On the other hand , the cipher systems can be seen as a permutation systems under the controlling of key 另一方面,由于密码系统数学上可以看成是一个在密钥控制下的置换映射。
After that , an introduction of the relative knowledge of the 802 . 1x , pki and the ellipse cipher system is given 802 . 1x证书认证相关的pki公钥设施基础和椭圆曲线密码体制相关知识。
The paper finally revolves the secret cipher system , established and realizes one security practical information safe transmission model 论文最后围绕现代密码体制,建立并实现了一个安全实用的信息安全传输模型。