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A crackme is a small
A keygenme is specifically designed for the reverser to not only identify the protection algorithm used in the application but also create a small key generator ( keygen) in the programming language of their choice.
Most keygenmes, when properly manipulated, can be made self-keygenning. For example, during validation, they might generate the correct key internally and compare it to the user's input. This allows the key generation algorithm to be easily replicated.
Anti-debugging and anti-disassembly routines are often used to confuse debuggers or render disassembly output useless. Code obfuscation is also used to further complicate reverse engineering.
Crackmy.app
- Holds a variety of user-submitted crackmes. Users can submit solutions to the crackmes to strengthen the learning process. Includes reverse engineering resources and tools.
Crackmes.one
- Includes user-submitted crackmes for Windows and Linux, in languages such as C++ and Java. *
computer program
A computer program is a sequence or set of instructions in a programming language for a computer to Execution (computing), execute. It is one component of software, which also includes software documentation, documentation and other intangibl ...
designed to test a programmer's reverse engineering
Reverse engineering (also known as backwards engineering or back engineering) is a process or method through which one attempts to understand through deductive reasoning how a previously made device, process, system, or piece of software accompl ...
skills. Crackmes are made as a legal way to crack software, since no intellectual property
Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The best-known types are patents, co ...
is being infringed.
Crackmes often incorporate protection schemes and algorithms similar to those used in proprietary software. However, they can sometimes be more challenging because they may use advanced packing or protection techniques, making the underlying algorithm harder to analyze and modify.
Keygenme
A keygenme is specifically designed for the reverser to not only identify the protection algorithm used in the application but also create a small key generator ( keygen) in the programming language of their choice.
Most keygenmes, when properly manipulated, can be made self-keygenning. For example, during validation, they might generate the correct key internally and compare it to the user's input. This allows the key generation algorithm to be easily replicated.
Anti-debugging and anti-disassembly routines are often used to confuse debuggers or render disassembly output useless. Code obfuscation is also used to further complicate reverse engineering.
References
External links
Crackmy.app
- Holds a variety of user-submitted crackmes. Users can submit solutions to the crackmes to strengthen the learning process. Includes reverse engineering resources and tools.
Crackmes.one
- Includes user-submitted crackmes for Windows and Linux, in languages such as C++ and Java. *
X64dbg
x64dbg is a free and open-source debugging software available on Windows
Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Micros ...
- A debugger used both by beginners and experienced people.
Computer security
Software cracking
Reverse engineering
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