%% You should probably cite rfc8221 instead of this I-D. @techreport{ietf-ipsecme-rfc7321bis-06, number = {draft-ietf-ipsecme-rfc7321bis-06}, 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-ipsecme-rfc7321bis/06/}, author = {Paul Wouters and Daniel Migault and John Preuß Mattsson and Yoav Nir and Tero Kivinen}, title = {{Cryptographic Algorithm Implementation Requirements and Usage Guidance for Encapsulating Security Payload (ESP) and Authentication Header (AH)}}, pagetotal = 15, year = 2017, month = jun, day = 19, abstract = {This document replaces RFC 7321, "Cryptographic Algorithm Implementation Requirements and Usage Guidance for Encapsulating Security Payload (ESP) and Authentication Header (AH)". The goal of this document is to enable ESP and AH to benefit from cryptography that is up to date while making IPsec interoperable.}, }