Java Security

Hello,

On IRC it is pretty common these days to use blowfish for encryption. Common used libraries for this are the Fish plugin for MIRC (http://fish.sekure.us/) and the blowfish module from eggdrop (http://www.eggheads.org/).

I have build a Java IRC bot and I try to let it understand blowfish. First of all on IRC some weird BASE64 encoding is used (A-Z, a-z, "/" and "."). I'm kind of an Cryptography noob and can't read C properly, so the sources of eggdrop didn't helped me that much. Is there anyone that can enlighten me

Second thing is that BlowFish in Java has many features. I didn't find any good explanation about which features they use on IRC. Code below is used in lots of classes but does it work for irc messages?

KeyGenerator kgen = KeyGenerator.getInstance("Blowfish");
kgen.init(448);
SecretKey skey = kgen.generateKey();

byte[] raw = key.getBytes();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "Blowfish");

Cipher cipher = Cipher.getInstance("Blowfish/ECB/PKCS5Padding");

Please help me out. Thanks in advance.