Netinfo Security ›› 2018, Vol. 18 ›› Issue (7): 47-54.doi: 10.3969/j.issn.1671-1122.2018.07.006

• Orginal Article • Previous Articles     Next Articles

A Short Identity-based Signature Scheme with Bilateral Security

Liming ZUO1,2,3, Kaiyu HU1,2(), Mengli ZHANG1,2, Pingping XIA1,2   

  1. 1. School of Science, East China Jiaotong University, Nanchang Jiangxi 330013, China
    2. Institute of Systems Engineering and Cryptograph, East China Jiaotong University, Nanchang Jiangxi 330013, China
    3. Collaborative Innovation Center for Economics Crime Investigation and Prevention Technology, Nanchang Jiangxi 330103, China
  • Received:2018-01-30 Online:2018-07-15 Published:2020-05-11

Abstract:

Short identity-based signature with forward-secure is an important research direction of digital signature, which has important applications in industrial control protocol of IOT (Internet of things). Based on the BONEH’s scheme, starting from the basic idea of forward security definition, a scheme with bilateral security and short identity-based signature was structured, and scheme not only has the security property of identity-based signature, but also satisfies forward security and backward security, which effectively solves the problem of private key leakage in identity-based signature schemes. Subsequently, the scheme was proved to be existentially unforgeable under the adaptive chosen message and identity-based attacks in random oracle model with k-traitors (k-CAA) problem. Finally, the scheme was compared with several classical schemes about the efficiency analysis and was successfully implemented with C in the same environment. The results show that the computational complexity of the signature and verification is lower and the length of the signature is shorter.

Key words: forward security, backward security, identity-based signature, short signature, random oracle model

CLC Number: