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Updated SM3性能优化 (markdown)

Sun Yimin 2023-09-18 15:24:49 +08:00
parent 2a23f12e38
commit 12b312a4af
1 changed files with 9 additions and 10 deletions
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SM3性能优化.md

@ -184,7 +184,7 @@ SM3的第一版，比SHA256复杂，不知道有没有继续优化的空间。
VPSHUFD $0x4E, XTMP3, XDWORD0; \ // XDWORD0 = {W[3], W[2], W[1], W[0]}
```
第三版（去除shuff_DC00<>(SB)，先扩展一个word）：
第三版（去除shuff_00BA<>(SB)，shuff_DC00<>(SB)，先扩展一个word）：
```asm
// Wj ← P1(Wj−16 ⊕ Wj−9 ⊕ (Wj−3 ≪ 15)) ⊕ (Wj−13 ≪ 7) ⊕ Wj−6
// Transpose data into high/low parts
@ -204,20 +204,19 @@ SM3的第一版，比SHA256复杂，不知道有没有继续优化的空间。
VPALIGNR $12, XDWORD1, XDWORD2, XTMP1; \ // XTMP1 = W[-9] = {w10,w9,w8,w7}
VPXOR XDWORD0, XTMP1, XTMP1; \ // XTMP1 = W[-9] XOR W[-16]
VPSHUFD $0xA5, XDWORD3, XTMP2; \ // XTMP2 = W[-3] {BBAA} {w14,w14,w13,w13}
VPSLLQ $15, XTMP2, XTMP2; \ // XTMP2 = W[-3] rol 15 {BxAx}
VPSHUFB shuff_00BA<>(SB), XTMP2, XTMP2;\ // XTMP2 = W[-3] rol 15 {00BA}
VPXOR XTMP1, XTMP2, XTMP2; \ // XTMP2 = W[-9] XOR W[-16] XOR (W[-3] rol 15) {xxBA}
VPSRLQ $17, XTMP2, XTMP2; \ // XTMP2 = W[-3] ror 17 {xBxA}
VPXOR XTMP1, XTMP2, XTMP2; \ // XTMP2 = W[-9] XOR W[-16] XOR (W[-3] rol 15) {xxxA}
// P1
VPSLLD $15, XTMP2, XTMP3; \
VPSRLD $(32-15), XTMP2, XTMP4; \
VPOR XTMP3, XTMP4, XTMP4; \ // XTMP4 = XTMP2 rol 15 {xxBA}
VPSHUFB r08_mask<>(SB), XTMP4, XTMP3; \ // XTMP3 = XTMP2 rol 23 {xxBA}
VPXOR XTMP2, XTMP4, XTMP4; \ // XTMP4 = XTMP2 XOR (XTMP2 rol 15 {xxBA})
VPXOR XTMP4, XTMP3, XTMP4; \ // XTMP4 = XTMP2 XOR (XTMP2 rol 15 {xxBA}) XOR (XTMP2 rol 23 {xxBA})
VPOR XTMP3, XTMP4, XTMP4; \ // XTMP4 = XTMP2 rol 15 {xxxA}
VPSHUFB r08_mask<>(SB), XTMP4, XTMP3; \ // XTMP3 = XTMP2 rol 23 {xxxA}
VPXOR XTMP2, XTMP4, XTMP4; \ // XTMP4 = XTMP2 XOR (XTMP2 rol 15 {xxxA})
VPXOR XTMP4, XTMP3, XTMP4; \ // XTMP4 = XTMP2 XOR (XTMP2 rol 15 {xxxA}) XOR (XTMP2 rol 23 {xxxA})
// First 2 words message schedule result
VPXOR XTMP4, XTMP0, XTMP2; \ // XTMP2 = {..., ..., W[1], W[0]}
// First 1 words message schedule result
VPXOR XTMP4, XTMP0, XTMP2; \ // XTMP2 = {..., ..., ..., W[0]}
// Prepare P1 parameters
VPALIGNR $4, XDWORD3, XTMP2, XTMP3; \ // XTMP3 = {W[0], w15, w14, w13}