2012•Microcomputer InformationRequires access

Threshold Digital Signature Scheme Without Trusted Center

Zhu Xiao

Abstract

With Combination of digital signatures and non-trusted threshold secret sharing,Based on ECC and ElGamal digital signature scheme,a threshold digital signature scheme without a trusted center is designed,.In this scheme,the trusted center to manage secret key and distribute secret shadows is eliminated,t or more than t members produce a digital signature.They don' t produce a secret key.Secret communication is required only in the secret-generating phase.The scheme is characterized by excellentsecurity as well as high efficiency.

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Key concepts: Computer science, ElGamal signature scheme, Digital signature, Secret sharing, Merkle signature scheme, Scheme (mathematics), ElGamal encryption, Computer security