| #!/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/. |
| # ==================================================================== |
| |
| # SHA512 block procedure for ARMv4. September 2007. |
| |
| # This code is ~4.5 (four and a half) times faster than code generated |
| # by gcc 3.4 and it spends ~72 clock cycles per byte. |
| |
| # Byte order [in]dependence. ========================================= |
| # |
| # Caller is expected to maintain specific *dword* order in h[0-7], |
| # namely with most significant dword at *lower* address, which is |
| # reflected in below two parameters. *Byte* order within these dwords |
| # in turn is whatever *native* byte order on current platform. |
| $hi=0; |
| $lo=4; |
| # ==================================================================== |
| |
| $output=shift; |
| open STDOUT,">$output"; |
| |
| $ctx="r0"; |
| $inp="r1"; |
| $len="r2"; |
| $Tlo="r3"; |
| $Thi="r4"; |
| $Alo="r5"; |
| $Ahi="r6"; |
| $Elo="r7"; |
| $Ehi="r8"; |
| $t0="r9"; |
| $t1="r10"; |
| $t2="r11"; |
| $t3="r12"; |
| ############ r13 is stack pointer |
| $Ktbl="r14"; |
| ############ r15 is program counter |
| |
| $Aoff=8*0; |
| $Boff=8*1; |
| $Coff=8*2; |
| $Doff=8*3; |
| $Eoff=8*4; |
| $Foff=8*5; |
| $Goff=8*6; |
| $Hoff=8*7; |
| $Xoff=8*8; |
| |
| sub BODY_00_15() { |
| my $magic = shift; |
| $code.=<<___; |
| ldr $t2,[sp,#$Hoff+0] @ h.lo |
| ldr $t3,[sp,#$Hoff+4] @ h.hi |
| @ Sigma1(x) (ROTR((x),14) ^ ROTR((x),18) ^ ROTR((x),41)) |
| @ LO lo>>14^hi<<18 ^ lo>>18^hi<<14 ^ hi>>9^lo<<23 |
| @ HI hi>>14^lo<<18 ^ hi>>18^lo<<14 ^ lo>>9^hi<<23 |
| mov $t0,$Elo,lsr#14 |
| mov $t1,$Ehi,lsr#14 |
| eor $t0,$t0,$Ehi,lsl#18 |
| eor $t1,$t1,$Elo,lsl#18 |
| eor $t0,$t0,$Elo,lsr#18 |
| eor $t1,$t1,$Ehi,lsr#18 |
| eor $t0,$t0,$Ehi,lsl#14 |
| eor $t1,$t1,$Elo,lsl#14 |
| eor $t0,$t0,$Ehi,lsr#9 |
| eor $t1,$t1,$Elo,lsr#9 |
| eor $t0,$t0,$Elo,lsl#23 |
| eor $t1,$t1,$Ehi,lsl#23 @ Sigma1(e) |
| adds $Tlo,$Tlo,$t0 |
| adc $Thi,$Thi,$t1 @ T += Sigma1(e) |
| adds $Tlo,$Tlo,$t2 |
| adc $Thi,$Thi,$t3 @ T += h |
| |
| ldr $t0,[sp,#$Foff+0] @ f.lo |
| ldr $t1,[sp,#$Foff+4] @ f.hi |
| ldr $t2,[sp,#$Goff+0] @ g.lo |
| ldr $t3,[sp,#$Goff+4] @ g.hi |
| str $Elo,[sp,#$Eoff+0] |
| str $Ehi,[sp,#$Eoff+4] |
| str $Alo,[sp,#$Aoff+0] |
| str $Ahi,[sp,#$Aoff+4] |
| |
| eor $t0,$t0,$t2 |
