Is an optional parameter used to protect against certain kinds of cryptanalytic attacks 是一个可选参数,用于防止某些类型的密码分析攻击。
For example, in ecb mode, encrypting identical blocks of plaintext always produces identical blocks of ciphertext, facilitating certain kinds of cryptanalytic attacks 例如,在ecb模式中,对相同明文块的加密总是产生相同的密文块,这为某些类型的密码分析攻击打开了方便之门。
Some initial cryptanalysis and detailed statistical tests of scf are given, the results show that scf can resist some known cryptanalytic attacks and has excellent statistical properties 并且对scf作了一些初步的密码分析和详细的统计测试,结果表明:scf密码足够抵抗一些已知的密码分析、具有很好的统计性能。
Used properly-with a key of sufficient length and an encryption mode that doesn t leak information about the plaintext-most modern algorithms are reasonably safe against cryptanalytic attacks 如果使用得当使用足够长的密钥和不会泄漏关于明文的信息的加密方式大多数现代算法在密码分析攻击面向都有一定的安全性。
Security analyses of a variant of a new block cipher system ( called cac ) based on cellular automata theory are given using two cryptanalytic approaches . the results show that this variant of cac is very insecure under chosen-plaintext attacks 利用两种方法对一个基于细胞自动机的分组密码系统cac的变形进行了分析,结果表明:cac的这种变形在选择明文攻击下是极不安全的。