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src/share/ob_encryption_util.h

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#include "lib/ob_define.h"
+#include "lib/container/ob_se_array.h"
+
+#ifndef OCEANBASE_SHARE_OB_ENCRYPTION_UTIIL_H
+#define OCEANBASE_SHARE_OB_ENCRYPTION_UTIIL_H
+
+namespace oceanbase {
+namespace common {
+class ObString;
+}
+namespace share {
+
+enum ObAesOpMode {
+  ob_invalid_mode = 0,
+  // attention:remember to modify compare_aes_mod_safety when add new mode
+  ob_max_mode
+};
+
+const int64_t OB_ORIGINAL_TABLE_KEY_LEN = 15;
+const int64_t OB_ENCRYPTED_TABLE_KEY_LEN = 16;
+const int64_t OB_MAX_MASTER_KEY_LENGTH = 16;
+const int64_t OB_MAX_TABLESPACE_ENCRYPT_KEY_LENGTH = 16;
+
+const int64_t OB_CLOG_ENCRYPT_RANDOM_LEN = 16;
+const int64_t OB_CLOG_ENCRYPT_MASTER_KEY_LEN = 32;
+const int64_t OB_CLOG_ENCRYPT_TABLE_KEY_LEN = 32;
+
+class ObEncryptionUtil {
+  public:
+  static bool need_encrypt(int64_t encrypt_id);
+  static int parse_encryption_algorithm(const common::ObString& str, ObAesOpMode& encryption_algorithm);
+  static int parse_encryption_algorithm(const char* str, ObAesOpMode& encryption_algorithm);
+  static int parse_encryption_id(const char* str, int64_t& encrypt_id);
+  static int parse_encryption_id(const common::ObString& str, int64_t& encrypt_id);
+};
+
+struct ObBackupEncryptionMode final {
+  enum EncryptionMode {
+    NONE = 0,
+    PASSWORD = 1,
+    PASSWORD_ENCRYPTION = 2,
+    TRANSPARENT_ENCRYPTION = 3,
+    DUAL_MODE_ENCRYPTION = 4,
+    MAX_MODE
+  };
+  static bool is_valid(const EncryptionMode& mode);
+  static bool is_valid_for_log_archive(const EncryptionMode& mode);
+  static const char* to_str(const EncryptionMode& mode);
+  static EncryptionMode parse_str(const char* str);
+  static EncryptionMode parse_str(const common::ObString& str);
+};
+
+}  // namespace share
+}  // namespace oceanbase
+#endif