SHA512/224 Hash Generator

What the SHA-512/224 generator does

This produces the SHA-512/224 hash of your text, a 56-character hex fingerprint. Type or paste your text, press Convert, and copy or download the result. It belongs to the SHA-2 family, and like every hash it is one-way, so the result cannot be turned back into your text.

It runs in your browser, so nothing you enter is uploaded.

How to use it

1. Enter your text. Type or paste it, or upload a plain text file.
2. Press Convert. The 56-character SHA-512/224 hash appears, ready to Copy or Download.

What SHA-512/224 actually is

The name works the same way as its slightly longer sibling, SHA-512/256: run the full SHA-512 algorithm, then keep only the first 224 bits. So it uses SHA-512's 64-bit engine and gives you the shortest output of that branch, a 56-character fingerprint, while starting from its own special seed values rather than simply trimming a SHA-512 hash. It shares the same two advantages as SHA-512/256, both explained on that page: it can run faster than the 32-bit hashes on a 64-bit machine, and because its output is trimmed, it naturally resists length-extension attacks. This is just the 224-bit size of that same idea.

It is not the same as SHA-224

As with the others in this corner of the family, the matching length is a trap worth naming. SHA-224, from the 32-bit side of SHA-2, and SHA-512/224, from the 64-bit side, both produce a 56-character hash, but they are different calculations and give different results from the same text. The length is shared, the value is not. If a system asks for SHA-224, use the plain SHA-224 tool; if it asks for SHA-512/224, this is the right one. Read the name carefully so you pick the one actually wanted.

The library doing the work

The hashing is handled by js-sha512, a small JavaScript library implementing the 64-bit SHA-2 engine, which also provides SHA-512/224. Your text is read as UTF-8 bytes and run through the algorithm in your browser, with the 56-character hex result handed back.

Questions people ask

Is SHA-512/224 the same as SHA-224?

No. Both give a 56-character hash, but they come from different sides of the SHA-2 family and produce different results from the same input. They are not interchangeable.

How is it different from SHA-512/256?

Only in length. SHA-512/224 keeps 224 bits and SHA-512/256 keeps 256, both carved from the same SHA-512 engine with the same advantages. This one gives the shorter fingerprint.

Can I reverse a SHA-512/224 hash?

No. It is one-way, so the original text cannot be recovered. The SHA-256 page explains why no hash can be reversed.

References

1. National Institute of Standards and Technology (2015). FIPS PUB 180-4: Secure Hash Standard (SHS). https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf
2. js-sha512, a SHA-512 implementation for JavaScript that also provides SHA-512/224 (npm package). https://www.npmjs.com/package/js-sha512