The ESP SKIPJACK-CBC Cipher Algorithm With Implicit IV

Document Type Expired Internet-Draft (ipsec WG)
Author Sandra MacGregor 
Last updated 1999-05-24
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This protocol describes the SKIPJACK symmetric block cipher algorithm. The SKIPJACK algorithm is a confidentiality mechanism used, with other mechanisms, to provide secure messaging. This protocol describes the use of SKIPJACK in Cipher Block Chaining (CBC) mode with an Implicit IV within the context of the IP Encapsulating Security Payload [ESP].


Sandra MacGregor (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)