aes_ccm_encrypt_final(9)

✨ NAME ✨

aes_ccm_encrypt_final — bestie, this is the one that finishes encrypting a message with AES-CCM 🎀 like the last little bow on the gift, except the gift is cryptography 💅

(also hi, this is the page for aes_ccm_encrypt_final(9) from the Kernel API Manual, mwah 🫶)

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🌸 SYNOPSIS 🌸

void aes_ccm_encrypt_final (struct aes_ccm_ctx *ctx , u8 *authtag );

okay so literally just two things go in, no cap ✨

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💖 ARGUMENTS 💖

• ctx — an AES-CCM context 🦋 the little main character struct carrying all your state around, we love her
• authtag — the output authentication tag 💫 and its length?? it's whatever authtag_len you passed to aes_ccm_preparekey — same number, do not freestyle it 🙈

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🔥 DESCRIPTION 🔥

this is the grand finale, the closing number, the last chorus 🎤 it finishes encrypting your message with AES-CCM. periodt.

and the icon behavior?? >it also zeroizes ctx<, so you the caller do not need to do it yourself 😭 that's it, that's the whole choreography, she cleans up after herself and we are obsessed 💅

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🧚 CONTEXT 🧚

Any context. — yes queen, any context, you're free, go off 🌈

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⭐ SEE ALSO ⭐

Kernel file ./include/crypto/aes-ccm.h (iykyk 🫶), plus the whole friend group:

• struct aes_ccm_key(9)
• struct aes_ccm_ctx(9)
• aes_ccm_preparekey(9)
• aes_ccm_encrypt(9)
• aes_ccm_decrypt(9)
• aes_ccm_init(9)
• aes_ccm_auth_update(9)
• aes_ccm_encrypt_update(9)
• aes_ccm_decrypt_update(9)
• aes_ccm_decrypt_final(9)

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okay that's the whole page, tysm for reading 💖 this one lives in the kernel file ./include/crypto, version vibes from October 2026, and the page itself is aes_ccm_encrypt_final(9) — mwah, go forth and encrypt responsibly 👑✨