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With increasing use of network applications, security has become a major issue. Strong encryption mechanisms are required for securing important data. This encryption is provided by a strong cipher, capable of producing strong and highly random sequence of pseudo-random numbers. Through this paper, we present a detailed study of existing LFSR (Linear Feedback Shift Register) based hardware ciphers...
With the increase in wireless communication technology, encryption of information sent has become a major concern. This involves both the software level and hardware level encryption. GSM was the first cellular system that paid attention to secure mobile communication. Before the advent of GSM the cellular system had no particular security. The GSM voice calls are encrypted using a family of algorithms...
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