An Efficient Anonymous Reputation System.

Date of Submission

December 2016

Date of Award

Winter 12-12-2017

Institute Name (Publisher)

Indian Statistical Institute

Document Type

Master's Dissertation

Degree Name

Master of Technology

Subject Name

Computer Science


Cryptology and Security Research Unit (CSRU-Kolkata)


Ruj, Sushmita (CSRU-Kolkata; ISI)

Abstract (Summary of the Work)

Reputation systems play a very crucial role in establishing trust on line, especially in e-commerce settings. In a reputation system user provides the feedback in the form of ratings and reviews to other users. Feedback for a user is accumulated, which becomes the reputation of the user. By using the reputation, a user knows about the reliability of another user. In this work, we present an efficient scheme for anonymous reputation system where every user is able to rate a product only once otherwise anyone can detect the user who deviates from this property. Our scheme is based on group signature scheme so a user stay anonymous while rating the product as long as he rates only once. In this work, we present complexity analysis for our scheme and compare our scheme with other schemes as well.


ProQuest Collection ID:

Control Number


Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.


This document is currently not available here.