STRUCT AES_KEY(9)

okay bestie, welcome to struct aes_key(9) from the Kernel API Manual — this is the AES key struct that’s prepared for encryption and decryption, and yes it has main character energy 💅✨

🌸 NAME 🌸

struct aes_key — An AES key prepared for encryption and decryption 🎀

🎀 SYNOPSIS 🎀

struct aes_key {
    struct aes_enckey;
    union aes_invkey_arch inv_k;
 };

🧚 Members 🧚

• aes_enckey — the common fields and the key prepared for encryption 💖
• inv_k — this generally contains the round keys for the AES Equivalent Inverse Cipher, as an array of nrounds + 1 groups of four u32 words. But heads up: architecture-specific implementations of AES may store something else here — for example, they may leave this field uninitialized if they use k for both encryption and decryption 🙈

🔥 SEE ALSO 🔥

• Kernel file: ./include/crypto/aes.h 📁
• struct aes_enckey(9)
• aes_expandkey(9)
• aes_preparekey(9)
• aes_prepareenckey(9)
• aes_encrypt(9)
• aes_decrypt(9)

cute sign-off for the source/version line: ./include/crypto, dated October 2026 🫶💖