A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

The question you're asking is designed to solicit opinions or best-practices on a particular topic, with the goal of reaching community consensus.
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For whether specific types of questions are allowed on this site or not.
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An answer at Cryptography Stack Exchange is something that is written in reply to a question.
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Site-specific or free-form close reasons that appear under the heading “off-topic”
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indicates a post used for submitting and voting on Community Promotion Ads, while the `advertising` tag is to be used for discussion on these ads and to handle “Crypto.SE self-…
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