Welcome to the resource topic for 2016/516
Title:
Boneh-Gentry-Hamburg’s Identity-based Encryption Schemes Revisited
Authors: George Teseleanu, Ferucio Laurentiu Tiplea, Sorin Iftene, Anca-Maria Nica
Abstract:BasicIBE and AnonIBE are two space-efficient identity-based encryption (IBE) schemes based on quadratic residues, proposed by Boneh, Gentry, and Hamburg, and closely related to Cocks’ IBE scheme. BasicIBE is secure in the random oracle model under the quadratic residuosity assumption, while AnonIBE is secure in the standard model under the interactive quadratic residuosity assumption. In this paper we revise the BasicIBE scheme and we show that if the requirements for the deterministic algorithms used to output encryption and decryption polynomials are slightly changed, then the scheme’s security margin can be slightly improved.
ePrint: https://eprint.iacr.org/2016/516
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