| 摘要 |
A license verifying system includes an application, a random code generating circuit, and a random code verifying module. Activated by a control variable, the application provides a random code parameter, which is first transmitted to the random code verifying module, and then, through an I/O bus, to the random code generating circuit. The random code generating circuit generates a corresponding random code upon receipt of the random code parameter, wherein the random code is afterward transmitted back to the random code verifying module for verification. A method of verifying a software license includes steps of providing a random code parameter, transmitting the random code parameter to a random code verifying module, transmitting the random code parameter to a random code generating circuit through an I/O bus, generating a corresponding random code, and verifying the random code.
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