Michael Ko: | I'm finishing up on a stegography(sp?) program that uses GIF and WAV | files. It was inspired by Cypherella's Stego program for the Mac. | In the program, I incorporate the filename, length, then data to the | GIF or WAV file. RIght now, I just use a basic secrey key encryption. | It will XOR each data byte with a byte in the password and repeat this. | Is there a better way to encrypt the data that is just has easy to code? A filename and length give away the fact that something is hidden. If you only hide encrypted data, and no plaintext of any sort, then the file can not be automatically detected; it can ony be seen by someone who can decrypt it. There are lots of real encryption schemes beyond XOR out there. Take a look at the source archive in goblin.dsi.unimi.it Adam -- Adam Shostack adam@bwh.harvard.edu Politics. From the greek "poly," meaning many, and ticks, a small, annoying bloodsucker.