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| author | Frank Denis <github@pureftpd.org> | 2020-08-21 20:33:16 +0200 |
|---|---|---|
| committer | Frank Denis <github@pureftpd.org> | 2020-08-21 20:33:16 +0200 |
| commit | 0fe6677736fae205543c6f1c57ea864049bade73 (patch) | |
| tree | 21d1cb121c42491632cbe8a9427cefbf18df2b8f /lib/std/crypto/poly1305.zig | |
| parent | 2fc2ebd920a83e737ebb5f8b3499fd0e48d94043 (diff) | |
| download | zig-0fe6677736fae205543c6f1c57ea864049bade73.tar.gz zig-0fe6677736fae205543c6f1c57ea864049bade73.zip | |
No need to keep a 128-bit carry around
Diffstat (limited to 'lib/std/crypto/poly1305.zig')
| -rw-r--r-- | lib/std/crypto/poly1305.zig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/std/crypto/poly1305.zig b/lib/std/crypto/poly1305.zig index b401939c5c..c0b462c60e 100644 --- a/lib/std/crypto/poly1305.zig +++ b/lib/std/crypto/poly1305.zig @@ -64,7 +64,7 @@ pub const Poly1305 = struct { var d2 = @as(u128, h0) * r2 + @as(u128, h1) * r1 + @as(u128, h2) * r0; // partial reduction - var carry = d0 >> 44; + var carry = @intCast(u64, d0 >> 44); h0 = @truncate(u44, d0); d1 += carry; carry = @intCast(u64, d1 >> 44); @@ -75,7 +75,7 @@ pub const Poly1305 = struct { h0 += @truncate(u64, carry) * 5; carry = h0 >> 44; h0 = @truncate(u44, h0); - h1 += @truncate(u64, carry); + h1 += carry; } st.h = [_]u64{ h0, h1, h2 }; } |