Paper 2004/344 Original: eprint.iacr.org/2004/344 ↗
Modified Parameter Attacks: Practical Attacks against CCA2 Secure Cryptosystems and Countermeasures
Abstract
We introduce the concept of Modified Parameter Attacks, a natural extension of the idea of Adapative Chosen Ciphertext Attacks (CCA2) under which some CCA2 secure systems can be shown to be insecure. These insecurities can be addressed at the application level, but can also be addressed when cryptographic schemes are being designed. We survey some existing CCA2 secure systems which are vulnerable to this attack and suggest practical countermeasures.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2004-12-11: last updated
- 2004-12-11: published
- Short URL
- https://ia.cr/2004/344
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2004/344,
author = {Nick Howgrave-Graham and Joseph H. Silverman and Ari Singer and William Whyte},
title = {Modified Parameter Attacks: Practical Attacks against CCA2 Secure Cryptosystems and Countermeasures},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/344},
year = {2004},
url = {https://eprint.iacr.org/2004/344}
}