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.

Special Publication (SP) 800-168, Approximate Matching: Definition and Terminology
January 27, 2014

NIST requests comments on Draft Special Publication (SP) 800-168, Approximate Matching: Definition and Terminology. SP 800-168 contains a definition for approximate matching including requirements and considerations for testing. Approximate matching is an emerging technology for identify similarities between two digital artifact. It is used to find objects that resemble each other to support security monitoring, digital forensics and other applications.

Created December 21, 2016, Updated June 22, 2020