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13 June 2007


[Federal Register: June 12, 2007 (Volume 72, Number 112)]
[Notices]               
[Page 32282]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr12jn07-26]                         

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DEPARTMENT OF COMMERCE

National Institute of Standards and Technology

[Docket No.: 070413090-7092-01]

 
Announcing Draft Federal Information Processing Standard (FIPS) 
Publication 180-3, the Secure Hash Standard, and Request for Comments

AGENCY: National Institute of Standards and Technology, Commerce.

ACTION: Notice and request for comments.

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SUMMARY: This notice announces the Draft Federal Information Processing 
Standard (FIPS) 180-3, Secure Hash Standard (SHS), for public review 
and comment. The draft standard, designated ``Draft FIPS 180-3,'' is 
proposed to supersede FIPS 180-2. FIPS 180-2, Secure Hash Standard 
(SHS), August 2002, specifies secure hash algorithms (SHA) called SHA-
1, SHA-256, SHA-384 and SHA-512. These algorithms produce 160, 256, 
384, and 512-bit outputs, respectively, which are called message 
digests. An additional secure hash algorithm, called SHA-224, that 
produces a 224-bit output, is specified in Change Notice 1 to FIPS 180-
2, which was issued in 2004. Draft FIPS 180-3 specifies five secure 
hash algorithms: SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512. The 
proposed standard is available at http://csrc.nist.gov/publications/drafts.html
.

    Prior to the submission of this proposed standard to the Secretary 
of Commerce for review and approval, it is essential that consideration 
be given to the needs and views of the public, users, the information 
technology industry, and Federal, State, and local government 
organizations. The purpose of this notice is to solicit such views.

DATES: Comments must be received by September 10, 2007.

ADDRESSES: Written comments may be sent to: Chief, Computer Security 
Division, Information Technology Laboratory, Attention: Comments on 
Draft FIPS 180-3, 100 Bureau Drive--Stop 8930, National Institute of 
Standards and Technology, Gaithersburg, MD 20899-8930. Electronic 
comments may be sent to: Proposed180-3@nist.gov. The current FIPS 180-2 
and its proposed replacement, Draft FIPS 180-3, are available 
electronically at http://csrc.nist.gov/publications/index.html.

    Comments received in response to this notice will be published 
electronically at http://csrc.nist.gov/CryptoToolkit/tkhash.html.


FOR FURTHER INFORMATION CONTACT: For general information, contact: 
Elaine Barker, National Institute of Standards and Technology, Stop 
8930, Gaithersburg, MD 20899-8930, telephone: 301-975-2911, e-mail: 
elaine.barker@nist.gov. or via fax at 301-975-8670, or Quynh Dang, 

telephone: 301-975-3610, e-mail: quynh.dang@nist.gov.

SUPPLEMENTARY INFORMATION: The changes between FIPS 180-2 and FIPS 180-
3 are minor and are motivated by a desire to put informative 
information that is subject to change in a less formal publication that 
can be readily updated as necessary. FIPS 180-2 contained statements 
about the security strengths of the hash algorithms. However, the 
security strengths of the hashing algorithms, SHA-1, SHA-224, SHA-256, 
SHA-384 and SHA-512, might change due to future cryptanalysis; 
consequently, Draft FIPS 180-3 does not describe their security 
strengths. Instead, the security strengths will be specified in NIST 
Special Publications (SP) 800-57, Recommendation for Key Management, 
and discussed in NIST SP 800-107, Recommendation for Using Approved 
Hash Algorithms. These Special Publications will be periodically 
reviewed and updated if warranted by advances in the cryptanalysis of 
these hash algorithms. Examples of the implementation of these hash 
algorithms can be found at http://www.nist.gov/CryptoToolkitExamples NIST Special Publications are available at: http://csrc.nist.gov/.

.


    Authority: NIST activities to develop computer security 
standards to protect Federal sensitive (unclassified) systems are 
undertaken pursuant to specific responsibilities assigned to NIST by 
section 20 of the National Institute of Standards and Technology Act 
(5 U.S.C. 278g-3) as amended by section 303 of the Federal 
Information Security Management Act of 2002 (Pub. L. 107-347). 
Executive Order 12866: This notice has been determined not to be 
significant for the purpose of Executive Order 12866.

    Dated: June 5, 2007.
James M. Turner,
Deputy Director, NIST.
[FR Doc. E7-11326 Filed 6-11-07; 8:45 am]

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