KCAPI_AEAD_IVSIZE(3)

💖 kcapi_aead_ivsize — the libkcapi girlie's guide 💖

okay bestie, this one is from the libkcapi crew, and it's a manual page for kcapi_aead_ivsize(3) ✨ yes she's a C function, yes she's part of the AEAD situation, and yes she's literally just here to tell you how big your IV needs to be 🎀

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🌸 NAME 🌸

kcapi_aead_ivsize — return size of IV required for cipher 💅

like, that's the whole job. she tells you the IV size. that's it. that's her. and she's iconic for it 👑

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✨ SYNOPSIS ✨

uint32_t kcapi_aead_ivsize(struct kcapi_handle * handle);

so we're returning a uint32_t and taking one pointer, no cap 🫶

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🦋 ARGUMENTS 🦋

• handle — [in] cipher handle 🌈 this is the one thing you hand over. it's the handle for your cipher, and she needs it to do her lil thing.

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💜 DESCRIPTION 💜

okay so here's the tea, bestie: she returns a value > 0 that specifies the IV size 🎯

and if things go sideways? you get 0 on error 😭 that's the whole vibe check — big number = IV size, zero = nope, something went wrong.

fr fr, 0 is not a size here. 0 is the error flag. don't be out here treating zero as "zero-byte IV", okay? 🙈

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🧚 AUTHOR 🧚

Stephan Mueller <smueller@chronox.de> — Author 🫶

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🎀 COPYRIGHT 🎀

that's all she wrote, bestie 💖

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and that's a wrap on the libkcapi Manual, version 1.5.0, from July 2025 🌟 she ate, she left no crumbs, and the IV size question is officially answered 💅✨