Improved Proxy Signature Scheme without Bilinear Pairings

Sahadeo Padhye; Namita Tiwari

Quality, Reliability, Security and Robustness in Heterogeneous Networks. 9th International Conference, QShine 2013, Greader Noida, India, January 11-12, 2013, Revised Selected Papers

Research Article

Improved Proxy Signature Scheme without Bilinear Pairings

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@INPROCEEDINGS{10.1007/978-3-642-37949-9_59,
    author={Sahadeo Padhye and Namita Tiwari},
    title={Improved Proxy Signature Scheme without Bilinear Pairings},
    proceedings={Quality, Reliability, Security and Robustness in Heterogeneous Networks. 9th International Conference, QShine 2013, Greader Noida, India, January 11-12, 2013, Revised Selected Papers},
    proceedings_a={QSHINE},
    year={2013},
    month={7},
    keywords={Digital signature Proxy signature Bilinear pairings Elliptic curve discrete log problem},
    doi={10.1007/978-3-642-37949-9_59}
}

Sahadeo Padhye
Namita Tiwari
Year: 2013
Improved Proxy Signature Scheme without Bilinear Pairings
QSHINE
Springer
DOI: 10.1007/978-3-642-37949-9_59

Sahadeo Padhye¹^,*, Namita Tiwari¹^,*

1: Motilal Nehru National Institute of Technology

*Contact email: sahadeomathrsu@gmail.com, namita.mnnit@gmail.com

Abstract

Proxy signature is an active research area in cryptography. In order to save the running time and the size of the signature, recently a provable secure proxy signature scheme without bilinear pairings has been proposed which is based on elliptic curve discrete log problem (ECDLP). In this paper, we point out some forgery attacks and security issues on this scheme. Furthermore, we also improve the scheme to make it secure against these forgeries. Our scheme is as efficient as previous proposed scheme.

Keywords: Digital signature Proxy signature Bilinear pairings Elliptic curve discrete log problem

Published: 2013-07-09

: http://dx.doi.org/10.1007/978-3-642-37949-9_59