Function hmac_sha256_long_key

rust/stringzilla.rs:3924–3935

()

    #[test]
    fn hmac_sha256_long_key() {
        // Test with key longer than block size (> 64 bytes)
        let key = b"this is a very long key that exceeds the SHA256 block size of 64 bytes for testing purposes";
        let message = b"message";
        let mac = sz::hmac_sha256(key, message);
        // Expected value computed with Python: hmac.new(key, message, hashlib.sha256).digest()
        let expected = [
            0xd1, 0x3f, 0xdb, 0x7b, 0xe0, 0x9a, 0x9e, 0x07, 0x04, 0xc6, 0x5b, 0xd7, 0x85, 0xa6, 0x33, 0xbb, 0xc0, 0xee,
            0x2b, 0x99, 0xef, 0xd6, 0x32, 0x2c, 0xa9, 0x4c, 0xd3, 0x2c, 0x1e, 0x45, 0x09, 0xfd,
        ];
        assert_eq!(mac, expected);
    }

    #[test]
    #[should_panic]