+int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
+void RSA_blinding_off(RSA *rsa);
+
+int RSA_padding_add_PKCS1_type_1(unsigned char *to,int tlen,
+ unsigned char *f,int fl);
+int RSA_padding_check_PKCS1_type_1(unsigned char *to,int tlen,
+ unsigned char *f,int fl,int rsa_len);
+int RSA_padding_add_PKCS1_type_2(unsigned char *to,int tlen,
+ unsigned char *f,int fl);
+int RSA_padding_check_PKCS1_type_2(unsigned char *to,int tlen,
+ unsigned char *f,int fl,int rsa_len);
+int RSA_padding_add_SSLv23(unsigned char *to,int tlen,
+ unsigned char *f,int fl);
+int RSA_padding_check_SSLv23(unsigned char *to,int tlen,
+ unsigned char *f,int fl,int rsa_len);
+int RSA_padding_add_none(unsigned char *to,int tlen,
+ unsigned char *f,int fl);
+int RSA_padding_check_none(unsigned char *to,int tlen,
+ unsigned char *f,int fl,int rsa_len);
+
+int RSA_get_ex_new_index(long argl, char *argp, int (*new_func)(),
+ int (*dup_func)(), void (*free_func)());
+int RSA_set_ex_data(RSA *r,int idx,char *arg);
+char *RSA_get_ex_data(RSA *r, int idx);
+