Back in the Day... Encryption...

When i was into vb back in the day i created a lil app that might come in handy to ya'll... It's a lossless data
encrytor. Small files only! It encrypts file by shuffeling their binary data in a specific sequence, the sequence is the password ofcourse. And u need the pass to set it back...

note: the tool was meant mostly for encrypting txt files but it can encrypt anything. Don't ask about the size limit cuz it varies. And be carefull not to decrypt files that arent encrypted! and always enter the right password...

have fun...

http://www.balpoint.com/files/BinaryEncryptor.exe

How safe do you think this is? Using simple passwords as a test there seems to be a very obvious pattern... for instance, if the password contains all the same letters (eg. aa) then the original data can be decrypted by simply looping through and subtracting 1 byte at a time until the data is valid. Using more complex passwords improves the protection but there is still a noticable pattern.