This work is supported by the National Natural Science Foundation of China (No.61070172), the National High Technology Research and Development Program of China (863 Program) (No.2006AA01Z416) and the National Basic Research Program of China (No.2007CB311201).
This paper analyzes a new multivariate public key encryption scheme which we name as PTH+. It is an improved version of the TH scheme by the internal perturbation and plus methods. The inventors of PTH+ claimed that...
Supported by the National Basic Research Program of China(No.2007CB310606)
A method of controllable internal perturbation inside the chaotic map is proposed to solve the problem in chaotic systems caused by finite precision.A chaotic system can produce large amounts of initial-sensitive,non-...