STRUCT HMAC_SHA256_KEY(9)

📦 version 7.3.1, in nixpkgs unstable

💖 struct hmac_sha256_key(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ — this is the page for struct hmac_sha256_key, aka Prepared key for HMAC-SHA256. she's a little struct, she holds a key that's already been prepped, and honestly? she ate. 🎀

🌸 NAME 🌸

struct hmac_sha256_key — Prepared key for HMAC-SHA256. that's it, that's the whole vibe. a struct that holds a key, already prepared, for HMAC-SHA256. 💅

✨ SYNOPSIS ✨

here's the whole shape of her, no cap:

struct hmac_sha256_key {
    struct __hmac_sha256_key key;
 };

like, that's literally the entire struct. one member. minimalism is the moment. 🦋

🫶 Members 🫶

  • key — private 👀 that's all the manual says, and honestly she's keeping it mysterious. it's her private business, iykyk.

🔥 SEE ALSO 🔥

bestie there are SO many siblings in this family, buckle up. first up, the kernel file where she lives:

  • Kernel file ./include/crypto/sha2.h

then the sha224 crew:

the sha256 girlies (our main character's own squad 💖):

the sha384 hotties 🐚:

and the big sha512 energy 👑:

legit obsessed with how the whole sha family showed up for her. read the whole list, bestie, don't skip — every single one of those pages is a real one. 🌈

and that's the page, periodt 🫶 this little love letter lives in ./include/crypto and it's dated October 2026, brought to you by the fine folks of the Kernel API Manual — go drink some water and go call hmac_sha256_preparekey(9) 💜🧚

📦 where this page comes from