Paper 2021/320 Original: eprint.iacr.org/2021/320 ↗
Binding BIKE errors to a key pair
Abstract
The KEM BIKE is a Round-3 alternative finalist in the NIST Post-Quantum Cryptography project. It uses the FO$^{\not \bot}$ transformation so that an instantiation with a decoder that has a DFR of $2^{-128}$ will make it IND-CCA secure. The current BIKE design does not bind the randomness of the ciphertexts (i.e., the error vectors) to a specific public key. We propose to change this design, although currently, there is no attack that leverages this property. This modification can be considered if BIKE is eventually standardized.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2021-03-11: last updated
- 2021-03-11: published
- Short URL
- https://ia.cr/2021/320
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2021/320,
author = {Nir Drucker and Shay Gueron and Dusan Kostic},
title = {Binding BIKE errors to a key pair},
howpublished = {Cryptology {ePrint} Archive, Paper 2021/320},
year = {2021},
url = {https://eprint.iacr.org/2021/320}
}