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Simulatability and security of certificateless threshold signatures
- Source :
-
Information Sciences . Mar2007, Vol. 177 Issue 6, p1382-1394. 13p. - Publication Year :
- 2007
-
Abstract
- Abstract: We analyze the relationship between the notion of certificateless public key cryptography (CL-PKC) and identity-based schemes without a trusted private key generator (PKG), formally define the security of certificateless threshold signatures, and propose a concrete implementation based on bilinear pairings. To exhibit the security of our proposal, we develop the theory of simulatability and relationship between the certificateless threshold signatures and the underlying (non-threshold) ID-based signatures. We show that the proposed scheme is robust and existentially unforgeable against adaptively chosen message attacks under CDH assumption in the random oracle model. [Copyright &y& Elsevier]
- Subjects :
- *DIGITAL signatures
*COMPUTER network protocols
*CRYPTOGRAPHY
*COMPUTER security
Subjects
Details
- Language :
- English
- ISSN :
- 00200255
- Volume :
- 177
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Information Sciences
- Publication Type :
- Periodical
- Accession number :
- 23604722
- Full Text :
- https://doi.org/10.1016/j.ins.2006.08.008