blake2b_final(9)

💜 blake2b_final(9) — Kernel API Manual

okay bestie, welcome to the finale of your BLAKE2b journey ✨ this is blake2b_final(9), the page where the hashing saga gets its little bow tied 🎀

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🌸 NAME 🌸

blake2b_final — finish computing a BLAKE2b hash 💅 like the last chapter of your crypto fanfic, no cap

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✨ SYNOPSIS ✨

void blake2b_final (struct blake2b_ctx *ctx , u8 *out );

that's it, that's the whole vibe 🦋

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🎀 ARGUMENTS 🎀

• ctx — the context you're finalizing, bestie. it must have been initialized already, okay? don't come at this with an uninitialized context, that's giving chaos energy 💀
• out — (output) the resulting BLAKE2b hash goes here 🫶 and its length will be equal to the outlen that was passed to blake2b_init or blake2b_init_key. so whatever length you asked for back then? that's the length you get now. iconic consistency, periodt ⭐

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💖 DESCRIPTION 💖

so after finishing, this zeroizes ctx. literally wipes it, right there, for you 🔥 so the caller does not need to do it — you're free, bestie, you can just close the door and walk away, the cleanup is handled 😭👑

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🌈 CONTEXT 🌈

Any context. yes, any. we love an inclusive icon 🧚

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💅 SEE ALSO 💅

• Kernel file ./include/crypto/blake2b.h
• struct blake2b_ctx(9)
• blake2b_init(9)
• blake2b_init_key(9)
• blake2b_update(9)
• blake2b(9)

go read the whole set, iykyk 💜

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and that's the whole page, bestie 🍓 before you go — this little gem lives in ./include/crypto, dated October 2026, and yes it is still blake2b_final(9) in case you lost the plot 💀 mwah, go hash something gorgeous 💖✨