A Certificateless Signature Scheme Based on Quadratic Residues

DOI

10.2991/wartia-18.2018.21How to use a DOI?

Keywords

Identity-based cryptography; Certificateless signature scheme; Quadratic residue based cryptography.

Abstract

In the identity-based cryptography, the user’s public key can be computed from her/his identity and the user’s secret key is generated by the key generation centre. However, the identity-based cryptography suffers from the key escrow problem, i.e. the key generation centre knows all user’s secret keys. This paper proposes a certificateless signature scheme based on quadratic residues. In this scheme, a user’s private key is a combination of a partial private key generated by the key generation centre and a secret value chosen by the user. Then the key escrow problem in the identity-based cryptography is solved. This scheme is secure in the random oracle model under the hardness assumption of computational the problems of discrete logarithm and large integer factorization.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xuedong Dong
AU  - Shuo Han
AU  - Zhimin Li
PY  - 2018/09
DA  - 2018/09
TI  - A Certificateless Signature Scheme Based on Quadratic Residues
BT  - Proceedings of the 4th Workshop on Advanced Research and Technology in Industry (WARTIA 2018)
PB  - Atlantis Press
SP  - 126
EP  - 130
SN  - 2352-5401
UR  - https://doi.org/10.2991/wartia-18.2018.21
DO  - 10.2991/wartia-18.2018.21
ID  - Dong2018/09
ER  -