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sm4: ppc64x, missing fk

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Sun Yimin 2024-09-11 16:09:48 +08:00 committed by GitHub
parent 40486134f8
commit 69d3481edc
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GPG Key ID: B5690EEEBB952194
1 changed files with 14 additions and 17 deletions
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31
sm4/asm_ppc64x.s
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@ -173,26 +173,23 @@ TEXT ·expandKeyAsm(SB),NOSPLIT,$0
ADD $112, R6
// load fk
MOVD $·fk+0(SB), R7
LXVW4X (R7), V4
// load key
PPC64X_LXVW4X(R3, R0, V0)
// xor key with fk
VXOR V0, V4, V0
VSLDOI $4, V0, V0, V1
VSLDOI $4, V1, V1, V2
VSLDOI $4, V2, V2, V3
// prepare counter
MOVD $8, R7
MOVD R7, CTR
// load key
PPC64X_LXVW4X(R3, R0, V0)
VSLDOI $4, V0, V0, V1
VSLDOI $4, V1, V0, V2
VSLDOI $4, V2, V0, V3
STXVW4X V1, (R5)
STXVW4X V3, (R6)
LXVW4X (R4), V4
VSLDOI $4, V4, V4, V4
ADD $16, R5
STXVW4X V4, (R5)
VSLDOI $4, V4, V4, V4
ADD $-16, R6
STXVW4X V4, (R6)
/*
ksLoop:
LXVW4X (R4), V4
SM4_EXPANDKEY_ROUND(V4, V7, V8, V9, V0, V1, V2, V3, V5)
@ -210,7 +207,7 @@ ksLoop:
ADD $16, R4
ADD $-16, R6
BDNZ ksLoop
*/
RET
// func encryptBlocksAsm(xk *uint32, dst, src []byte, inst int)