Welcome to the resource topic for 2019/892
Title:
CCM-SIV: Single-PRF Nonce-Misuse-Resistant Authenticated Encryption
Authors: Patrick Kresmer, Alexander Zeh
Abstract:We propose a new nonce-misuse-resistant authenticated encryption scheme, which instantiates the SIV paradigm of Rogaway and Shrimpton. In contrast to the GCM-SIV approach proposed by Gueron and Lindell, we do only use a single type of cryptographic primitive, which can be advantageous in restricted embedded devices. Furthermore, we use three independent and fixed subkeys derived from a single master key. Similar to the CCM mode, our scheme uses a combination of the CTR mode for the symmetric encryption and a MAC based on the CBC construction and is therefore called CCM-SIV. We provide a detailed security proof for our scheme. Furthermore, we outline its extension to a nonce-based key derivation as the AES-GCM-SIV approach.
ePrint: https://eprint.iacr.org/2019/892
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