Justin Richer

Justin Richer is a security architect, software engineer, standards editor, and systems designer with over two decades of industry experience. He is the lead author of OAuth2 In Action from Manning Publications (with Antonio Sanso) and contributor to OAuth 2.0 and OpenID Connect. Justin is the editor of the OAuth extensions for dynamic client registration (RFC 7591, RFC 7592) and token introspection (RFC 7662), and authored Vectors of Trust (RFC 8485). Justin is a co-author of the US federal Digital Identity Guidelines (NIST SP 800-63) and contributing editor to UMA 2.0. He is the editor for GNAP and HTTP Message Signatures in the IETF. An ardent proponent of open standards and open source, he believes in solving hard problems with the right solution, even if that solution still needs to be invented.