Practical Polynomial Time Known Plaintext Attacks on a Stream Cipher Proposed by John Nash

Abstract

In this paper we present two known plaintext attacks on a stream cipher which was developed by John Nash in the early 1950’s but whose design was declassified by the NSA only in 2012. The main attack reduces the claimed security of the scheme from ((n− 1)! · 2) to 

Topics

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Cite this paper

@inproceedings{Shamir2012PracticalPT, title={Practical Polynomial Time Known Plaintext Attacks on a Stream Cipher Proposed by John Nash}, author={Adi Shamir and Eldad Zinger}, year={2012} }