How To Crack A Tripcode

A trip code is a code used in anonymous threads like 4chan to determine whether or not the anonymous poster is authentic or not. It assigns a code to the end of your name. If you've ever wondered how software pirates can take software and crack it time and time again, even with security in place. WonderHowTo Null Byte.

1. Tripcode Generator
2. How To Crack A Tripcode

If you've ever wondered how software pirates can take software and crack it time and time again, even with security in place, this small series is for you. Even with today's most advanced methods of defeating piracy in place, it is still relatively easy to crack almost any program in the world. This is mainly due to computer processes' ability to be completely manipulated by an assembly debugger. Using this, you can completely bypass the registration process by making it skip the application's key code verification process without using a valid key. This works because assembly allows you to speak directly to the processor and force a skip over the registration process.

In this Null Byte, let's go over how cracking could work in practice by looking at an example program (a program that serves no purpose other than for me to hack). I will not be walking you through how to actually crack a legitimate program, because I can't just crack a program for demonstration, but the techniques applied to my examples should give you the foundation needed to create your own. At that point, it's a test of your morals if you want to use your knowledge for good or bad.

This repository was moved from https://github.com/meriken/merikens-tripcode-engine

'Meriken's Tripcode Engine' is a cross-platform application designed to generate custom/vanity tripcodes at maximum speed.It is arguably the fastest and most powerful program of its kind. It makes effective use of available computing power of CPUs and GPUs, and the user can specify flexible regex patterns for desired tripcodes. It features highly optimized, extensively parallelizedimplementations of bitslice DES and SHA-1 for OpenCL, AMD GCN, NVIDIA CUDA, and Intel SSE2/AVX/AVX2, as well as generic, architecture-agnostic implementations of these cryptographic functions in C++, allowing the application to run both on a high-end, multi-GPU system and Raspberry Pi.

Table of Contents

Downloads

Precompiled Binaries for Windows

• MerikensTripcodeEngine_3.2.12_English_Windows.zip¹
• MerikensTripcodeEngine_3.2.11_English_Windows.zip¹
• MerikensTripcodeEngine_3.2.0_English_Windows.zip²
• MerikensTripcodeEngine_2.1.2_English.zip²

1: NVIDIA Display Driver Version 362.61 or later is required if you are using an NVIDIA video card.
2: NVIDIA Display Driver Version 352.78 or later is required if you are using an NVIDIA video card.

Ubuntu Personal Package Archives

Arch Linux User Repository

Source Codes

Performance

Here are actual speeds the author achieved with this tripcode generator:

• AMD Radeon HD 7990 1022MH/s (descrypt; 1250mV +20% 1180MHz)
• NVIDIA GeForce GTX 980 Ti 996MH/s (descrypt; 110% +250MHz)
• AMD Radeon HD 290X 647M tripcode/s (descrypt; +100mV +50% 1074MHz)
• AMD Radeon HD 7970 408M tripcode/s (descrypt; 1000MHz)

Currently MTY CL is the only practical alternative to this program, and this program runs much faster than MTY CL in most cases as the folowing benchmarks show:

Donations

I would really appreciate donations as it is quite expensive to keep buying hardware for testing.I am also working on the English version of my tripcode search service and would like to add more servers.

• PayPal: meriken.ygch.net@gmail.com
• Bitcoin: 1BZrWADRhLr9DyQYYRJhRcmudE3vntT5em

Supported Video Cards

• AMD Radeon HD 5xxx or later
• Equivalent AMD APUs
• CUDA-enabled NVIDIA video card with compute capability of 2.0 or higher³

Note: Intel HD Graphics Series is not supported as it is too slow and older versions of Intel OpenCL drivers are too buggy.

3: CUDA GPUs

Windows

Building on Windows

You need the following tools to build Meriken's Tripcode Engine.

• Visual Studio 2015 Community
• CUDA Toolkit 8.0
• AMD APP SDK 3.0
• YASM 1.2.0 (Do not use YASM 1.3.0!)

I recommend that the source archive be extracted at the root of a drive and that the environment variable PreferredToolArchitecture be set to x64 on 64-bit operating systems. This program uses Boost 1.61.0 and Boost.Process 0.5. Make sure to extract BoostPackages/boost_1_61_0.7z and run BoostPackages/BuildBoostForVisualStudio.bat before building VisualStudio/MerikensTripcodeEngine.sln.

There are several configurations. If you are using a 64-bit operating system, you need to build both 32-bit and 64-bit executables. Please note that NVIDIA-optimized versions take extremely long time to build.

Dependencies

You need the following software installed in order to run the application:

• AMD Radeon Desktop Video Card Driver(if you are using an AMD graphics card)
• NVIDIA Display Driver Version 362.61 or later(if you are using an NVIDIA graphics card)

Usage

Specify search patterns in patterns.txt and run eitherMerikensTripcodeEngine.exe, if you are using a 32-bit operating system, orMerikensTripcodeEngine64.exe, if you are using a 64-bit operating system.Matching tripcodes will be displayed and saved in tripcodes.txt. See 'Example of 'patterns.txt' and 'Options' below.

