有限域小波变换的密码学性质简评  

Review on Cryptographic Property of Finite-Field Wavelet Transform

作　　者：熊玲[1] 申兵[1] 王金波[1] 

机构地区：[1]保密通信重点实验室

出　　处：《通信技术》2013年第12期58-61,共4页Communications Technology

基　　金：青年科学基金项目(No.61309034)~~

摘　　要：随着信息技术的发展,设计一种适用于可便携设备、无线传感器等硬件资源有限的设备,具有低复杂度的密码算法至关重要,基于有限域小波变换的密码算法在这种应用前景下应运而生。有限域小波变换是继实数、复数小波变换的研究后,对小波变换研究的一个新分支,研究了现有的基于有限域小波变换的密码算法,总结了有限域小波变换的密码学性质:对称性和不相关性,可以利用提升方法构造非线性有限域小波系统。With the development of information technology, the design of low-complexity algorithms suit- able for resource-limited hand-held devices and sensor network becomes more and more important, and under this situation the finite-field wavelet transform-based algorithms emerge as the times demand. Fol- lowing the real-field and complex-field wavelet transform, the finite-field wavelet transform is now a new branch of wavelet research, some crypto properties of the finite-field wavelet transforms are studied, such as symmetric and decorrelative properties. The nonlinearity of the finite-field wavelet system could be real- ized by lifting scheme.

关 键 词：有限域小波 对称性 不相关性 非线性 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]