%% You should probably cite draft-ietf-kitten-scram-2fa instead of this I-D. @techreport{melnikov-scram-2fa-03, number = {draft-melnikov-scram-2fa-03}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-melnikov-scram-2fa/03/}, author = {Alexey Melnikov}, title = {{Extensions to Salted Challenge Response (SCRAM) for 2 factor authentication}}, pagetotal = 7, year = 2021, month = may, day = 24, abstract = {This specification describes an extension to family of Simple Authentication and Security Layer (SASL; RFC 4422) authentication mechanisms called the Salted Challenge Response Authentication Mechanism (SCRAM), which provides support for 2 factor authentication. This specification also gives an example of how TOTP (RFC 6238) can be used as the second factor.}, }