期刊名称：International Journal of Multimedia and Ubiquitous Engineering
印刷版ISSN：1975-0080
出版年度：2014
卷号：9
期号：2
页码：141-152
出版社：SERSC
摘要：Users hesitate to submit negative feedback in reputation systems due to the fear of retaliation from the recipient user. A Preserving reputation system which does not require continuous online communication with a trusted third party is proposed, Peers in this trust model use a verifiable random function, non-interactive zero-knowledge and ratee's transaction identities, to generate evaluation tags, so as to anonymously evaluate the transaction objects and hide the identity of the transaction process. Analysis shows the scheme guarantees the privacy of feedback providers resists the inherent Sybil attacks in preserving reputation system and evidently improves the accuracy of trust accumulated value compared with existing trust models
