KCAPI_AEAD_OUTBUFLEN(3)

💖 NAME 💖

kcapi_aead_outbuflen_dec — bestie, this one tells you the minimum size your decryption output buffer needs to be. no cap, that's the whole job 🎀

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✨ SYNOPSIS ✨

size_t kcapi_aead_outbuflen_dec(struct kcapi_handle * handle,
                                size_t inlen, size_t assoclen,
                                size_t taglen);

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🦋 ARGUMENTS 🦋

• handle — [in] the cipher handle, aka your little crypto bestie you've been passing around
• inlen — [in] size of the ciphertext, so like, how many bytes of secret soup you're feeding in
• assoclen — [in] size of the associated data (AD) — yes that AD, the extra authenticated-but-not-encrypted bit 🫶
• taglen — [in] size of the authentication tag, the little seal that says "yep this is legit"

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🌸 DESCRIPTION 🌸

okay so basically: this function returns the minimum size of output data length, in bytes 💅

like, it's giving "how much room do I need to malloc for my plaintext" energy. ask it before you allocate, don't be out here guessing, fr fr ✨

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👑 AUTHOR 👑

Stephan Mueller <smueller@chronox.de>

— Author. we stan. 🙌

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🌈 COPYRIGHT 🌈

this is from the libkcapi Manual 1.5.0, dated July 2025 🫶

that's it, that's the page — go allocate responsibly bestie, and remember: check your buffer length before you write to it 💖✨🎀🦋🌸💅