@misc{rfc4169, series = {Request for Comments}, number = 4169, howpublished = {RFC 4169}, publisher = {RFC Editor}, doi = {10.17487/RFC4169}, url = {https://www.rfc-editor.org/info/rfc4169}, author = {Mats Naslund and Jari Arkko and Vesa Torvinen}, title = {{Hypertext Transfer Protocol (HTTP) Digest Authentication Using Authentication and Key Agreement (AKA) Version-2}}, pagetotal = 13, year = 2005, month = nov, abstract = {HTTP Digest, as specified in RFC 2617, is known to be vulnerable to man-in-the-middle attacks if the client fails to authenticate the server in TLS, or if the same passwords are used for authentication in some other context without TLS. This is a general problem that exists not just with HTTP Digest, but also with other IETF protocols that use tunneled authentication. This document specifies version 2 of the HTTP Digest AKA algorithm (RFC 3310). This algorithm can be implemented in a way that it is resistant to the man-in-the-middle attack. This memo provides information for the Internet community.}, }