发明授权
US07814023B1 Secure download manager 有权
安全下载管理器

Secure download manager
摘要:
A software licensing method and system are in which a set of transient state information 154 for the target computational device at a selected point in time is used to generate a license key 144 to validate that the use of the licensed application is in accordance with the terms and conditions of a license.
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