static int surewarehk_rsa_priv_dec(int flen,const unsigned char *from,unsigned char *to,
RSA *rsa,int padding);
static int surewarehk_rsa_sign(int flen,const unsigned char *from,unsigned char *to,
RSA *rsa,int padding);
static int surewarehk_rsa_priv_dec(int flen,const unsigned char *from,unsigned char *to,
RSA *rsa,int padding);
static int surewarehk_rsa_sign(int flen,const unsigned char *from,unsigned char *to,
RSA *rsa,int padding);