| eor $t1,$t1,$t3 |
| and $t0,$t0,$Elo |
| and $t1,$t1,$Ehi |
| eor $t0,$t0,$t2 |
| eor $t1,$t1,$t3 @ Ch(e,f,g) |
| |
| ldr $t2,[$Ktbl,#4] @ K[i].lo |
| ldr $t3,[$Ktbl,#0] @ K[i].hi |
| ldr $Elo,[sp,#$Doff+0] @ d.lo |
| ldr $Ehi,[sp,#$Doff+4] @ d.hi |
| |
| adds $Tlo,$Tlo,$t0 |
| adc $Thi,$Thi,$t1 @ T += Ch(e,f,g) |
| adds $Tlo,$Tlo,$t2 |
| adc $Thi,$Thi,$t3 @ T += K[i] |
| adds $Elo,$Elo,$Tlo |
| adc $Ehi,$Ehi,$Thi @ d += T |
| |
| and $t0,$t2,#0xff |
| teq $t0,#$magic |
| orreq $Ktbl,$Ktbl,#1 |
| |
| ldr $t2,[sp,#$Boff+0] @ b.lo |
| ldr $t3,[sp,#$Coff+0] @ c.lo |
| @ Sigma0(x) (ROTR((x),28) ^ ROTR((x),34) ^ ROTR((x),39)) |
| @ LO lo>>28^hi<<4 ^ hi>>2^lo<<30 ^ hi>>7^lo<<25 |
| @ HI hi>>28^lo<<4 ^ lo>>2^hi<<30 ^ lo>>7^hi<<25 |
| mov $t0,$Alo,lsr#28 |
| mov $t1,$Ahi,lsr#28 |
| eor $t0,$t0,$Ahi,lsl#4 |
| eor $t1,$t1,$Alo,lsl#4 |
| eor $t0,$t0,$Ahi,lsr#2 |
| eor $t1,$t1,$Alo,lsr#2 |
| eor $t0,$t0,$Alo,lsl#30 |
| eor $t1,$t1,$Ahi,lsl#30 |
| eor $t0,$t0,$Ahi,lsr#7 |
| eor $t1,$t1,$Alo,lsr#7 |
| eor $t0,$t0,$Alo,lsl#25 |
| eor $t1,$t1,$Ahi,lsl#25 @ Sigma0(a) |
| adds $Tlo,$Tlo,$t0 |
| adc $Thi,$Thi,$t1 @ T += Sigma0(a) |
| |
| and $t0,$Alo,$t2 |
| orr $Alo,$Alo,$t2 |
| ldr $t1,[sp,#$Boff+4] @ b.hi |
| ldr $t2,[sp,#$Coff+4] @ c.hi |
| and $Alo,$Alo,$t3 |
| orr $Alo,$Alo,$t0 @ Maj(a,b,c).lo |
| and $t3,$Ahi,$t1 |
| orr $Ahi,$Ahi,$t1 |
| and $Ahi,$Ahi,$t2 |
| orr $Ahi,$Ahi,$t3 @ Maj(a,b,c).hi |
| adds $Alo,$Alo,$Tlo |
| adc $Ahi,$Ahi,$Thi @ h += T |
| |
| sub sp,sp,#8 |
| add $Ktbl,$Ktbl,#8 |
| ___ |
| } |
| $code=<<___; |
| .text |
| .code 32 |
| .type K512,%object |
| .align 5 |
| K512: |
| .word 0x428a2f98,0xd728ae22, 0x71374491,0x23ef65cd |
| .word 0xb5c0fbcf,0xec4d3b2f, 0xe9b5dba5,0x8189dbbc |
| .word 0x3956c25b,0xf348b538, 0x59f111f1,0xb605d019 |
| .word 0x923f82a4,0xaf194f9b, 0xab1c5ed5,0xda6d8118 |
| .word 0xd807aa98,0xa3030242, 0x12835b01,0x45706fbe |
| .word 0x243185be,0x4ee4b28c, 0x550c7dc3,0xd5ffb4e2 |
| .word 0x72be5d74,0xf27b896f, 0x80deb1fe,0x3b1696b1 |
| .word 0x9bdc06a7,0x25c71235, 0xc19bf174,0xcf692694 |
| .word 0xe49b69c1,0x9ef14ad2, 0xefbe4786,0x384f25e3 |
| .word 0x0fc19dc6,0x8b8cd5b5, 0x240ca1cc,0x77ac9c65 |
| .word 0x2de92c6f,0x592b0275, 0x4a7484aa,0x6ea6e483 |
| .word 0x5cb0a9dc,0xbd41fbd4, 0x76f988da,0x831153b5 |
| .word 0x983e5152,0xee66dfab, 0xa831c66d,0x2db43210 |
