Abstract
SBLH is a 256-bit key stream cipher that is used in Business Security’s products for voice, fax and data communication. The cipher is claimed to be quite unique and yet very powerful. In this brief report, we suggest a possible chosen ciphertext attack on SBLH. We show that with 224 ciphertext/plaintext pairs, one can successfully recover the active key of length 217 bits.
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Business Security AB, Lund, Sweden, http://www.bsecurity.se
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© 2002 Springer-Verlag Berlin Heidelberg
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Jakimovski, G., Kocarev, L. (2002). Cryptanalysis of SBLH. In: Matsui, M. (eds) Fast Software Encryption. FSE 2001. Lecture Notes in Computer Science, vol 2355. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45473-X_12
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DOI: https://doi.org/10.1007/3-540-45473-X_12
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Print ISBN: 978-3-540-43869-4
Online ISBN: 978-3-540-45473-1
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