int import_encrypted(char *filename, int type, char **comment);
int import_ssh1(char *filename, int type, struct RSAKey *key,char *passphrase);
struct ssh2_userkey *import_ssh2(char *filename, int type, char *passphrase);
int import_encrypted(char *filename, int type, char **comment);
int import_ssh1(char *filename, int type, struct RSAKey *key,char *passphrase);
struct ssh2_userkey *import_ssh2(char *filename, int type, char *passphrase);