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Partially blind signature, which allows a signer to sign a partially blind message including pre-agreed information, is a variant of blind signature. In 2007 Hu et al presented an efficient ID-based partially blind signature scheme that was believed as a secure one. In 2008, Tseng et al shows that Hu et al's scheme could suffer from serious forgery attack, but they didn't propose the corresponding...
Signcryption is a kind of cryptographic primitive which allows combining the signature and encryption into one scheme efficiently. In this paper we first improve the proxy key generation protocol enforced by Tasi et al and then propose a novel identity based proxy signcryption scheme based on the improved proxy key generation protocol and a identity based signcryption scheme proposed by Libert et...
According to the feature that genetic algorithm (GA) is adapted to requirement of culture algorithms (CA) framework, GA is as the population space of CA and these two Algorithms are applied to the intelligent fixing test paper strategy research by combining. This method guides the population evolution efficiently through belief space and speeds up convergence. The experimental results prove that the...
Proxy multi-signature allows two or more than two original signers delegate their signing capabilities to the same designated proxy signer respectively and then the proxy signer can create a signature on behalf of them. In this paper the proposed proxy signature scheme has the same function as proxy multi-signature scheme, but based on a different mechanism which is introduced into the proxy signature...
Biomedicine becomes a strategic growing field with its profound impact on human health, clinical therapy, and basic research. To track activities of the rapidly developing and drastically competitive field, scientists must keep up-to-date with all relevant literatures. In this paper, we attempt to manage biomedical literatures based on ontology which is employed to add semantics and brace knowledge...
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