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Comment by rusbus

It occurred to be that with 2 factor authentication, the server needs to hold on the the secret key. If that is leaked, the 2 factor is useless.[1]

Contrast this with salted hashing where leaking the hash doesn't directly lead to compromise.

Could you use a blind signature to construct a rotating code 2 factor scheme where leaking the server credential doesn't lead to complete compromise?

https://rcoh.me/posts/two-factor-auth

parent rusbus 8 years ago

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