Blockcipher-Based Authenticated Encryption: How Small Can We Go?

Journal of Cryptology, pp. 703-741, 2020.

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Keywords:
COFB AES GIFT Authenticated encryption Blockcipher

Abstract:

This paper presents a lightweight blockcipher-based authenticated encryption mode mainly focusing on minimizing the implementation size, i.e., hardware gates or working memory on software. The mode is called $\textsf {COFB}$, for COmbined FeedBack. $\textsf {COFB}$ uses an n-bit blockcipher as the underlying primitive and relies on th...More

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