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ghash: handle the .hi_lo case when no CLMUL acceleration is present, too

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Frank Denis 2022-11-17 23:54:21 +01:00
parent 3051e279a5
commit 4dd061a7ac
1 changed files with 1 additions and 1 deletions
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lib/std/crypto/ghash.zig
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@ -146,7 +146,7 @@ pub const Ghash = struct {
// Software carryless multiplication of two 64-bit integers.
fn clmulSoft(x_: u128, y_: u128, comptime half: Selector) u128 {
const x = @truncate(u64, if (half == .hi) x_ >> 64 else x_);
const x = @truncate(u64, if (half == .hi or half == .hi_lo) x_ >> 64 else x_);
const y = @truncate(u64, if (half == .hi) y_ >> 64 else y_);
const x0 = x & 0x1111111111111110;