In this mechanism, random encryption key, asymmetric encryption algorithm and one-time key for database encryption are used to ensure the key's safety in generation, storage, backup and recovery.

该机制通过非对称加密算法、随机密钥加密用户备份信息，以及“一次一密”加密数据库等手段有效解决传统密钥恢复机制在密钥产生、存储、备份、恢复过程中的安全问题。

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