To guarantee the safety of electronic payment is not only a technical problem, but also a legal issue.

保障电子支付活动的安全既是一个技术问题，更是一个法律问题。

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As an ideal payment type, the electronic cash have many excellences, such as lower cost, higher safety and off-line and so on.

电子现金作为一种理想的支付工具具有成本低、安全性高、离线交易等特点。

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For instance network infrastructure, means of payment, safety certification, such a great deal of questions as electronic material flow provide and deliver.

如网络基础设施、支付手段、安全认证、电子物流配送等诸多问题。

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