Cryptology ePrint Archive: Report 2020/059

ARX-KW, a family of key wrapping constructions using SipHash and ChaCha

Satō Shinichi

Abstract: ARX-KW is a family of key wrapping construction based on add-rotate-xor primitives: the pseudo-random function SipHash for authentication and the stream cipher ChaCha for confidentiality. This paper presents ARX-KW, proposes a specific instantiation of ARX-KW and details the design decisions that were made.

Category / Keywords: secret-key cryptography / authenticated encryption, key management, key wrapping

Date: received 20 Jan 2020

Contact author: sato at airmail cc

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Version: 20200121:184545 (All versions of this report)

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