akcipher_request_alloc(9)

✨ akcipher_request_alloc 💅

okay so bestie, welcome to the Kernel API Manual entry for akcipher_request_alloc — yes that's the whole name, no it's not short, we don't make the rules 🎀. This is the function that allocates a public key request for you. That's it. That's the vibe. Let me walk you through it 🫶

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🌸 SYNOPSIS 🌸

struct akcipher_request * akcipher_request_alloc (struct crypto_akcipher
*tfm , gfp_t gfp );

literally the whole signature. look at her go ✨

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🦋 ARGUMENTS 🦋

• tfm — the AKCIPHER tfm handle, and no you can't just make one up, it has to be one you got from crypto_alloc_akcipher. gotta have the real thing, bestie 💖
• gfp — the allocation flags. yeah, the gfp_t flags, you know the ones. this is you telling the kernel how to behave while it's grabbing memory for you 🌈

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👑 RETURN 👑

So what do you get back? A freshly allocated handle in case of success 🎉 — or NULL in case of an error 😭. Nothing in between, no surprises, no hidden lore. Check for that NULL, queen. periodt.

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💜 SEE ALSO 💜

okay this is the bestie section, so many icons in here, let me introduce everyone:

• the kernel file ./include/crypto/akcipher.h (the source of truth, the mothership 🌟)
• struct akcipher_request(9)
• struct crypto_akcipher(9)
• struct akcipher_alg(9)
• Generic Public Key Cipher API(9)
• crypto_alloc_akcipher(9)
• crypto_free_akcipher(9)
• akcipher_request_free(9)
• akcipher_request_set_callback(9)
• akcipher_request_set_crypt(9)
• crypto_akcipher_maxsize(9)
• crypto_akcipher_encrypt(9)
• crypto_akcipher_decrypt(9)
• crypto_akcipher_sync_encrypt(9)
• crypto_akcipher_sync_decrypt(9)
• crypto_akcipher_set_pub_key(9)
• crypto_akcipher_set_priv_key(9)

all of them. every single one. go read them, iykyk 📚✨

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and that's the page!! sourced from ./include/crypto, dated October 2026 — mwah, bye bestie, go allocate responsibly 💅🔥🎀