Added HMAC tests.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

tests/pico-hsm/test_060_mac.py

@@ -0,0 +1,46 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import os
+from cryptography.hazmat.primitives import hashes, hmac
+from utils import Algorithm, DOPrefixes
+from const import DEFAULT_DKEK_SHARES, DEFAULT_DKEK
+
+MESSAGE = b'a secret message'
+
+def test_prepare_aes(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+@pytest.mark.parametrize(
+    "algo", [hashes.SHA1, hashes.SHA224, hashes.SHA256, hashes.SHA384, hashes.SHA512]
+)
+def test_mac_hmac(device, size, algo):
+    pkey = os.urandom(size // 8)
+    keyid = device.import_key(pkey)
+    resA = device.hmac(algo, keyid, MESSAGE)
+    h = hmac.HMAC(pkey, algo())
+    h.update(MESSAGE)
+    resB = h.finalize()
+    assert(bytes(resA) == resB)