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CRYPTO_CIPHER_SETKEY(9) Programming Interface CRYPTO_CIPHER_SETKEY(9)

NAME

crypto_cipher_setkey - set key for cipher

SYNOPSIS

int crypto_cipher_setkey(struct crypto_cipher * tfm, const u8 * key, unsigned int keylen);

ARGUMENTS

tfm
cipher handle
key
buffer holding the key
keylen
length of the key in bytes

DESCRIPTION

The caller provided key is set for the single block cipher referenced by the cipher handle.
Note, the key length determines the cipher type. Many block ciphers implement different cipher modes depending on the key size, such as AES-128 vs AES-192 vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128 is performed.

RETURN

0 if the setting of the key was successful; < 0 if an error occurred

AUTHORS

Stephan Mueller <smueller@chronox.de>
Author.
Marek Vasut <marek@denx.de>
Author.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.