crypto_des_verify_key(9)

💅 crypto_des_verify_key(9) — like, the Kernel API Manual page you actually wanna read

okay so bestie, welcome to crypto_des_verify_key(9), straight out of the Kernel API Manual ✨ this one's a little baby function with one (1) job and honestly? she ate. let's get into it 🎀

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🌸 NAME 🌸

crypto_des_verify_key — checks whether a DES key is weak 🔍💀

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✨ SYNOPSIS ✨

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

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🦋 ARGUMENTS 🦋

• tfm — the crypto algo, aka the main character of this whole situation 👑
• key — the key buffer, where the key itself lives 🗝️

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💖 DESCRIPTION 💖

so here's the tea ☕ — this function returns -EINVAL if the key is weak and the crypto TFM does not permit weak keys. otherwise? you get 0. slay, simple. ✨

ngl though, there's a little responsibility clause here: it is the job of the caller to ensure that the size of the key equals DES_KEY_SIZE. so like, do your homework before you call her, bestie 🫶 not me stressing about buffer sizes 😭

fr fr, double-check that key length yourself — this function is not doing it for you 💅

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🔥 SEE ALSO 🔥

• Kernel file ./include/crypto/internal/des.h 📁
• crypto_des3_ede_verify_key(9) — her 3DES cousin, icons only 🌈

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aaaaand that's the whole page, periodt. 🎀 this cutie lives in ./include/crypto/internal and the manual's dated October 2026 — so like, mark your calendars, iykyk 📅💜 mwah, go verify some keys responsibly 🧚‍♀️⭐