Welcome to the resource topic for 2012/326
Title:
New Proof Methods for Attribute-Based Encryption: Achieving Full Security through Selective Techniques
Authors: Allison Lewko, Brent Waters
Abstract:We develop a new methodology for utilizing the prior techniques to prove selective security for functional encryption systems as a direct ingredient in devising proofs of full security. This deepens the relationship between the selective and full security models and provides a path for transferring the best qualities of selectively secure systems to fully secure systems. In particular, we present a Ciphertext-Policy Attribute-Based Encryption scheme that is proven fully secure while matching the efficiency of the state of the art selectively secure systems.
ePrint: https://eprint.iacr.org/2012/326
Slides: https://iacr.org/cryptodb/archive/2012/CRYPTO/presentation/3-2-Lewko.pdf
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