int hex2bin(const char *in, unsigned char *out);
unsigned char *hex2bin_m(const char *in, long *plen);
int do_hex2bn(BIGNUM **pr, const char *in);
int do_bn_print(FILE *out, const BIGNUM *bn);
int do_bn_print_name(FILE *out, const char *name, const BIGNUM *bn);
int parse_line(char **pkw, char **pval, char *linebuf, char *olinebuf);
int hex2bin(const char *in, unsigned char *out);
unsigned char *hex2bin_m(const char *in, long *plen);
int do_hex2bn(BIGNUM **pr, const char *in);
int do_bn_print(FILE *out, const BIGNUM *bn);
int do_bn_print_name(FILE *out, const char *name, const BIGNUM *bn);
int parse_line(char **pkw, char **pval, char *linebuf, char *olinebuf);