From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 1 Aug 2021 00:25:33 +0000 (+0100)
Subject: own hmac, tests, pass, note origin
X-Git-Tag: hippotat/1.0.0~405
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=cc75891dbcb7ba1489c3550a7ed6fe5c2c308424;p=hippotat.git

own hmac, tests, pass, note origin

Copyrightwise this is fine because IETF licences code in RFCs
appropriately.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/src/utils.rs b/src/utils.rs
index 868dd11..8a8d034 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -51,6 +51,7 @@ pub fn token_hmac(key: &[u8], message: &[u8]) -> [u8; HMAC_L] {
 
 #[test]
 fn hmac_test_vectors(){
+  // C&P from RFC 4231
   let vectors = r#"
    Key =          0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b
                   0b0b0b0b                          (20 bytes)