DocumentCode :
1928089
Title :
A Strong Designated Verifier Signature Scheme with Secure Disavowability
Author :
Yang, Bo ; Sun, Ying ; Yu, Yong ; Xia, Qi
Author_Institution :
Sch. of Comput. Sci., Shaanxi Normal Univ., Xian, China
fYear :
2012
fDate :
19-21 Sept. 2012
Firstpage :
286
Lastpage :
291
Abstract :
Designated verifier signature (DVS) is a cryptographic primitive, which allows a signer to convince a designated verifier of the validity of a signed statement and prevents the verifier from convincing any third party about the signature. As a variant of DVS, strong DVS (SDVS), which exhibits perfect non-transferability, does not accommodate secure disavow ability (or non-repudiation). It makes a SDVS more like a message authentication code rather than a digital signature. In this situation, the signer has to bear the responsibility of some "forged" signatures produced by the designated verifier. Therefore, it\´s interesting to construct a strong DVS scheme with secure disavow ability. In this paper, we address this problem with a novel construction of a SDVS scheme with secure disavow ability. The new scheme utilizes a chameleon hash function and supports the signer to have a complete control of his signature. Our scheme achieves unforgeability, non-transferability and secure disavow ability. Comparisons show that the new scheme outperforms the existing one in terms of computational efficiency and signature length.
Keywords :
cryptography; digital signatures; SDVS; chameleon hash function; cryptographic primitive; digital signature; disavowability security; forged signatures; nonrepudiation; nontransferability; signed statement validity; strong designated verifier signature scheme; third-party; unforgeability; Algorithm design and analysis; Digital signatures; Educational institutions; Public key; Resistance; Voltage control; Digital signature; Non-transferability; Secure disavowability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Networking and Collaborative Systems (INCoS), 2012 4th International Conference on
Conference_Location :
Bucharest
Print_ISBN :
978-1-4673-2279-9
Type :
conf
DOI :
10.1109/iNCoS.2012.24
Filename :
6337932
Link To Document :
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