摘要
在分析已有WHF函数的基础上,通过对AES算法中30个既约多项式对应S盒的实现及性质讨论,提出了一种基于预映射动态选择S盒的hash函数.经过理论分析和实验证明,新算法在安全性和效率上均得到了进一步的提高.
After the analysis of the existing WHF function, we discussed the realization and properties of S-box corre- sponded to the thirty irreducible polynomials which are in the AES algorithm, and propose a bash function whicb based on a pre mapping dynamic selection S-box. Through theoretical analysis and experiments show that the new algorithm has been further improved in safety and efficiency.
出处
《内蒙古民族大学学报（自然科学版）》
2013年第4期407-410,共4页
Journal of Inner Mongolia Minzu University：Natural Sciences
基金
内蒙古民族大学教育教学研究资助项目(2009033)
关键词
动态S盒
散列函数
预映射
宽轨迹策略
Dynamic S-box
Hash function
Pre-image
Wide trail strategy
