# sha224sum

> computer program that calculates SHA224 hashes

**Wikidata**: [Q109666368](https://www.wikidata.org/wiki/Q109666368)  
**Source**: https://4ort.xyz/entity/sha224sum

## Summary
`sha224sum` is a free, open-source computer program that calculates SHA-224 cryptographic hash values, part of the GNU Core Utilities. It is primarily used on Linux systems to verify file integrity by generating unique fingerprints for files.

## Key Facts
- **Instance of**: Free software, distributed under terms allowing users to run, study, modify, and redistribute it.
- **Part of**: GNU Core Utilities, a collection of standard Unix tools.
- **Platform**: Primarily available on Linux systems.
- **Authors**: Developed by Ulrich Drepper, Scott Miller, and David Madore.
- **Hash Algorithm**: Uses SHA-224, a 224-bit cryptographic hash function.
- **Documentation**: Official documentation available at [GNU Core Utilities](https://www.gnu.org/software/coreutils/sha224sum).
- **References**: Man pages and guides available at [man7.org](https://www.man7.org/linux/man-pages/man1/sha224sum.1.html) and [computerhope.com](https://www.computerhope.com/unix/sha224sum.htm).

## FAQs
### Q: What is `sha224sum` used for?
A: `sha224sum` generates SHA-224 hash values to verify file integrity and detect tampering. It is commonly used in Linux environments for cryptographic checksums.

### Q: Is `sha224sum` free software?
A: Yes, `sha224sum` is free software, licensed under terms that allow users to freely run, study, modify, and distribute it.

### Q: Where can I find documentation for `sha224sum`?
A: Official documentation is available on the [GNU Core Utilities website](https://www.gnu.org/software/coreutils/sha224sum).

### Q: Who developed `sha224sum`?
A: `sha224sum` was developed by Ulrich Drepper, Scott Miller, and David Madore.

### Q: On which operating systems is `sha224sum` available?
A: `sha224sum` is primarily available on Linux systems.

## Why It Matters
`sha224sum` plays a crucial role in ensuring data integrity and security in Linux environments. By generating SHA-224 hashes, it allows users to verify that files have not been altered, which is essential for software downloads, system updates, and secure communications. As part of the GNU Core Utilities, it is a foundational tool for system administrators and developers, providing a reliable method for cryptographic verification. Its open-source nature ensures transparency and community trust, making it a standard utility in Unix-like operating systems.

## Notable For
- **Part of GNU Core Utilities**: Included in a widely used suite of standard Unix tools.
- **SHA-224 Implementation**: Provides a specific cryptographic hash function for file verification.
- **Free Software**: Distributed under terms that promote user freedom and collaboration.
- **Linux Compatibility**: Primarily designed for and used in Linux environments.
- **Documented and Supported**: Official documentation and man pages are available for reference.

## Body
### Overview
`sha224sum` is a command-line utility that computes SHA-224 checksums for files. It is part of the GNU Core Utilities, a collection of essential Unix tools. The program is designed to generate unique hash values that can be used to verify file integrity, ensuring that files have not been tampered with.

### Development and Authors
`sha224sum` was developed by multiple contributors, including Ulrich Drepper, Scott Miller, and David Madore. These developers contributed to its creation and integration into the GNU Core Utilities.

### Usage and Platform
The utility is primarily available on Linux systems. Users can run `sha224sum` in the terminal to generate SHA-224 hashes for files, which can then be compared to verify file integrity.

### Documentation and References
Official documentation for `sha224sum` is available on the GNU Core Utilities website. Additional references and man pages are available at [man7.org](https://www.man7.org/linux/man-pages/man1/sha224sum.1.html) and [computerhope.com](https://www.computerhope.com/unix/sha224sum.htm).

### Significance
`sha224sum` is significant in the realm of cryptographic verification and data integrity. Its inclusion in the GNU Core Utilities ensures its availability across Linux distributions, making it a trusted tool for system administrators and developers. The open-source nature of the utility fosters community trust and collaboration.

## References

1. [Source](https://linux.die.net/man/1/sha224sum)
2. [Source](https://www.man7.org/linux/man-pages/man1/sha224sum.1.html)
3. [Source](https://www.computerhope.com/unix/sha224sum.htm)
4. [Source](http://man.he.net/man1/sha224sum)