Differential cryptanalysis of the data encryption standard
Differential cryptanalysis of the data encryption standard
New types of cryptanalytic attacks using related keys
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
A Stream Cipher Based on Linear Feedback over GF(28)
ACISP '98 Proceedings of the Third Australasian Conference on Information Security and Privacy
SAC '98 Proceedings of the Selected Areas in Cryptography
Cryptoanalysis of the Cellular Encryption Algorithm
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Guess-and-Determine Attacks on SNOW
SAC '02 Revised Papers from the 9th Annual International Workshop on Selected Areas in Cryptography
Linearity Properties of the SOBER-t32 Key Loading
FSE '02 Revised Papers from the 9th International Workshop on Fast Software Encryption
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SOBER is a new stream cipher that has recently been developed by Greg Rose for possible applications in wireless telephony [3]. In this paper we analyze SOBER and point out different weaknesses. In the case where an attacker can analyze key streams generated for consecutive frames with the same key we present an attack, that in our implementation requires less than one minute on a 200Mhz Pentium.