A quick implementation of an encrypter which can't be cracked by frequency analysis.

The decrypter for the simple encrypter I posted earlier - Takes the encrypted text from a text file - "encrypt.txt" which the encrypter automatically writes to.

A simple algorithm to convert decimal numbers to binary; pointless since most languages have an inbuilt function but was used for learning about algorithm design.

This php script provides a unique random key with 32 characters and can be used to avoid the system to pass some primary keys across the url, by example.

This is a function which generates random letters for password. Programers can use this at Microsoft Excel and so on.