//SSL METHODS
#include <openssl/ssl.h>

int SSL_library_init(void);
SSL_CTX *SSL_CTX_new(SSL_METHOD *method);
SSL *SSL_new(SSL_CTX *ctx);
int SSL_set_fd(SSL *ssl, int fd);

int SSL_accept(SSL *ssl);
int SSL_connect(SSL *ssl);

int SSL_read(SSL *ssl, void *buf, int num);
int SSL_write(SSL *ssl, const void *buf, int num);

int SSL_shutdown(SSL *ssl);

//RSA METHODS
#include <openssl/rsa.h>
#include <openssl/engine.h>

RSA * RSA_new(void);
RSA *RSA_generate_key(int num, unsigned long e,
    void (*callback)(int,int,void *), void *cb_arg);

int RSA_public_encrypt(int flen, unsigned char *from,
    unsigned char *to, RSA *rsa, int padding);
int RSA_private_decrypt(int flen, unsigned char *from,
     unsigned char *to, RSA *rsa, int padding);

int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
    unsigned char *sigret, unsigned int *siglen, RSA *rsa);
int RSA_verify(int type, const unsigned char *m, unsigned int m_len,
    unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
    
void RSA_free(RSA *rsa);