aead_request_set_tfm(9)

💖 aead_request_set_tfm(9) 💖

okay so bestie, gather round — this one lives in the Kernel API Manual and it's genuinely one of the easiest glow-ups in the whole crypto corner of the kernel. no cap.

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✨ NAME ✨

aead_request_set_tfm — swaps out the cipher handle reference inside a request, i.e. the official "update cipher handle reference in request" moment 🎀

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🦋 SYNOPSIS 🦋

void aead_request_set_tfm (struct aead_request *req , struct crypto_aead
*tfm );

like, yes, that's the whole thing. she's small but she's doing something 💅

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🌸 ARGUMENTS 🌸

• req — the request handle you're about to mess with. this is the one getting modified, so she's the main character here 👑
• tfm — the cipher handle that "shall be added" to the request handle. it's moving in, basically 🫶

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🧚 DESCRIPTION 🧚

so here's the tea: this function lets the caller replace the existing aead handle inside the request data structure with a different one. that's it. that's the whole vibe. old handle out, new handle in, request stays the same ✨

no cap, it's giving "quick wardrobe change mid-scene" and honestly? obsessed 💜

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🌈 SEE ALSO 🌈

• Kernel file ./include/crypto/aead.h
• Authenticated Encryption With Associated Data (AEAD) Cipher API(9)
• struct aead_request(9)
• struct aead_alg(9)
• crypto_alloc_aead(9)
• crypto_free_aead(9)
• crypto_has_aead(9)
• crypto_aead_ivsize(9)
• crypto_aead_authsize(9)
• crypto_aead_blocksize(9)
• crypto_aead_setkey(9)
• crypto_aead_setauthsize(9)
• crypto_aead_encrypt(9)
• crypto_aead_decrypt(9)
• Asynchronous AEAD Request Handle(9)
• crypto_aead_reqsize(9)
• aead_request_alloc(9)
• aead_request_free(9)
• aead_request_set_callback(9)
• aead_request_set_crypt(9)
• aead_request_set_ad(9)

like a whole friend group. read them all, iykyk 😭🔥

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fr fr though — every single one of these is a real page, don't skip the squad 🙈

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and that's the whole page, bestie 🍓 this cutie ships from ./include/crypto and the version stamp says October 2026 — so like, mark your calendar, mwah 💋✨