Volume 5, Issue 2

ID-Based Directed Blind Signature Scheme from Bilinear Pairings.

Author

Umaprasada Rao B. 1 * and Vasudeva Reddy P. 2

Abstract

Abstract:

Blind signature, introduced by Chaum, allows a user to obtain a signature on a message without revealing anything about the message to the signer. Blind signatures play an important role in plenty of applications such as e-voting, e-cash system where anonymity is of great concern. Identity based (IDbased) public key cryptography can be a good alternative for certified based public key setting, especially when efficient key management and moderate security are required. In this paper, we propose an ID-based directed blind signature scheme (ID-DBS) from bilinear pairings, which combines the concepts of blind signatures and directed signatures. The proposed ID-DBS scheme allows a user to obtain a signature on a message without revealing anything about the message to the signer; and sends it to the designated verifier. The designated verifier can only verify the validity of the signature and in case of trouble or if necessary he can prove the validity of the signature to any other party. The proposed scheme is based on the Hess IDbased digital signature scheme. Finally, we discuss the correctness and security of the proposed ID-DBS scheme.

DOI

https://doi.org/10.62226/ijarst20160285

PAGES : 571-576 | 84 VIEWS | 42 DOWNLOADS

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