Refactor: Separate asymmetric key types.
Change-Id: I3368798a8ecea319bb0bfcd6ff24e9a7b6287c80
diff --git a/dsa_key.h b/dsa_key.h
new file mode 100644
index 0000000..d75fd85
--- /dev/null
+++ b/dsa_key.h
@@ -0,0 +1,54 @@
+/*
+ * 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_DSA_KEY_H_
+#define SYSTEM_KEYMASTER_DSA_KEY_H_
+
+#include <openssl/dsa.h>
+
+#include "asymmetric_key.h"
+
+namespace keymaster {
+
+class DsaKey : public AsymmetricKey {
+ public:
+ static DsaKey* GenerateKey(const AuthorizationSet& key_description, const Logger& logger,
+ keymaster_error_t* error);
+ static DsaKey* ImportKey(const AuthorizationSet& key_description, EVP_PKEY* pkey,
+ const Logger& logger, keymaster_error_t* error);
+ DsaKey(const UnencryptedKeyBlob& blob, const Logger& logger, keymaster_error_t* error);
+
+ virtual Operation* CreateOperation(keymaster_purpose_t purpose, keymaster_digest_t digest,
+ keymaster_padding_t padding, keymaster_error_t* error);
+
+ private:
+ DsaKey(DSA* dsa_key, const AuthorizationSet auths, const Logger& logger)
+ : AsymmetricKey(auths, logger), dsa_key_(dsa_key) {}
+
+ virtual int evp_key_type() { return EVP_PKEY_DSA; }
+ virtual bool InternalToEvp(EVP_PKEY* pkey) const;
+ virtual bool EvpToInternal(const EVP_PKEY* pkey);
+
+ struct DSA_Delete {
+ void operator()(DSA* p) { DSA_free(p); }
+ };
+
+ UniquePtr<DSA, DSA_Delete> dsa_key_;
+};
+
+} // namespace keymaster
+
+#endif // SYSTEM_KEYMASTER_DSA_KEY_H_