polyval_export_blkaligned(9)

💖 polyval_export_blkaligned(9) — Kernel API Manual 💖

okay so bestie, we're in the Kernel API Manual today and the star of the show is polyval_export_blkaligned(9). yes that's a mouthful, no you don't have to say it out loud. let's get into it 🌸

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✨ NAME ✨

polyval_export_blkaligned — literally just exports a POLYVAL accumulator value. that's the whole job. she's focused, she's straightforward, she ate 💅

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🦋 SYNOPSIS 🦋

void polyval_export_blkaligned (const struct polyval_ctx *ctx , struct
polyval_elem *acc );

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🎀 ARGUMENTS 🎀

• ctx — the context you're pulling the accumulator value out of. this is the source, the origin story, the main character 🫶
• acc — (output) the exported accumulator value lands here. it's giving "you get the result, congrats" ✨

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⭐ DESCRIPTION ⭐

so what actually happens? this exports the accumulator from a POLYVAL context. simple, clean, iconic.

🚨 vibe check / important caveat: the number of data bytes processed so far must be a multiple of POLYVAL_BLOCK_SIZE. no cap, this is not optional. if it's not a multiple, that's not the moment, bestie 😭

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👑 SEE ALSO 👑

• Kernel file ./include/crypto/gf128hash.h
• struct polyval_elem(9)
• struct ghash_key(9)
• struct polyval_key(9)
• struct ghash_ctx(9)
• struct polyval_ctx(9)
• ghash_preparekey(9)
• polyval_preparekey(9)
• ghash_init(9)
• polyval_init(9)
• polyval_import_blkaligned(9)
• ghash_update(9)
• polyval_update(9)
• ghash_final(9)
• polyval_final(9)
• ghash(9)
• polyval(9)

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and that's the page!! 🧚 this lil gem lives under ./include/crypto and the version we're looking at is dated October 2026. ok bye bestie, go export those accumulators responsibly 💜🔥