Comparing Performance of Hierarchical Identity-Based Signature Schemes

作者:Chen, Peixin*; Wu, Yilun; Su, Jinshu; Wang, Xiaofeng
来源:IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, 2016, E99D(12): 3181-3184.
DOI:10.1587/transinf.2016EDL8136

摘要

The key escrow problem and high computational cost are the two major problems that hinder the wider adoption of hierarchical identity-based signature (HIBS) scheme. HIBS schemes with either escrow-free (EF) or online/offline (OO) model have been proved secure in our previous work. However, there is no much EF or OO scheme that has been evaluated experimentally. In this letter, several EF/OO HIBS schemes are considered. We study the algorithmic complexity of the schemes both theoretically and experimentally. Scheme performance and practicability of EF and OO models are discussed.