Title :
Multi-Undeniable Signature Schemes
Author :
Xunxun, Shen ; Maozhi, Xu ; Yanhui, Zhao
Author_Institution :
Sch. of Math. Sci., Peking Univ., Beijing, China
Abstract :
Undeniable signature is a variant of digital signature that can only be verified only with the signer\´s consent and it is useful to protect signer\´s benefit. In this paper we proposes a new signature scheme named "multi-undeniable signatures"based on general undeniable signature that can protect jointed copyright of a group users. We describe its definition and security model, then construct a practical scheme based on Elgamal encryption. Our work extends application areas of undeniable signatures.
Keywords :
copyright; cryptography; digital signatures; Elgamal encryption; copyright; digital signature; group users; multiundeniable signature scheme; practical scheme; security model; Aggregates; Games; Polynomials; Protocols; Public key; Elgamal encryption; aggregate signature; multi signature; undeniable signature;
Conference_Titel :
Computational Intelligence and Security (CIS), 2011 Seventh International Conference on
Conference_Location :
Hainan
Print_ISBN :
978-1-4577-2008-6
DOI :
10.1109/CIS.2011.214
