MD5 lookup table

[KoBE]

Thanks. I do understand it's not a decryption, and how many entries would have to be added. To be honest, I just wanted to work out how the MD5 "decryption" websites worked.

Edit: misread your response, seems you don't need an explanation. Someone else my find some use in this.

Simple practice:
password -> 5f4dcc3b5aa765d61d8327deb882cf99

the hashed value is then stored in the database, if anyone comes along next and what's to know what: 5f4dcc3b5aa765d61d8327deb882cf99 is, your program will lookup the md5 and return the plain text version. But this will only work if you have computed the hash already.

Advanced practice:
Do a google search on Rainbow Tables.