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Paper: OleF: an Inverse-Free Online Cipher. An Online SPRP with an Optimal Inverse-Free Construction

Authors:
Ritam Bhaumik , Indian Statistical Institute, Kolkata
Mridul Nandi , Indian Statistical Institute, Kolkata
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DOI: 10.13154/tosc.v2016.i2.30-51
URL: http://tosc.iacr.org/index.php/ToSC/article/view/564
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Abstract: Online ciphers, in spite of being insecure against an sprp adversary, can be desirable at places because of their ease of implementation and speed. Here we propose a single-keyed inverse-free construction that achieves online sprp security with an optimal number of blockcipher calls. We also include a partial block construction, without requiring any extra key.
BibTeX
@article{tosc-2016-28118,
  title={OleF: an Inverse-Free Online Cipher. An Online SPRP with an Optimal Inverse-Free Construction},
  journal={IACR Trans. Symmetric Cryptol.},
  publisher={Ruhr-Universit├Ąt Bochum},
  volume={2016, Issue 2},
  pages={30-51},
  url={http://tosc.iacr.org/index.php/ToSC/article/view/564},
  doi={10.13154/tosc.v2016.i2.30-51},
  author={Ritam Bhaumik and Mridul Nandi},
  year=2016
}