One draft I'm working on references some standard NIST cryptographic documents. (RFCs don't include everything we need.) I need to check some details therein. Unfortunately the current US government shutdown has taken NIST's website, including those documents, offline. And (not considering this possibility) I didn't download copies of them. Any link to where copies of such documents are kept would be useful. (Of course I haven't been able to check the copyright on them to know if that's legal, so there may be no appropriate site.) Otherwise, consider the above an observation. -- Christopher Dearlove Senior Principal Engineer, Communications Group Communications, Networks and Image Analysis Capability BAE Systems Advanced Technology Centre West Hanningfield Road, Great Baddow, Chelmsford, CM2 8HN, UK Tel: +44 1245 242194 | Fax: +44 1245 242124 chris.dearlove@xxxxxxxxxxxxxx | http://www.baesystems.com BAE Systems (Operations) Limited Registered Office: Warwick House, PO Box 87, Farnborough Aerospace Centre, Farnborough, Hants, GU14 6YU, UK Registered in England & Wales No: 1996687 ******************************************************************** This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ********************************************************************