crypto_krb5_...e_encryption(9)

📦 version 7.3.1, in nixpkgs unstable

💅 crypto_krb5_prepare_encryption(9) — the kernel API manual bestie 🎀

okay so real talk, this one lives in section 9 of the kernel API manual, and it's literally the "get your crypto object ready" girlie. she sets everything up so you don't have to. no cap. ✨

🌸 NAME 🌸

crypto_krb5_prepare_encryption — prepare an AEAD crypto object for encryption-mode 🫶

like, she prepares it. she's the prep. the setup era. the "we're about to encrypt, let me get cute first" moment. 💖

✨ SYNOPSIS ✨

struct crypto_aead * crypto_krb5_prepare_encryption (const struct
krb5_enctype *krb5 , const struct krb5_buffer *TK , u32 usage , gfp_t
gfp );

that's the whole vibe check right there — returns a struct crypto_aead *, and yes she takes four arguments, we'll get to those 👑

🦋 ARGUMENTS 🦋

  • krb5 — the encoding to use. like, which enctype are we doing today, bestie? that's her.
  • TK — the transport key to use. the actual key. the main character of keys, honestly 🔑
  • usage — the usage constant for key derivation. so the key can be derived correctly, obviously 💅
  • gfp — allocation flags. the usual gfp_t situation. memory allocation vibes ✨

🌈 DESCRIPTION 🌈

okay so here's the tea, and it's honestly iconic:

she allocates a crypto object — one that does all the necessary crypto — then she keys it, and sets its parameters, and returns the crypto handle to it. that's the whole job. that's her whole personality. 💖

and then??? that returned handle can be used to dispatch encrypt and decrypt operations. so like, she sets you up and then you go do the actual encrypting/decrypting. she's the friend who books the reservation and then lets you enjoy the dinner. 🍓

💀 reminder for the girlies: this is for encryption-mode. don't come at her expecting checksum-mode energy. different function, different fit.

👑 SEE ALSO 👑

we are so not alone here, this whole little krb5 crypto friend group is giving found family 🫶

the kernel file: ./crypto/krb5/krb5_api.c

and the rest of the crew:

like, she's got a whole group chat and they all ate. periodt. 💅🔥

🧚 sign-off 🧚

this little masterpiece comes courtesy of ./crypto/krb5, dated October 2026, and she's filed under crypto_krb5_...e_encryption(9) because apparently we're abbreviating now and honestly? slay. 🎀✨

okay bye bestie, go encrypt something, ily 💜🦋

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