NIST requests public comment on proposed SHA-3 cryptographic standard

May 30, 2014

The National Institute of Standards and Technology (NIST) has requested public comments on its newly proposed "Secure Hash Algorithm-3" (SHA-3) Standard, which is designed to protect the integrity of electronic messages.

The draft Federal Information Processing Standard Publication 202, SHA-3 Standard: Permutation-Based Hash and Extendable-Output Functions, specifies six permutation-based "sponge" functions based on Keccak, the winning algorithm selected from NIST's SHA-3 Cryptographic Hash Algorithm Competition. The functions include four fixed-length cryptographic hash functions, and two closely related "extendable-output" functions (XOFs). The four fixed-length hash functions provide alternatives to the SHA-2 family of hash functions specified in FIPS 180, Secure Hash Standard, which FIPS 202 will supplement. The XOFs can be specialized to hash functions, subject to additional security considerations, or used in a variety of other applications.

Cryptographic hash algorithms are a cornerstone of modern information security. They transform a digital message into a short "message digest" for use in digital signatures. Even a small change in the original message text creates a change in the digest, making it easier to detect accidental or intentional changes to the original message. Hash algorithms are used by many security applications, including random bit generation.

Explore further: NIST removes cryptography algorithm from random number generator recommendations

More information: Comments from the public on the draft of FIPS 202 are welcome for the next 90 days until August 26, 2014, after which NIST will incorporate them into the final version of the specification. The draft is available at csrc.nist.gov/publications/dra… 2/fips_202_draft.pdf. Comments may be sent to NIST either electronically or by mail. Full details appear in the Federal Register at federalregister.gov/a/2014-12336.

add to favorites email to friend print save as pdf

Related Stories

NIST proposes update to digital signature standard

Apr 18, 2012

The National Institute of Standards and Technology (NIST) has announced proposed changes to a standard that specifies how to implement digital signatures, which can be used to ensure the integrity of electronic documents, ...

Improving the security of Internet exchanges

Mar 20, 2009

(PhysOrg.com) -- TLS is the main protocol used today to secure exchanges over the Internet. The protocol has been subject to attacks in recent years, resulting in identity theft and data tampering. To address these problems, ...

New algorithm shakes up cryptography

May 16, 2014

Researchers at the Laboratoire Lorrain de Recherches en Informatique et ses Applications (CNRS/Université de Lorraine/Inria) and the Laboratoire d'Informatique de Paris 6 (CNRS/UPMC) have solved one aspect of the discrete ...

Recommended for you

Impoverished North Korea falls back on cyber weapons

15 hours ago

As one of the world's most impoverished powers, North Korea would struggle to match America's military or economic might, but appears to have settled on a relatively cheap method to torment its foe.

Five ways to make your email safer in case of a hack attack

16 hours ago

The Sony hack, the latest in a wave of company security breaches, exposed months of employee emails. Other hacks have given attackers access to sensitive information about a company and its customers, such as credit-card ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.