ASYNCHRONOUS HASH REQUEST HANDLE(9)

✨ Asynchronous Hash Request Handle(9) ✨

hi bestie!! welcome to the Kernel API Manual 🫶 this one is short and sweet but it's honestly such an important little guy, so let's get into it 💅

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🌸 NAME 🌸

ahash_request — the Asynchronous Hash Request Handle, aka the little data structure that holds literally everything your async hash op needs 💖

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💅 DESCRIPTION 💅

okay so picture this: the ahash_request data structure contains all the pointers to data required for the asynchronous cipher operation. like, all of them. it's giving "I brought everything to the group project" energy 👑

what's actually in there:

• the cipher handle — and here's the slay part, it can be used by multiple ahash_request instances at the same time, no cap 🔥
• a pointer to the plaintext
• the message digest output buffer
• the asynchronous callback function
• etc. (yes the manpage literally says etc., we love a vague queen 🙈)

and the way it works is basically this: it acts as a handle to the ahash_request_* API calls, in a similar way as the ahash handle acts as a handle to the crypto_ahash_* API calls. it's the same vibe, just one level down — main character energy for the request layer 💫

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🦋 SEE ALSO 🦋

so many friends omg. go read these, iykyk 💜

the file itself:

• Kernel file ./include/crypto/hash.h

the structs & big-picture pages:

• Message Digest Algorithm Definitions(9)
• struct ahash_alg(9)
• struct shash_alg(9)
• Asynchronous Message Digest API(9)

the async family (the crypto_ahash_* girlies):

• crypto_alloc_ahash(9)
• crypto_free_ahash(9)
• crypto_has_ahash(9)
• crypto_ahash_blocksize(9)
• crypto_ahash_digestsize(9)
• crypto_ahash_statesize(9)
• crypto_ahash_reqtfm(9)
• crypto_ahash_reqsize(9)
• crypto_ahash_setkey(9)
• crypto_ahash_finup(9)
• crypto_ahash_final(9)
• crypto_ahash_digest(9)
• crypto_ahash_export(9)
• crypto_ahash_import(9)
• crypto_ahash_init(9)
• crypto_ahash_update(9)

the request family (the ahash_request_* besties — this is our girl's home turf 🎀):

• ahash_request_set_tfm(9)
• ahash_request_alloc(9)
• ahash_request_free(9)
• ahash_request_set_callback(9)
• ahash_request_set_crypt(9)
• ahash_request_set_virt(9)

the synchronous side (because the sync girlies deserve love too 🌈):

• Synchronous Message Digest API(9)
• crypto_alloc_shash(9)
• crypto_free_shash(9)
• crypto_shash_blocksize(9)
• crypto_shash_digestsize(9)
• crypto_shash_descsize(9)
• crypto_shash_setkey(9)
• crypto_shash_digest(9)
• crypto_shash_tfm_digest(9)
• crypto_shash_export(9)
• crypto_shash_import(9)
• crypto_shash_init(9)
• crypto_shash_finup(9)
• crypto_shash_update(9)
• crypto_shash_final(9)

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that's the whole page bestie, short and iconic 💀✨

mwah 💋 this one lives in ./include/crypto and the version vibes are giving October 2026 — go touch some hashes, ily 🧚💖