@inproceedings{81bf46fe2fdd49c4a7fca55f809b46fa,
title = "An efficient state recovery attack on X-FCSR-256",
abstract = "We describe a state recovery attack on the X-FCSR-256 stream cipher of total complexity at most $2^{57.6}$. This complexity is achievable by requiring $2^{49.3}$ output blocks with an amortized calculation effort of at most $2^{8.3}$ table lookups per output block using no more than $2^{33}$ table entries of precomputational storage.",
keywords = "FCSR, X-FCSR, cryptanalysis, stream cipher, state recovery",
author = "Paul Stankovski and Martin Hell and Thomas Johansson",
year = "2009",
doi = "10.1007/978-3-642-03317-9_2",
language = "English",
isbn = "978-3-642-03316-2",
volume = "5665",
publisher = "Springer",
pages = "23--37",
editor = "Orr Dunkelman",
booktitle = "Fast Software Encryption/Lecture Notes in Computer Science",
address = "Germany",
note = "16th International Workshop, FSE 2009 ; Conference date: 22-02-2009 Through 25-02-2009",
}