[NEWBIE] Base64

[yarns]

Hi,

checked some ocx file with KANAL and got that information:
- BASE64 table
- BLOWFISH
- MD5
- PI fraction(NIMBUS/BLOWFISH)

How should i start to break it?
I'm newbie so please be gentle...
I do not expect that someone give me ready solve.
So thank for your prompts and link to articles which can help me.

Greetings