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@misc{eprint-2008-18055,
title={Constructing Variable-Length PRPs and SPRPs from Fixed-Length PRPs},
booktitle={IACR Eprint archive},
keywords={secret-key cryptography / (strong) PRPs, block ciphers, variable-length PRPs},
url={http://eprint.iacr.org/2008/496},
note={shorter version will appear in Inscrypt 2008 dcook@cs.columbia.edu 14209 received 25 Nov 2008},
author={Debra L. Cook and Moti Yung and Angelos Keromytis},
year=2008
}
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