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How to Enrich the Message Space of a Cipher

Authors:
Thomas Ristenpart
Phillip Rogaway
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URL: http://eprint.iacr.org/2007/109
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Abstract: Given (deterministic) ciphers $\calE$ and~$E$ that can encipher messages of $\el$ and $n$ bits, respectively, we construct a cipher~$\calE^*=XLS[\calE,E]$ that can encipher messages of $\el+s$ bits for any $s
BibTeX
@misc{eprint-2007-13391,
  title={How to Enrich the Message Space of a Cipher},
  booktitle={IACR Eprint archive},
  keywords={secret-key cryptography / Deterministic encryption, enciphering scheme, symmetric encryption, length-preserving encryption, multipermutation},
  url={http://eprint.iacr.org/2007/109},
  note={Preliminary version appears in FSE 2007. tristenp@cs.ucsd.edu 13597 received 25 Mar 2007},
  author={Thomas Ristenpart and Phillip Rogaway},
  year=2007
}