Paper 2021/1059
Revisiting cryptanalysis on ChaCha from Crypto 2020 and Eurocrypt 2021
Sabyasachi Dey, Chandan Dey, Santanu Sarkar, and Willi Meier
Abstract
ChaCha has been one of the prominent ARX designs of the last few years because of its use in several systems. The cryptanalysis of ChaCha involves a differential attack which exploits the idea of Probabilistic Neutral Bits (PNBs). For a long period, the single-bit distinguisher in this differential attack was found up to 3 rounds. At Crypto
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- Stream CipherChaChaCorrelationTheoretical interpretation
- Contact author(s)
- sarkar santanu bir1 @ gmail com
- History
- 2021-09-24: revised
- 2021-08-16: received
- See all versions
- Short URL
- https://ia.cr/2021/1059
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2021/1059, author = {Sabyasachi Dey and Chandan Dey and Santanu Sarkar and Willi Meier}, title = {Revisiting cryptanalysis on {ChaCha} from Crypto 2020 and Eurocrypt 2021}, howpublished = {Cryptology {ePrint} Archive, Paper 2021/1059}, year = {2021}, url = {https://eprint.iacr.org/2021/1059} }