A New Proxy Signature Scheme with Efficient Multiple Delegations to the Same Proxy Signer

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Provided by: Binary Information Press
Topic: Security
Format: PDF
In this paper, the authors improve a revocable proxy signature scheme with efficient multiple delegations to the same proxy signer which was proposed by the researchers. They solve the problem with no trust third party to achieve the same performance using a delegation period list maintained by the original signer. Moreover, the new scheme uses fewer parameters so that the length of signature is shorter and the scheme is more efficient. Besides, the proxy signatures and the original signatures can be distinguishable.
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