Micro-digital money for electronic commerce

Khanh Quoc Nguyen*, Yi Mu, Vijay Varadharajan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

6 Citations (Scopus)


This paper proposes two novel cash-based micropayment schemes based on a new technique referred to as the double-locked hash chain technique. Both schemes support divisibility and transferability of digital coins in a simpler way compared to the existing solutions. The basic scheme allows full or partial use of a coin chain in a transaction; if only part of a coin chain has been used with one vendor, the rest of the chain can be used for instance in a subsequent transaction with another vendor. The modified scheme extends this to multiple chains making the scheme particularly suitable for a large number of micropayment transactions.

Original languageEnglish
Title of host publicationAnnual Computer Security Applications Conference
Place of PublicationLos Alamitos, CA
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages7
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 13th Annual Computer Security Applications Conference, ACSAC - San Diego, CA, USA
Duration: 8 Dec 199712 Dec 1997


OtherProceedings of the 1997 13th Annual Computer Security Applications Conference, ACSAC
CitySan Diego, CA, USA

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