Scalable Hierarchical Identity-based Signature Scheme from Lattices

• Geontae Noh,
• Ik Rae Jeong,

Vol. 7, No. 12, December 28, 2013
10.3837/tiis.2013.12.017, Download Paper (Free):

• Hierarchical identity-based signatures
• adaptive identity security
• strong unforgeability
• Lattice-based cryptography
• Provable Security

Abstract

In the paper, we propose a novel adaptively secure hierarchical identity-based signature scheme from lattices. The size of signatures in our scheme is shortest among the existing hierarchical identity-based signature schemes from lattices. Our scheme is motivated by Gentry et al.'s signature scheme and Agrawal et al.'s hierarchical identity-based encryption scheme.

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