| .word 0xb00327c8,0x98fb213f, 0xbf597fc7,0xbeef0ee4 |
| .word 0xc6e00bf3,0x3da88fc2, 0xd5a79147,0x930aa725 |
| .word 0x06ca6351,0xe003826f, 0x14292967,0x0a0e6e70 |
| .word 0x27b70a85,0x46d22ffc, 0x2e1b2138,0x5c26c926 |
| .word 0x4d2c6dfc,0x5ac42aed, 0x53380d13,0x9d95b3df |
| .word 0x650a7354,0x8baf63de, 0x766a0abb,0x3c77b2a8 |
| .word 0x81c2c92e,0x47edaee6, 0x92722c85,0x1482353b |
| .word 0xa2bfe8a1,0x4cf10364, 0xa81a664b,0xbc423001 |
| .word 0xc24b8b70,0xd0f89791, 0xc76c51a3,0x0654be30 |
| .word 0xd192e819,0xd6ef5218, 0xd6990624,0x5565a910 |
| .word 0xf40e3585,0x5771202a, 0x106aa070,0x32bbd1b8 |
| .word 0x19a4c116,0xb8d2d0c8, 0x1e376c08,0x5141ab53 |
| .word 0x2748774c,0xdf8eeb99, 0x34b0bcb5,0xe19b48a8 |
| .word 0x391c0cb3,0xc5c95a63, 0x4ed8aa4a,0xe3418acb |
| .word 0x5b9cca4f,0x7763e373, 0x682e6ff3,0xd6b2b8a3 |
| .word 0x748f82ee,0x5defb2fc, 0x78a5636f,0x43172f60 |
| .word 0x84c87814,0xa1f0ab72, 0x8cc70208,0x1a6439ec |
| .word 0x90befffa,0x23631e28, 0xa4506ceb,0xde82bde9 |
| .word 0xbef9a3f7,0xb2c67915, 0xc67178f2,0xe372532b |
| .word 0xca273ece,0xea26619c, 0xd186b8c7,0x21c0c207 |
| .word 0xeada7dd6,0xcde0eb1e, 0xf57d4f7f,0xee6ed178 |
| .word 0x06f067aa,0x72176fba, 0x0a637dc5,0xa2c898a6 |
| .word 0x113f9804,0xbef90dae, 0x1b710b35,0x131c471b |
| .word 0x28db77f5,0x23047d84, 0x32caab7b,0x40c72493 |
| .word 0x3c9ebe0a,0x15c9bebc, 0x431d67c4,0x9c100d4c |
| .word 0x4cc5d4be,0xcb3e42b6, 0x597f299c,0xfc657e2a |
| .word 0x5fcb6fab,0x3ad6faec, 0x6c44198c,0x4a475817 |
| .size K512,.-K512 |
| |
| .global sha512_block_data_order |
| .type sha512_block_data_order,%function |
| sha512_block_data_order: |
| sub r3,pc,#8 @ sha512_block_data_order |
| add $len,$inp,$len,lsl#7 @ len to point at the end of inp |
| stmdb sp!,{r4-r12,lr} |
| sub $Ktbl,r3,#640 @ K512 |
| sub sp,sp,#9*8 |
| |
| ldr $Elo,[$ctx,#$Eoff+$lo] |
| ldr $Ehi,[$ctx,#$Eoff+$hi] |
| ldr $t0, [$ctx,#$Goff+$lo] |
| ldr $t1, [$ctx,#$Goff+$hi] |
| ldr $t2, [$ctx,#$Hoff+$lo] |
| ldr $t3, [$ctx,#$Hoff+$hi] |
| .Loop: |
| str $t0, [sp,#$Goff+0] |
| str $t1, [sp,#$Goff+4] |
| str $t2, [sp,#$Hoff+0] |
| str $t3, [sp,#$Hoff+4] |
| ldr $Alo,[$ctx,#$Aoff+$lo] |
| ldr $Ahi,[$ctx,#$Aoff+$hi] |
| ldr $Tlo,[$ctx,#$Boff+$lo] |
| ldr $Thi,[$ctx,#$Boff+$hi] |
| ldr $t0, [$ctx,#$Coff+$lo] |
| ldr $t1, [$ctx,#$Coff+$hi] |
| ldr $t2, [$ctx,#$Doff+$lo] |
