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Updated SM3性能优化 (markdown)

Sun Yimin 2023-09-18 15:18:17 +08:00
parent dbce213572
commit 2a23f12e38
1 changed files with 8 additions and 12 deletions
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SM3性能优化.md

@ -268,23 +268,19 @@ VEOR XTMP4.B16, XTMP0.B16, XTMP2.B16; // XTMP2 = {..., ..., W[1], W[0]}
// Prepare P1 parameters
VEXT $4, XTMP2.B16, XWORD3.B16, XTMP3.B16; // XTMP3 = W[-3] {W[0],w15, w14, w13}, Vm = XTMP2, Vn = XWORD3
VSHL $15, XTMP3.S4, XTMP4.S4;
VSRI $17, XTMP3.S4, XTMP4.S4; // XTMP4 = W[-3] rol 15 {DCxx}
VEOR XTMP1.B16, XTMP4.B16, XTMP4.B16; // XTMP4 = W[-9] XOR W[-16] XOR (W[-3] rol 15) {DCxx}
VSRI $17, XTMP3.S4, XTMP4.S4; // XTMP4 = W[-3] rol 15 {DCBA}
VEOR XTMP1.B16, XTMP4.B16, XTMP4.B16; // XTMP4 = W[-9] XOR W[-16] XOR (W[-3] rol 15) {DCBA}
// P1
VSHL $15, XTMP4.S4, XTMP3.S4;
VSRI $17, XTMP4.S4, XTMP3.S4; // XTMP3 = XTMP4 rol 15 {DCxx}
VSRI $17, XTMP4.S4, XTMP3.S4; // XTMP3 = XTMP4 rol 15 {DCBA}
VSHL $8, XTMP3.S4, XTMP1.S4;
VSRI $24, XTMP3.S4, XTMP1.S4; // XTMP1 = XTMP4 rol 23 {DCxx}
VEOR XTMP3.B16, XTMP4.B16, XTMP3.B16; // XTMP3 = XTMP4 XOR (XTMP4 rol 15 {DCxx})
VEOR XTMP3.B16, XTMP1.B16, XTMP1.B16; // XTMP1 = XTMP4 XOR (XTMP4 rol 15 {DCxx}) XOR (XTMP4 rol 23 {DCxx})
VSRI $24, XTMP3.S4, XTMP1.S4; // XTMP1 = XTMP4 rol 23 {DCBA}
VEOR XTMP3.B16, XTMP4.B16, XTMP3.B16; // XTMP3 = XTMP4 XOR (XTMP4 rol 15 {DCBA})
VEOR XTMP3.B16, XTMP1.B16, XTMP1.B16; // XTMP1 = XTMP4 XOR (XTMP4 rol 15 {DCBA}) XOR (XTMP4 rol 23 {DCBA})
// Last 2 words message schedule result
VEOR XTMP1.B16, XTMP0.B16, XTMP1.B16; // XTMP1 = {W[3], W[2], ..., ...}
// 拼接结果
VEXT $8, XTMP2.B16, XTMP1.B16, XTMP3.B16; // XTMP3 = {W[1], W[0], W[3], W[2]}, Vm = XTMP2, Vn = XTMP1
VEXT $8, XTMP3.B16, XTMP3.B16, XWORD0.B16; // XWORD0 = {W[3], W[2], W[1], W[0]}
// 4 words message schedule result
VEOR XTMP1.B16, XTMP0.B16, XTMP1.B16; // XTMP1 = {W[3], W[2], W[1], W[0]}
```
由于要算**52**个DWORDs，所以