crackmes | Some CrackMe codes for Linux x86/x86_64 | Reverse Engineering library

by NoraCodes C Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | crackmes Summary

crackmes is a C library typically used in Utilities, Reverse Engineering applications. crackmes has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

These are some crackmes. I wrote them to familiarize myself with reverse engineering, and to show off specific concepts and techniques. I wrote a tutorial about these crackmes as well. To work with them, run make where is one of crackme01, crackme02, etc. Figure out how to make the crackme exit with the status code 0. Don't ruin it for yourself by reading the source code! Enjoy.

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Quality

Security

License

Reuse

Support

crackmes has a low active ecosystem.

It has 302 star(s) with 57 fork(s). There are 11 watchers for this library.

It had no major release in the last 6 months.

There are 3 open issues and 9 have been closed. On average issues are closed in 5 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of crackmes is current.

Quality

crackmes has no bugs reported.

Security

crackmes has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

crackmes does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

crackmes releases are not available. You will need to build from source code and install.

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crackmes Key Features

No Key Features are available at this moment for crackmes.

crackmes Examples and Code Snippets

No Code Snippets are available at this moment for crackmes.

Community Discussions

Trending Discussions on crackmes

How do Keygens function?

QUESTION

How do Keygens function?

Asked 2018-Oct-16 at 23:26

A keying algorithm used to register software and games. Let's say there is no server-side verification to get in the way...

I would like to know how these can be replicated in C Code so I can have a better understanding of creating my own keygens.

I'm currently a student learning Reverse Engineering and I am trying to reverse crackmes in order to build a keygen for the software.

What are the steps to creating my own keygen that I can debug and crack?
Are all keygens basically a sum of ASCII numbers?
Are there different variants of keygens?

...

ANSWER

Answered 2018-Oct-16 at 23:26

The key generators you're thinking of work very similar to Cryptographic hash functions and often (if not checking with an online authority) verify against some files or checksums and the software just stops execution if the hash/key wasn't found or entered correctly.

You're getting your terminology mixed up speaking about "ASCII Numbers". Any data on a computer can be converted to numbers, and if chosen to convert blocks of 8 bits to numbers between 0-255 you'll always find a corresponding ASCII character. Often you will actually find that keys are encoded in hex, characters from 0-9 and A-F using 4 bits per character.

And, there are many.

Source https://stackoverflow.com/questions/52844987

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install crackmes

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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