Welcome to the resource topic for 2008/041
Title:
A New Proxy Identity-Based Signcryption Scheme for Partial Delegation of Signing Rights
Authors: Hassan Elkamchouchi, Yasmine Abouelseoud
Abstract:In this paper, a new identity-based proxy signcryption scheme is presented. The proposed scheme allows partial delegation of signing rights. Consequently, a signature created by the proxy signer is distinguishable from that created by the principal signer. This level of security is a common requirement in many applications to prevent malicious proxy agents from impersonating the principal signer. Moreover, the scheme is based on bilinear pairings over elliptic curves and thus smaller key sizes are required compared to schemes not utilizing elliptic curves. A revocation protocol of dishonest agents is given together with a renewal procedure for the proxies of honest agents. Finally, an application scenario for the proposed scheme is presented.
ePrint: https://eprint.iacr.org/2008/041
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