Mechiel Lukkien c57aeac7f0 prevent unicode-confusion in password by applying PRECIS, and username/email address by applying unicode NFC normalization ... an é (e with accent) can also be written as e+\u0301. the first form is NFC, the second NFD. when logging in, we transform usernames (email addresses) to NFC. so both forms will be accepted. if a client is using NFD, they can log in too. for passwords, we apply the PRECIS "opaquestring", which (despite the name) transforms the value too: unicode spaces are replaced with ascii spaces. the string is also normalized to NFC. PRECIS may reject confusing passwords when you set a password.		2024-03-09 09:20:29 +01:00
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sasl.go	prevent unicode-confusion in password by applying PRECIS, and username/email address by applying unicode NFC normalization	2024-03-09 09:20:29 +01:00