Sharing DSS by the Chinese Remainder Theorem

• Autores: Kamer Kaya, Ali Aydin Selçuk
• Localización: Journal of computational and applied mathematics, ISSN 0377-0427, Vol. 259, Nº 2, 2014, págs. 495-502
• Idioma: inglés
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• Resumen

  • In this paper, we propose a new threshold scheme for the Digital Signature Standard (DSS) using Asmuth�Bloom secret sharing based on the Chinese Remainder Theorem (CRT). To achieve the desired result, we first show how to realize certain other threshold primitives using Asmuth�Bloom secret sharing, such as joint random secret sharing, joint exponential random secret sharing, and joint exponential inverse random secret sharing. We prove the security of our scheme against a static adversary. To the best of our knowledge, this is the first provably secure threshold DSS scheme based on CRT.