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Ciphers in Use in the Internet

Document Type Expired Internet-Draft (cfrg RG)
Expired & archived
Authors David McGrew , Sean Shen
Last updated 2023-04-11 (Latest revision 2012-10-22)
RFC stream Internet Research Task Force (IRTF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream IRTF state Dead IRTF Document
Consensus boilerplate Unknown
Document shepherd (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This note catalogs the ciphers in use on the Internet, to guide users and standards processes. It presents the security goals, security analysis and results, specification, intellectual property considerations, and publication date of each cipher. Background information and security guidance is provided as well.


David McGrew
Sean Shen

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