Paper 2008/514 Original: eprint.iacr.org/2008/514 ↗
Noncommutative Polly Cracker-type cryptosystems and chosen-ciphertext security
Abstract
In this paper we consider chosen-ciphertext attacks against noncommutative Polly Cracker-type cryptosystems. We present several versions of these attacks, as well as techniques to counter them. First we introduce a chosen-ciphertext attack, which assumes a very simple private key. We then present generalizations of this attack which are valid in more general situations, and propose a simple but effective technique to counter these attacks. Finally, we show how this technique can also be used to counter the adaptive chosen-ciphertext attacks against noncommutative Polly Cracker-type cryptosystems.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2008-12-09: last updated
- 2008-12-09: published
- Short URL
- https://ia.cr/2008/514
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2008/514,
author = {Tapan Rai and Stanislav Bulygin},
title = {Noncommutative Polly Cracker-type cryptosystems and chosen-ciphertext security},
howpublished = {Cryptology {ePrint} Archive, Paper 2008/514},
year = {2008},
url = {https://eprint.iacr.org/2008/514}
}