scholarly journals Secure and efficient identity-based proxy signature scheme with message recovery

2020 ◽  
Keyword(s):  
Proxy Signature ◽  
Signature Scheme ◽  
Message Recovery ◽  
Identity Based

Pairing-Free Identity-Based Proxy Signature Scheme With Message Recovery

2021 ◽  
Vol 15 (1) ◽  
pp. 117-137
Author(s):  
Salome James ◽  
Gowri Thumbur ◽  
Vasudeva Reddy P.
Keyword(s):  
Random Oracle Model ◽  
Random Oracle ◽  
Proxy Signature ◽  
Signature Scheme ◽  
Message Recovery ◽  
Comparison Results ◽  
Recovery Scheme ◽  
Identity Based ◽  
And Performance ◽  
Digital Signature Scheme

In many real-world situations, signature schemes with message recovery plays a very important role to minimize the bandwidth for efficient communications. A proxy signature scheme is a kind of digital signature scheme that allows an original signer to designate his/her signing capacity to a proxy signer. The proxy signer generates a signature on a message on behalf of the original signer. Such signatures are very useful in various applications where the delegation rights is quite common, especially in distributed systems and grid computing. This paper presents a pairing-free proxy signature with message recovery scheme that integrates the advantages of proxy signatures and message recovery in identity based setting. This scheme improves the computational and communicational efficiency due to pairing-free and message recovery features. The proposed scheme is proven secure in the random oracle model under the hardness assumption of the ECDLP. The comparison results shows that the proposed scheme is superior to the related works from the aspect of security and performance.

scholarly journals On the Security of a Certificateless Proxy Signature Scheme with Message Recovery

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Wenbo Shi ◽  
Debiao He ◽  
Peng Gong
Keyword(s):  
Distributed Systems ◽  
Grid Computing ◽  
Mobile Agent ◽  
Mobile Communications ◽  
Distribution Networks ◽  
Proxy Signature ◽  
Type I ◽  
Signature Scheme ◽  
Practical Applications ◽  
Message Recovery

A proxy signature scheme allows a proxy signer to sign messages on behalf of an original signer within a given context. It has lots of practical applications in distributed systems, grid computing, mobile agent applications, distributed shared object systems, global distribution networks, and mobile communications. Recently, Padhye et al. proposed a certificateless proxy signature scheme with message recovery and claimed the scheme is secure against both of the two types of adversaries. However, in this paper, we will show that Padhye et al.’s scheme is not secure against the Type I adversary. The analysis shows their scheme is not secure for practical applications.

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