NSA's Cryptographic Message Syntax (CMS) Key Management Attributes

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Document Type Expired Internet-Draft (individual)
Authors Paul Timmel  , Russ Housley  , Sean Turner 
Last updated 2015-05-14 (latest revision 2014-11-10)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines key management attributes used by the National Security Agency (NSA). The attributes can appear in asymmetric and/or symmetric key packages as well as the Cryptographic Message Syntax (CMS) content types that subsequently envelope the key packages.


Paul Timmel (pstimme@tycho.ncsc.mil)
Russ Housley (housley@vigilsec.com)
Sean Turner (turners@ieca.com)

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