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Design of a Protocol to Delegate Signing Right for Multi-level Proxy Signature  

Kim Seong-yeol (울산과학대학 컴퓨터정보학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.9, no.2, 2005 , pp. 361-365 More about this Journal
Abstract
Proxy signature schemes which allows original signer to delegate proxy signer to sign message on its behalf have a considerable amount of interest from researchers since Mambo[1] and have found many practical applications such as distributed network, Grid computing and electronic commerce. Araki[6] extended them to multi-level proxy signature. But it could not satisfy some security requirement. In this paper we propose a protocol to delegate signing right to another entity for multi-level proxy signature. Our protocol do not require secure channel and guarantee that nobody is able to repudiate delegation or acceptance of signing right, it is impossible for anyone to generate signature except designed and original signer can withdraw the delegation before expiration if it is necessary.
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