Cryptology ePrint Archive: Report 2012/528

An ID-Based Signcryption Scheme with Compartmented Secret Sharing for Unsigncryption

Graham Enos and Yuliang Zheng

Abstract: In this paper the ID-based signcryption scheme of Li, Xin, and Hu is extended to a compartmented scheme. If an organization is partitioned into different compartments, this scheme allows any member of a specific compartment to participate in the unsigncryption; moreover, each member of a compartment has information unique to that individual. This construction is the first (to the authors’ knowledge) to combine identity-based encryption, Shamir’s threshold scheme, and signcryption into an implementable compartmented sharing scheme.

Category / Keywords: public-key cryptography / pairings, identity-based encryption, threshold cryptography, signcryption, compartmented scheme

Date: received 6 Sep 2012, last revised 15 Sep 2012

Contact author: genos at uncc edu

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Version: 20120916:000145 (All versions of this report)

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