known_hosts.h

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#pragma once

 
#include <ascii-chat/crypto/sizes.h>
#include <stdint.h>
#include "../common.h"
#include <stdbool.h>


asciichat_error_t check_known_host(const char *server_ip, uint16_t port,
                                   const uint8_t server_key[ED25519_PUBLIC_KEY_SIZE]);

asciichat_error_t check_known_host_with_key(const char *server_ip, uint16_t port,
                                            const uint8_t server_key[ED25519_PUBLIC_KEY_SIZE],
                                            uint8_t expected_key[ED25519_PUBLIC_KEY_SIZE], bool *has_expected_key);

asciichat_error_t check_known_host_no_identity(const char *server_ip, uint16_t port);



asciichat_error_t add_known_host(const char *server_ip, uint16_t port,
                                 const uint8_t server_key[ED25519_PUBLIC_KEY_SIZE]);

asciichat_error_t remove_known_host(const char *server_ip, uint16_t port);

const char *get_known_hosts_path(void);



bool display_mitm_warning(const char *server_ip, uint16_t port, const uint8_t expected_key[ED25519_PUBLIC_KEY_SIZE],
                          const uint8_t received_key[ED25519_PUBLIC_KEY_SIZE]);

bool prompt_unknown_host(const char *server_ip, uint16_t port, const uint8_t server_key[ED25519_PUBLIC_KEY_SIZE]);

bool prompt_unknown_host_no_identity(const char *server_ip, uint16_t port);



void compute_key_fingerprint(const uint8_t key[ED25519_PUBLIC_KEY_SIZE], char fingerprint[HEX_STRING_SIZE_32]);



void known_hosts_destroy(void);