Cryptology ePrint Archive: Report 2017/957

From Selective IBE to Full IBE and Selective HIBE

Nico Döttling and Sanjam Garg

Abstract: Starting with any selectively secure identity-based encryption (IBE) scheme, we give generic constructions of fully secure IBE and selectively secure hierarchical IBE (HIBE) schemes. Our HIBE scheme allows for delegation arbitrarily many times.

Category / Keywords: public key encryption, identity-based encryption, Hierarchical Identity-Based-Encryption

Original Publication (in the same form): IACR-TCC-2017

Date: received 28 Sep 2017, last revised 29 Sep 2017

Contact author: nico doettling at gmail com

Available format(s): PDF | BibTeX Citation

Version: 20170929:151711 (All versions of this report)

Short URL: ia.cr/2017/957

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