| ldr $t3, [$ctx,#$Doff+$hi] |
| str $Tlo,[sp,#$Boff+0] |
| str $Thi,[sp,#$Boff+4] |
| str $t0, [sp,#$Coff+0] |
| str $t1, [sp,#$Coff+4] |
| str $t2, [sp,#$Doff+0] |
| str $t3, [sp,#$Doff+4] |
| ldr $Tlo,[$ctx,#$Foff+$lo] |
| ldr $Thi,[$ctx,#$Foff+$hi] |
| str $Tlo,[sp,#$Foff+0] |
| str $Thi,[sp,#$Foff+4] |
| |
| .L00_15: |
| ldrb $Tlo,[$inp,#7] |
| ldrb $t0, [$inp,#6] |
| ldrb $t1, [$inp,#5] |
| ldrb $t2, [$inp,#4] |
| ldrb $Thi,[$inp,#3] |
| ldrb $t3, [$inp,#2] |
| orr $Tlo,$Tlo,$t0,lsl#8 |
| ldrb $t0, [$inp,#1] |
| orr $Tlo,$Tlo,$t1,lsl#16 |
| ldrb $t1, [$inp],#8 |
| orr $Tlo,$Tlo,$t2,lsl#24 |
| orr $Thi,$Thi,$t3,lsl#8 |
| orr $Thi,$Thi,$t0,lsl#16 |
| orr $Thi,$Thi,$t1,lsl#24 |
| str $Tlo,[sp,#$Xoff+0] |
| str $Thi,[sp,#$Xoff+4] |
| ___ |
| &BODY_00_15(0x94); |
| $code.=<<___; |
| tst $Ktbl,#1 |
| beq .L00_15 |
| bic $Ktbl,$Ktbl,#1 |
| |
| .L16_79: |
| ldr $t0,[sp,#`$Xoff+8*(16-1)`+0] |
| ldr $t1,[sp,#`$Xoff+8*(16-1)`+4] |
| ldr $t2,[sp,#`$Xoff+8*(16-14)`+0] |
| ldr $t3,[sp,#`$Xoff+8*(16-14)`+4] |
| |
| @ sigma0(x) (ROTR((x),1) ^ ROTR((x),8) ^ ((x)>>7)) |
| @ LO lo>>1^hi<<31 ^ lo>>8^hi<<24 ^ lo>>7^hi<<25 |
| @ HI hi>>1^lo<<31 ^ hi>>8^lo<<24 ^ hi>>7 |
| mov $Tlo,$t0,lsr#1 |
| mov $Thi,$t1,lsr#1 |
| eor $Tlo,$Tlo,$t1,lsl#31 |
| eor $Thi,$Thi,$t0,lsl#31 |
| eor $Tlo,$Tlo,$t0,lsr#8 |
| eor $Thi,$Thi,$t1,lsr#8 |
| eor $Tlo,$Tlo,$t1,lsl#24 |
| eor $Thi,$Thi,$t0,lsl#24 |
| eor $Tlo,$Tlo,$t0,lsr#7 |
| eor $Thi,$Thi,$t1,lsr#7 |
| eor $Tlo,$Tlo,$t1,lsl#25 |
| |
| @ sigma1(x) (ROTR((x),19) ^ ROTR((x),61) ^ ((x)>>6)) |
| @ LO lo>>19^hi<<13 ^ hi>>29^lo<<3 ^ lo>>6^hi<<26 |
| @ HI hi>>19^lo<<13 ^ lo>>29^hi<<3 ^ hi>>6 |
| mov $t0,$t2,lsr#19 |
| mov $t1,$t3,lsr#19 |
| eor $t0,$t0,$t3,lsl#13 |
| eor $t1,$t1,$t2,lsl#13 |
| eor $t0,$t0,$t3,lsr#29 |
| eor $t1,$t1,$t2,lsr#29 |
| eor $t0,$t0,$t2,lsl#3 |
| eor $t1,$t1,$t3,lsl#3 |
| eor $t0,$t0,$t2,lsr#6 |
| eor $t1,$t1,$t3,lsr#6 |
| eor $t0,$t0,$t3,lsl#26 |
| |
| ldr $t2,[sp,#`$Xoff+8*(16-9)`+0] |
| ldr $t3,[sp,#`$Xoff+8*(16-9)`+4] |
| adds $Tlo,$Tlo,$t0 |
| adc $Thi,$Thi,$t1 |
| |
| ldr $t0,[sp,#`$Xoff+8*16`+0] |
| ldr $t1,[sp,#`$Xoff+8*16`+4] |
| adds $Tlo,$Tlo,$t2 |
| adc $Thi,$Thi,$t3 |
| adds $Tlo,$Tlo,$t0 |
| adc $Thi,$Thi,$t1 |
| str $Tlo,[sp,#$Xoff+0] |
| str $Thi,[sp,#$Xoff+4] |
| ___ |
| &BODY_00_15(0x17); |
| $code.=<<___; |
