SHA-224 Hash Generator
Generate a SHA-224 hash for text or files, and compare it against a published checksum.
About the SHA-224 Hash Generator
A hash is a one-way function: it turns any input, of any length, into a fixed 224-bit value — 56 hexadecimal characters — and there is no way back. Change a single bit of the input and roughly half the output bits flip, which is what makes a hash useful for detecting that something has changed.
SHA-224 is SHA-256 computed with different initial values and truncated to 224 bits. It exists to match the security level of 3DES and 112-bit symmetric keys, which is why it turns up in older standards and in DSA parameter sets rather than in new designs.
Like SHA-384, the truncation gives it resistance to length-extension attacks. Outside of interoperating with a specification that names it, there is little reason to prefer it over SHA-256, which is only marginally longer and far more widely implemented.
Hashing here runs through the Web Crypto API in your own browser, so nothing is transmitted. That matters: a hash tool is often used on passwords, keys and file contents, and pasting those into a server-side tool hands them over.
How it works
Type or paste your text, or drop in a file of any size.
The SHA-224 digest is computed in your browser as you type — nothing is uploaded.
Paste a published checksum into the compare field to verify a download byte-for-byte.
Frequently asked questions
- What is SHA-224 for?
- Matching a 112-bit security level, which is where it came from — pairing with 3DES and certain DSA parameter sets. It appears mainly when interoperating with older standards rather than in new designs.
- Is SHA-224 weaker than SHA-256?
- It offers a smaller margin — 112-bit collision resistance against 128 — but both are far beyond feasible attack. The practical difference is negligible; the compatibility difference is not.
- How is SHA-224 different from SHA-256?
- It is the same algorithm with different initial constants, truncated to 224 bits. The truncation also gives it resistance to length-extension attacks, which full SHA-256 lacks.
- How long is a SHA-224 hash?
- 224 bits, shown as 56 hexadecimal characters. Like every hash function, the output length is fixed regardless of whether you hash a single byte or a gigabyte of data.
- Should I use SHA-224 for new work?
- Rarely. SHA-256 is barely longer, more widely supported and more likely to be what another system expects. Choose SHA-224 only when something specific requires it.
Privacy
Everything happens locally. Your files are read by your own browser, processed on your device, and never uploaded — closing the tab is all it takes to erase them.
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