zig

commit cdd8e82f0ac7ace0a03653960fbf9ba3daa69dc4 (tree)
parent 4c336705b9c27a7f7152ef51116121d6bf209ac4
Author: Bruno Franca dos Reis <261623+bfreis@users.noreply.github.com>
Date:   Mon, 28 Oct 2024 07:54:02 -0700

closes #21824 (#21832)


Diffstat:
M
lib/std/crypto/hkdf.zig
 | 
9
+++++++++
M
lib/std/crypto/sha3.zig
 | 
2
+-

2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/lib/std/crypto/hkdf.zig b/lib/std/crypto/hkdf.zig
@@ -88,3 +88,12 @@ test "Hkdf" {
     hkdf.final(&prk2);
     try htest.assertEqual("077709362c2e32df0ddc3f0dc47bba6390b6c73bb50f9c3122ec844ad7c2b3e5", &prk2);
 }
+
+test "Hkdf Sha3-512" {
+    const sha3_512 = std.crypto.hash.sha3.Sha3_512;
+    const hmac_sha3_512 = hmac.Hmac(sha3_512);
+    const hkdf = Hkdf(hmac_sha3_512);
+    const prk = hkdf.extract("", "");
+    var out = [1]u8{0};
+    hkdf.expand(out[0..], "", prk);
+}
diff --git a/lib/std/crypto/sha3.zig b/lib/std/crypto/sha3.zig
@@ -52,7 +52,7 @@ pub fn Keccak(comptime f: u11, comptime output_bits: u11, comptime default_delim
         st: State,
 
         /// The output length, in bytes.
-        pub const digest_length = output_bits / 8;
+        pub const digest_length = std.math.divCeil(comptime_int, output_bits, 8) catch unreachable;
         /// The block length, or rate, in bytes.
         pub const block_length = State.rate;
         /// The delimiter can be overwritten in the options.