Abstract: A forward secure strong proxy signature scheme is proposed on the basis of the proxy signature schemes and forward secure schemes.The security of the proposed scheme relies on the difficulty of solving discrete logarithm problems and the difficulty of computing square roots modulo a large composite number.The signature scheme provides the safeguard to the rights and interests of both the original and the proxy signers.Even if an adversary can intrude the system and obtain the signature key at time period i, it could not forge the proxy signature before time period i.
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
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