| tst $Ktbl,#1 |
| beq .L16_79 |
| bic $Ktbl,$Ktbl,#1 |
| |
| ldr $Tlo,[sp,#$Boff+0] |
| ldr $Thi,[sp,#$Boff+4] |
| ldr $t0, [$ctx,#$Aoff+$lo] |
| ldr $t1, [$ctx,#$Aoff+$hi] |
| ldr $t2, [$ctx,#$Boff+$lo] |
| ldr $t3, [$ctx,#$Boff+$hi] |
| adds $t0,$Alo,$t0 |
| adc $t1,$Ahi,$t1 |
| adds $t2,$Tlo,$t2 |
| adc $t3,$Thi,$t3 |
| str $t0, [$ctx,#$Aoff+$lo] |
| str $t1, [$ctx,#$Aoff+$hi] |
| str $t2, [$ctx,#$Boff+$lo] |
| str $t3, [$ctx,#$Boff+$hi] |
| |
| ldr $Alo,[sp,#$Coff+0] |
| ldr $Ahi,[sp,#$Coff+4] |
| ldr $Tlo,[sp,#$Doff+0] |
| ldr $Thi,[sp,#$Doff+4] |
| ldr $t0, [$ctx,#$Coff+$lo] |
| ldr $t1, [$ctx,#$Coff+$hi] |
| ldr $t2, [$ctx,#$Doff+$lo] |
| ldr $t3, [$ctx,#$Doff+$hi] |
| adds $t0,$Alo,$t0 |
| adc $t1,$Ahi,$t1 |
| adds $t2,$Tlo,$t2 |
| adc $t3,$Thi,$t3 |
| str $t0, [$ctx,#$Coff+$lo] |
| str $t1, [$ctx,#$Coff+$hi] |
| str $t2, [$ctx,#$Doff+$lo] |
| str $t3, [$ctx,#$Doff+$hi] |
| |
| ldr $Tlo,[sp,#$Foff+0] |
| ldr $Thi,[sp,#$Foff+4] |
| ldr $t0, [$ctx,#$Eoff+$lo] |
| ldr $t1, [$ctx,#$Eoff+$hi] |
| ldr $t2, [$ctx,#$Foff+$lo] |
| ldr $t3, [$ctx,#$Foff+$hi] |
| adds $Elo,$Elo,$t0 |
| adc $Ehi,$Ehi,$t1 |
| adds $t2,$Tlo,$t2 |
| adc $t3,$Thi,$t3 |
| str $Elo,[$ctx,#$Eoff+$lo] |
| str $Ehi,[$ctx,#$Eoff+$hi] |
| str $t2, [$ctx,#$Foff+$lo] |
| str $t3, [$ctx,#$Foff+$hi] |
| |
| ldr $Alo,[sp,#$Goff+0] |
| ldr $Ahi,[sp,#$Goff+4] |
| ldr $Tlo,[sp,#$Hoff+0] |
| ldr $Thi,[sp,#$Hoff+4] |
| ldr $t0, [$ctx,#$Goff+$lo] |
| ldr $t1, [$ctx,#$Goff+$hi] |
| ldr $t2, [$ctx,#$Hoff+$lo] |
| ldr $t3, [$ctx,#$Hoff+$hi] |
| adds $t0,$Alo,$t0 |
| adc $t1,$Ahi,$t1 |
| adds $t2,$Tlo,$t2 |
| adc $t3,$Thi,$t3 |
| str $t0, [$ctx,#$Goff+$lo] |
| str $t1, [$ctx,#$Goff+$hi] |
| str $t2, [$ctx,#$Hoff+$lo] |
| str $t3, [$ctx,#$Hoff+$hi] |
| |
| add sp,sp,#640 |
| sub $Ktbl,$Ktbl,#640 |
| |
| teq $inp,$len |
| bne .Loop |
| |
| add sp,sp,#8*9 @ destroy frame |
| ldmia sp!,{r4-r12,lr} |
| tst lr,#1 |
| moveq pc,lr @ be binary compatible with V4, yet |
| bx lr @ interoperable with Thumb ISA:-) |
| .size sha512_block_data_order,.-sha512_block_data_order |
| .asciz "SHA512 block transform for ARMv4, CRYPTOGAMS by <appro\@openssl.org>" |
| .align 2 |
| ___ |
| |
| $code =~ s/\`([^\`]*)\`/eval $1/gem; |
| $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 |
| print $code; |
| close STDOUT; # enforce flush |