upload android base code part6

android/system/keymaster/ec_key.h

@@ -0,0 +1,51 @@
+/*
+ * 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_EC_KEY_H_
+#define SYSTEM_KEYMASTER_EC_KEY_H_
+
+#include <openssl/ec.h>
+
+#include "asymmetric_key.h"
+#include "openssl_utils.h"
+
+namespace keymaster {
+
+class EcdsaOperationFactory;
+
+class EcKey : public AsymmetricKey {
+  public:
+    EcKey(const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced,
+          keymaster_error_t* error)
+        : AsymmetricKey(hw_enforced, sw_enforced, error) {}
+
+    bool InternalToEvp(EVP_PKEY* pkey) const override;
+    bool EvpToInternal(const EVP_PKEY* pkey) override;
+
+    EC_KEY* key() const { return ec_key_.get(); }
+
+  protected:
+    EcKey(EC_KEY* ec_key, const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced,
+          keymaster_error_t* error)
+        : AsymmetricKey(hw_enforced, sw_enforced, error), ec_key_(ec_key) {}
+
+  private:
+    UniquePtr<EC_KEY, EC_KEY_Delete> ec_key_;
+};
+
+}  // namespace keymaster
+
+#endif  // SYSTEM_KEYMASTER_EC_KEY_H_