Get same private key for one email for any login methods

I want to have users get one private key for one email, irrespective of their login method. Someone suggested me to have custom verifier and have email as a verifier field. But I am not sure how to do it. Can anyone explain this in detail. Thanks in advance!

Originally posted by: yash-2523

Check the discussion at:

Hey @yash-2523

This could be achieved by aggregating the verifiers.
Please take a look at

Originally posted by: shahbaz17