Hash-Chain based Micropayment without Disclosing Privacy Information 


Vol. 12,  No. 3, pp. 499-506, Jun.  2005
10.3745/KIPSTD.2005.12.3.499


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  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.

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[IEEE Style]

Y. S. Jeong, S. H. Baek, Y. C. Hwang, S. H. Lee, "Hash-Chain based Micropayment without Disclosing Privacy Information," The KIPS Transactions:PartD, vol. 12, no. 3, pp. 499-506, 2005. DOI: 10.3745/KIPSTD.2005.12.3.499.

[ACM Style]

Yoon Su Jeong, Seung Ho Baek, Yoon Cheol Hwang, and Sang Ho Lee. 2005. Hash-Chain based Micropayment without Disclosing Privacy Information. The KIPS Transactions:PartD, 12, 3, (2005), 499-506. DOI: 10.3745/KIPSTD.2005.12.3.499.

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