| 摘要 |
The method of protecting or controlling access to anything, be it a computer , internet or networking access such as firewall or a protection to a web page or to a server, or a computer software be it data or program, that is designed to protect itself from getting stolen or illegally copied or any other form of security device such as a lo ck to your house or to a safe box etc., by constantly changing the required input to gain access via a computer program. i.e. any password, code or encryption (by the user and administrator being in sync by any method and by any agreed upon method of calculating the required input at any given time).
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