Add support for SCRAM-SHA-256 authentication. #437
Merged
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SCRAM-SHA-256 authentication was introduced in PostgreSQL 10 as a better way
for handling password based authentication.
This implementation follows the guidance provided in the documentation, i.e.
https://www.postgresql.org/docs/current/sasl-authentication.html#SASL-SCRAM-SHA-256
A detailed, high-level explanation for how it works is provided in the definition for the SCRAMAuthentication class.
This implementation does not support channel binding (added in PostgreSQL 11) as there is still some ongoing discussion in the community for how it should be handled.
This should satisfy the requirements for #314