Recently, market globalization and competition have forced companies to find alternative means to boost sales and revenue. The use of the cash flow is increasingly becoming a viable alternative for managers to improve their company’s profitability in a supply chain. In today’s business transactions, a supplier usually asks a manufacturer to pay via the advance-cash-credit (ACC) payment scheme i...

The volume of E-commerce transactions has considerably increased in the last several years. One of the most important aspects of such progress is the efforts made to develop and deploy dependable and secure payment infrastructures. Among these infrastructures is electronic cash, which is an attempt to reproduce the characteristics of paper cash in online transactions. Electronic cash schemes ha...

Abstrac t . 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 fo...

A fair electronic cash system is a system that allows customers to make payments anonymously. Furthermore the trusted third party can revoke the anonymity when the customers did illegal transactions. In this paper, a new fair electronic cash system based on group signature scheme by using elliptic curve cryptography is proposed, which satisfies properties of secure group signature scheme (corre...

2 The Dedication, or Cash-Flow Matching (CFM) Model. 3 2.1 The Deterministic Case . . . . . . . . . . . . . . . . . . . . . 4 2.1.1 Short-term reinvesting and borrowing . . . . . . . . . 5 2.1.2 Tradeability Considerations . . . . . . . . . . . . . . . 6 2.1.3 Transactions costs . . . . . . . . . . . . . . . . . . . . 8 2.1.4 Rebalancing an existing portfolio . . . . . . . . . . . . 8 2.1.5 Tim...

We introduce a novel conditional e-cash protocol allowing future anonymous cashing of bank-issued e-money only upon the satisfaction of an agreed-upon public condition. Payers are able to remunerate payees for services that depend on future, yet to be determined outcomes of events. Once payment complete, any double-spending attempt by the payer will reveal its identity; no double-spending by th...

Electronic cash (e-cash) refers to money exchanged electronically. The main features of traditional cash are usually considered desirable also in the context of e-cash. One such property is off-line transferability, meaning the recipient of a coin in a transaction can transfer it in a later payment transaction to a third person without contacting a central authority. Among security properties, ...