Expand a user key into an AES encryption key schedule (deprecated; prefer EVP).

Synopsis

Declared in <openssl/aes.h>

[[deprecated]]
int
AES_set_encrypt_key(
    unsigned char const* userKey,
    int const bits,
    AES_KEY* key);
Warning

Deprecated. Use of this entity is allowed but discouraged.

Return Value

0 on success, or a negative value on error.

Parameters

Name

Description

userKey

Raw AES key bytes (16, 24, or 32 bytes for 128/192/256‐bit).

bits

Key length in bits (128, 192, or 256).

key

Destination expanded key schedule for AES_encrypt() and encrypting modes.

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