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http://dx.doi.org/10.3745/KIPSTD.2005.12D.3.499

Hash-Chain based Micropayment without Disclosing Privacy Information  

Jeong Yoon-Su (충북대학교 이공대학 전자계산학과)
Baek Seung-Ho (충북대학교 전기전자컴퓨터공학부 전자계산학과)
Hwang Yoon-Cheol (충북대학교 전기전자컴퓨터공학부 전자계산학과)
Lee Sang-Ho (충북대학교 전기전자컴퓨터공학부&컴퓨터정보통신연구소)
Publication Information
The KIPS Transactions:PartD / v.12D, no.3, 2005 , pp. 499-506 More about this Journal
Abstract
A hash chain is a structure organized by hash function with high speed in computation. Systems using the hash chain are using extensively in various cryptography applications such as one-time passwords, server-supported signatures and micropayments. However, the most hash chain based on the system using pre-paid method provides anonymity but has the problem to increase payment cost. In this paper, we propose a new hash chain based on the micropayment system to keep user anonymity safe through blind signature in the withdrawal process of the root value without disclosing privacy information, and to improve efficiency by using secret key instead of public key in the system without the role of certificate.
Keywords
Micropayment; Privacy Hash-chain; Secret Key; Blind Signature;
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