Cryptology ePrint Archive: Report 2009/280

Universally Anonymous IBE based on the Quadratic Residuosity Assumption

Giuseppe Ateniese and Paolo Gasti

Abstract: We introduce the first universally anonymous, thus key-private, IBE whose security is based on the standard quadratic residuosity assumption. Our scheme is a variant of Cocks IBE (which is not anonymous) and is efficient and highly parallelizable.

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Publication Info: This is the extended version of the paper that appears in CT-RSA, The Cryptographers' Track at the RSA Conference 2009.

Date: received 11 Jun 2009

Contact author: ateniese at cs jhu edu

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Version: 20090616:200931 (All versions of this report)

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