Cryptology ePrint Archive: Report 2019/1074

Non-monotonic Practical ABE with Direct Revocation, Blackbox Traceability, and a Large Attribute Universe

Dirk Thatmann

Abstract: This work shows all necessary calculations to extend the ``Practical Attribute Based Encryption: Traitor Tracing, Revocation, and Large Universe'' scheme of Liu and Wong with non-monotonic access structures. We ensure that the blackbox traceability property is preserved.

Category / Keywords: public-key cryptography /

Date: received 20 Sep 2019, last revised 19 Oct 2019

Contact author: dirk thatmann at alumni tu-berlin de

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Version: 20191019:180715 (All versions of this report)

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