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The paper proposes a cubic chaotic mapping. Its bifurcation graph and Lyapunov exponent show that the mapping owns excellent chaotic properties. A chaos-based hash function is then constructed. Compared to a chaotic hash function based on Logistic mapping, the new hash function not only possesses higher sensitivity to the original message, but also owns better avalanche effect and statistic properties.
Chaotic systems possess many features useful for cryptography. In the paper, a random bit generator based on two chaotic systems exponentially cross-coupled with each other is presented. Afterwards, four tests: mono-bit test, serial test, Poker test and auto-correlation test are employed to evaluate the randomness of the generator. At last, we analyze the linear complexity of the generated sequences,...
Chaotic systems possess many useful features, such as intense dependence on initial conditions and system parameters, irregularity of movement, limited running scope, etc. In the paper, we present a random bit generator based on two chaotic systems linearly cross-coupled with each other. Afterwards, we employ four tests: mono-bit test, serial test, poker test and auto-correlation test to evaluate...
This paper briefly introduces the concept of RSA algorithm, and presents the flaws of other existing implementations of RSA Algorithm in Java, thereby designs our improved implementation and analyzes the performance of our implementation. Wepsilave developed a piece of software for encrypting and decrypting text files.
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