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There are formalized approaches to keeping the server from knowing the password at any time: https://en.m.wikipedia.org/wiki/Password-authenticated_key_a...

SRP is one such system: https://en.m.wikipedia.org/wiki/Secure_Remote_Password_proto...



The various ZKP approaches are considerably more complex to implement properly vs the trivial approach of a client side hash. There are obvious tradeoffs, of course, but I wouldn't fault someone for an additional hash step on the client.




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