A Lattice-Based Identity-Based Proxy Blind Signature Scheme in the Standard Model
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-09-25
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
A proxy blind signature scheme is a special form of blind signature which allowed a designated person called proxy signer to sign on behalf of original signers without knowing the content of the message.
It combines the advantages of proxy signature and blind signature.
Up to date, most proxy blind signature schemes rely on hard number theory problems, discrete logarithm, and bilinear pairings.
Unfortunately, the above underlying number theory problems will be solvable in the postquantum era.
Lattice-based cryptography is enjoying great interest these days, due to implementation simplicity and provable security reductions.
Moreover, lattice-based cryptography is believed to be hard even for quantum computers.
In this paper, we present a new identity-based proxy blind signature scheme from lattices without random oracles.
The new scheme is proven to be strongly unforgeable under the standard hardness assumption of the short integer solution problem (SIS) and the inhomogeneous small integer solution problem (ISIS).
Furthermore, the secret key size and the signature length of our scheme are invariant and much shorter than those of the previous lattice-based proxy blind signature schemes.
To the best of our knowledge, our construction is the first short lattice-based identity-based proxy blind signature scheme in the standard model.
American Psychological Association (APA)
Zhang, Lili& Ma, Yanqin. 2014. A Lattice-Based Identity-Based Proxy Blind Signature Scheme in the Standard Model. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1044167
Modern Language Association (MLA)
Zhang, Lili& Ma, Yanqin. A Lattice-Based Identity-Based Proxy Blind Signature Scheme in the Standard Model. Mathematical Problems in Engineering No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1044167
American Medical Association (AMA)
Zhang, Lili& Ma, Yanqin. A Lattice-Based Identity-Based Proxy Blind Signature Scheme in the Standard Model. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1044167
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1044167