Lightweight AEAD and Hashing using the Sparkle Permutation Family

• Published in: IACR Transactions on Symmetric Cryptology Vol. 2020; no. S1; pp. 208 - 261
• Main Authors: Beierle, Christof, Biryukov, Alex, Cardoso dos Santos, Luan, Grossschädl, Johann, Perrin, Léo, Udovenko, Aleksei, Velichkov, Vesselin, Wang, Qingju
• Format: Journal Article
• Language: English
• Published: Ruhr Universität Bochum 22.06.2020; Ruhr-Universität Bochum
• Series: Special Issue on Designs for the NIST Lightweight Standardisation Process
• Subjects: Authenticated Encryption; Computer Science; Cryptography and Security; Hash functions; Lightweight Cryptography; Long Trail Strategy; NIST; SPARKLE

We introduce the Sparkle family of permutations operating on 256, 384 and 512 bits. These are combined with the Beetle mode to construct a family of authenticated ciphers, Schwaemm, with security levels ranging from 120 to 250 bits. We also use them to build new sponge-based hash functions, Esch256...