0, v0, $inptail, $inpperm + + bl _vpaes_decrypt_core + + vperm v0, v0, v0, $outperm # rotate right/left + vsel v1, $outhead, v0, $outmask + vmr $outhead, v0 + stvx v1, 0, $out + addi $out, $out, 15 # 15 is not a typo + ######## + + lvx v1, 0, $out # redundant in aligned case + vsel v1, $outhead, v1, $outmask + stvx v1, 0, $out + + li r10,`15+6*$SIZE_T` + li r11,`31+6*$SIZE_T` + mtlr r6 + mtspr 256, r7 # restore vrsave + lvx v20,r10,$sp + addi r10,r10,16 + lvx v21,r11,$sp + addi r11,r11,16 + lvx v22,r10,$sp + addi r10,r10,16 + lvx v23,r11,$sp + addi r11,r11,16 + lvx v24,r10,$sp + addi r10,r10,16 + lvx v25,r11,$sp + addi r11,r11,16 + lvx v26,r10,$sp + addi r10,r10,16 + lvx v27,r11,$sp + addi r11,r11,16 + lvx v28,r10,$sp + addi r10,r10,16 + lvx v29,r11,$sp + addi r11,r11,16 + lvx v30,r10,$sp + lvx v31,r11,$sp + addi $sp,$sp,$FRAME + blr + .long 0 + .byte 0,12,0x04,1,0x80,0,3,0 + .long 0 +.size .vpaes_decrypt,.-.vpaes_decrypt + +.globl .vpaes_cbc_encrypt +.align 5 +.vpaes_cbc_encrypt: + $STU $sp,-`($FRAME+2*$SIZE_T)`($sp) + mflr r0 + li r10,`15+6*$SIZE_T` + li r11,`31+6*$SIZE_T` + mfspr r12, 256 + stvx v20,r10,$sp + addi r10,r10,16 + stvx v21,r11,$sp + addi r11,r11,16 + stvx v22,r10,$sp + addi r10,r10,16 + stvx v23,r11,$sp + addi r11,r11,16 + stvx v24,r10,$sp + addi r10,r10,16 + stvx v25,r11,$sp + addi r11,r11,16 + stvx v26,r10,$sp + addi r10,r10,16 + stvx v27,r11,$sp + addi r11,r11,16 + stvx v28,r10,$sp + addi r10,r10,16 + stvx v29,r11,$sp + addi r11,r11,16 + stvx v30,r10,$sp + stvx v31,r11,$sp + lwz r12,`$FRAME-4`($sp) # save vrsave + $PUSH r30,`$FRAME+$SIZE_T*0`($sp) + $PUSH r31,`$FRAME+$SIZE_T*1`($sp) + li r9, 16 + $PUSH r0, `$FRAME+$SIZE_T*2+$LRSAVE`($sp) + + sub. r30, r5, r9 # copy length-16 + mr r5, r6 # copy pointer to key + mr r31, r7 # copy pointer to iv + blt Lcbc_abort + cmpwi r8, 0 # test direction + li r6, -1 + mr r7, r12 # copy vrsave + mtspr 256, r6 # preserve all AltiVec registers + + lvx v24, 0, r31 # load [potentially unaligned] iv + li r9, 15 + ?lvsl $inpperm, 0, r31 + lvx v25, r9, r31 + ?vperm v24, v24, v25, $inpperm + + neg r8, $inp # prepare for unaligned access + vxor v7, v7, v7 + ?lvsl $keyperm, 0, $key + ?lvsr $outperm, 0, $out + ?lvsr $inpperm, 0, r8 # -$inp + vnor $outmask, v7, v7 # 0xff..ff + lvx $in |