如何为软件创建许可证密钥? [英] How to create license key for a software?

问题描述

我想为特定软件创建许可证密钥/产品密钥.我想添加到此许可证的新想法是，例如，如果我已使用该许可证在90天内指定了特定的时间段，则该软件密钥..但是有人在格式化系统最多80天后再次使用该软件，然后再次使用该软件..所以问题就在这里..像我说的那样，该软件的使用时间不应超过10天，而不是就像它从第0天起重新开始一样.我几乎已经开发了用于创建许可证密钥文件的软件，但是这里出现了问题，所以如果有人对此有某种逻辑，请尽快回答...

I want to create a license key/product key for a particular software.The new think I want to add to this license is something like,if I have given the software for a particular period of time like 90 days using this license key..but someone used it up to 80 days after that he/she format their system & again reuse the software..so problem comes over here..like the software shouldn''t work more then 10 days according to me, not like it started again from the 0th day..I had almost developed the software for creating license key file but the problem arises here,so please if someone has some logic about it answer as soon as possible please ...

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