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Keygenning

47 files

  1. Keygenning Easy KeygenMe #1

    By Teddy Rogers

    A tutorial showing how to keygen the Dustyh1981 Easy KeygenMe #1.

    395 downloads

    0 comments

    Updated

  2. Kaos Toy Project and Algebraic Cryptanalysis

    By Teddy Rogers

    In "Toy Project" Kao presents us with a tiny, yet perverse, piece of code to reverse. Given two 32-byte strings A and B, and the 32-bit integers x and y that were used to produce B from A with the following function:
    void expand(u8 B[32], const u8 A[32], u32 x, u32 y) { u32 i; for(i=0; i < 32; ++i) { out[i] = (in[i] -x) ^ y; x = ROL(x, 1); y = ROL(y, 1); } } Simple enough. How do we solve it?

    106 downloads

    0 comments

    Submitted

  3. A Solution for Reverend - KeygenMe #2

    By Teddy Rogers

    This crackme is very interesting. It includes among other a virtual machine with registers from 32 bit to 128 bit, algorithm obfuscation, Taylor expansions. It is really worth having a look at it.

    235 downloads

    0 comments

    Submitted

  4. An Exercise in RSA Reversal (RSA128 + MD5)

    By Teddy Rogers

    Hi and welcome to another Office Jesus tutorial. I just want to go ahead and say that if you are an ABSOLUTE beginner with no experience debugging or coding (Delphi in this case), you should NOT read this tutorial! I recommend watching Lena151's tutorials; they can be found at www.tuts4you.com. In this tutorial we will be exploring a simple serial checking routine that uses the MD5 hash and the RSA algorithm. I will not go into detail on how MD5 works or how it could be implemented. For more reading about MD5, check out the MD5 tutorials by Encrypto and ARTeam. I will try to explain RSA to the best of my ability. For further reading on RSA, visit RSA Wiki.

    268 downloads

    0 comments

    Submitted

  5. Android Static Analysis and Keygenning

    By Teddy Rogers

    In this video I will show you how to penetrate an Android application and static analyze *.apk files for keygenning.

    183 downloads

    0 comments

    Submitted

  6. Auto Keygen - KeygenMe #2 by KTo

    By Teddy Rogers

    A tutorial on creating an automated keygen.

    260 downloads

    0 comments

    Submitted

  7. Auto Keygen - LaFarge CrackMe #2

    By Teddy Rogers

    A video tutorial on auto keygenning LaFarge CrackMe #2.

    316 downloads

    0 comments

    Submitted

  8. Auto Keygen - Real Keygen by Magma

    By Teddy Rogers

    A tutorial on creating an automated keygen.

    229 downloads

    0 comments

    Submitted

  9. Coils Simple Keygenning Tutorial

    By Teddy Rogers

    Aim: To code a small keygen using WinAPI in C
    Target: TDC’s KeyGenMe (CrackME #8)

    What we need :
    : basic knowledge in C coding
    : familiarity with ASM instructions
    : a disassembler (IDA)
    : a C compiler (VisualStudio2005)

    This tutorial has three parts:

    Part I: Basic Information
    Part II: Reversing the Keygenme and
    Part III: Making the keygen

    Contents of this package : [ please read the pdfs in this order ]
    begin.pdf
    part1.pdf
    part2.pdf
    part3.pdf
    finale.pdf
    keygen.cpp
    keygen.rc
    resource.h
    tdckeygenme.exe

    183 downloads

    0 comments

    Submitted

  10. Easy KeygenMe #1 by qpt^j Explained

    By Teddy Rogers

    Here is another tutorial for newbies on Easy KeygenMe #1 by qpt^J. This video is about serial fishing but the algorithm is also explained, so with a use of little brain you can also code it's keygen.

    150 downloads

    0 comments

    Submitted

  11. A Solution for lord_Phoenix - Crackme #9

    By Teddy Rogers

    The keygen includes a solver for Euler's tour, also used in WiteG's crackme 3. I hope it will interest you.

    114 downloads

    0 comments

    Submitted

  12. A Short Solution for Cyclops - CHAKRAVYUHA

    By Teddy Rogers

    It uses a nice virtual machine to process the serial verification. The routine is then rather simple. Good crackme.

