!!! Overview [{$pagename}] is a [RFC] describing US [Secure Hash Algorithms] ([SHA] and SHA-based [HMAC] and [HKDF]) [We refer you to the full text|RFC:6234|target='_blank'].[{$pagename}] makes [Open Source] code performing these [SHA] [hash] functions conveniently available to the Internet community Much of the text herein was adapted by the authors from [FIPS 180]-2 !! More Information There might be more information for this subject on one of the following: [{ReferringPagesPlugin before='*' after='\n' }]