feat: HMAC support in Crypto APIs

2 files changed, 123 insertions, 0 deletions

diff --git a/modules/mbedtls/tests/test_crypto_mbedtls.cpp b/modules/mbedtls/tests/test_crypto_mbedtls.cpp
new file mode 100644
index 0000000000..c5a27aa794
--- /dev/null
+++ b/modules/mbedtls/tests/test_crypto_mbedtls.cpp
@@ -0,0 +1,62 @@
+/*************************************************************************/
+/*  test_crypto_mbedtls.cpp                                              */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "modules/mbedtls/tests/test_crypto_mbedtls.h"
+
+#include "modules/mbedtls/crypto_mbedtls.h"
+#include "tests/test_macros.h"
+
+namespace TestCryptoMbedTLS {
+
+void hmac_digest_test(HashingContext::HashType ht, String expected_hex) {
+	CryptoMbedTLS crypto;
+	PackedByteArray key = String("supersecretkey").to_utf8_buffer();
+	PackedByteArray msg = String("Return of the MAC!").to_utf8_buffer();
+	PackedByteArray digest = crypto.hmac_digest(ht, key, msg);
+	String hex = String::hex_encode_buffer(digest.ptr(), digest.size());
+	CHECK(hex == expected_hex);
+}
+
+void hmac_context_digest_test(HashingContext::HashType ht, String expected_hex) {
+	HMACContextMbedTLS ctx;
+	PackedByteArray key = String("supersecretkey").to_utf8_buffer();
+	PackedByteArray msg1 = String("Return of ").to_utf8_buffer();
+	PackedByteArray msg2 = String("the MAC!").to_utf8_buffer();
+	Error err = ctx.start(ht, key);
+	CHECK(err == OK);
+	err = ctx.update(msg1);
+	CHECK(err == OK);
+	err = ctx.update(msg2);
+	CHECK(err == OK);
+	PackedByteArray digest = ctx.finish();
+	String hex = String::hex_encode_buffer(digest.ptr(), digest.size());
+	CHECK(hex == expected_hex);
+}
+} // namespace TestCryptoMbedTLS
diff --git a/modules/mbedtls/tests/test_crypto_mbedtls.h b/modules/mbedtls/tests/test_crypto_mbedtls.h
new file mode 100644
index 0000000000..7b1e062239
--- /dev/null
+++ b/modules/mbedtls/tests/test_crypto_mbedtls.h
@@ -0,0 +1,61 @@
+/*************************************************************************/
+/*  test_crypto_mbedtls.h                                                */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef TEST_CRYPTO_MBEDTLS_H
+#define TEST_CRYPTO_MBEDTLS_H
+
+#include "core/crypto/hashing_context.h"
+
+#include "tests/test_macros.h"
+
+namespace TestCryptoMbedTLS {
+
+void hmac_digest_test(HashingContext::HashType ht, String expected_hex);
+
+TEST_CASE("[CryptoMbedTLS] HMAC digest") {
+	// SHA-256
+	hmac_digest_test(HashingContext::HashType::HASH_SHA256, "fe442023f8a7d36a810e1e7cd8a8e2816457f350a008fbf638296afa12085e59");
+
+	// SHA-1
+	hmac_digest_test(HashingContext::HashType::HASH_SHA1, "a0ac4cd68a2f4812c355983d94e8d025afe7dddf");
+}
+
+void hmac_context_digest_test(HashingContext::HashType ht, String expected_hex);
+
+TEST_CASE("[HMACContext] HMAC digest") {
+	// SHA-256
+	hmac_context_digest_test(HashingContext::HashType::HASH_SHA256, "fe442023f8a7d36a810e1e7cd8a8e2816457f350a008fbf638296afa12085e59");
+
+	// SHA-1
+	hmac_context_digest_test(HashingContext::HashType::HASH_SHA1, "a0ac4cd68a2f4812c355983d94e8d025afe7dddf");
+}
+} // namespace TestCryptoMbedTLS
+
+#endif // TEST_CRYPTO_MBEDTLS_H