/* Set flag field to default value */
AESctx.mFlags = E_SK_DEFAULT;
/* Set key size to 32 (corresponding to AES-256) */
AESctx.mKeySize = 32;
/* Initialize the operation, by passing the key.
* Third parameter is NULL because ECB doesn't use any IV */
error_status = AES_ECB_Encrypt_Init(&AESctx, AES256_Key, NULL );
/* check for initialization errors */
if (error_status == AES_SUCCESS)
{
/* Encrypt Data */
error_status = AES_ECB_Encrypt_Append(&AESctx,
InputMessage,
InputMessageLength,
OutputMessage,
&outputLength);
if (error_status == AES_SUCCESS)
{
/* Write the number of data written*/
*OutputMessageLength = outputLength;
/* Do the Finalization */
error_status = AES_ECB_Encrypt_Finish(&AESctx, OutputMessage + *OutputMessageLength, &outputLength);
/* Add data written to the information to be returned */
*OutputMessageLength += outputLength;
}
}
/* Set flag field to default value */
AESctx.mFlags = E_SK_DEFAULT;
/* Set key size to 32 (corresponding to AES-256) */
AESctx.mKeySize = 32;
/* Initialize the operation, by passing the key.
* Third parameter is NULL because ECB doesn't use any IV */
error_status = AES_ECB_Decrypt_Init(&AESctx, AES256_Key, NULL );
/* check for initialization errors */
if (error_status == AES_SUCCESS)
{
/* Decrypt Data */
error_status = AES_ECB_Decrypt_Append(&AESctx,
InputMessage,
InputMessageLength,
OutputMessage,
&outputLength);
if (error_status == AES_SUCCESS)
{
/* Write the number of data written*/
*OutputMessageLength = outputLength;
/* Do the Finalization */
error_status = AES_ECB_Decrypt_Finish(&AESctx, OutputMessage + *OutputMessageLength, &outputLength);
/* Add data written to the information to be returned */
*OutputMessageLength += outputLength;
}
}
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