discovery_keys.h

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#pragma once
 
#include <ascii-chat/crypto/sizes.h>
#include "../asciichat_errno.h"
#include "../common.h"
#include "../network/acip/acds.h"
#include <stdbool.h>
#include <stdint.h>
 
#ifdef __cplusplus
extern "C" {
#endif

#define ACDS_OFFICIAL_SERVER ACDS_OFFICIAL_SERVER_HOSTNAME

#define ACDS_OFFICIAL_KEY_SSH_URL "https://discovery.ascii-chat.com/key.pub"
#define ACDS_OFFICIAL_KEY_GPG_URL "https://discovery.ascii-chat.com/key.gpg"

#define ACDS_KEYS_CACHE_DIR "acds_keys"

ASCIICHAT_API asciichat_error_t discovery_keys_verify(const char *acds_server, const char *key_spec,
                                                      uint8_t pubkey_out[ED25519_PUBLIC_KEY_SIZE]);

ASCIICHAT_API asciichat_error_t discovery_keys_download_https(const char *url,
                                                              uint8_t pubkey_out[ED25519_PUBLIC_KEY_SIZE]);

ASCIICHAT_API asciichat_error_t discovery_keys_load_file(const char *file_path,
                                                         uint8_t pubkey_out[ED25519_PUBLIC_KEY_SIZE]);

ASCIICHAT_API asciichat_error_t discovery_keys_get_cache_path(const char *acds_server, char *path_out,
                                                              size_t path_size);

ASCIICHAT_API asciichat_error_t discovery_keys_load_cached(const char *acds_server,
                                                           uint8_t pubkey_out[ED25519_PUBLIC_KEY_SIZE]);

ASCIICHAT_API asciichat_error_t discovery_keys_save_cached(const char *acds_server,
                                                           const uint8_t pubkey[ED25519_PUBLIC_KEY_SIZE]);

ASCIICHAT_API asciichat_error_t discovery_keys_verify_change(const char *acds_server,
                                                             const uint8_t old_pubkey[ED25519_PUBLIC_KEY_SIZE],
                                                             const uint8_t new_pubkey[ED25519_PUBLIC_KEY_SIZE]);

ASCIICHAT_API asciichat_error_t discovery_keys_clear_cache(const char *acds_server);
 
#ifdef __cplusplus
}
#endif