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