int start_CRYPT_transfer(int sock, int keyex, int cryptm, Buffer ipaddr, char *cfn, int tm, Buffer *shdkey, EVP_CIPHER **cipher)
int send_spki_recv_ans(int sock, Buffer mkey, int tm, Buffer *key, EVP_CIPHER *cipher)
Buffer send_algor_recv_spki(int sock, char *algor, int tm, Buffer *key, EVP_CIPHER *cipher)
Buffer recv_mesg_until_end(int sock, int tmm, Buffer *key, EVP_CIPHER *cipher)
int stop_CRYPT_transfer(int sock, int tm, Buffer *shdkey, EVP_CIPHER *cipher)
int send_command_recv_ans(int sock, char *command, int tm, Buffer *key, EVP_CIPHER *cipher)
int check_auth(Buffer ahost, int aport, Buffer userid, Buffer passwd, int chmod, int keyex, int cryptm, char *cfn, int cont)