diff options
author | Andy Polyakov <appro@openssl.org> | 2016-11-25 13:11:09 +0100 |
---|---|---|
committer | Dr. Stephen Henson <steve@openssl.org> | 2017-08-30 21:26:43 +0100 |
commit | 7d91d9ea6b2281d847e6dcb05e6e3bbd88b60404 (patch) | |
tree | 5356dbda3ea32c812d5e15c6de88b3a08f8834fd | |
parent | e1a9268d81238aa12acfb9725a13c858c8937cd7 (diff) |
Add some C64x assembly modules [by minor adjustments of C64x+ modules].
AES, SHA256 and SHA512 modules can actually replace corresponding
C64x+ modules. This is because C64x+ instructions don't actually
provide "killer-argument" advantage in these modules. As for SHA1,
even though its performance exactly same, C64x+ module is more
responsive to interrupts, i.e. doesn't inhibit them for as long
periods as C64x module.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Stephen Henson <steve@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4265)
(cherry picked from commit 5526e5791f1426553b6f4806d1ac82efd6ab33bc)
-rw-r--r-- | crypto/aes/asm/aes-c64x.pl | 1375 | ||||
-rw-r--r-- | crypto/c64xcpuid.pl | 326 | ||||
-rw-r--r-- | crypto/sha/asm/sha1-c64x-large.pl | 230 | ||||
-rw-r--r-- | crypto/sha/asm/sha1-c64x.pl | 330 | ||||
-rw-r--r-- | crypto/sha/asm/sha256-c64x.pl | 313 | ||||
-rw-r--r-- | crypto/sha/asm/sha512-c64x.pl | 437 |
6 files changed, 3011 insertions, 0 deletions
diff --git a/crypto/aes/asm/aes-c64x.pl b/crypto/aes/asm/aes-c64x.pl new file mode 100644 index 0000000000..0817128c1b --- /dev/null +++ b/crypto/aes/asm/aes-c64x.pl @@ -0,0 +1,1375 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov <appro@openssl.org> 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/. +# ==================================================================== +# +# [Endian-neutral] AES for C64x. +# +# Even though loops are scheduled for 13 cycles, and thus expected +# performance is ~8.5 cycles per byte processed with 128-bit key, +# measured performance turned to be ~10 cycles per byte. Discrepancy +# must be caused by limitations of L1D memory banking(*), see SPRU871 +# TI publication for further details. If any consolation it's still +# ~20% faster than TI's linear assembly module anyway... Compared to +# aes_core.c compiled with cl6x 6.0 with -mv6400+ -o2 options this +# code is 3.75x faster and almost 3x smaller (tables included). +# +# (*) This means that there might be subtle correlation between data +# and timing and one can wonder if it can be ... attacked:-( +# On the other hand this also means that *if* one chooses to +# implement *4* T-tables variant [instead of 1 T-table as in +# this implementation, or in addition to], then one ought to +# *interleave* them. Even though it complicates addressing, +# references to interleaved tables would be guaranteed not to +# clash. I reckon that it should be possible to break 8 cycles +# per byte "barrier," i.e. improve by ~20%, naturally at the +# cost of 8x increased pressure on L1D. 8x because you'd have +# to interleave both Te and Td tables... + +while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {} +open STDOUT,">$output"; + +($TEA,$TEB)=("A5","B5"); +($KPA,$KPB)=("A3","B1"); +@K=("A6","B6","A7","B7"); +@s=("A8","B8","A9","B9"); +@Te0=@Td0=("A16","B16","A17","B17"); +@Te1=@Td1=("A18","B18","A19","B19"); +@Te2=@Td2=("A20","B20","A21","B21"); +@Te3=@Td3=("A22","B22","A23","B23"); + +$code=<<___; + .text + + .if .ASSEMBLER_VERSION<7000000 + .asg 0,__TI_EABI__ + .endif + .if __TI_EABI__ + .nocmp + .asg AES_encrypt,_AES_encrypt + .asg AES_decrypt,_AES_decrypt + .asg AES_set_encrypt_key,_AES_set_encrypt_key + .asg AES_set_decrypt_key,_AES_set_decrypt_key + .asg AES_ctr32_encrypt,_AES_ctr32_encrypt + .endif + + .asg B3,RA + .asg A4,INP + .asg B4,OUT + .asg A6,KEY + .asg A4,RET + .asg B15,SP + + .eval 24,EXT0 + .eval 16,EXT1 + .eval 8,EXT2 + .eval 0,EXT3 + .eval 8,TBL1 + .eval 16,TBL2 + .eval 24,TBL3 + + .if .BIG_ENDIAN + .eval 24-EXT0,EXT0 + .eval 24-EXT1,EXT1 + .eval 