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Abstract: The Competition for Authenticated Encryption: Security, Applicability, and Robustness (CAESAR) supported by the National Institute of Standards and Technology (NIST) is an ongoing project calling for submissions of authenticated encryption (AE) schemes. The competition itself aims at enhancing both the design of AE schemes and related analysis. The design goal is to pursue new AE schemes that are more secure than advanced encryption standard with Galois/counter mode (AES-GCM) and can simultaneously achieve three design aspects: security, applicability, and robustness. The competition has a total of three rounds and the last round is approaching the end in 2018. In this survey paper, we first introduce the requirements of the proposed design and the progress of candidate screening in the CAESAR competition. Second, the candidate AE schemes in the final round are classified according to their design structures and encryption modes. Third, comprehensive performance and security evaluations are conducted on these candidates. Finally, the research trends of design and analysis of AE for the future are discussed.

CAESAR竞赛认证加密算法设计分析与安全性评估进展

摘要：CAESAR竞赛是2013年由美国国家标准与技术研究院（NIST）资助的认证加密算法征集竞赛，旨在征集综合性能和安全性优于AES-GCM的认证加密算法，能够同时实现完整性和机密性。最后入围的算法可能被推荐至工业界并标准化。竞赛分3个轮次，第3轮在2018年结束。本文首先介绍CAESAR竞赛候选算法的设计要求和筛选进展，然后从设计结构和加密模式两方面对最后一轮候选算法进行归类，之后综述了候选算法的综合性能与安全性分析进展，最后探讨了认证加密算法的设计和分析研究趋势。

关键词：CAESAR竞赛；认证加密算法；分组密码；序列密码；哈希函数；安全性评估

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