Cryptanalysis of the Full Spritz Stream Cipher
@article{Banik2016CryptanalysisOT, title={Cryptanalysis of the Full Spritz Stream Cipher}, author={S. Banik and T. Isobe}, journal={IACR Cryptol. ePrint Arch.}, year={2016}, volume={2016}, pages={92} }
Spritz is a stream cipher proposed by Rivest and Schuldt at the rump session of CRYPTO 2014. It is intended to be a replacement of the popular RC4 stream cipher. In this paper we propose distinguishing attacks on the full Spritz, based on a short-term bias in the first two bytes of a keystream and a long-term bias in the first two bytes of every cycle of N keystream bytes, where N is the size of the internal permutation. Our attacks are able to distinguish a keystream of the full Spritz from a… CONTINUE READING
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