It can be divided into two sorts as stream cipher mode and block cipher mode by encrypting mode. The most commonly used symmetric encryption algorithms are almost based on block cipher mode.

对称加密算法从加密模式上可分为流密码(序列密码)和分组密码(块密码)两大类，几乎当前使用的所有对称加密算法都是基于分组密码模式。

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It can be divided into two sorts as stream cipher mode and block cipher mode by encrypting mode. The most commonly used symmetric encryption algorithms are almost based on block cipher mode.

对称加密算法从加密模式上可分为流密码(序列密码)和分组密码(块密码)两大类，几乎当前使用的所有对称加密算法都是基于分组密码模式。

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