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In this paper, we define the RC4 state and introduce its forward and backward property. Based on the RC4 state and its forward and backward property, a simple, lightweight, but robust security protocol which achieves data confidentiality, data authentication, data integrity, and data freshness with low overhead and simple operations is presented. Furthermore, an RC4 state based hash function for the...
Digital Image Encryption is the image processing in the field of a new branch. This paper discusses the modern cryptography, and RSA algorithms. Root According to the data features of digital image itself, designed and implemented digital image based on RSA encryption algorithm, and made further studies of the head. The wireless sensor networks, which self-organized, are data-centered. The current...
Sensor networks are expected to be used at anywhere in the near future and recently their security problems have been rising. Due to the limited computing power of senor nodes, it is impossible to use asymmetric cryptography approaches for the session key establishment or to apply advanced encryption method such as AES and DES for the data encryption. In this paper, therefore, we propose a key establishment...
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