I've been so confused about the hashing of the password and salt. Fortunately I posted on Reddit last night to the crypto subreddit and someone answered with a clear answer. I had misunderstood what was needed. I had assumed that I needed the DES encryption scheme, but I was corrected to using the Unix crypt(3) hash function. So now I have a working tripcode generator. I think the next step forward is to make a custom string class. I'll post the source code on the forums. This is not really efficient since I'm using the C++ string class. Also I'm changing milestones.

Milestones

• Correctly generate salt from plaintext - [Done]
• Correctly generate tripcode from given plaintext - [Done]
• Find or implement efficient string class
• Implement key generator
• Refine crypt.c to use Bitslicing
• Refine crypt.c to use bit slicing on CUDA
• Implement GUI user interface

0.1 Purpose

TripCUDA is a project I am working on that is meant to generate tripcodes, search the generated tripcode for a substring specified by the user and report the password and tripcode (or tripcodes) to the user.

0.2 What is a Tripcode?

A tripcode is a way of authentication that does not require registration. It is used mainly on anonymous message boards and imageboars such as 2channel and 4chan as well as various message boards. A tripcode is a hashed password by which a person can be identified by others and requires no registration. The picture above shows a password (#S~3hsEQ|) and it's associated tripcode (!PedIa.Dbk.).

0.3 Milestones

• Correctly generate salt from plaintext key - [Done]
• Implement bitslice DES (CPU)
• Find or implement efficient string class
• Implement key generator
• Implement bitslice DES (GPU)
• Implement GUI user interface