[IPsec] I-D Action: draft-ietf-ipsecme-implicit-iv-09.txt

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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IP Security Maintenance and Extensions WG of the IETF.

        Title           : Implicit IV for Counter-based Ciphers in Encapsulating Security Payload (ESP)
        Authors         : Daniel Migault
                          Tobias Guggemos
                          Yoav Nir
	Filename        : draft-ietf-ipsecme-implicit-iv-09.txt
	Pages           : 8
	Date            : 2019-10-18

Abstract:
   Encapsulating Security Payload (ESP) sends an initialization vector
   (IV) in each packet.  The size of IV depends on the applied
   transform, being usually 8 or 16 octets for the transforms defined by
   the time this document is written.  Some algorithms such as AES-GCM,
   AES-CCM and ChaCha20-Poly1305 when used with IPsec, take the IV to
   generate a nonce that is used as an input parameter for encrypting
   and decrypting.  This IV must be unique but can be predictable.  As a
   result, the value provided in the ESP Sequence Number (SN) can be
   used instead to generate the nonce.  This avoids sending the IV
   itself, and saves in the case of AES-GCM, AES-CCM and
   ChaCha20-Poly1305 8 octets per packet.  This document describes how
   to do this.


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https://datatracker.ietf.org/doc/draft-ietf-ipsecme-implicit-iv/

There are also htmlized versions available at:
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https://datatracker.ietf.org/doc/html/draft-ietf-ipsecme-implicit-iv-09

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ipsecme-implicit-iv-09


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