This past spring, the American Association of Law Librarians issued its report on “State-by-State Report on Authentication of Online Legal Resources.” For more information, see the April 5, 2007, post entitled “AALL Report on the Authentication of State Primary Legal Resources.”
As a step toward addressing the issue of authentication raised by the AALL report, Utah’s Division of Administrative Rules has added Message-Digest algorithm 5 (MD5) authentication to publication files. An MD5 hash is, in essence, a signature for a file. A user can confirm the integrity of a specific file the user downloads by comparing the MD5 hash provided by the Division with one that the user generates. More information about Utah’s response is posted at http://rulesnews.utah.gov/archives/000667.html.