sha3_224(9)

📦 version 7.3.1, in nixpkgs unstable

✨ sha3_224 — one-shot SHA3-224, bestie 💅

Okay so real talk: this is a page from the Kernel API Manual (the sha3_224(9) one, yes the 9 is part of the name, don't @ me), and it's literally the easiest way to hash stuff in the kernel. Let's get into it 🫶

🌸 SYNOPSIS 🌸

void sha3_224 (const u8 *in , size_t in_len , u8
out[SHA3_224_DIGEST_SIZE] );

That's it. That's the whole vibe. One call, one digest, no drama ✨

🎀 ARGUMENTS 🎀

  • in — the input data to be digested. Like, the actual stuff you want hashed, bestie 🍓
  • in_len — length of the input data in bytes. Yes you have to tell it how big in is, it's not a mind reader 😭
  • out — the buffer where the digest gets stored. It's sized SHA3_224_DIGEST_SIZE, so make sure it's got room to slay 👑

💖 DESCRIPTION 💖

It's a convenience function that computes a SHA3-224 digest. That's the whole thing. Iconic behaviour, no cap.

The way to think about it: use this instead of the incremental API if you're able to provide all the input at once. Got the whole payload in hand? Perfect, this is your girl 💅 If you're streaming data in chunks, you want the incremental API instead — go look at sha3_224_init(9), sha3_update(9), sha3_final(9) and friends. iykyk 🌈

🦋 CONTEXT 🦋

Any context. Literally any. Go off, main character 🧚

🔥 SEE ALSO 🔥

Like, the whole crypto family reunion is right there. Go say hi 🌸

Lowkey obsessed with how short this page is. Zero filler, all function 💜

And that's the tea, bestie 🎀 — this page lives under ./include/crypto (that's the source spot), stamped October 2026 for the date, and it's the sha3_224(9) entry from the Kernel API Manual. Periodt. ✨💖

📦 where this page comes from