Format-Preserving Encryption For DateTime

摘要：

In many applications, such as encryption of DateTime field in database, it is desirable to encrypt items from an arbitrarily sized set with the specified format described as YYYY-MM-DD HH:MM:SS onto that same set. Unfortunately, conventional block ciphers such as DES, 3DES or AES are unsuitable for this purpose. The solution to it belongs to the format-preserving encryption (FPE) category, in the paper, we present an FPE scheme for DateTime based on rank-then-cipher mode, and then analyze its security and efficiency. We further propose a new more efficient approach named reference-based offset encryption to resolve the FPE problem on DateTime domain, which can be applied in message space comprised of fixed-length strings taken over some alphabet as well.

关键词： Format-preserving encryption rank-then-encipher Date Time encryption reference-based offset encryption

作者: Zheli Liu Chunfu Jia Jingwei Li Xiaochun Cheng

作者单位: Department of Computer & Information Security Nankai University Tianjin, China Department of Computer Communications Middlesex University London, England

会议类型: 国际会议

会议名称: 2010 IEEE International Conference on Intelligent Computing and Intelligent Systems(2010 IEEE 智能计算与智能系统国际会议 ICIS 2010)

会议地点: 厦门

会议语种:英文

页码: 201-205

在线出版日期: 2010-10-29（万方平台首次上网日期，不代表论文的发表时间）