upload android base code part6

android/system/tpm/trunks/blob_parser.h

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+//
+// Copyright (C) 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 TRUNKS_BLOB_PARSER_H_
+#define TRUNKS_BLOB_PARSER_H_
+
+#include <string>
+
+#include "trunks/tpm_generated.h"
+#include "trunks/trunks_export.h"
+
+namespace trunks {
+
+class TRUNKS_EXPORT BlobParser {
+ public:
+  BlobParser() = default;
+  virtual ~BlobParser() = default;
+
+  // This method is used to construct a |key_blob| given the associated key's
+  // TPM2B_PUBLIC and TPM2B_PRIVATE structs. Returns true on successful
+  // serialization, else false.
+  virtual bool SerializeKeyBlob(const TPM2B_PUBLIC& public_info,
+                                const TPM2B_PRIVATE& private_info,
+                                std::string* key_blob);
+
+  // This method returns the Public and Private structs associated with a given
+  // |key_blob|. Returns true on success, else false.
+  virtual bool ParseKeyBlob(const std::string& key_blob,
+                            TPM2B_PUBLIC* public_info,
+                            TPM2B_PRIVATE* private_info);
+
+  // This method is used to construct a |creation_blob| given the associated
+  // key's |creation_data|, |creation_hash| and |creation_ticket| structs.
+  // Returns true on successful serializtion, else false.
+  virtual bool SerializeCreationBlob(const TPM2B_CREATION_DATA& creation_data,
+                                     const TPM2B_DIGEST& creation_hash,
+                                     const TPMT_TK_CREATION& creation_ticket,
+                                     std::string* creation_blob);
+
+  // This method returns the creation structures associated with a given
+  // |creation_blob|. Returns true on success, else false.
+  virtual bool ParseCreationBlob(const std::string& creation_blob,
+                                 TPM2B_CREATION_DATA* creation_data,
+                                 TPM2B_DIGEST* creation_hash,
+                                 TPMT_TK_CREATION* creation_ticket);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BlobParser);
+};
+
+}  // namespace trunks
+
+#endif  // TRUNKS_BLOB_PARSER_H_