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Ethan Arrowood
Ethan Arrowood

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What characters should be allowed in HTTP Basic Authentication userid and password

Based on this RFC2617 Specification, HTTP Basic Authentication userid can contain any TEXT excluding the symbol :. The password can contain any TEXT. Are these the only rules for Basic Authentication usernames and passwords?

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Alex Rudenko

As far as I know there are no other restrictions on HTTP level. But there can be restrictions in the user/password database where you register the username and the password. For example, if you use htpasswd as the database, it has a separate section regarding restrictions