Welcome to the resource topic for 2021/496
Title:
Applications of SKREM-like symmetric key ciphers
Authors: Mircea Digulescu
Abstract:In a prior paper we introduced a new symmetric key encryption scheme called Short Key Random Encryption Machine (SKREM), for which we claimed excellent security guarantees. In this paper we present and briefly discuss some of its applications outside conventional data encryption. These are Secure Coin Flipping, Cryptographic Hashing, Zero-Leaked-Knowledge Authentication and Authorization and a Digital Signature scheme which can be employed on a block-chain. We also briefly recap SKREM-like ciphers and the assumptions on which their security are based. The above applications are novel because they do not involve public key cryptography. Furthermore, the security of SKREM-like ciphers is not based on hardness of some algebraic operations, thus not opening them up to specific quantum computing attacks.
ePrint: https://eprint.iacr.org/2021/496
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