Away from weakest to help you most effective, they are obvious text message, Vigenere encryption, and you will MD5 hash algorithm. Clear-text message passwords is depicted from inside the peoples-readable format. The Vigenere and you will MD5 security steps obscure passwords, but for every single features its own pros and cons.
Vigenere Instead of MD5
An element of the difference between Vigenere and you will MD5 would be the fact Vigenere is reversible, while you are MD5 is not.