Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Submissions Requested for Crypto Hash Workshop

The National Institute of Standards and Technology (NIST) is soliciting papers, presentations and other submissions for a workshop on Oct. 31-Nov. 1, 2005, in Gaithersburg, Md., to discuss a vulnerability in a NIST cryptographic standard known as SHA-1 (Secure Hash Standard). Submission topics include security status of approved hashes, short-term actions and potential replacement options.

SHA-1 is used widely by the federal government and others in cryptographic processes such as digital signatures and message authentication. In February, a team of researchers announced that they had discovered a way to "break" the SHA-1 algorithm. Submissions are due by July 15 and should be sent to hash-function [at] (hash-function[at]nist[dot]gov). For more information, see

Released June 30, 2005, Updated February 6, 2023