Results 211 to 220 of about 1,270 (257)
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Cryptanalysis of Loiss Stream Cipher
The Computer Journal, 2012Loiss is a new byte-oriented stream cipher designed in 2010. It takes a 128-bit initial key and a 128-bit initial vector (IV) as inputs, and provides 128-bit-level security claimed by the designers. In this paper, we find a differential characteristic with significant probability over the full initialization of Loiss.
Lin Ding 0001, Jie Guan
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Observability of permutations, and stream ciphers
IEEE Transactions on Information Theory, 2003We study the observability of a permutation on a finite set by a complex-valued function. The analysis is done in terms of the spectral theory of the unitary operator on functions defined by the permutation. Any function f can be written uniquely as a sum of eigenfunctions of this operator; we call these eigenfunctions the eigencomponents of f.
Robert E. Byerly +2 more
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18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004., 2004
We propose a new stream cipher suitable for high-speed network applications, called HSSC (high-speed stream cipher). HSSC uses simple structure to allow detailed analysis and high software performance. The software implementation using C is about 2.07 cycles per byte on a Pentium II 450MHz platform. HSSC uses twelve 32-bit variables as internal states,
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We propose a new stream cipher suitable for high-speed network applications, called HSSC (high-speed stream cipher). HSSC uses simple structure to allow detailed analysis and high software performance. The software implementation using C is about 2.07 cycles per byte on a Pentium II 450MHz platform. HSSC uses twelve 32-bit variables as internal states,
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An effective RC4 stream cipher
2013 IEEE 8th International Conference on Industrial and Information Systems, 2013RC4 is the most widely used stream cipher around. A lot of modifications of RC4 cipher can be seen in open literature. Most of them enhance the secrecy of the cipher and the security levels have been analyzed theoretically by using mathematics. In this paper, a new effective RC4 cipher is proposed and the security analysis has been done using Shannon's
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Cryptanalysis of Stream Cipher Alpha1
2002Komninos, Honary and Darnell recently proposed stream cipher Alpha1. Alpha1 is basedon A5/1 and is claimed to be much safer than A5/1. However Alpha1 is insecure: a 29-bit feedback shift register could be recovered with about 3000 known plaintext bits with O(229) operations.
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