void print_bignum_var(BIO *, const BIGNUM *, const char*,
int, unsigned char *);
void print_array(BIO *, const char *, int, const unsigned char *);
void print_bignum_var(BIO *, const BIGNUM *, const char*,
int, unsigned char *);
void print_array(BIO *, const char *, int, const unsigned char *);