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This paper proposed the construction algorithm of chaotic Hash function based on He??non-like mapping, and designed one password authentication scheme on basis of chaotic scramble sort algorithm and chaotic Hash function; it also resolved the insecurity problems that can't resist little numbers attack, the iteration times of plaintext transmission and the attack of fraud server in the scheme. It finally...
People increasingly depend on the mobile communication networks, specially the third generation of mobile communication network (3G), to transmit data with one another. Although 3G networks implement data confidentiality and integrity within network components, but don't offer user's end-to-end confidentiality and integrity. End-to-end encryption could improve these vulnerabilities, and facilitates...
Future mobile devices are expected to access different networks (such as 3rd generation network, WLAN, Bluetooth, Internet, and etc). Hence many sensitivity data are stored in them. How to protect the security of information and applications about mobile devices becomes an exigent problem. This paper proposes a secure authentication and authorization protocol for mobile devices. The protocol employs...
A new encryption strategy proposed in this paper, which based on duple permutation, is designed for transparent transcoding. Firstly the original image is divided into several macro blocks by certain size, and the sequence of macro block rows is reordered. Then, the macro blocks are permuted in rows. Theoretical analysis and experimental results indicate that the strategy proposed in this paper is...
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