upload android base code part6

android/system/keymaster/ec_keymaster0_key.h

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+/*
+ * Copyright 2015 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_KEYMASTER0_KEY_H_
+#define SYSTEM_KEYMASTER_EC_KEYMASTER0_KEY_H_
+
+#include <openssl/ec_key.h>
+
+#include <keymaster/ec_key_factory.h>
+
+#include "ec_key.h"
+
+namespace keymaster {
+
+class Keymaster0Engine;
+class SoftKeymasterContext;
+
+/**
+ * An EcdsaKeyFactory which can delegate key generation, importing and loading operations to a
+ * keymaster0-backed OpenSSL engine.
+ */
+class EcdsaKeymaster0KeyFactory : public EcKeyFactory {
+    typedef EcKeyFactory super;
+
+  public:
+    EcdsaKeymaster0KeyFactory(const SoftKeymasterContext* context, const Keymaster0Engine* engine);
+
+    keymaster_error_t GenerateKey(const AuthorizationSet& key_description,
+                                  KeymasterKeyBlob* key_blob, AuthorizationSet* hw_enforced,
+                                  AuthorizationSet* sw_enforced) const override;
+
+    keymaster_error_t ImportKey(const AuthorizationSet& key_description,
+                                keymaster_key_format_t input_key_material_format,
+                                const KeymasterKeyBlob& input_key_material,
+                                KeymasterKeyBlob* output_key_blob, AuthorizationSet* hw_enforced,
+                                AuthorizationSet* sw_enforced) const override;
+
+    keymaster_error_t LoadKey(const KeymasterKeyBlob& key_material,
+                              const AuthorizationSet& additional_params,
+                              const AuthorizationSet& hw_enforced,
+                              const AuthorizationSet& sw_enforced,
+                              UniquePtr<Key>* key) const override;
+
+  private:
+    const Keymaster0Engine* engine_;
+};
+
+class EcKeymaster0Key : public EcKey {
+  public:
+    EcKeymaster0Key(EC_KEY* ec_key, const AuthorizationSet& hw_enforced,
+                    const AuthorizationSet& sw_enforced, keymaster_error_t* error)
+        : EcKey(ec_key, hw_enforced, sw_enforced, error) {}
+};
+
+}  // namespace keymaster
+
+#endif  // SYSTEM_KEYMASTER_EC_KEYMASTER0_KEY_H_