P钥原型及抗击Short　Vector破译算法研究

P-Key Primitive From and Its Anti-Translation by Short Vectory Algorism

在ＰＤＸ有限机公钥密码体制研究的基础上，论述Ｐ钥原型Ｐｎ的各种函数形式，Ｐｎ转化环指过程，并分析ＳＶ算法攻击Ｐｎ问题，指出Ｐ体制所具抗击各种破译算法的优越性。

on the base of the PDX system of finite state mechine public key cipher,this study mainly elaborates fuction forms of Pn in the P-Key primitive form and the conversionprocedure from Pn into Pn circular finger,and analyses the problem of Pn being attacked by the famous SV -Algorism.It shows the superiority of anti-translation of P-System by kinds of algorisms.