hmac_sha384_init(9)

🌸 hmac_sha384_init — from the Kernel API Manual, bestie 💅

Okay so picture this: you're in the kernel, you've got an HMAC-SHA384 situation, and you need a fresh context for a brand new message. That's literally this function. Welcome to the group chat ✨

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✨ NAME ✨

hmac_sha384_init — ngl, it just initializes an HMAC-SHA384 context for a new message 🎀

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🦋 SYNOPSIS 🦋

void hmac_sha384_init (struct hmac_sha384_ctx *ctx , const struct
       hmac_sha384_key *key );

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💜 ARGUMENTS 💜

• ctx — (output) the HMAC context you're initializing, bestie. It gets filled in for you 🫶
• key — the prepared HMAC key. Already prepared, okay? Like, do the prep first, this is not the prep step 💅

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🔥 DESCRIPTION 🔥

Lowkey the whole point: this sets up your context so you can compute incrementally. But listen — if you don't need incremental computation, consider hmac_sha384 instead. It's giving one-and-done energy and honestly? Sometimes that's the move 😌

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🌈 CONTEXT 🌈

Any context. Fr fr, any. You're free 🦋

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👑 SEE ALSO 👑

Kernel file ./include/crypto/sha2.h

The sha224 fam 🍓:

• struct sha224_ctx(9)
• sha224_init(9)
• sha224_update(9)
• sha224_final(9)
• sha224(9)

The hmac_sha224 squad 💖:

• struct hmac_sha224_key(9)
• struct hmac_sha224_ctx(9)
• hmac_sha224_preparekey(9)
• hmac_sha224_init(9)
• hmac_sha224_init_usingrawkey(9)
• hmac_sha224_update(9)
• hmac_sha224_final(9)
• hmac_sha224(9)
• hmac_sha224_usingrawkey(9)

The sha256 crew ✨:

• struct sha256_ctx(9)
• sha256_init(9)
• sha256_update(9)
• sha256_final(9)
• sha256(9)
• sha256_finup_2x(9)
• sha256_finup_2x_is_optimized(9)

The hmac_sha256 icons 🎀:

• struct hmac_sha256_key(9)
• struct hmac_sha256_ctx(9)
• hmac_sha256_preparekey(9)
• hmac_sha256_init(9)
• hmac_sha256_init_usingrawkey(9)
• hmac_sha256_update(9)
• hmac_sha256_final(9)
• hmac_sha256(9)
• hmac_sha256_usingrawkey(9)

The sha384 girlies (our main character's home base) 💅:

• struct sha384_ctx(9)
• sha384_init(9)
• sha384_update(9)
• sha384_final(9)
• sha384(9)

The hmac_sha384 besties — yes, us 🌸:

• struct hmac_sha384_key(9)
• struct hmac_sha384_ctx(9)
• hmac_sha384_preparekey(9)
• hmac_sha384_init_usingrawkey(9)
• hmac_sha384_update(9)
• hmac_sha384_final(9)
• hmac_sha384(9)
• hmac_sha384_usingrawkey(9)

The sha512 extended universe 🧚:

• struct sha512_ctx(9)
• sha512_init(9)
• sha512_update(9)
• sha512_final(9)
• sha512(9)

And the hmac_sha512 legends, closing us out 💀🔥:

• struct hmac_sha512_key(9)
• struct hmac_sha512_ctx(9)
• hmac_sha512_preparekey(9)
• hmac_sha512_init(9)
• hmac_sha512_init_usingrawkey(9)
• hmac_sha512_update(9)
• hmac_sha512_final(9)
• hmac_sha512(9)
• hmac_sha512_usingrawkey(9)

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Not me listing every single one of these because every single one of these matters. Iykyk 🫶

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And that's the whole page, bestie — brought to you by ./include/crypto, dated October 2026, no cap. Mwah 💋✨