发表刊物：Advances in Cryptology – ASIACRYPT 2022

关键字：Message authentication code , CBC-MAC · 3kf9, Beyond-birthday-bound security

摘要：3kf9 is a three-key CBC-type MAC that enhances the standardized integrity algorithm f9 (3GPP-MAC). It has beyond-birthday-bound security and is expected to be a possible candidate in constrained environments when instantiated with lightweight blockciphers. Two variants 2kf9 and 1kf9 were proposed to reduce key size for efficiency, but recently, Leurent et al. (CRYPTO'18) and Shen et al. (CRYPTO'21) pointed out critical flaws on these two variants and invalidated their security proofs with birthday-bound attacks.

第一作者：沈耀斌

论文类型：会议论文

学科门类：工学

文献类型：C

卷号：13792

页面范围：525–554

是否译文：否

发表时间：2023-01-30