A Key Delay Design Operation Model of Block Cipher Algorithm in Networks

摘要：

For the published block cipher algorithm, the key design is an important part to a cryptographic system. Block ciphers used in networks environment take more risks than ever before because of their initialization keys distribution in internet openly. But key algorithm and block cipher algorithm combined with model has been ignored for a long period. If the key delay technology is used, the speed of algorithm will be promoted and the chips area will be decreased with very low value. This article proposed an approach in block ciphers key design against only known ciphertext attack. Furthermore, we discussed this designs provable security according to information theory.

关键词： Block cipher algorithm A key delay module Operation model Provable security

作者: Lan Luo Zhiguang Qin Shaoquan Jiang Jian Wang

作者单位: Computer Communication & Network Security Group, School of Computer Science and Technology University of Electronic Science Technology of China, ChengDu 610054, P. R. China

会议类型: 国际会议

会议名称: The 2007 International Conference on Intelligent Systems and Knowledge Engineering(第二届智能系统与知识工程国际会议)

会议地点: 成都

会议语种:英文

页码: 1663-1666

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）