    106 downloads

    0 comments

    Submitted

  13. Keygenning Easy KeygenMe #1

    By Teddy Rogers

    A tutorial showing how to keygen the GioTiN Easy KeygenMe #1.

    126 downloads

    0 comments

    Submitted

  14. Keygenning Encrypto KeygenMe #5

    By Teddy Rogers

    A tutorial on how to reverse a challenge from an old pal Encrypto that I have found lately and I have never reversed until now. The ultimate goal of the challenge is to code a standalone keygen and this is what I have done. The tutorial is a little bit long since it is provided with details so anyone can watch and give it a try.

    If you get any kind of problems will be happy to help!

    128 downloads

    0 comments

    Submitted

  15. Keygenning Kurapica CrackMe #15

    By Teddy Rogers

    A Shockwave Flash movie tutorial showing a method of keygenning Kurapica's CrackMe #15. It includes the source code for the keygen.

    119 downloads

    0 comments

    Submitted

  16. Keygenning Kurapica KeygenMe 2011

    By Teddy Rogers

    Video tutorial on keygenning Kurapica KeygenMe 2011.

    106 downloads

    0 comments

    Submitted

  17. Keygenning Mudlords KeygenMe #1

    By Teddy Rogers

    Here is my third tutorial on keygenning and my second tutorial about RSA. I hope it will be useful to you.

    Protection: RSA “Modified SHA1“ Custom
    Tools: IDA “WinASM“ ImportREC
    Difficulty: 2/10 (not for pure beginners)

    109 downloads

    0 comments

    Submitted

  18. Keygenning P-Code DrPepUr1

    By Teddy Rogers

    Welcome to my second tutorial. Today we will be working on a crackme I wrote a few months back. It is wrote in vb6 and compiled to P-Code.

    I first became interested in P-Code after downloading a project off PSC and the author claimed it was uncrackable. I gave him a fair run just opened the project long enough to compile it. I loaded it up in Olly and after a few minutes thought it was hopeless.

    I then decided to write a little crackme and compile it to P-Code so I could play around with it and have some idea of what was going on.

    This might not be the right way but it works so follow along...

    112 downloads

    0 comments

    Submitted

  19. Keygenning pDriLl CrackMe #1

    By Teddy Rogers

    In this tutorial I will show you how we can keygen this easy keygenme from pDriLl.

    110 downloads

    0 comments

    Submitted

  20. Keygenning pDriLl CrackMe #2

    By Teddy Rogers

    Here is my tutorial for pDriLl's KeygenMe#2. It is using RSA, I hope it will be useful for you and of course this tutorial is not for complete newbies.

    105 downloads

    0 comments

    Submitted

  21. Keygenning Phoenix-Dev Shrink

    By Teddy Rogers

    This tutorial is for the experienced reverse engineer and not a beginners help. I'm not going deep into everything, but you should be able to follow my ideas. It took me some time to understand how this protection works and I had to invent some tricks to solve it. You might have to Google some topics like RSA or modular inverse to understand the math behind it. I'm also assuming, that you know how to use the tools that I'm going to use.

    I hope you learn something from this tutorial and who knows, I can get you interested in iPhone reversing.

    103 downloads

    0 comments

    Submitted

  22. Keygenning Python KeygenMe

    By Teddy Rogers

    Keygenning in Python language.

    126 downloads

    0 comments

    Submitted

  23. Keygenning ScrewMe #1

    By Teddy Rogers

    A Shockwave Flash movie showing a method of keygenning, with Dev C++ with WinAsm + OllyDBG, Dynasty's ScrewMe #1.

    112 downloads

    0 comments

    Submitted

  24. Keygenning TccT KeygenMe #2

    By Teddy Rogers

    A quick video tutorial on keygenning TccT KeygenMe #2 by Tarequl.

    108 downloads

    0 comments

    Submitted

  25. Keygenning Encrypto KeygenMe #4

    By Teddy Rogers

    A video tutorial on keygenning Encrypto's KeygenMe #4.

    119 downloads

    0 comments

    Submitted

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