sha3_512(9)

💅 sha3_512 (9) — Kernel API Manual, bestie edition ✨

okay so this is sha3_512(9), straight out of the Kernel API Manual — we're doing a whole cryptographic glow-up today and honestly? obsessed. 🫶

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✨ NAME ✨

sha3_512 — my girl computes a SHA3-512 digest in one shot, no cap. 🎯

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🌸 SYNOPSIS 🌸

void sha3_512 (const u8 *in , size_t in_len , u8
out[SHA3_512_DIGEST_SIZE] );

like literally that's the whole signature. she's compact. she's iconic. 💅

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🎀 ARGUMENTS 🎀

• in — the input data that's getting digested, bestie. the main character of the operation. 💖
• in_len — the length of in, measured in bytes (size_t, so she's got range). 📏
• out — the buffer where the digest gets stored. she's u8 out[SHA3_512_DIGEST_SIZE], so you already know exactly how much room she needs. ✨

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🦋 DESCRIPTION 🦋

so this is a convenience function that computes a SHA3-512 digest. that's it, that's the vibe. 🌈

use sha3_512 instead of the incremental API if you're able to provide all the input at once — like if you've got the whole thing in hand already, why be extra about it? not every moment needs to be a multi-step process, fr fr. 🍓

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💜 CONTEXT 💜

Any context. 🧚 like genuinely, she doesn't gatekeep — any context is fine, do your thing, slay.

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👑 SEE ALSO 👑

Kernel file ./include/crypto/sha3.h, plus the whole friend group:

• struct sha3_ctx(9)
• sha3_zeroize_ctx(9)
• struct shake_ctx(9)
• shake_zeroize_ctx(9)
• sha3_224_init(9)
• sha3_256_init(9)
• sha3_384_init(9)
• sha3_512_init(9)
• sha3_update(9)
• sha3_final(9)
• shake128_init(9)
• shake256_init(9)
• shake_update(9)
• shake_squeeze(9)
• sha3_224(9)
• sha3_256(9)
• sha3_384(9)
• shake128(9)
• shake256(9)

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💀 pro tip from your girl: if you can't hand over all the input at once, don't force it — that's literally what the incremental API is for. read the room. 🙈

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⭐ and that's the page!! sources say she lives in ./include/crypto, dated October 2026, and she answers to sha3_512(9) — okay bye bestie, go hash something gorgeous 💖🔥👑