Add HMAC-SHA256 support.
Change-Id: I64c7bdf77388e3cb491b702c52c6746d32f317b0
diff --git a/hmac_key.h b/hmac_key.h
new file mode 100644
index 0000000..d60c848
--- /dev/null
+++ b/hmac_key.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SYSTEM_KEYMASTER_HMAC_KEY_H_
+#define SYSTEM_KEYMASTER_HMAC_KEY_H_
+
+#include "symmetric_key.h"
+
+namespace keymaster {
+
+class HmacKey : public SymmetricKey {
+ public:
+ HmacKey(const AuthorizationSet& auths, const Logger& logger) : SymmetricKey(auths, logger) {}
+ HmacKey(const UnencryptedKeyBlob& blob, const Logger& logger, keymaster_error_t* error)
+ : SymmetricKey(blob, logger, error) {}
+
+ virtual Operation* CreateOperation(keymaster_purpose_t purpose, keymaster_error_t* error);
+};
+
+} // namespace keymaster
+
+#endif // SYSTEM_KEYMASTER_HMAC_KEY_H_