If you want to know everything there is to know about MD5 cryptography, you should visit Md5security.com.
On the site, you will be able to read up on many functions and initialization vectors that will allow you to make your computer much more secure. The information on the site is really complete and might prove difficult to understand to those of us who do not know much about programming in general. If you do know about programming and cryptography, then you should have no problem learning more through the site. The site has other sections that tell the reader about its history, who the authors are, and other things that will allow you to get to know the people who write on the website a little bit more. The Salt Cryptography section has information on those random bits used as one of the inputs to a key derivation function. 
