blake2b: final 4 bytes not written when expecting 160-bit output

[lithdew]

The final 4 bytes appear to be missing when using Blake2b(160).

const std = @import("std");
const Hash = std.crypto.hash.blake2.Blake2b(160);

pub fn main() void {
 var digest: [Hash.digest_length]u8 = undefined;
 Hash.hash("hello", &digest, .{});
 std.debug.print("{x}", .{digest});
}

Expected: b5531c7037f06c9f2947132a6a77202c308e8939
Actual: b5531c7037f06c9f2947132a6a77202c00000000

[LemonBoy]

TFW when the API is flexible but the implementation isn't.

[jedisct1]

The mix of bits and bytes is very confusing :(

[jedisct1]

On it.