Paper 2009/110

On the Security of Stream Cipher CryptMT v3

Haina Zhang and Xiaoyun Wang

Abstract

CryptMT v3 is a stream cipher submitted to eStream project, and has entered the third evaluation phase. Any attack has not been found until now. In this paper, we mainly discuss the security of the state initialization process of CryptMT v3. For the key and IV setup function $f_K$, we can construct a probabilistic testing algorithm $A^{f_K}$ with a distinguishing probability 1, which indicates that for each key $K$, $f_K$ is a non-PRF. However, we have not found any non-randomness about the keystream output.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Keywords
stream ciphercryptanalysisCryptMT v3
Contact author(s)
hnzhang cn @ gmail com
foxseazhn @ sina com
History
2009-03-11: received
Short URL
https://ia.cr/2009/110
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2009/110,
      author = {Haina Zhang and Xiaoyun Wang},
      title = {On the Security of  Stream Cipher CryptMT v3},
      howpublished = {Cryptology ePrint Archive, Paper 2009/110},
      year = {2009},
      note = {\url{https://eprint.iacr.org/2009/110}},
      url = {https://eprint.iacr.org/2009/110}
}
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