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It has been proved that Local-Period phenomena widely exsit in any chaotic binary sequence. Among the reasons of Local-Period phenomena existing, quantifications of chaotic binary random numnber generators are the key factor. This paper proposed that different quantifications could make sequences have different randomness from the same chaotic real-value seqence. The simulation results illustrated...
This paper proposes a new scheme design and hardware implementation of wireless transmission system based on FPGA and chaotic encryption with A5/1 algorithm. This design uses FPGA chip as the encryption core, in which Logistic system generates the initial key and encrypts the plaintext combined with A5/1 algorithm, then it uses SIM300 module to realize wireless transmission. Develop two test boards...
Nowadays RSA password system has been the broadest used and the highest security of public-key cryptosystem, the RSA password and RSA algorithm have been widely used in academia and industry. This paper does some further improvements to RSA algorithm. In addition, because of the SMSC will filter out the characters which are out of prescribed limit, thus the cipher text can't reach the destination...
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