X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Faes%2Fasm%2Faes-s390x.pl;h=06cd8dff9b3e5e0c8c978195890e598bf4dd80a3;hp=9f5d48ae1f82c052dfaadd9b98718f21c8e30a24;hb=76c828c627f89e52bdcf05155a24f79783a470e4;hpb=281cfff026399b7dea7b3288edbeef2d4db0ebfa diff --git a/crypto/aes/asm/aes-s390x.pl b/crypto/aes/asm/aes-s390x.pl index 9f5d48ae1f..06cd8dff9b 100644 --- a/crypto/aes/asm/aes-s390x.pl +++ b/crypto/aes/asm/aes-s390x.pl @@ -16,7 +16,7 @@ # 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. +# 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 @@ -26,10 +26,15 @@ # ~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. + $t1="%r0"; $t2="%r1"; $t3="%r2"; $inp="%r2"; -$out="%r3"; $mask="%r3"; +$out="%r3"; $mask="%r3"; $bits="%r3"; $key="%r4"; $i1="%r5"; $i2="%r6"; @@ -52,7 +57,7 @@ $code=<<___; .text .type AES_Te,\@object -.align 64 +.align 128 AES_Te: ___ &_data_word( @@ -121,13 +126,51 @@ ___ 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 .size AES_Te,.-AES_Te -# void AES_encrypt(const unsigned char *in, unsigned char *out, +# void AES_encrypt(const unsigned char *inp, unsigned char *out, # const AES_KEY *key) { .globl AES_encrypt .type AES_encrypt,\@function AES_encrypt: + stg $ra,112($sp) lghi %r0,10 c %r0,240($key) jne .Lesoft @@ -136,21 +179,30 @@ AES_encrypt: .long 0xb92e0042 # km %r4,%r2 lg %r0,16($sp) tmhl %r0,`0x8000>>2` - jz .Lesoft + jz .Lesoft128 lghi %r0,`0x00|0x12` # encrypt AES-128 la %r1,0($key) #la %r2,0($inp) la %r4,0($out) lghi %r3,16 # single block length .long 0xb92e0042 # km %r4,%r2 - bcr 8,%r14 + bcr 8,%r14 # return if done la $out,0(%r4) # restore arguments la $key,0(%r1) +.Lesoft128: + lghi %r0,0 + c %r0,236($key) + je .Lesoft + stmg $inp,$key,16($sp) + la $inp,0($key) + lghi $bits,128 + bras $ra,.Lekey_internal # postponed key schedule setup + lmg $inp,$key,16($sp) .Lesoft: - stmg %r3,%r15,24($sp) + stmg %r3,%r13,24($sp) - bras $tbl,.Lepic -.Lepic: aghi $tbl,AES_Te-.Lepic + bras $tbl,1f +1: aghi $tbl,AES_Te-. llgf $s0,0($inp) llgf $s1,4($inp) @@ -166,8 +218,8 @@ AES_encrypt: st $s2,8($out) st $s3,12($out) - lmg %r6,%r15,48($sp) - br %r14 + lmg %r6,$ra,48($sp) + br $ra .size AES_encrypt,.-AES_encrypt .type _s390x_AES_encrypt,\@function @@ -331,7 +383,7 @@ ___ $code.=<<___; .type AES_Td,\@object -.align 64 +.align 128 AES_Td: ___ &_data_word( @@ -400,6 +452,7 @@ ___ 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 @@ -434,11 +487,12 @@ $code.=<<___; .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d .size AES_Td,.-AES_Td -# void AES_decrypt(const unsigned char *in, unsigned char *out, +# void AES_decrypt(const unsigned char *inp, unsigned char *out, # const AES_KEY *key) { .globl AES_decrypt .type AES_decrypt,\@function AES_decrypt: + stg $ra,112($sp) lghi %r0,10 c %r0,240($key) jne .Ldsoft @@ -447,22 +501,31 @@ AES_decrypt: .long 0xb92e0042 # km %r4,%r2 lg %r0,16($sp) tmhl %r0,`0x8000>>2` - jz .Ldsoft + jz .Ldsoft128 lghi %r0,`0x80|0x12` # decrypt AES-128 la %r1,160($key) #la %r2,0($inp) la %r4,0($out) lghi %r3,16 # single block length .long 0xb92e0042 # km %r4,%r2 - bcr 8,%r14 + bcr 8,%r14 # return if done la $out,0(%r4) # restore arguments lghi $key,-160 la $key,0($key,%r1) +.Ldsoft128: + lghi %r0,0 + c %r0,236($key) + je .Ldsoft + stmg $inp,$key,16($sp) + la $inp,160($key) + lghi $bits,128 + bras $ra,.Ldkey_internal # postponed key schedule setup + lmg $inp,$key,16($sp) .Ldsoft: - stmg %r3,%r15,24($sp) + stmg %r3,%r13,24($sp) - bras $tbl,.Ldpic -.Ldpic: aghi $tbl,AES_Td-.Ldpic + bras $tbl,1f +1: aghi $tbl,AES_Td-. llgf $s0,0($inp) llgf $s1,4($inp) @@ -478,8 +541,8 @@ AES_decrypt: st $s2,8($out) st $s3,12($out) - lmg %r6,%r15,48($sp) - br %r14 + lmg %r6,$ra,48($sp) + br $ra .size AES_decrypt,.-AES_decrypt .type _s390x_AES_decrypt,\@function @@ -641,6 +704,376 @@ _s390x_AES_decrypt: br $ra .size _s390x_AES_decrypt,.-_s390x_AES_decrypt + +# 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 $t1,0 + clgr $inp,$t1 + je .Lminus1 + clgr $key,$t1 + je .Lminus1 + + lghi $t1,128 + clr $bits,$t1 + je .Lproceed128 + lghi $t1,192 + clr $bits,$t1 + je .Lekey_internal + lghi $t1,256 + clr $bits,$t1 + je .Lekey_internal + lghi %r2,-2 + br %r14 + +.align 4 +.Lproceed128: + lghi %r0,0 # query capability vector + la %r1,16($sp) + .long 0xb92e0042 # km %r4,%r2 + lg %r0,16($sp) + tmhl %r0,`0x8000>>2` + jz .Lekey_internal + + l $t1,0($inp) # just copy 128 bits... + l $t2,4($inp) + l $bits,8($inp) + l $inp,12($inp) + st $t1,0($key) + st $t2,4($key) + st $bits,8($key) + st $inp,12($key) + lghi $t1,10 + st $t1,236($key) # ... postpone key setup + st $t1,240($key) + lghi %r2,0 + br %r14 + +.align 16 +.Lekey_internal: + stmg %r6,%r13,48($sp) # all volatile regs, but $ra! + + bras $tbl,1f +1: aghi $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 $t1,128 + cr $bits,$t1 + jne .Lnot128 + + llill $mask,0xff + lghi $t3,0 # i=0 + lghi $rounds,10 + st $t3,236($key) # mark as set up + st $rounds,240($key) + +.align 8 +.L128_loop: + 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 + 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] + 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 4 +.Lnot128: + llgf $t1,16($inp) + llgf $t2,20($inp) + st $t1,16($key) + st $t2,20($key) + lghi $t1,192 + cr $bits,$t1 + jne .Lnot192 + + llill $mask,0xff + lghi $t3,0 # i=0 + lghi $rounds,12 + st $rounds,240($key) + lghi $rounds,8 + +.align 8 +.L192_loop: + srlg $i1,$t2,8 + srlg $i2,$t2,16 + srlg $i3,$t2,24 + nr $t2,$mask + nr $i1,$mask + nr $i2,$mask + 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[5]>>0]<<8 + icm $t2,4,0($i1) # Te4[rk[5]>>8]<<16 + icm $t2,8,0($i2) # Te4[rk[5]>>16]<<24 + icm $t2,1,0($i3) # Te4[rk[5]>>24] + x $t2,256($t3,$tbl) # rcon[i] + xr $s0,$t2 # 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 4 +.L192_continue: + lgr $t2,$s3 + x $t2,16($key) # rk[10]=rk[4]^rk[9] + st $t2,40($key) + x $t2,20($key) # rk[11]=rk[5]^rk[10] + st $t2,44($key) + la $key,24($key) # key+=6 + la $t3,4($t3) # i++ + j .L192_loop + +.align 4 +.Lnot192: + llgf $t1,24($inp) + llgf $t2,28($inp) + st $t1,24($key) + st $t2,28($key) + llill $mask,0xff + lghi $t3,0 # i=0 + lghi $rounds,14 + st $rounds,240($key) + lghi $rounds,7 + +.align 8 +.L256_loop: + srlg $i1,$t2,8 + srlg $i2,$t2,16 + srlg $i3,$t2,24 + nr $t2,$mask + nr $i1,$mask + nr $i2,$mask + 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[7]>>0]<<8 + icm $t2,4,0($i1) # Te4[rk[7]>>8]<<16 + icm $t2,8,0($i2) # Te4[rk[7]>>16]<<24 + icm $t2,1,0($i3) # Te4[rk[7]>>24] + x $t2,256($t3,$tbl) # rcon[i] + xr $s0,$t2 # 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 4 +.L256_continue: + lgr $t2,$s3 # temp=rk[11] + srlg $i1,$s3,8 + srlg $i2,$s3,16 + srlg $i3,$s3,24 + nr $t2,$mask + nr $i1,$mask + nr $i2,$mask + la $t2,0($t2,$tbl) + la $i1,0($i1,$tbl) + la $i2,0($i2,$tbl) + la $i3,0($i3,$tbl) + icm $t2,1,0($t2) # Te4[rk[11]>>0] + icm $t2,2,0($i1) # Te4[rk[11]>>8]<<8 + icm $t2,4,0($i2) # Te4[rk[11]>>16]<<16 + icm $t2,8,0($i3) # Te4[rk[11]>>24]<<24 + x $t2,16($key) # rk[12]=rk[4]^... + st $t2,48($key) + x $t2,20($key) # rk[13]=rk[5]^rk[12] + st $t2,52($key) + x $t2,24($key) # rk[14]=rk[6]^rk[13] + st $t2,56($key) + x $t2,28($key) # rk[15]=rk[7]^rk[14] + st $t2,60($key) + + la $key,32($key) # key+=8 + la $t3,4($t3) # i++ + j .L256_loop +.align 4 +.Lminus1: + lghi %r2,-1 + br %r14 +.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 [other] volatile registers! + bras $ra,AES_set_encrypt_key + lg $key,32($sp) + lg $ra,112($sp) + ltgr %r2,%r2 + bnzr $ra + + lghi $t1,10 + c $t1,240($key) + jne .Lgo + lghi $t1,0 + c $t1,236($key) + je .Lgo + + l $t1,0($key) # just copy 128 bits otherwise + l $t2,4($key) + l $t3,8($key) + l $bits,12($key) + st $t1,160($key) + st $t2,164($key) + st $t3,168($key) + st $bits,172($key) + lghi %r2,0 + 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) + +.Lgo: llgf $rounds,240($key) + lghi $i1,0 + sllg $i2,$rounds,4 + srl $rounds,1 + +.align 8 +.Linv: l $s0,0($i1,$key) + l $s1,4($i1,$key) + l $s2,8($i1,$key) + l $s3,12($i1,$key) + l $t1,0($i2,$key) + l $t2,4($i2,$key) + l $t3,8($i2,$key) + l $i3,12($i2,$key) + st $s0,0($i2,$key) + st $s1,4($i2,$key) + st $s2,8($i2,$key) + st $s3,12($i2,$key) + st $t1,0($i1,$key) + st $t2,4($i1,$key) + st $t3,8($i1,$key) + st $i3,12($i1,$key) + aghi $i1,16 + aghi $i2,-16 + 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 + oill $mask80,0x8080 + llilh $mask1b,0x1b1b + oill $mask1b,0x1b1b + llilh $maskfe,0xfefe + oill $maskfe,0xfefe + +.align 8 +.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 $s0,$s1 # ^=tp2^tp1 + xr $s0,$s2 # ^=tp4^tp1 + xr $s0,$s3 # ^= tp8[^(tp4^tp1)^(tp2^tp1)=tp4^tp2] + xr $s1,$s3 # tp2^tp1^tp8 + rll $s1,$s1,8 + xr $s0,$s1 # ^= ROTATE(tp8^tp2^tp1,24) + xr $s2,$s3 # tp4^tp1^tp8 + rll $s2,$s2,16 + xr $s0,$s2 # ^= ROTATE(tp8^tp4^tp1,16) + rll $s3,$s3,24 + xr $s0,$s3 # ^= ROTATE(tp8,8) + + st $s0,16($key) + la $key,4($key) + brct $rounds,.Lmix + + lmg %r6,%r13,48($sp)# this was saved by AES_set_encrypt_key! + lghi %r2,0 + br $ra +.size AES_set_decrypt_key,.-AES_set_decrypt_key .string "AES for s390x, CRYPTOGAMS by " ___