ID-Based Chameleon Signature Determine by Signer

Autor: Sheng-Wei Hung, 洪晟維
Rok vydání: 2009
Druh dokumentu: 學位論文 ; thesis
Popis: 97
Chameleon Signature was introduced to enhance the confidentiality and privacy of electronic transactions. By adopting Chameleon Signature, the recipient can not disclose the contents of the signed information to any third party without the signer''s consent. In order to improve the un-forgeability, non-transferability, and efficiency of Chameleon Signature, this paper proposed a modified ID-based Chameleon Signature scheme Determined by Signer, called ICS scheme. ICS has some advantages including (1) the signer can deny the signatures give to the recipient by himself, (2) non-transferability is improved by using double signature, and (3) providing a relaxing public key infrastructure. From the implementing and evaluating the ICS scheme, we prove that the design of our proposed ICS scheme is feasible.
Databáze: Networked Digital Library of Theses & Dissertations