crypto_shash_init(9)

💖 crypto_shash_init — bestie, we're resetting the digest 💖

okay so this is a page from the Kernel API Manual, and it's literally about the little function that (re)starts your message digest. iconic behaviour honestly 🎀

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✨ NAME ✨

crypto_shash_init — (re)initialize message digest

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🌸 SYNOPSIS 🌸

int crypto_shash_init (struct shash_desc *desc );

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🦋 ARGUMENTS 🦋

• desc — the operational state handle, and it's already filled when you hand it over. like, don't come to this function with an empty one, she needs the goods already in there 💅

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👑 DESCRIPTION 👑

So the call (re-)initializes the message digest that the operational state handle is referencing. literally that's it. and bestie, listen — any potentially existing state left over from previous operations? discarded. gone. not invited to the party. 🗑️✨

fresh start energy only.

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🧚 CONTEXT 🧚

Softirq or process context. that's the vibe check, and it passes ✨

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💜 RETURN 💜

• 0 — slay, the message digest initialization was successful 🎉
• < 0 — uh oh, an error occurred 😭💀

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⭐ SEE ALSO ⭐

grab a snack, this list is long, but we're getting through it together fr fr 🍓

• Kernel file ./include/crypto/hash.h Message Digest Algorithm Definitions(9)
• struct ahash_alg(9)
• struct shash_alg(9)
• Asynchronous Message Digest API(9)
• 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)
• Asynchronous Hash Request Handle(9)
• 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)
• 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_finup(9)
• crypto_shash_update(9)
• crypto_shash_final(9)

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okay that's the whole page, you ate that bestie 🫶 this one lives under ./include/crypto, dated October 2026 — mwah, go init some digests, ily, bye 💅✨🌈