摘要： 提出了在IPv6报文认证中，一种用于构建MAC的安全散列算法。该算法散列码长度采用160 bit，大大提高了信息安全强度。在该算法的实施中，采用双线并行机制，且在每步迭代操作中使用不同的扩展字，极大地增强了在循环间寻找冲突的复杂度。在实现IPSec时，可将其作为认证算法。

关键词: IPv6, 信息安全, 报文认证, 散列函数

Abstract: This paper presents a secure hash algorithm which can be used to design MAC for message authentication based on IPv6. The algorithm allows a hash value of 160 bits,so it greatly increases the strength of information security. The algorithm adopts two parallel flow-process mechanism and in each iterative operation uses different extension word in its implementation,which greatly increases the complexity of seeking the conflict among rounds. It is used as authentication algorithm in implementing IPSec.

中图分类号: 

• TP393