Paper 2020/103
Improved Related-Tweakey Rectangle Attacks on Reduced-round Deoxys-BC-384 and Deoxys-I-256-128
Boxin Zhao, Xiaoyang Dong, Keting Jia, and Willi Meier
Abstract
Deoxys-BC is the core internal tweakable block cipher of the authenticated encryption schemes Deoxys-I and Deoxys-II.
Deoxys-II is one of the six schemes in the final portfolio of the CAESAR competition, while Deoxys-I is a 3rd round candidate. By well studying the new method proposed by Cid et al. at ToSC 2017 and BDT technique proposed by Wang and Peyrin at ToSC 2019, we find a new 11-round related-tweakey boomerang distinguisher of Deoxys-BC-384 with probability of
Metadata
- Available format(s)
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. Minor revision. INDOCRYPT 2019
- Keywords
- CAESARAuthenticated EncryptionDeoxys-BCRectangle Attack
- Contact author(s)
- xiaoyangdong @ tsinghua edu cn
- History
- 2020-02-04: received
- Short URL
- https://ia.cr/2020/103
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2020/103, author = {Boxin Zhao and Xiaoyang Dong and Keting Jia and Willi Meier}, title = {Improved Related-Tweakey Rectangle Attacks on Reduced-round Deoxys-{BC}-384 and Deoxys-I-256-128}, howpublished = {Cryptology {ePrint} Archive, Paper 2020/103}, year = {2020}, url = {https://eprint.iacr.org/2020/103} }