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| author | Frank Denis <github@pureftpd.org> | 2021-01-02 20:08:27 +0100 |
|---|---|---|
| committer | Andrew Kelley <andrew@ziglang.org> | 2021-01-02 22:32:57 -0800 |
| commit | 5aac2fc28111e59a2a05a4fae42b6e19d4e0b7ca (patch) | |
| tree | 39f754326e98c10e9c87108fbcf2eae1ac996fc4 /lib/std | |
| parent | 683814190bde2340dbecf8e48ae1629900f51306 (diff) | |
| download | zig-5aac2fc28111e59a2a05a4fae42b6e19d4e0b7ca.tar.gz zig-5aac2fc28111e59a2a05a4fae42b6e19d4e0b7ca.zip | |
std/crypto: properly support arbitrary output sizes
Fixes #7657
Diffstat (limited to 'lib/std')
| -rw-r--r-- | lib/std/crypto/blake2.zig | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/lib/std/crypto/blake2.zig b/lib/std/crypto/blake2.zig index bcb925c12d..91fd23208a 100644 --- a/lib/std/crypto/blake2.zig +++ b/lib/std/crypto/blake2.zig @@ -137,12 +137,8 @@ pub fn Blake2s(comptime out_bits: usize) type { mem.set(u8, d.buf[d.buf_len..], 0); d.t += d.buf_len; d.round(d.buf[0..], true); - - const rr = d.h[0 .. digest_length / 4]; - - for (rr) |s, j| { - mem.writeIntSliceLittle(u32, out[4 * j ..], s); - } + for (d.h) |*x| x.* = mem.nativeToLittle(u32, x.*); + mem.copy(u8, out[0..], @ptrCast(*[digest_length]u8, &d.h)); } fn round(d: *Self, b: *const [64]u8, last: bool) void { @@ -480,12 +476,8 @@ pub fn Blake2b(comptime out_bits: usize) type { mem.set(u8, d.buf[d.buf_len..], 0); d.t += d.buf_len; d.round(d.buf[0..], true); - - const rr = d.h[0 .. digest_length / 8]; - - for (rr) |s, j| { - mem.writeIntSliceLittle(u64, out[8 * j ..], s); - } + for (d.h) |*x| x.* = mem.nativeToLittle(u64, x.*); + mem.copy(u8, out[0..], @ptrCast(*[digest_length]u8, &d.h)); } fn round(d: *Self, b: *const [128]u8, last: bool) void { |