A Chaos-Based Authenticated Cipher with Associated Data

Je, Sen Teh and Samsudin, Azman (2017) A Chaos-Based Authenticated Cipher with Associated Data. Security and Communication Networks, 2017 (904051). pp. 1-15. ISSN 1939-0114

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In recent years, there has been a rising interest in authenticated encryptionwith associated data (AEAD)which combines encryption and authentication into a unified scheme. AEAD schemes provide authentication for a message that is divided into two parts: associated data which is not encrypted and the plaintext which is encrypted. However, there is a lack of chaos-based AEAD schemes in recent literature. This paper introduces a new128-bit chaos-based AEAD scheme based on the single-key Even-Mansour and Type-II generalized Feistel structure. The proposed scheme provides both privacy and authentication in a single-pass using only one 128-bit secret key. The chaotic tent map is used to generate whitening keys for the Even-Mansour construction, round keys, and random s-boxes for the Feistel round function. In addition, the proposed AEAD scheme can be implemented with true randomnumber generators to map a message tomultiple possible ciphertexts in a nondeterministic manner. Security and statistical evaluation indicate that the proposed scheme is highly secure for both the ciphertext and the authentication tag. Furthermore, it has multiple advantages over AES-GCM which is the current standard for authenticated encryption.

Item Type: Article
Additional Information: Article ID 9040518
Subjects: Q Science > QA Mathematics > QA75.5-76.95 Electronic computers. Computer science
Divisions: Pusat Pengajian Sains Komputer (School of Computer Sciences) > Article
Depositing User: Mr Noorazilan Noordin
Date Deposited: 20 Sep 2017 16:09
Last Modified: 20 Sep 2017 16:09
URI: http://eprints.usm.my/id/eprint/36689

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