24-EXT2,EXT2 + .eval 24-EXT3,EXT3 + .eval 32-TBL1,TBL1 + .eval 32-TBL2,TBL2 + .eval 32-TBL3,TBL3 + .endif + + .global _AES_encrypt +_AES_encrypt: + .asmfunc + MVK 1,B2 +__encrypt: + .if __TI_EABI__ + [B2] LDNDW *INP++,A9:A8 ; load input +|| MVKL \$PCR_OFFSET(AES_Te,__encrypt),$TEA +|| ADDKPC __encrypt,B0 + [B2] LDNDW *INP++,B9:B8 +|| MVKH \$PCR_OFFSET(AES_Te,__encrypt),$TEA +|| ADD 0,KEY,$KPA +|| ADD 4,KEY,$KPB + .else + [B2] LDNDW *INP++,A9:A8 ; load input +|| MVKL (AES_Te-__encrypt),$TEA +|| ADDKPC __encrypt,B0 + [B2] LDNDW *INP++,B9:B8 +|| MVKH (AES_Te-__encrypt),$TEA +|| ADD 0,KEY,$KPA +|| ADD 4,KEY,$KPB + .endif + LDW *$KPA++[2],$Te0[0] ; zero round key +|| LDW *$KPB++[2],$Te0[1] +|| MVK 60,A0 +|| ADD B0,$TEA,$TEA ; AES_Te + LDW *KEY[A0],B0 ; rounds +|| MVK 1024,A0 ; sizeof(AES_Te) + LDW *$KPA++[2],$Te0[2] +|| LDW *$KPB++[2],$Te0[3] +|| MV $TEA,$TEB + NOP + .if .BIG_ENDIAN + MV A9,$s[0] +|| MV A8,$s[1] +|| MV B9,$s[2] +|| MV B8,$s[3] + .else + MV A8,$s[0] +|| MV A9,$s[1] +|| MV B8,$s[2] +|| MV B9,$s[3] + .endif + XOR $Te0[0],$s[0],$s[0] +|| XOR $Te0[1],$s[1],$s[1] +|| LDW *$KPA++[2],$K[0] ; 1st round key +|| LDW *$KPB++[2],$K[1] + + LDW *$KPA++[2],$K[2] +|| LDW *$KPB++[2],$K[3] +|| EXTU $s[1],EXT1,24,$Te1[1] +|| EXTU $s[0],EXT3,24,$Te3[0] +|| SUB B0,1,B0 +;;==================================================================== +enc_loop?: + LDW *${TEB}[$Te1[1]],$Te1[1] ; Te1[s1>>8], t0 +|| LDW *${TEA}[$Te3[0]],$Te3[0] ; Te3[s0>>24], t1 +|| XOR $s[2],$Te0[2],$s[2] ; modulo-scheduled +|| XOR $s[3],$Te0[3],$s[3] ; modulo-scheduled +|| EXTU $s[1],EXT3,24,$Te3[1] +|| EXTU $s[0],EXT1,24,$Te1[0] + LDW *${TEB}[$Te3[1]],$Te3[1] ; Te3[s1>>24], t2 +|| LDW *${TEA}[$Te1[0]],$Te1[0] ; Te1[s0>>8], t3 +|| EXTU $s[2],EXT2,24,$Te2[2] +|| EXTU $s[3],EXT2,24,$Te2[3] + LDW *${TEA}[$Te2[2]],$Te2[2] ; Te2[s2>>16], t0 +|| LDW *${TEB}[$Te2[3]],$Te2[3] ; Te2[s3>>16], t1 +|| EXTU $s[3],EXT3,24,$Te3[3] +|| EXTU $s[2],EXT1,24,$Te1[2] + LDW *${TEB}[$Te3[3]],$Te3[3] ; Te3[s3>>24], t0 +|| LDW *${TEA}[$Te1[2]],$Te1[2] ; Te1[s2>>8], t1 +|| EXTU $s[0],EXT2,24,$Te2[0] +|| EXTU $s[1],EXT2,24,$Te2[1] + LDW *${TEA}[$Te2[0]],$Te2[0] ; Te2[s0>>16], t2 +|| LDW *${TEB}[$Te2[1]],$Te2[1] ; Te2[s1>>16], t3 +|| EXTU $s[3],EXT1,24,$Te1[3] +|| EXTU $s[2],EXT3,24,$Te3[2] + LDW *${TEB}[$Te1[3]],$Te1[3] ; Te1[s3>>8], t2 +|| LDW *${TEA}[$Te3[2]],$Te3[2] ; Te3[s2>>24], t3 +|| ROTL $Te1[1],TBL1,$Te3[0] ; t0 +|| ROTL $Te3[0],TBL3,$Te1[1] ; t1 +|| EXTU $s[0],EXT0,24,$Te0[0] +|| EXTU $s[1],EXT0,24,$Te0[1] + LDW *${TEA}[$Te0[0]],$Te0[0] ; Te0[s0], t0 +|| LDW *${TEB}[$Te0[1]],$Te0[1] ; Te0[s1], t1 +|| ROTL $Te3[1],TBL3,$Te1[0] ; t2 +|| ROTL $Te1[0],TBL1,$Te3[1] ; t3 +|| EXTU $s[2],EXT0,24,$Te0[2] +|| EXTU $s[3],EXT0,24,$Te0[3] +|| [B0] SUB B0,1,B0 + LDW *${TEA}[$Te0[2]],$Te0[2] ; Te0[s2], t2 +|| LDW *${TEB}[$Te0[3]],$Te0[3] ; Te0[s3], t3 +|| ROTL $Te2[2],TBL2,$Te2[2] ; t0 +|| ROTL $Te2[3],TBL2,$Te2[3] ; t1 +|| XOR $K[0],$Te3[0],$s[0] +|| XOR $K[1],$Te1[1],$s[1] +|| [B0] BNOP enc_loop? + ROTL $Te3[3],TBL3,$Te1[2] ; t0 +|| ROTL $Te1[2],TBL1,$Te3[3] ; t1 +|| XOR $K[2],$Te1[0],$s[2] +|| XOR $K[3],$Te3[1],$s[3] +|| LDW *$KPA++[2],$K[0] ; next round key +|| LDW *$KPB++[2],$K[1] + ROTL $Te2[0],TBL2,$Te2[0] ; t2 +|| ROTL $Te2[1],TBL2,$Te2[1] ; t3 +|| XOR $s[0],$Te2[2],$s[0] +|| XOR $s[1],$Te2[3],$s[1] +|| LDW *$KPA++[2],$K[2] +|| LDW *$KPB++[2],$K[3] + ROTL $Te1[3],TBL1,$Te3[2] ; t2 +|| ROTL $Te3[2],TBL3,$Te1[3] ; t3 +|| XOR $s[0],$Te1[2],$s[0] +|| XOR $s[1],$Te3[3],$s[1] + XOR $s[2],$Te2[0],$s[2] +|| XOR $s[3],$Te2[1],$s[3] +|| XOR $s[0],$Te0[0],$s[0] +|| XOR $s[1],$Te0[1],$s[1] + XOR $s[2],$Te3[2],$s[2] +|| XOR $s[3],$Te1[3],$s[3] +|| EXTU $s[1],EXT1,24,$Te1[1] +|| EXTU $s[0],EXT3,24,$Te3[0] +||[!B0] ADD ${TEA},A0,${TEA} ; point to Te4 +||[!B0] ADD ${TEB},A0,${TEB} +;;==================================================================== + LDBU *${TEB}[$Te1[1]],$Te1[1] ; Te1[s1>>8], t0 +|| LDBU *${TEA}[$Te3[0]],$Te3[0] ; Te3[s0>>24], t1 +|| XOR $s[2],$Te0[2],$s[2] ; modulo-scheduled +|| XOR $s[3],$Te0[3],$s[3] ; modulo-scheduled +|| EXTU $s[0],EXT0,24,$Te0[0] +|| EXTU $s[1],EXT0,24,$Te0[1] + LDBU *${TEA}[$Te0[0]],$Te0[0] ; Te0[s0], t0 +|| LDBU *${TEB}[$Te0[1]],$Te0[1] ; Te0[s1], t1 +|| EXTU $s[3],EXT3,24,$Te3[3] +|| EXTU $s[2],EXT1,24,$Te1[2] + LDBU *${TEB}[$Te3[3]],$Te3[3] ; Te3[s3>>24], t0 +|| LDBU *${TEA}[$Te1[2]],$Te1[2] ; Te1[s2>>8], t1 +|| EXTU $s[2],EXT2,24,$Te2[2] +|| EXTU $s[3],EXT2,24,$Te2[3] + LDBU *${TEA}[$Te2[2]],$Te2[2] ; Te2[s2>>16], t0 +|| LDBU *${TEB}[$Te2[3]],$Te2[3] ; Te2[s3>>16], t1 +|| EXTU $s[1],EXT3,24,$Te3[1] +|| EXTU $s[0],EXT1,24,$Te1[0] + LDBU *${TEB}[$Te3[1]],$Te3[1] ; Te3[s1>>24], t2 +|| LDBU *${TEA}[$Te1[0]],$Te1[0] ; Te1[s0>>8], t3 +|| EXTU $s[3],EXT1,24,$Te1[3] +|| EXTU $s[2],EXT3,24,$Te3[2] + LDBU *${TEB}[$Te1[3]],$Te1[3] ; Te1[s3>>8], t2 +|| LDBU *${TEA}[$Te3[2]],$Te3[2] ; Te3[s2>>24], t3 +|| EXTU $s[2],EXT0,24,$Te0[2] +|| EXTU $s[3],EXT0,24,$Te0[3] + LDBU *${TEA}[$Te0[2]],$Te0[2] ; Te0[s2], t2 +|| LDBU *${TEB}[$Te0[3]],$Te0[3] ; Te0[s3], t3 +|| EXTU $s[0],EXT2,24,$Te2[0] +|| EXTU $s[1],EXT2,24,$Te2[1] + LDBU *${TEA}[$Te2[0]],$Te2[0] ; Te2[s0>>16], t2 +|| LDBU *${TEB}[$Te2[1]],$Te2[1] ; Te2[s1>>16], t3 + + .if .BIG_ENDIAN + PACK2 $Te0[0],$Te1[1],$Te0[0] +|| PACK2 $Te0[1],$Te1[2],$Te0[1] + PACK2 $Te2[2],$Te3[3],$Te2[2] +|| PACK2 $Te2[3],$Te3[0],$Te2[3] + PACKL4 $Te0[0],$Te2[2],$Te0[0] +|| PACKL4 $Te0[1],$Te2[3],$Te0[1] + XOR $K[0],$Te0[0],$Te0[0] ; s[0] +|| XOR $K[1],$Te0[1],$Te0[1] ; s[1] + + PACK2 $Te0[2],$Te1[3],$Te0[2] +|| PACK2 $Te0[3],$Te1[0],$Te0[3] + PACK2 $Te2[0],$Te3[1],$Te2[0] +|| PACK2 $Te2[1],$Te3[2],$Te2[1] +|| BNOP RA + PACKL4 $Te0[2],$Te2[0],$Te0[2] +|| PACKL4 $Te0[3],$Te2[1],$Te0[3] + XOR $K[2],$Te0[2],$Te0[2] ; s[2] +|| XOR $K[3],$Te0[3],$Te0[3] ; s[3] + + MV $Te0[0],A9 +|| MV $Te0[1],A8 + MV $Te0[2],B9 +|| MV $Te0[3],B8 +|| [B2] STNDW A9:A8,*OUT++ + [B2] STNDW B9:B8,*OUT++ + .else + PACK2 $Te1[1],$Te0[0],$Te1[1] +|| PACK2 $Te1[2],$Te0[1],$Te1[2] + PACK2 $Te3[3],$Te2[2],$Te3[3] +|| PACK2 $Te3[0],$Te2[3],$Te3[0] + PACKL4 $Te3[3],$Te1[1],$Te1[1] +|| PACKL4 $Te3[0],$Te1[2],$Te1[2] + XOR $K[0],$Te1[1],$Te1[1] ; s[0] +|| XOR $K[1],$Te1[2],$Te1[2] ; s[1] + + PACK2 $Te1[3],$Te0[2],$Te1[3] +|| PACK2 $Te1[0],$Te0[3],$Te1[0] + PACK2 $Te3[1],$Te2[0],$Te3[1] +|| PACK2 $Te3[2],$Te2[1],$Te3[2] +|| BNOP RA + PACKL4 $Te3[1],$Te1[3],$Te1[3] +|| PACKL4 $Te3[2],$Te1[0],$Te1[0] + XOR $K[2],$Te1[3],$Te1[3] ; s[2] +|| XOR $K[3],$Te1[0],$Te1[0] ; s[3] + + MV $Te1[1],A8 +|| MV $Te1[2],A9 + MV $Te1[3],B8 +|| MV $Te1[0],B9 +|| [B2] STNDW A9:A8,*OUT++ + [B2] STNDW B9:B8,*OUT++ + .endif + .endasmfunc + + .global _AES_decrypt +_AES_decrypt: + .asmfunc + MVK 1,B2 +__decrypt: + .if __TI_EABI__ + [B2] LDNDW *INP++,A9:A8 ; load input +|| MVKL \$PCR_OFFSET(AES_Td,__decrypt),$TEA +|| ADDKPC __decrypt,B0 + [B2] LDNDW *INP++,B9:B8 +|| MVKH \$PCR_OFFSET(AES_Td,__decrypt),$TEA +|| ADD 0,KEY,$KPA +|| ADD 4,KEY,$KPB + .else + [B2] LDNDW *INP++,A9:A8 ; load input +|| MVKL (AES_Td-__decrypt),$TEA +|| ADDKPC __decrypt,B0 + [B2] LDNDW *INP++,B9:B8 +|| MVKH (AES_Td-__decrypt),$TEA +|| ADD 0,KEY,$KPA +|| ADD 4,KEY,$KPB + .endif + LDW *$KPA++[2],$Td0[0] ; zero round key +|| LDW *$KPB++[2],$Td0[1] +|| MVK 60,A0 +|| ADD B0,$TEA,$TEA ; AES_Td + LDW *KEY[A0],B0 ; rounds +|| MVK 1024,A0 ; sizeof(AES_Td) + LDW *$KPA++[2],$Td0[2] +|| LDW *$KPB++[2],$Td0[3] +|| MV $TEA,$TEB + NOP + .if .BIG_ENDIAN + MV A9,$s[0] +|| MV A8,$s[1] +|| MV B9,$s[2] +|| MV B8,$s[3] + .else + MV A8,$s[0] +|| MV A9,$s[1] +|| MV B8,$s[2] +|| MV B9,$s[3] + .endif + XOR $Td0[0],$s[0],$s[0] +|| XOR $Td0[1],$s[1],$s[1] +|| LDW *$KPA++[2],$K[0] ; 1st round key +|| LDW *$KPB++[2],$K[1] + + LDW *$KPA++[2],$K[2] +|| LDW *$KPB++[2],$K[3] +|| EXTU $s[1],EXT3,24,$Td3[1] +|| EXTU $s[0],EXT1,24,$Td1[0] +|| SUB B0,1,B0 +;;==================================================================== +dec_loop?: + LDW *${TEB}[$Td3[1]],$Td3[1] ; Td3[s1>>24], t0 +|| LDW *${TEA}[$Td1[0]],$Td1[0] ; Td1[s0>>8], t1 +|| XOR $s[2],$Td0[2],$s[2] ; modulo-scheduled +|| XOR $s[3],$Td0[3],$s[3] ; modulo-scheduled +|| EXTU $s[1],EXT1,24,$Td1[1] +|| EXTU $s[0],EXT3,24,$Td3[0] + LDW *${TEB}[$Td1[1]],$Td1[1] ; Td1[s1>>8], t2 +|| LDW *${TEA}[$Td3[0]],$Td3[0] ; Td3[s0>>24], t3 +|| EXTU $s[2],EXT2,24,$Td2[2] +|| EXTU $s[3],EXT2,24,$Td2[3] + LDW *${TEA}[$Td2[2]],$Td2[2] ; Td2[s2>>16], t0 +|| LDW *${TEB}[$Td2[3]],$Td2[3] ; Td2[s3>>16], t1 +|| EXTU $s[3],EXT1,24,$Td1[3] +|| EXTU $s[2],EXT3,24,$Td3[2] + LDW *${TEB}[$Td1[3]],$Td1[3] ; Td1[s3>>8], t0 +|| LDW *${TEA}[$Td3[2]],$Td3[2] ; Td3[s2>>24], t1 +|| EXTU $s[0],EXT2,24,$Td2[0] +|| EXTU $s[1],EXT2,24,$Td2[1] + LDW *${TEA}[$Td2[0]],$Td2[0] ; Td2[s0>>16], t2 +|| LDW *${TEB}[$Td2[1]],$Td2[1] ; Td2[s1>>16], t3 +|| EXTU $s[3],EXT3,24,$Td3[3] +|| EXTU $s[2],EXT1,24,$Td1[2] + LDW *${TEB}[$Td3[3]],$Td3[3] ; Td3[s3>>24], t2 +|| LDW *${TEA}[$Td1[2]],$Td1[2] ; Td1[s2>>8], t3 +|| ROTL $Td3[1],TBL3,$Td1[0] ; t0 +|| ROTL $Td1[0],TBL1,$Td3[1] ; t1 +|| EXTU $s[0],EXT0,24,$Td0[0] +|| EXTU $s[1],EXT0,24,$Td0[1] + LDW *${TEA}[$Td0[0]],$Td0[0] ; Td0[s0], t0 +|| LDW *${TEB}[$Td0[1]],$Td0[1] ; Td0[s1], t1 +|| ROTL $Td1[1],TBL1,$Td3[0] ; t2 +|| ROTL $Td3[0],TBL3,$Td1[1] ; t3 +|| EXTU $s[2],EXT0,24,$Td0[2] +|| EXTU $s[3],EXT0,24,$Td0[3] +|| [B0] SUB B0,1,B0 + LDW *${TEA}[$Td0[2]],$Td0[2] ; Td0[s2], t2 +|| LDW *${TEB}[$Td0[3]],$Td0[3] ; Td0[s3], t3 +|| ROTL $Td2[2],TBL2,$Td2[2] ; t0 +|| ROTL $Td2[3],TBL2,$Td2[3] ; t1 +|| XOR $K[0],$Td1[0],$s[0] +|| XOR $K[1],$Td3[1],$s[1] +|| [B0] BNOP dec_loop? + ROTL $Td1[3],TBL1,$Td3[2] ; t0 +|| ROTL $Td3[2],TBL3,$Td1[3] ; t1 +|| XOR $K[2],$Td3[0],$s[2] +|| XOR $K[3],$Td1[1],$s[3] +|| LDW *$KPA++[2],$K[0] ; next round key +|| LDW *$KPB++[2],$K[1] + ROTL $Td2[0],TBL2,$Td2[0] ; t2 +|| ROTL $Td2[1],TBL2,$Td2[1] ; t3 +|| XOR $s[0],$Td2[2],$s[0] +|| XOR $s[1],$Td2[3],$s[1] +|| LDW *$KPA++[2],$K[2] +|| LDW *$KPB++[2],$K[3] + ROTL $Td3[3],TBL3,$Td1[2] ; t2 +|| ROTL $Td1[2],TBL1,$Td3[3] ; t3 +|| XOR $s[0],$Td3[2],$s[0] +|| XOR $s[1],$Td1[3],$s[1] + XOR $s[2],$Td2[0],$s[2] +|| XOR $s[3],$Td2[1],$s[3] +|| XOR $s[0],$Td0[0],$s[0] +|| XOR $s[1],$Td0[1],$s[1] + XOR $s[2],$Td1[2],$s[2] +|| XOR $s[3],$Td3[3],$s[3] +|| EXTU $s[1],EXT3,24,$Td3[1] +|| EXTU $s[0],EXT1,24,$Td1[0] +||[!B0] ADD ${TEA},A0,${TEA} ; point to Td4 +||[!B0] ADD ${TEB},A0,${TEB} +;;==================================================================== + LDBU *${TEB}[$Td3[1]],$Td3[1] ; Td3[s1>>24], t0 +|| LDBU *${TEA}[$Td1[0]],$Td1[0] ; Td1[s0>>8], t1 +|| XOR $s[2],$Td0[2],$s[2] ; modulo-scheduled +|| XOR $s[3],$Td0[3],$s[3] ; modulo-scheduled +|| EXTU $s[0],EXT0,24,$Td0[0] +|| EXTU $s[1],EXT0,24,$Td0[1] + LDBU *${TEA}[$Td0[0]],$Td0[0] ; Td0[s0], t0 +|| LDBU *${TEB}[$Td0[1]],$Td0[1] ; Td0[s1], t1 +|| EXTU $s[2],EXT2,24,$Td2[2] +|| EXTU $s[3],EXT2,24,$Td2[3] + LDBU *${TEA}[$Td2[2]],$Td2[2] ; Td2[s2>>16], t0 +|| LDBU *${TEB}[$Td2[3]],$Td2[3] ; Td2[s3>>16], t1 +|| EXTU $s[3],EXT1,24,$Td1[3] +|| EXTU $s[2],EXT3,24,$Td3[2] + LDBU *${TEB}[$Td1[3]],$Td1[3] ; Td1[s3>>8], t0 +|| LDBU *${TEA}[$Td3[2]],$Td3[2] ; Td3[s2>>24], t1 +|| EXTU $s[1],EXT1,24,$Td1[1] +|| EXTU $s[0],EXT3,24,$Td3[0] + LDBU *${TEB}[$Td1[1]],$Td1[1] ; Td1[s1>>8], t2 +|| LDBU *${TEA}[$Td3[0]],$Td3[0] ; Td3[s0>>24], t3 +|| EXTU $s[0],EXT2,24,$Td2[0] +|| EXTU $s[1],EXT2,24,$Td2[1] + LDBU *${TEA}[$Td2[0]],$Td2[0] ; Td2[s0>>16], t2 +|| LDBU *${TEB}[$Td2[1]],$Td2[1] ; Td2[s1>>16], t3 +|| EXTU $s[3],EXT3,24,$Td3[3] +|| EXTU $s[2],EXT1,24,$Td1[2] + LDBU *${TEB}[$Td3[3]],$Td3[3] ; Td3[s3>>24], t2 +|| LDBU *${TEA}[$Td1[2]],$Td1[2] ; Td1[s2>>8], t3 +|| EXTU $s[2],EXT0,24,$Td0[2] +|| EXTU $s[3],EXT0,24,$Td0[3] + LDBU *${TEA}[$Td0[2]],$Td0[2] ; Td0[s2], t2 +|| LDBU *${TEB}[$Td0[3]],$Td0[3] ; Td0[s3], t3 + + .if .BIG_ENDIAN + PACK2 $Td0[0],$Td1[3],$Td0[0] +|| PACK2 $Td0[1],$Td1[0],$Td0[1] + PACK2 $Td2[2],$Td3[1],$Td2[2] +|| PACK2 $Td2[3],$Td3[2],$Td2[3] + PACKL4 $Td0[0],$Td2[2],$Td0[0] +|| PACKL4 $Td0[1],$Td2[3],$Td0[1] + XOR $K[0],$Td0[0],$Td0[0] ; s[0] +|| XOR $K[1],$Td0[1],$Td0[1] ; s[1] + + PACK2 $Td0[2],$Td1[1],$Td0[2] +|| PACK2 $Td0[3],$Td1[2],$Td0[3] + PACK2 $Td2[0],$Td3[3],$Td2[0] +|| PACK2 $Td2[1],$Td3[0],$Td2[1] +|| BNOP RA + PACKL4 $Td0[2],$Td2[0],$Td0[2] +|| PACKL4 $Td0[3],$Td2[1],$Td0[3] + XOR $K[2],$Td0[2],$Td0[2] ; s[2] +|| XOR $K[3],$Td0[3],$Td0[3] ; s[3] + + MV $Td0[0],A9 +|| MV $Td0[1],A8 + MV $Td0[2],B9 +|| MV $Td0[3],B8 +|| [B2] STNDW A9:A8,*OUT++ + [B2] STNDW B9:B8,*OUT++ + .else + PACK2 $Td1[3],$Td0[0],$Td1[3] +|| PACK2 $Td1[0],$Td0[1],$Td1[0] + PACK2 $Td3[1],$Td2[2],$Td3[1] +|| PACK2 $Td3[2],$Td2[3],$Td3[2] + PACKL4 $Td3[1],$Td1[3],$Td1[3] +|| PACKL4 $Td3[2],$Td1[0],$Td1[0] + XOR $K[0],$Td1[3],$Td1[3] ; s[0] +|| XOR $K[1],$Td1[0],$Td1[0] ; s[1] + + PACK2 $Td1[1],$Td0[2],$Td1[1] +|| PACK2 $Td1[2],$Td0[3],$Td1[2] + PACK2 $Td3[3],$Td2[0],$Td3[3] +|| PACK2 $Td3[0],$Td2[1],$Td3[0] +|| BNOP RA + PACKL4 $Td3[3],$Td1[1],$Td1[1] +|| PACKL4 $Td3[0],$Td1[2],$Td1[2] + XOR $K[2],$Td1[1],$Td1[1] ; s[2] +|| XOR $K[3],$Td1[2],$Td1[2] ; s[3] + + MV $Td1[3],A8 +|| MV $Td1[0],A9 + MV $Td1[1],B8 +|| MV $Td1[2],B9 +|| [B2] STNDW A9:A8,*OUT++ + [B2] STNDW B9:B8,*OUT++ + .endif + .endasmfunc +___ +{ +my @K=(@K,@s); # extended key +my @Te4=map("B$_",(16..19)); + +my @Kx9=@Te0; # used in AES_set_decrypt_key +my @KxB=@Te1; +my @KxD=@Te2; +my @KxE=@Te3; + +$code.=<<___; + .asg OUT,BITS + + .global _AES_set_encrypt_key +_AES_set_encrypt_key: +__set_encrypt_key: + .asmfunc + MV INP,A0 +|| SHRU BITS,5,BITS ; 128-192-256 -> 4-6-8 +|| MV KEY,A1 + [!A0] B RA +||[!A0] MVK -1,RET +||[!A0] MVK 1,A1 ; only one B RA + [!A1] B RA +||[!A1] MVK -1,RET +||[!A1] MVK 0,A0 +|| MVK 0,B0 +|| MVK 0,A1 + [A0] LDNDW *INP++,A9:A8 +|| [A0] CMPEQ 4,BITS,B0 +|| [A0] CMPLT 3,BITS,A1 + [B0] B key128? +|| [A1] LDNDW *INP++,B9:B8 +|| [A0] CMPEQ 6,BITS,B0 +|| [A0] CMPLT 5,BITS,A1 + [B0] B key192? +|| [A1] LDNDW *INP++,B17:B16 +|| [A0] CMPEQ 8,BITS,B0 +|| [A0] CMPLT 7,BITS,A1 + [B0] B key256? +|| [A1] LDNDW *INP++,B19:B18 + + .if __TI_EABI__ + [A0] ADD 0,KEY,$KPA +|| [A0] ADD 4,KEY,$KPB +|| [A0] MVKL \$PCR_OFFSET(AES_Te4,__set_encrypt_key),$TEA +|| [A0] ADDKPC __set_encrypt_key,B6 + [A0] MVKH \$PCR_OFFSET(AES_Te4,__set_encrypt_key),$TEA + [A0] ADD B6,$TEA,$TEA ; AES_Te4 + .else + [A0] ADD 0,KEY,$KPA +|| [A0] ADD 4,KEY,$KPB +|| [A0] MVKL (AES_Te4-__set_encrypt_key),$TEA +|| [A0] ADDKPC __set_encrypt_key,B6 + [A0] MVKH (AES_Te4-__set_encrypt_key),$TEA + [A0] ADD B6,$TEA,$TEA ; AES_Te4 + .endif + NOP + NOP + + BNOP RA,5 +|| MVK -2,RET ; unknown bit length +|| MVK 0,B0 ; redundant +;;==================================================================== +;;==================================================================== +key128?: + .if .BIG_ENDIAN + MV A9,$K[0] +|| MV A8,$K[1] +|| MV B9,$Te4[2] +|| MV B8,$K[3] + .else + MV A8,$K[0] +|| MV A9,$K[1] +|| MV B8,$Te4[2] +|| MV B9,$K[3] + .endif + + MVK 256,A0 +|| MVK 8,B0 + + MV $TEA,$TEB +|| ADD $TEA,A0,A30 ; rcon +;;==================================================================== +loop128?: + LDW *A30++[1],A31 ; rcon[i] +|| MV $Te4[2],$K[2] +|| EXTU $K[3],EXT1,24,$Te4[0] + LDBU *${TEB}[$Te4[0]],$Te4[0] +|| MV $K[3],A0 +|| EXTU $K[3],EXT2,24,$Te4[1] + LDBU *${TEB}[$Te4[1]],$Te4[1] +|| EXTU A0,EXT3,24,A0 +|| EXTU $K[3],EXT0,24,$Te4[3] + .if .BIG_ENDIAN + LDBU *${TEA}[A0],$Te4[3] +|| LDBU *${TEB}[$Te4[3]],A0 + .else + LDBU *${TEA}[A0],A0 +|| LDBU *${TEB}[$Te4[3]],$Te4[3] + .endif + + STW $K[0],*$KPA++[2] +|| STW $K[1],*$KPB++[2] + STW $K[2],*$KPA++[2] +|| STW $K[3],*$KPB++[2] + + XOR A31,$K[0],$K[0] ; ^=rcon[i] + .if .BIG_ENDIAN + PACK2 $Te4[0],$Te4[1],$Te4[1] + PACK2 $Te4[3],A0,$Te4[3] +|| BDEC loop128?,B0 + PACKL4 $Te4[1],$Te4[3],$Te4[3] + .else + PACK2 $Te4[1],$Te4[0],$Te4[1] + PACK2 $Te4[3],A0,$Te4[3] +|| BDEC loop128?,B0 + PACKL4 $Te4[3],$Te4[1],$Te4[3] + .endif + XOR $Te4[3],$K[0],$Te4[0] ; K[0] + XOR $Te4[0],$K[1],$K[1] ; K[1] + MV $Te4[0],$K[0] +|| XOR $K[1],$K[2],$Te4[2] ; K[2] + XOR $Te4[2],$K[3],$K[3] ; K[3] +;;==================================================================== + BNOP RA + MV $Te4[2],$K[2] +|| STW $K[0],*$KPA++[2] +|| STW $K[1],*$KPB++[2] + STW $K[2],*$KPA++[2] +|| STW $K[3],*$KPB++[2] + MVK 10,B0 ; rounds + STW B0,*++${KPB}[15] + MVK 0,RET +;;==================================================================== +;;==================================================================== +key192?: + .if .BIG_ENDIAN + MV A9,$K[0] +|| MV A8,$K[1] +|| MV B9,$K[2] +|| MV B8,$K[3] + MV B17,$Te4[2] +|| MV B16,$K[5] + .else + MV A8,$K[0] +|| MV A9,$K[1] +|| MV B8,$K[2] +|| MV B9,$K[3] + MV B16,$Te4[2] +|| MV B17,$K[5] + .endif + + MVK 256,A0 +|| MVK 6,B0 + MV $TEA,$TEB +|| ADD $TEA,A0,A30 ; rcon +;;==================================================================== +loop192?: + LDW *A30++[1],A31 ; rcon[i] +|| MV $Te4[2],$K[4] +|| EXTU $K[5],EXT1,24,$Te4[0] + LDBU *${TEB}[$Te4[0]],$Te4[0] +|| MV $K[5],A0 +|| EXTU $K[5],EXT2,24,$Te4[1] + LDBU *${TEB}[$Te4[1]],$Te4[1] +|| EXTU A0,EXT3,24,A0 +|| EXTU $K[5],EXT0,24,$Te4[3] + .if .BIG_ENDIAN + LDBU *${TEA}[A0],$Te4[3] +|| LDBU *${TEB}[$Te4[3]],A0 + .else + LDBU *${TEA}[A0],A0 +|| LDBU *${TEB}[$Te4[3]],$Te4[3] + .endif + + STW $K[0],*$KPA++[2] +|| STW $K[1],*$KPB++[2] + STW $K[2],*$KPA++[2] +|| STW $K[3],*$KPB++[2] + STW $K[4],*$KPA++[2] +|| STW $K[5],*$KPB++[2] + + XOR A31,$K[0],$K[0] ; ^=rcon[i] + .if .BIG_ENDIAN + PACK2 $Te4[0],$Te4[1],$Te4[1] +|| PACK2 $Te4[3],A0,$Te4[3] + PACKL4 $Te4[1],$Te4[3],$Te4[3] + .else + PACK2 $Te4[1],$Te4[0],$Te4[1] +|| PACK2 $Te4[3],A0,$Te4[3] + PACKL4 $Te4[3],$Te4[1],$Te4[3] + .endif + BDEC loop192?,B0 +|| XOR $Te4[3],$K[0],$Te4[0] ; K[0] + XOR $Te4[0],$K[1],$K[1] ; K[1] + MV $Te4[0],$K[0] +|| XOR $K[1],$K[2],$Te4[2] ; K[2] + XOR $Te4[2],$K[3],$K[3] ; K[3] + MV $Te4[2],$K[2] +|| XOR $K[3],$K[4],$Te4[2] ; K[4] + XOR $Te4[2],$K[5],$K[5] ; K[5] +;;==================================================================== + BNOP RA + STW $K[0],*$KPA++[2] +|| STW $K[1],*$KPB++[2] + STW $K[2],*$KPA++[2] +|| STW $K[3],*$KPB++[2] + MVK 12,B0 ; rounds + STW B0,*++${KPB}[7] + MVK 0,RET +;;==================================================================== +;;==================================================================== +key256?: + .if .BIG_ENDIAN + MV A9,$K[0] +|| MV A8,$K[1] +|| MV B9,$K[2] +|| MV B8,$K[3] + MV B17,$K[4] +|| MV B16,$K[5] +|| MV B19,$Te4[2] +|| MV B18,$K[7] + .else + MV A8,$K[0] +|| MV A9,$K[1] +|| MV B8,$K[2] +|| MV B9,$K[3] + MV B16,$K[4] +|| MV B17,$K[5] +|| MV B18,$Te4[2] +|| MV B19,$K[7] + .endif + + MVK 256,A0 +|| MVK 6,B0 + MV $TEA,$TEB +|| ADD $TEA,A0,A30 ; rcon +;;==================================================================== +loop256?: + LDW *A30++[1],A31 ; rcon[i] +|| MV $Te4[2],$K[6] +|| EXTU $K[7],EXT1,24,$Te4[0] + LDBU *${TEB}[$Te4[0]],$Te4[0] +|| MV $K[7],A0 +|| EXTU $K[7],EXT2,24,$Te4[1] + LDBU *${TEB}[$Te4[1]],$Te4[1] +|| EXTU A0,EXT3,24,A0 +|| EXTU $K[7],EXT0,24,$Te4[3] + .if .BIG_ENDIAN + LDBU *${TEA}[A0],$Te4[3] +|| LDBU *${TEB}[$Te4[3]],A0 + .else + LDBU *${TEA}[A0],A0 +|| LDBU *${TEB}[$Te4[3]],$Te4[3] + .endif + + STW $K[0],*$KPA++[2] +|| STW $K[1],*$KPB++[2] + STW $K[2],*$KPA++[2] +|| STW $K[3],*$KPB++[2] + STW $K[4],*$KPA++[2] +|| STW $K[5],*$KPB++[2] + STW $K[6],*$KPA++[2] +|| STW $K[7],*$KPB++[2] +|| XOR A31,$K[0],$K[0] ; ^=rcon[i] + .if .BIG_ENDIAN + PACK2 $Te4[0],$Te4[1],$Te4[1] +|| PACK2 $Te4[3],A0,$Te4[3] + PACKL4 $Te4[1],$Te4[3],$Te4[3] +||[!B0] B done256? + .else + PACK2 $Te4[1],$Te4[0],$Te4[1] +|| PACK2 $Te4[3],A0,$Te4[3] + PACKL4 $Te4[3],$Te4[1],$Te4[3] +||[!B0] B done256? + .endif + XOR $Te4[3],$K[0],$Te4[0] ; K[0] + XOR $Te4[0],$K[1],$K[1] ; K[1] + MV $Te4[0],$K[0] +|| XOR $K[1],$K[2],$Te4[2] ; K[2] + XOR $Te4[2],$K[3],$K[3] ; K[3] + + MV $Te4[2],$K[2] +|| [B0] EXTU $K[3],EXT0,24,$Te4[0] +|| [B0] SUB B0,1,B0 + LDBU *${TEB}[$Te4[0]],$Te4[0] +|| MV $K[3],A0 +|| EXTU $K[3],EXT1,24,$Te4[1] + LDBU *${TEB}[$Te4[1]],$Te4[1] +|| EXTU A0,EXT2,24,A0 +|| EXTU $K[3],EXT3,24,$Te4[3] + + .if .BIG_ENDIAN + LDBU *${TEA}[A0],$Te4[3] +|| LDBU *${TEB}[$Te4[3]],A0 + NOP 3 + PACK2 $Te4[0],$Te4[1],$Te4[1] + PACK2 $Te4[3],A0,$Te4[3] +|| B loop256? + PACKL4 $Te4[1],$Te4[3],$Te4[3] + .else + LDBU *${TEA}[A0],A0 +|| LDBU *${TEB}[$Te4[3]],$Te4[3] + NOP 3 + PACK2 $Te4[1],$Te4[0],$Te4[1] + PACK2 $Te4[3],A0,$Te4[3] +|| B loop256? + PACKL4 $Te4[3],$Te4[1],$Te4[3] + .endif + + XOR $Te4[3],$K[4],$Te4[0] ; K[4] + XOR $Te4[0],$K[5],$K[5] ; K[5] + MV $Te4[0],$K[4] +|| XOR $K[5],$K[6],$Te4[2] ; K[6] + XOR $Te4[2],$K[7],$K[7] ; K[7] +;;==================================================================== +done256?: + BNOP RA + STW $K[0],*$KPA++[2] +|| STW $K[1],*$KPB++[2] + STW $K[2],*$KPA++[2] +|| STW $K[3],*$KPB++[2] + MVK 14,B0 ; rounds + STW B0,*--${KPB}[1] + MVK 0,RET + .endasmfunc + + .global _AES_set_decrypt_key +_AES_set_decrypt_key: + .asmfunc + B __set_encrypt_key ; guarantee local call + MV KEY,B30 ; B30 is not modified + MV RA, B31 ; B31 is not modified + ADDKPC ret?,RA,2 +ret?: ; B0 holds rounds or zero + [!B0] BNOP B31 ; return if zero + [B0] SHL B0,4,A0 ; offset to last round key + [B0] SHRU B0,1,B2 + [B0] SUB B2,2,B2 +|| [B0] MVK 0x0000001B,B3 ; AES polynomial + [B0] MVKH 0x07000000,B3 +|| [B0] MV B30,$KPA + [B0] ADD B30,A0,$KPB +|| [B0] MVK 16,A0 ; sizeof(round key) +;;==================================================================== +flip_loop?: + LDW *${KPA}[0],A16 +|| LDW *${KPB}[0],B16 + LDW *${KPA}[1],A17 +|| LDW *${KPB}[1],B17 + LDW *${KPA}[2],A18 +|| LDW *${KPB}[2],B18 + LDW *${KPA}[3],A19 +|| ADD $KPA,A0,$KPA +|| LDW *${KPB}[3],B19 +|| SUB $KPB,A0,$KPB +|| BDEC flip_loop?,B2 + NOP + STW B16,*${KPA}[-4] +|| STW A16,*${KPB}[4] + STW B17,*${KPA}[-3] +|| STW A17,*${KPB}[5] + STW B18,*${KPA}[-2] +|| STW A18,*${KPB}[6] + STW B19,*${KPA}[-1] +|| STW A19,*${KPB}[7] +;;==================================================================== + SUB B0,1,B0 ; skip last round +|| ADD B30,A0,$KPA ; skip first round +|| ADD B30,A0,$KPB +|| MVC GFPGFR,B30 ; save GFPGFR + LDW *${KPA}[0],$K[0] +|| LDW *${KPB}[1],$K[1] +|| MVC B3,GFPGFR + LDW *${KPA}[2],$K[2] +|| LDW *${KPB}[3],$K[3] + MVK 0x00000909,A24 +|| MVK 0x00000B0B,B24 + MVKH 0x09090000,A24 +|| MVKH 0x0B0B0000,B24 + SUB B0,1,B0 + + GMPY4 $K[0],A24,$Kx9[0] ; ·0x09 +|| GMPY4 $K[1],A24,$Kx9[1] +|| MVK 0x00000D0D,A25 +|| MVK 0x00000E0E,B25 + GMPY4 $K[2],A24,$Kx9[2] +|| GMPY4 $K[3],A24,$Kx9[3] +|| MVKH 0x0D0D0000,A25 +|| MVKH 0x0E0E0000,B25 + + GMPY4 $K[0],B24,$KxB[0] ; ·0x0B +|| GMPY4 $K[1],B24,$KxB[1] + GMPY4 $K[2],B24,$KxB[2] +|| GMPY4 $K[3],B24,$KxB[3] + +;;==================================================================== +invmix_loop?: + GMPY4 $K[0],A25,$KxD[0] ; ·0x0D +|| GMPY4 $K[1],A25,$KxD[1] +|| SWAP2 $Kx9[0],$Kx9[0] ; rotate by 16 +|| SWAP2 $Kx9[1],$Kx9[1] +|| MV $K[0],$s[0] ; this or DINT +|| MV $K[1],$s[1] +|| [B0] LDW *${KPA}[4],$K[0] +|| [B0] LDW *${KPB}[5],$K[1] + GMPY4 $K[2],A25,$KxD[2] +|| GMPY4 $K[3],A25,$KxD[3] +|| SWAP2 $Kx9[2],$Kx9[2] +|| SWAP2 $Kx9[3],$Kx9[3] +|| MV $K[2],$s[2] +|| MV $K[3],$s[3] +|| [B0] LDW *${KPA}[6],$K[2] +|| [B0] LDW *${KPB}[7],$K[3] + + GMPY4 $s[0],B25,$KxE[0] ; ·0x0E +|| GMPY4 $s[1],B25,$KxE[1] +|| XOR $Kx9[0],$KxB[0],$KxB[0] +|| XOR $Kx9[1],$KxB[1],$KxB[1] + GMPY4 $s[2],B25,$KxE[2] +|| GMPY4 $s[3],B25,$KxE[3] +|| XOR $Kx9[2],$KxB[2],$KxB[2] +|| XOR $Kx9[3],$KxB[3],$KxB[3] + + ROTL $KxB[0],TBL3,$KxB[0] +|| ROTL $KxB[1],TBL3,$KxB[1] +|| SWAP2 $KxD[0],$KxD[0] ; rotate by 16 +|| SWAP2 $KxD[1],$KxD[1] + ROTL $KxB[2],TBL3,$KxB[2] +|| ROTL $KxB[3],TBL3,$KxB[3] +|| SWAP2 $KxD[2],$KxD[2] +|| SWAP2 $KxD[3],$KxD[3] +|| [B0] B invmix_loop? + + XOR $KxE[0],$KxD[0],$KxE[0] +|| XOR $KxE[1],$KxD[1],$KxE[1] +|| [B0] GMPY4 $K[0],A24,$Kx9[0] ; ·0x09 +|| [B0] GMPY4 $K[1],A24,$Kx9[1] +|| ADDAW $KPA,4,$KPA + XOR $KxE[2],$KxD[2],$KxE[2] +|| XOR $KxE[3],$KxD[3],$KxE[3] +|| [B0] GMPY4 $K[2],A24,$Kx9[2] +|| [B0] GMPY4 $K[3],A24,$Kx9[3] +|| ADDAW $KPB,4,$KPB + + XOR $KxB[0],$KxE[0],$KxE[0] +|| XOR $KxB[1],$KxE[1],$KxE[1] +|| [B0] GMPY4 $K[0],B24,$KxB[0] ; ·0x0B +|| [B0] GMPY4 $K[1],B24,$KxB[1] + XOR $KxB[2],$KxE[2],$KxE[2] +|| XOR $KxB[3],$KxE[3],$KxE[3] +|| [B0] GMPY4 $K[2],B24,$KxB[2] +|| [B0] GMPY4 $K[3],B24,$KxB[3] +|| STW $KxE[0],*${KPA}[-4] +|| STW $KxE[1],*${KPB}[-3] + STW $KxE[2],*${KPA}[-2] +|| STW $KxE[3],*${KPB}[-1] +|| [B0] SUB B0,1,B0 +;;==================================================================== + BNOP B31,3 + MVC B30,GFPGFR ; restore GFPGFR(*) + MVK 0,RET + .endasmfunc +___ +# (*) Even though ABI doesn't specify GFPGFR as non-volatile, there +# are code samples out there that *assume* its default value. +} +{ +my ($inp,$out,$blocks,$key,$ivp)=("A4","B4","A6","B6","A8"); +$code.=<<___; + .global _AES_ctr32_encrypt +_AES_ctr32_encrypt: + .asmfunc + LDNDW *${ivp}[0],A31:A30 ; load counter value +|| MV $blocks,A2 ; reassign $blocks +|| MV RA,B27 ; reassign RA +|| MV $key,B26 ; reassign $key + LDNDW *${ivp}[1],B31:B30 +|| MVK 0,B2 ; don't let __encrypt load input +|| MVK 0,A1 ; and postpone writing output + .if .BIG_ENDIAN + NOP + .else + NOP 4 + SWAP2 B31,B31 ; keep least significant 32 bits + SWAP4 B31,B31 ; in host byte order + .endif +ctr32_loop?: + [A2] BNOP __encrypt +|| [A1] XOR A29,A9,A9 ; input^Ek(counter) +|| [A1] XOR A28,A8,A8 +|| [A2] LDNDW *INP++,A29:A28 ; load input + [!A2] BNOP B27 ; return +|| [A1] XOR B29,B9,B9 +|| [A1] XOR B28,B8,B8 +|| [A2] LDNDW *INP++,B29:B28 + .if .BIG_ENDIAN + [A1] STNDW A9:A8,*OUT++ ; save output +|| [A2] MV A31,A9 ; pass counter value to __encrypt +|| [A2] MV A30,A8 ; pass counter value to __encrypt + [A1] STNDW B9:B8,*OUT++ +|| [A2] DMV B31,B30,B9:B8 +|| [A2] ADD B30,1,B30 ; counter++ + .else + [A1] STNDW A9:A8,*OUT++ ; save output +|| [A2] MV A31,A9 +|| [A2] MV A30,A8 +|| [A2] SWAP2 B31,B0 +|| [A2] ADD B31,1,B31 ; counter++ + [A1] STNDW B9:B8,*OUT++ +|| [A2] MV B30,B8 +|| [A2] SWAP4 B0,B9 + .endif + [A2] ADDKPC ctr32_loop?,RA ; return to ctr32_loop? +|| [A2] MV B26,KEY ; pass $key +|| [A2] SUB A2,1,A2 ; $blocks-- +||[!A1] MVK 1,A1 + NOP + NOP + .endasmfunc +___ +} +# Tables are kept in endian-neutral manner +$code.=<<___; + .if __TI_EABI__ + .sect ".text:aes_asm.const" + .else + .sect ".const:aes_asm" + .endif + .align 128 +AES_Te: + .byte 0xc6,0x63,0x63,0xa5, 0xf8,0x7c,0x7c,0x84 + .byte 0xee,0x77,0x77,0x99, 0xf6,0x7b,0x7b,0x8d + .byte 0xff,0xf2,0xf2,0x0d, 0xd6,0x6b,0x6b,0xbd + .byte 0xde,0x6f,0x6f,0xb1, 0x91,0xc5,0xc5,0x54 + .byte 0x60,0x30,0x30,0x50, 0x02,0x01,0x01,0x03 + .byte 0xce,0x67,0x67,0xa9, 0x56,0x2b,0x2b,0x7d + .byte 0xe7,0xfe,0xfe,0x19, 0xb5,0xd7,0xd7,0x62 + .byte 0x4d,0xab,0xab,0xe6, 0xec,0x76,0x76,0x9a + .byte 0x8f,0xca,0xca,0x45, 0x1f,0x82,0x82,0x9d + .byte 0x89,0xc9,0xc9,0x40, 0xfa,0x7d,0x7d,0x87 + .byte 0xef,0xfa,0xfa,0x15, 0xb2,0x59,0x59,0xeb + .byte 0x8e,0x47,0x47,0xc9, 0xfb,0xf0,0xf0,0x0b + .byte 0x41,0xad,0xad,0xec, 0xb3,0xd4,0xd4,0x67 + .byte 0x5f,0xa2,0xa2,0xfd, 0x45,0xaf,0xaf,0xea + .byte 0x23,0x9c,0x9c,0xbf, 0x53,0xa4,0xa4,0xf7 + .byte 0xe4,0x72,0x72,0x96, 0x9b,0xc0,0xc0,0x5b + .byte 0x75,0xb7,0xb7,0xc2, 0xe1,0xfd,0xfd,0x1c + .byte 0x3d,0x93,0x93,0xae, 0x4c,0x26,0x26,0x6a + .byte 0x6c,0x36,0x36,0x5a, 0x7e,0x3f,0x3f,0x41 + .byte 0xf5,0xf7,0xf7,0x02, 0x83,0xcc,0xcc,0x4f + .byte 0x68,0x34,0x34,0x5c, 0x51,0xa5,0xa5,0xf4 + .byte 0xd1,0xe5,0xe5,0x34, 0xf9,0xf1,0xf1,0x08 + .byte 0xe2,0x71,0x71,0x93, 0xab,0xd8,0xd8,0x73 + .byte 0x62,0x31,0x31,0x53, 0x2a,0x15,0x15,0x3f + .byte 0x08,0x04,0x04,0x0c, 0x95,0xc7,0xc7,0x52 + .byte 0x46,0x23,0x23,0x65, 0x9d,0xc3,0xc3,0x5e + .byte 0x30,0x18,0x18,0x28, 0x37,0x96,0x96,0xa1 + .byte 0x0a,0x05,0x05,0x0f, 0x2f,0x9a,0x9a,0xb5 + .byte 0x0e,0x07,0x07,0x09, 0x24,0x12,0x12,0x36 + .byte 0x1b,0x80,0x80,0x9b, 0xdf,0xe2,0xe2,0x3d + .byte 0xcd,0xeb,0xeb,0x26, 0x4e,0x27,0x27,0x69 |