crypto_des3_ede_verify_key(9)

💖 NAME 💖

okay so bestie, welcome to the crypto_des3_ede_verify_key(9) page from the Kernel API Manual 🫶 and the name is literally crypto_des3_ede_verify_key — Check whether a DES3-EDE key is weak 💅 periodt.

✨ SYNOPSIS ✨

int crypto_des3_ede_verify_key (struct crypto_tfm *tfm , const u8 *key
);

copy that exactly, no cap — spaces, punctuation, the whole vibe 🌟.

🎀 ARGUMENTS 🎀

• tfm — the crypto algo 💫
• key — the key buffer 🗝️

🌸 DESCRIPTION 🌸

okay so here's the actual vibe check: it returns -EINVAL if the key is weak and the crypto TFM does not permit weak keys, or when running in FIPS mode 😭. Otherwise, 0 is returned ✨.

Note that some keys are rejected in FIPS mode even if weak keys are permitted by the TFM flags 👀 — yes, even then. FIPS said nope, fr fr.

Also, bestie, it is the job of the caller to ensure that the size of the key equals DES3_EDE_KEY_SIZE 💅. that one is on the caller, not the function. don't skip it 🫶.

🦋 SEE ALSO 🦋

• Kernel file ./include/crypto/internal/des.h
• crypto_des_verify_key(9)

with all my love from source/version ./include/crypto/internal, dated October 2026 — crypto_des3_ede_verify_key(9) out 👑💖