polyval_final(9)

💅 polyval_final(9) — Kernel API Manual ✨

okay bestie, this is the Kernel API Manual page for polyval_final(9) — the finish line for computing a POLYVAL value. no cap, it's short and sweet 🍓

🌸 NAME 🌸

polyval_final — finish computing a POLYVAL value 💫

✨ SYNOPSIS ✨

void polyval_final (struct polyval_ctx *ctx , u8 out[POLYVAL_BLOCK_SIZE]);

🎀 ARGUMENTS 🎀

• ctx — the context you're finalizing, bestie 💅
• out — where the output value goes 🫶

🦋 DESCRIPTION 🦋

If the total data length isn't a multiple of POLYVAL_BLOCK_SIZE, then the final block is automatically zero-padded. literally handled for you ✨

After finishing, this zeroizes ctx. So the caller does not need to do it — that's you, and you can skip that step. periodt 💖

🌈 CONTEXT 🌈

Any context. any context — no special vibe check needed ✅

👑 SEE ALSO 👑

Kernel file ./include/crypto/gf128hash.h, plus these iconic links: 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), polyval_export_blkaligned(9), ghash_update(9), polyval_update(9), ghash_final(9), ghash(9), polyval(9).

okay that's the whole page bestie 🫶 source/version: ./include/crypto • date: October 2026 • page: polyval_final(9) — byeee 💖✨