#include <time.h>
#include <sys/types.h>
#include <openssl/bio.h>
int test_load_pubkey_from_file(const char *public_keyfile);
int test_load_private_key_from_file(const char *private_keyfile);
EVP_PKEY *load_pubkey_from_file(const char *file);
EVP_PKEY *load_pubkey_from_base64(const char *buffer);
EVP_PKEY *load_privkey_from_file(const char *file);
EVP_PKEY *load_privkey_from_base64(const char *buffer);
int encode_auth_setting(const char *username, const char *password, EVP_PKEY *public_key, char **authtoken, int use_pkcs1_padding);
int decode_auth_setting(int enable_debug, const char *authtoken, EVP_PKEY *private_key, char **username, char **password, time_t *ts, int use_pkcs1_padding);
int check_authentication(const char *username, const char *password, const time_t ts, const char *filename, int skew_threshold);
ssize_t iperf_getpass (char **lineptr, size_t *n, FILE *stream);