From Combined to Hybrid: Making Feedback-based AE even Smaller

From Combined to Hybrid: Making Feedback-based AE even Smaller

In CHES 2017, Chakraborti et al. proposed COFB, a rate-1 sequential block cipher-based authenticated encryption (AE) with only 1.5n-bit state, where n denotes the block size. They used a novel approach, the so-called combined feedback, where each block cipher input has a combined effect of the prev...

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Bibliographic Details
Main Authors: Avik Chakraborti, Nilanjan Datta, Ashwin Jha, Snehal Mitragotri, Mridul Nandi
Format: Article
Language:English
Published: Ruhr-Universität Bochum 2020-06-01
Series:IACR Transactions on Symmetric Cryptology
Subjects:
COFB
feedback functions
authenticated encryption
lightweight
lower bound
Online Access:https://tosc.iacr.org/index.php/ToSC/article/view/8626

Internet

https://tosc.iacr.org/index.php/ToSC/article/view/8626

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