BIO_TYPE_CIPHER
BIO *mbio = BIO_find_type(chain, BIO_TYPE_CIPHER);
if (BIO_method_type(in) == BIO_TYPE_CIPHER) {
BIO_TYPE_CIPHER,
BIO_TYPE_CIPHER,
if (ret > 0 && BIO_method_type(tmpmem) == BIO_TYPE_CIPHER) {
if (BIO_method_type(tmpmem) == BIO_TYPE_CIPHER) {