crypto_lskcipher_chunksize(9)

🌸 crypto_lskcipher_chunksize(9) — Kernel API Manual 🌸

okay bestie, welcome to the manual page for crypto_lskcipher_chunksize(9), straight out of the Linux Kernel API Manual 💅 this one's short but it's important, so pay attention.

---

✨ NAME ✨

crypto_lskcipher_chunksize — obtain chunk size 🎀

---

🦋 SYNOPSIS 🦋

unsigned int crypto_lskcipher_chunksize (struct crypto_lskcipher *tfm );

---

💖 ARGUMENTS 💖

• tfm — the cipher handle. that's it, that's the whole vibe. it's your little handle to the cipher you're working with 🫶

---

💅 DESCRIPTION 💅

okay so here's the tea ☕ — for ciphers like CTR, the block size is set to one. one! literally just one. wild, i know.

but — and this is the part people miss — you still need to provide incremental updates in multiples of the underlying block size, because the IV does not have sub-block granularity. the IV is not out here doing fractional little baby steps, she's a whole-block girlie 💀

this concept, this "how much do you actually have to feed me at a time" number, is known in this API as the chunk size. main character energy, honestly 👑 and now you know, iykyk.

---

⭐ RETURN ⭐

the chunk size, in bytes. that's it. that's the return value 🔥

---

🌈 SEE ALSO 🌈

buckle up bestie, this list is long — but every single one of these is your friend 💜

• Kernel file ./include/crypto/skcipher.h
• struct skcipher_request(9)
• struct skcipher_alg(9)
• struct lskcipher_alg(9)
• Symmetric Key Cipher API(9)
• crypto_alloc_skcipher(9)
• crypto_alloc_lskcipher(9)
• crypto_free_skcipher(9)
• crypto_free_lskcipher(9)
• crypto_has_skcipher(9)
• crypto_skcipher_ivsize(9)
• crypto_lskcipher_ivsize(9)
• crypto_skcipher_blocksize(9)
• crypto_lskcipher_blocksize(9)
• crypto_skcipher_chunksize(9)
• crypto_skcipher_statesize(9)
• crypto_lskcipher_statesize(9)
• crypto_skcipher_setkey(9)
• crypto_lskcipher_setkey(9)
• crypto_skcipher_reqtfm(9)
• crypto_skcipher_encrypt(9)
• crypto_skcipher_decrypt(9)
• crypto_skcipher_export(9)
• crypto_skcipher_import(9)
• crypto_lskcipher_encrypt(9)
• crypto_lskcipher_decrypt(9)
• Symmetric Key Cipher Request Handle(9)
• crypto_skcipher_reqsize(9)
• skcipher_request_set_tfm(9)
• skcipher_request_alloc(9)
• skcipher_request_free(9)
• skcipher_request_set_callback(9)
• skcipher_request_set_crypt(9)

---

ngl, that's a lot of cross-references, but slay, you got this 🧚

---

and that's the whole page, bestie 💖 this lil gem lives under ./include/crypto, dated October 2026, and it's filed as crypto_lskcipher_chunksize(9) — periodt. go forth and chunk responsibly 🍓