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Title:
CyclicRainbow - A multivariate Signature Scheme with a Partially Cyclic Public Key based on Rainbow
Authors: Albrecht Petzoldt, Stanislav Bulygin, Johannes Buchmann
Abstract:Multivariate Cryptography is one of the alternatives to guarantee the security of communication in the post-quantum world. One major drawback of such schemes is the huge size of their keys. In \cite{PB10} Petzoldt et al. proposed a way how to reduce the public key size of the UOV scheme by a large factor. In this paper we extend this idea to the Rainbow signature scheme of Ding and Schmidt \cite{DS05}. By our construction it is possible to reduce he size of the public key by up to 62 \verb!%!.
ePrint: https://eprint.iacr.org/2010/424
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