this paper shows that hi-times substitute makes permutation structure more complicity, so symmetrical permutation can be chosen as the diffusion module in block cipher algorithm design.
指出了分组密码的多次迭代使对称置换结构复杂化,可以选择对称置换作为分组密码算法的扩散部分来设计。
des, the united states data encryption standard, is a block cipher algorithm with 8-byte long blocks and a key length of 56 bits.
即美国国家数据加密标準(theunitedstatesdataencryptionstandard),是一个块密码算法,块长8字节,密钥长56位。
then the paper induces some universal mathematic operation structure cell of block cipher algorithm by analyzing structure and efficiency of block cipher algorithm.
通过分析这些运算结构单元的实现效率,总结出了算法结构中影响算法实现效率的因素。
the operation mode of block cipher algorithm is vital to sensitive information security.
分组加密算法的工作模式选择对于敏感信息的安全至关重要。
a new symmetric key block cipher algorithm utilizing the essence of chaos is proposed.
利用混沌信号的特性提出了一种新的对称密钥块加密算法。
the operation mode of block cipher algorithm is of vital importance for information security.
分组对称加密算法的工作模式对于敏感信息的安全性至关重要。
i have provided support for the tripledes block cipher algorithm only for demonstration.
我已经对tripledes块密码算法提供了支持,但只用于演示。
i use a block cipher algorithm for encryption that requires the clear data bytes to be in blocks of 8 bytes, so i pad the last incomplete block with some characters.
我对需要将明文数据字节放在8字节块的加密使用块密码算法,所以我用一些字符填充最后一个不完整的块。
section 3 introduces two kinds of block cipher algorithm used in data synchronization system.
这是数据同步系统服务器端和客户端加密模块的核心。