crypto_skcipher_export(9)

📦 version 7.3.1, in nixpkgs unstable

✨ crypto_skcipher_export ✨

okay bestie, this is literally the glow-up of state-saving in the kernel crypto world 💅

🎀 NAME 🎀

crypto_skcipher_export — export partial state (it's giving "save file for your vibes" energy, no cap)

🌸 SYNOPSIS 🌸

int crypto_skcipher_export(struct skcipher_request *req, void *out);

🦋 ARGUMENTS 🦋

  • req — the reference to the skcipher_request handle that holds all the info you need to actually do the operation. this is your main character struct, fr.
  • out — the output buffer, and it needs to be big enough to hold the state. don't skimp on sizing bestie, it's literally not the move. 🫶

💖 DESCRIPTION 💖

so here's the tea: this function exports the partial state of the transformation. it dumps the ENTIRE state of whatever transformation is currently happening into a block of data you provide. then you can import it back later. iconic behavior, honestly.

why would you want this? lowkey genius use case: say you're processing a bunch of data and you want to save your progress mid-transformation. you save that partial result, and then later you can reload it multiple times for multiple re-uses. it's like bookmarking your spot in a fanfic and going back to reread, except it's cryptography and way more serious 💀

and the best part? no data processing happens at this point. it's purely a state-dump moment. no encryption, no decryption, just vibes and bytes. ✨

🔥 RETURN 🔥

  • 0 if the cipher operation was successful (slay 💅)
  • < 0 if an error occurred (not slay, but we move 😭)

🌈 SEE ALSO 🌈

okay this list is LONG so buckle up buttercup, it's a whole shopping list of kernel crypto friends:

like I said. LONG. but every single one is linked and valid so don't come for me 💜

💀 real talk: this is literally just a state export. no processing, no magic, just "save my progress bestie." don't expect it to do anything else.

and that's the whole page! this gem lives in ./include/crypto and the version vibes are dated October 2026. periodt. 💅✨🍓

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