Alternatively, you can extract one of the NVIDIA-optimized versions in MerikensTripcodeEngine64_NVIDIA.7z and use it instead if you are using an NVIDIA video card with the compute capability of 5.0 or greater on a 64-bit operating system. Please note that these binaries are exremely huge.

Linux, Mac OS X, and Other POSIX Systems

Building on POSIX Systems

You should be able to build and run this application on any POSIX-compliant operating systems. You need the following tools to build Meriken's Tripcode Engine.

• C++11-compliant compiler (g++-4.8 or later/clang++-3.5 or later; g++ is recommended.)
• OpenCL 1.2 SDK such as AMD APP SDK and NVIDIA CUDA Toolkit (if you are using an AMD/NVIDIA video card.)
• CUDA Toolkit 7.5+ (optional for optimal performance if you are using an NVIDIA video card.)

You should be able to build and install everything by running ./BuildAll.sh --install. You can specify the following options for BuildAll.sh:

• --with-toolset=gcc
• --with-toolset=clang
• --enable-cuda
• --disable-cuda
• --enable-opencl
• --disable-opencl
• --enable-cuda-des-multiple-kernels-mode
• --english-version
• --japanese-version
• --run-tests
• --install
• --rebuild

Please note that NVIDIA-optimized versions (--enable-cuda-des-multiple-kernels-mode) take extremely long time to build.

Installation Instructions for Ubuntu 16.04 LTS

The easiest way is to download the application from my PPA without CUDA support:

If you are using the 64-bit version of the OS, you can use the CUDA-compatible package instead:

For optimal performance with NVIDIA video cards, however, you need to build the application yourself.

Unfortunately, AMD Proprietary (fglrx) Driver is not available for Ubuntu 16.04 LTS, so you cannot use AMD video cards with this application. If you would like to use an AMD graphics card, please stick to Ubuntu 14.04 LTS.

Installation Instructions for Ubuntu 14.04 LTS

The only differences from Ubuntu 16.04 LTS are that the merikens-tripcode-engine-cuda package is not available and that you have to install CUDA Toolkit 7.5+ manually if you want to build the application with CUDA support.

Build Instructions for Arch Linux 201604

You can download the application from the AUR. OpenCL support is enabled by default, but you need to install CUDA Toolkit 7.5 or later manually for CUDA support.

Build Instructions for FreeBSD 10.3

You need to build the application with GCC.

Build Instructions for Mac OS X 10.10

Please install Homebrew first if you want to follow these instructions.

Dependencies

You need the following software installed in order to run the application:

• AMD Proprietary Linux Graphics Driver (if you are using an AMD graphics card)
• NVIDIA Display Driver Version 352.78 or later (if you are using an NVIDIA graphics card)

Usage

Specify search patterns in patterns.txt and run MerikensTripcodeEngine.Matching tripcodes will be displayed and saved in tripcodes.txt.See 'Example of 'patterns.txt' and 'Options' below.

Example of 'patterns.txt'

Options

-g : Use GPUs as search devices. (This option can be used in combination with '-c'.)

-d [device number] : Specify a GPU to use.

-c : Use CPUs as search devices. (This option can be used in combination with '-g'.)

-l [length of tripcodes] : Specify either 10 or 12. (Please note that you can use 12 character tripcodes only at 2ch.net.)

Tripcode Generator

-x [number of blocks/SM] : Specify the number of blocks per SM (1 <= n <= 256) for CUDA devices.

-t [number of threads] : Specify the number of CPU search threads.

How To Crack A Tripcode

-o [output file] : Specify an output file.

-f [input file] : Specify an input file.

--use-one-and-two-byte-characters-for-keys : Use Shift-JIS characters for keys.

--disable-gcn-assembler : Disable GCN assembler and use OpenCL kernels instead.

Support Threads

I occasionaly create support threads for this program on 4chan to receive direct feedback from its users. The following are archives of the past support threads:

Source Code

The source code is hosted on GitHub:

Miscellaneous Notes

Please feel free to contact the author at meriken.ygch.net@gmail.com for feedback, bug reports, suggestions, etc.

'Meriken's Tripcode Engine' is part of the GUI-based, network-capable Meriken's Tripcode Generator, which is intended primarily for users of 2ch.net in Japan. If Japanese does not discourage you, check out the original application as well as Meriken's Tripcode Yggdrasil, a web-based distributed tripcode generation service.

License

Meriken's Tripcode Engine is free software: you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation, either version 3 of the License, or(at your option) any later version. Cartier serial number.

Meriken's Tripcode Engine is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See theGNU General Public License for more details.

You should have received a copy of the GNU General Public Licensealong with Meriken's Tripcode Engine. If not, see http://www.gnu.org/licenses/.

Copyright © 2016 ◆/Meriken/.