aes_cmac(9)

💖 aes_cmac(9) — from the Kernel API Manual 💖

Okay bestie, welcome to the group chat for aes_cmac(9) — it's giving crypto-core and I'm obsessed. 💅

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✨ NAME ✨

aes_cmac — Compute AES-CMAC or AES-XCBC-MAC in one shot 🌸

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🎀 SYNOPSIS 🎀

void aes_cmac (const struct aes_cmac_key *key , const u8 *data , size_t
data_len , u8 out[static AES_BLOCK_SIZE] );

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💅 ARGUMENTS 💅

• key — The key to use 🔑
• data — The message data 📨
• data_len — The data length in bytes 📏
• out — (output) The resulting AES-CMAC or AES-XCBC-MAC value 🎁

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🔥 DESCRIPTION 🔥

This supports both AES-CMAC and AES-XCBC-MAC, no cap. Which one is done depends on whether aes_cmac_preparekey or aes_xcbcmac_preparekey was called. That's the whole vibe check right there. ✨

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🦋 CONTEXT 🦋

Any context. Literally any context. 🫶

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🌈 SEE ALSO 🌈

• Kernel file ./include/crypto/aes-cbc-macs.h
• struct aes_cmac_key(9)
• aes_cmac_zeroize_key(9)
• struct aes_cmac_ctx(9)
• aes_cmac_zeroize_ctx(9)
• aes_cmac_preparekey(9)
• aes_xcbcmac_preparekey(9)
• aes_cmac_init(9)
• aes_cmac_update(9)
• aes_cmac_final(9)

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mwah 💋 this iconic little page comes from source/version ./include/crypto, dated October 2026, and yes bestie it is still aes_cmac(9) — bye, slay, periodt 🫶💖