We propose a micro-cash technique based on a one-time signature scheme: signing a message more than once leads to disclosure of the signer’s private key. In addition to usual cash properties such as off-fine bank for payment and spender's anonymity, the technique also provides a number of useful features. These include: identifying double spender with strong proof, cash revocable for identified double spender, independent of using tamper-resistant devices, coin sub-divisible to smaller denominations, and system simplicity in terms of small-sized data for cash representation as well as simple protocols for cash withdrawal, payment and deposit. We reason that these features support a lightweight cash system suitable for handling very low value payment transactions, such as information purchases on the Internet.
CITATION STYLE
Mao, W. (1996). Lightweight micro-cash for the internet. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 1146, pp. 15–32). Springer Verlag. https://doi.org/10.1007/3-540-61770-1_25
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