MD5 CFB

md5-cfb is a small script I wrote that does encryption by running data through MD5 once for each block with CFB, a cipher mode of operation. The key is XOR'd into the the input of each MD5. You can download it here.

This isn't meant to be a serious utility in any way. I just wanted to see what such a utility would be like. It's quite slow compared to real encryption algorithms.