crypto_has_cipher(9)

okay so bestie, meet crypto_has_cipher(9) — it’s the kernel API that does a vibe check on exactly one single block cipher. Literally a search for the availability of a single block cipher, no cap. 💅✨

🌸 NAME 🌸

crypto_has_cipher — search for the availability of a single block cipher. That’s it, that’s the assignment. 🎀

✨ SYNOPSIS ✨

int crypto_has_cipher (const char *alg_name , u32 type , u32 mask );

🦋 ARGUMENTS 🦋

• alg_name — is the cra_name / name or cra_driver_name / driver name of the single block cipher. Name or driver name, pick your fighter. 🫶
• type — specifies the type of the cipher. Type check, but make it cipher. ✨
• mask — specifies the mask for the cipher. Mask on, bestie. 🎭

🔥 RETURN 🔥

It’s giving true when the single block cipher is known to the kernel crypto API; false otherwise. That’s the whole verdict, fr fr. 👑

🌈 SEE ALSO 🌈

• Kernel file ./include/crypto/internal/cipher.h
• Single Block Cipher API(9)
• crypto_alloc_cipher(9)
• crypto_free_cipher(9)
• crypto_cipher_blocksize(9)
• crypto_cipher_setkey(9)
• crypto_cipher_encrypt_one(9)
• crypto_cipher_decrypt_one(9)

Go read the whole friend group, bestie. 📚💖

later, legend — source/version: ./include/crypto/internal, dated October 2026. 🧚💜