乘积密码 meaning in Chinese

product ciphers

In cryptography , a product cipher developed by ibm that formed the basis of des . it used 128 - bit data blocks and a 128 - bit key
在密码学中,由ibm公司开发的一种乘积密码,后成为des的基础,它使用128位数据块和一个128位的密钥。
In the part of image encryption , chaotic map based on kolmogorov flow is used to permute . changing the traditional stream - cipher , new chaotic pseudo - random sequence generator based on the theory of product cipher is presented to substitute the pixel . based on it , linear map to confuse the pixel is presented further , withstanding statistical attack
在图像加密方面,采用基于kolmogorovflows的混沌映射对图像进行置乱,对传统流加密进行改造,提出了基于乘积密码理论的新型混沌伪随机序列发生器完成象素的混淆,并在此基础上进一步采用线性映射对象素进行扩散以抵抗统计攻击。