白名單

白名单是一种机制和許可列表，納入白名單的实体被賦予一定的特权、服务許可和權限。白名單以外的實體則不擁有權限。許多信息技術領域（例如電子郵件篩檢等）都會用到白名單機制[1]。

参考文献
  1. e.g. Kindle users control the whitelist for email access. Besides Amazon itself, only e-mail addresses whitelisted by the device's registered owner can send content ("personal documents") to that device.
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