Welcome to the resource topic for 2021/254
Title:
Multivariate Public Key Cryptosystem from Sidon Spaces
Authors: Netanel Raviv, Ben Langton, Itzhak Tamo
Abstract:A Sidon space is a subspace of an extension field over a base field in which the product of any two elements can be factored uniquely, up to constants. This paper proposes a new a public-key cryptosystem of the multivariate type which is based on Sidon spaces, and has the potential to remain secure even if quantum supremacy is attained. This system, whose security relies on the hardness of the well-known MinRank problem, is shown to be resilient to several straightforward algebraic attacks. In particular, it is proved that the two popular attacks on the MinRank problem, the kernel attack and the minor attack, succeed only with exponentially small probability. The system is implemented in software, and its hardness is demonstrated experimentally.
ePrint: https://eprint.iacr.org/2021/254
Talk: https://www.youtube.com/watch?v=TaQsdon8zvs
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