WebJan 1, 2009 · Inner state of a stream cipher is said to be as large as necessary but at the same time as small as possible. Trivium, a hardware oriented stream cipher, has been selected for the final... Webtions. We show that using XL, it is possible to break stream ciphers that were known to be immune to all previously known attacks. For exam-ple, we cryptanalyse the stream cipher Toyocrypt accepted to the second phase of the Japanese government Cryptrec program. Our best attack on Toyocrypt takes 292 CPU clocks for a 128-bit cipher. The interesting
Evaluation of TOYOCRYPT-HS1 January 17, 2001
WebJan 1, 2002 · It is shown that the effective secret-key size of TOYOCRYPT-HS1 stream cipher is only 96 bits, although the secret key consists of 128 bits. This characteristic … WebIn 1985 Siegenthaler introduced the concept of correlation attacks on LFSR based stream ciphers. A few years later Meier and Staffelbach demonstrated a special technique, usually referred to as fast correlation attacks, that is very effective if the feedback polynomial has a special form, namely, if its weight is very low. Due to this seminal result, it is a well … china wok snellville ga
Cryptanalysis of TOYOCRYPT-HS1 stream cipher DSpace-CRIS …
WebSep 15, 2007 · Algebraic attacks and fast correlation attacks are applied with a model of the Y00 protocol with nonlinear filtering like the Toyocrypt stream cipher as the running key generator, and it is shown that these attacks in principle do not work on such models even when the mapping between running key and quantum state signal is fixed. WebM. Mihaljevicand H. Imai, "Cryptanalysis of TOYOCRYPT-HS1 Stream Cipher", IEICE Trans. Fundamentals, vol. E85-A, pp. 66-73, Jan. 2002. M. Mihaljevic, M.P.C. Fossorier and H. Imai, "On decoding techniques for cryptanalysis of certain encryption algorithms", IEICE Transactions on Fundamentals, vol. E84-A, pp. 919-930, Apr. 2001. WebCryptanalysis of Toyocrypt-HS1 stream cipher. ... An approach for stream ciphers design based on joint computing over random and secret data. MJ Mihaljević, H Imai. Computing 85, 153-168, 2009. 49: 2009: Convergence of a Bayesian iterative error-correction procedure on a noisy shift register sequence. china wok southaven mississippi