https://github.com/mackron/md5

MD5 hashing implementation.
https://github.com/mackron/md5

Last synced: about 1 year ago
JSON representation

MD5 hashing implementation.

• Host: GitHub
• URL: https://github.com/mackron/md5
• Owner: mackron
• Created: 2022-02-13T09:57:45.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2022-12-07T02:48:49.000Z (over 3 years ago)
• Last Synced: 2025-03-25T02:36:51.823Z (about 1 year ago)
• Language: C
• Size: 15.6 KB
• Stars: 12
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

          
MD5 Hashing




    

    



A simple MD5 hashing implementation. Usage:

    unsigned char digest[MD5_SIZE];

    md5_context ctx;

    md5_init(&ctx);

    {

        md5_update(&ctx, src, sz);

    }

    md5_finalize(&ctx, digest);

The above code is the literal implementation of `md5()` which is a high level helper for hashing

data of a known size:

    unsigned char hash[MD5_SIZE];

    md5(hash, data, dataSize);

Use `md5_format()` to format the digest as a hex string. The capacity of the output buffer needs to

be at least `MD5_SIZE_FORMATTED` bytes.

This library does not perform any memory allocations and does not use anything from the standard

library except for `size_t` and `NULL`, both of which are drawn in from stddef.h. No other standard

headers are included.

There is no need to link to anything with this library. You can use MD5_IMPLEMENTATION to define

the implementation section, or you can use md5.c if you prefer a traditional header/source pair.