blowfish would be a nice addition, but I think the world is still governed by stupid export restrictions on such things as encryption and useful information.
I've seen only one blowfish DLL, and it's nice, but I don't like the fact that it chooses base64 (ie MIME/$encode) for the string output, instead of hexidecimal as most encryption and hash routines will output in a text environment.
If blowfish is ever added to mIRC, please use hex or add the option of dumping to a &binvar.
- Raccoon