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Paper: Security of Symmetric Encryption Schemes with One-Way IND-CNA Key Setup

Authors:
Bartosz Zoltak
Download:
URL: http://eprint.iacr.org/2004/120
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Abstract: We analyse the consequences of specific properties of the key-setup phase in symmetric encryption schemes for their security. We find that key-setup routines satisfying IND-CNA and one-wayness allow to construct schemes which are provably secure against key-recovery attacks. We propose a specific cryptosystem based on a stream cipher with a one-way IND-CNA key-setup, for which we present a proof, based on a set of scheme-specific assumptions, that it remains secure even if a successful key-recovery attack against the underlying cipher is found.
BibTeX
@misc{eprint-2004-12092,
  title={Security of Symmetric Encryption Schemes with One-Way IND-CNA Key Setup},
  booktitle={IACR Eprint archive},
  keywords={secret-key cryptography / provable security, stream cipher, cryptanalysis},
  url={http://eprint.iacr.org/2004/120},
  note={Outlined at national Polish-language, no-proceedings cryptology conference Enigma 2004 bzoltak@vmpcfunction.com 12741 received 20 May 2004, last revised 18 Nov 2004},
  author={Bartosz Zoltak},
  year=2004
}