Version 3.1.0

Npm package ready

Version 3.0.0

Consolidated all the hash functions into a single class.

Version 2.2 (2009-06-30) Paul Johnston

• More algorithms - RIPEMD-160, SHA-256 and SHA-512 are now supported, based on contributed code. Support for MD4 has been dropped.
• Compressed versions of the scripts are available, processed by YUI Compressor. sha1-min.js is less than 3KB.
• Improved Unicode support. By default, the input string is now encoded as utf-8, before being hashed, which is what most people want. It is still possible to use utf-16, but the chrsz configuration variable is gone.
• Arbitrary output encoding. You can specify a string of characters to use for output encoding; the string length does not need to be a power of two. This is helpful for password makers, which want to use as much unpredictability as possible, in a short password.
• Bug fixes:
  • The scripts now work correctly if immediate code is not executed, so they support some unusual platforms, including GreaseMonkey.
  • rstr2binl now preinitialises the array with zeros, to work around bugs in some browsers.
  • md5_vm_test now works if hex_case is set to 1

Version 2.1 (2002-12-15) Paul Johnston

• Binary string output
• Backward-compatibility with version 1 is removed.
• Base-64 output
• Unicode input. Note: this uses utf-16 encoding, which is rarely what is desired. Version 2.2 has improved Unicode support, with utf-8 encoding.
• HMAC - keyed hashing
• New function interface, to support the new features.

Version 1.1 (2001-06-15) Paul Johnston

• Renamed the add function to safe_add because add is a reserved word in ActionScript. Reported by Amanuel Workneh.
• All variables are now prefixed with var to make them local. Suggested by Richard Mitchell and Ian Richardson.
• The code now works in IE for Macintosh, thanks to Greg Holt and Andrew Kepert.
• The code now returns a lower-case hex string, like most MD5 functions. Thanks to Brian Lozier for noticing this.
• Code changed to use charCodeAt function instead of the dodgy sAscii variable. Thanks to Erik Johnson.
• Calls to Math.pow removed, now I've discovered the >>> operator.
• The code now works in Opera, because Peter Valach fixed a precedence problem.