STRUCT HMAC_SHA1_KEY(9)

💖 NAME 💖

struct hmac_sha1_key — the prepared key for HMAC-SHA1, bestie. This is your Kernel API Manual moment.

✨ SYNOPSIS ✨

       struct hmac_sha1_key {
           struct sha1_block_state istate;
           struct sha1_block_state ostate;
        };

🎀 Members 🎀

• istate — private. That’s it, that’s the whole vibe. 🙈
• ostate — private. Also private. No cap. 💅

🦋 SEE ALSO 🦋

Kernel file ./include/crypto/sha1.h is where the friends live, and the whole squad is:

• struct sha1_ctx(9)
• sha1_init(9)
• sha1_update(9)
• sha1_final(9)
• sha1(9)
• struct hmac_sha1_ctx(9)
• hmac_sha1_preparekey(9)
• hmac_sha1_init(9)
• hmac_sha1_init_usingrawkey(9)
• hmac_sha1_update(9)
• hmac_sha1_final(9)
• hmac_sha1(9)
• hmac_sha1_usingrawkey(9)

Okay but seriously, these are the exact references from the page — go read them if you want the full lore. 💜

Sign-off time, bestie: this cutie came from ./include/crypto, and it’s dated October 2026. Slay, stay cryptographic, and don’t forget your private members. 💖✨🎀