A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the IP Security Protocol Working Group of the IETF. Title : Revised SA negotiation mode for ISAKMP/Oakley Author(s) : B. Patel, M. Jeronimo Filename : draft-ietf-ipsec-isakmp-SA-revised-00.txt Pages : 5 Date : 04-Dec-97 ISAKMP/OAKLEY [2][3] is the key management protocol defined by IPSEC working to be a framework for authentication, security association negotiation and key management. The protocol defines two phases whereby, in the phase 1, the peers are authenticates, the security association (SA) for ISAKMP/Oakley, and keying material is agreed upon by the peers to secure ISAKMP messages. The phase 2 is used to negotiate security association for security applications (e.g., IPSEC AH and ESP). When perfect forward secrecy is required, phase 2 is also used to exchange keying material for the application. However, when perfect forward secrecy is not a requirement, the keying material from the phase 1 is used to generate session keys for the secure communication applications. The proposal in this document is based on the observation that when perfect forward secrecy is not a requirement, if application specific SA was negotiated during phase 1, the application can start immediately after phase 1. The phase 2 can be used subsequently for key refresh on per need bases in the future. Therefore, this proposal reduces startup time for communication and improves the efficiency of the protocol. Remark: This document is NOT self-contained, it is intended as an addendum to [2][3]. Thus, it is best read in conjunction with [2][3]. Internet-Drafts are available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-ipsec-isakmp-SA-revised-00.txt". A URL for the Internet-Draft is: ftp://ds.internic.net/internet-drafts/draft-ietf-ipsec-isakmp-SA-revised-00.txt Internet-Drafts directories are located at: Africa: ftp.is.co.za Europe: ftp.nordu.net ftp.nis.garr.it Pacific Rim: munnari.oz.au US East Coast: ds.internic.net US West Coast: ftp.isi.edu Internet-Drafts are also available by mail. Send a message to: mailserv@ds.internic.net. In the body type: "FILE /internet-drafts/draft-ietf-ipsec-isakmp-SA-revised-00.txt". NOTE: The mail server at ds.internic.net can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft.
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