CRYPT_AES_DIRECT_Encrypt Function

C

int CRYPT_AES_DIRECT_Encrypt(
    CRYPT_AES_CTX* aes, 
    unsigned char* out, 
    const unsigned char* in
);

Description

This function encrypts one block of data, equal to the AES block size.

Preconditions

Key and Initialization Vector (IV) must be set earlier with a call to CRYPT_AES_KeySet and CRYPT_AES_IvSet.

Parameters

Parameters	Description
aes	Pointer to context which saves state between calls.
out	Pointer to buffer to store the results of the encryption.
in	Pointer to buffer where the data to encrypt is located.

Returns

BAD_FUNC_ARG - An invalid pointer was passed to the function.
0 - An invalid pointer was not passed to the function.

Remarks

Input and output buffers must be equal in size (CRYPT_AES_BLOCK_SIZE).

Example

CRYPT_AES_CTX mcAes;
int           ret;
byte          out1[CRYPT_AES_BLOCK_SIZE];

strncpy((char*)key, "1234567890abcdefghijklmnopqrstuv", 32);
strncpy((char*)iv,  "1234567890abcdef", 16);

ret = CRYPT_AES_KeySet(&mcAes, key, 16, iv, CRYPT_AES_ENCRYPTION);
ret = CRYPT_AES_DIRECT_Encrypt(&mcAes, out1, ourData);