%% You should probably cite rfc7298 instead of this I-D. @techreport{ovsienko-babel-hmac-authentication-09, number = {draft-ovsienko-babel-hmac-authentication-09}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ovsienko-babel-hmac-authentication/09/}, author = {Denis Ovsienko}, title = {{Babel Hashed Message Authentication Code (HMAC) Cryptographic Authentication}}, pagetotal = 55, year = 2014, month = apr, day = 18, abstract = {This document describes a cryptographic authentication mechanism for the Babel routing protocol. This document updates RFC 6126. The mechanism allocates two new TLV types for the authentication data, uses Hashed Message Authentication Code (HMAC), and is both optional and backward compatible.}, }