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Updated 无进位乘法和GHASH (markdown)

Sun Yimin 2023-08-21 14:48:47 +08:00
parent 12d43bee8a
commit 28eed63f34
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无进位乘法和GHASH.md

@ -40,15 +40,15 @@ $[A_1 : A_0] \cdot [B_1 : B_0] = [C_1:C_0 \oplus C_1 \oplus D_1 \oplus E_1 : D_1
* $[D_1:D_0] = [B_0 \oplus C_1 : B_1 \oplus C_0]$ * $[D_1:D_0] = [B_0 \oplus C_1 : B_1 \oplus C_0]$
* Output: $[D_1 \oplus X_3 : D_0 \oplus X_2]$ * Output: $[D_1 \oplus X_3 : D_0 \oplus X_2]$
```asm ```asm
; Input is in T1:T7 ; Input is in T1:T0
vmodqa T3, [W] vmodqa T3, [W] ; poly
vpclmulqda T2, T3, T7, 0x01 vpclmulqda T2, T3, T0, 0x01
vpshufd T4, T7, 78 vpshufd T4, T0, 78
vpxor T4, T4, T2 vpxor T4, T4, T2
vpclmulqda T2, T3, T4, 0x01 vpclmulqda T2, T3, T4, 0x01
vpshufd T4, T4, 78 vpshufd T4, T4, 78
vpxor T4, T4, T2 vpxor T4, T4, T2
vpxor T1, T4 ; result in T1 vpxor T1, T1, T4 ; result in T1
``` ```
# 参考 # 参考