sha3_zeroize_ctx(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sha3_zeroize_ctx — Kernel API Manual, bestie edition ✨

okay so real talk, this one is a tiny little king in the sha3.h universe and it lives in the Kernel API Manual, section 9. it's short, it's sweet, it's giving "small but mighty" and honestly? obsessed. 🎀

🌸 NAME 🌸

sha3_zeroize_ctx — zeroize a SHA-3 context 🧹✨

like, wipe it clean. bye-bye secrets. no cap.

✨ SYNOPSIS ✨

void sha3_zeroize_ctx (struct sha3_ctx *ctx );

that's it. that's the whole vibe. 💅

🦋 ARGUMENTS 🦋

  • ctx — the context you're zeroizing 🫶 literally hand it over and it gets scrubbed.

💖 DESCRIPTION 💖

so this function zeroizes a SHA-3 context. iconic behaviour, honestly. 🌈

big thing to know: this is already called by sha3_final — so if you're going through sha3_final, bestie, you're already covered, it's handled, don't even worry about it. 😌✨

but if you're abandoning a context without calling sha3_final, that's when you call this explicitly. do not leave that context just sitting there with its data still in it — call sha3_zeroize_ctx and let it go out clean. 👑

lowkey important: the whole point is clearing the context out, so don't skip this when you're bailing on a context early.

🔥 SEE ALSO 🔥

that's the whole page, bestie — go zeroize something responsibly 🧚‍♀️💜

and for the sign-off: this little beauty comes from ./include/crypto, dated October 2026. slay. periodt. 🍓⭐

📦 where this page comes from