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Updated SM4性能优化 (markdown)

Sun Yimin 2021-03-22 17:12:29 +08:00
parent 96a9696ad0
commit f146df6f57
1 changed files with 34 additions and 0 deletions
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SM4性能优化.md

@ -165,3 +165,37 @@ Golang没提供这两种模式的优化接口，可能这两种模式不怎么
BenchmarkSM4GCMSeal8K-6 36162 33197 ns/op 246.77 MB/s 0 B/op 0 allocs/op
BenchmarkAESGCMOpen8K-6 944479 1325 ns/op 6183.50 MB/s 0 B/op 0 allocs/op
BenchmarkSM4GCMOpen8K-6 36162 33197 ns/op 246.77 MB/s 0 B/op 0 allocs/op
AES 128的加密代码(amd64), 没有32轮loop，这种性能差别也不奇怪
// func encryptBlockAsm(nr int, xk *uint32, dst, src *byte)
TEXT ·encryptBlockAsm(SB),NOSPLIT,$0
MOVQ xk+8(FP), AX
MOVQ dst+16(FP), DX
MOVQ src+24(FP), BX
MOVUPS 0(AX), X1
MOVUPS 0(BX), X0
ADDQ $16, AX
PXOR X1, X0
MOVUPS 0(AX), X1
AESENC X1, X0
MOVUPS 16(AX), X1
AESENC X1, X0
MOVUPS 32(AX), X1
AESENC X1, X0
MOVUPS 48(AX), X1
AESENC X1, X0
MOVUPS 64(AX), X1
AESENC X1, X0
MOVUPS 80(AX), X1
AESENC X1, X0
MOVUPS 96(AX), X1
AESENC X1, X0
MOVUPS 112(AX), X1
AESENC X1, X0
MOVUPS 128(AX), X1
AESENC X1, X0
MOVUPS 144(AX), X1
AESENCLAST X1, X0
MOVUPS X0, 0(DX)
RET