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Recommended Usages of SHA-512/224, SHA-512/256

Document Type Expired Internet-Draft (individual)
Expired & archived
Author Sean Turner
Last updated 2013-11-24 (Latest revision 2013-05-23)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document provides recommendations on the use of the secure hash functions SHA-512/224 and SHA-512/256 specified in FIPS 180. SHA- 512/224 and SHA-512/256 are SHA-512-based and truncated to match the output size of SHA-224 and SHA-256. On 64-bit platforms, the SHA-512- truncated algorithms provide better performance than their comparably sized SHA-224 and SHA-256 variants.


Sean Turner

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