Encryption method and system for enhancing safety performance of mass data

The invention discloses an encryption method and system for enhancing safety performance of mass data. The method is a technical method capable of ensuring data safety without re-decrypting and encrypting the full dose when encryption keys are updated. According to the method, the storage safety of mass data can be improved, the secret key updating does not need to consume plenty of time and calculation resource cost to re-encrypt original data, and the performance of data safety is greatly enhanced. 本发明公开了种提升海量数据安全性能的加密方法和系统，是种在加密密钥发生更新时，不需要对全量进行重新解密再加密也可以保证数据安全的技术方法。此方法可以提高海量数据的存储安全，密钥的更新不需要耗费大量时间和计算资源成本对原始数据进行重新加密处理，大大提升了数据安全的性能。