%% You should probably cite rfc9447 instead of this I-D. @techreport{ietf-acme-authority-token-02, number = {draft-ietf-acme-authority-token-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-acme-authority-token/02/}, author = {Jon Peterson and Mary Barnes and David Hancock and Chris Wendt}, title = {{ACME Challenges Using an Authority Token}}, pagetotal = 12, year = 2019, month = mar, day = 11, abstract = {Some proposed extensions to the Automated Certificate Management Environment (ACME) rely on proving eligibility for certificates through consulting an external authority that issues a token according to a particular policy. This document specifies a generic Authority Token challenge for ACME which supports subtype claims for different identifiers or namespaces that can be defined separately for specific applications.}, }