CRC32_CKSUM_LENGTH
if (outcksum->length < CRC32_CKSUM_LENGTH)
outcksum->length = CRC32_CKSUM_LENGTH;
if (cksum->length == CRC32_CKSUM_LENGTH) {
if (output->length != CRC32_CKSUM_LENGTH)
CRC32_CKSUM_LENGTH,
#define MIT_DES_CBC_CRC_PAD_MINIMUM CRC32_CKSUM_LENGTH