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/*
* Copyright (C) 2013-2023 Sébastien Helleu <flashcode@flashtux.org>
*
* This file is part of WeeChat, the extensible chat client.
*
* WeeChat is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* WeeChat is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with WeeChat. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef WEECHAT_SECURE_H
#define WEECHAT_SECURE_H
#include <time.h>
#define SECURE_ENV_PASSPHRASE "WEECHAT_PASSPHRASE"
#define SECURE_PASSPHRASE_MAX_LENGTH 4096
#define SECURE_SALT_DEFAULT "WeeChat!"
#define SECURE_DATA_PASSPHRASE_FLAG "__passphrase__"
#define SECURE_SALT_SIZE 8
enum t_secure_config_hash_algo
{
SECURE_CONFIG_HASH_SHA224 = 0,
SECURE_CONFIG_HASH_SHA256,
SECURE_CONFIG_HASH_SHA384,
SECURE_CONFIG_HASH_SHA512,
};
enum t_secure_config_cipher
{
SECURE_CONFIG_CIPHER_AES128 = 0,
SECURE_CONFIG_CIPHER_AES192,
SECURE_CONFIG_CIPHER_AES256,
};
extern char *secure_passphrase;
extern struct t_hashtable *secure_hashtable_data;
extern struct t_hashtable *secure_hashtable_data_encrypted;
extern char *secure_hash_algo_string[];
extern int secure_hash_algo[];
extern char *secure_cipher_string[];
extern int secure_cipher[];
extern int secure_data_encrypted;
extern char *secure_decrypt_error[];
extern int secure_encrypt_data (const char *data, int length_data,
int hash_algo, int cipher,
const char *passphrase, char **encrypted,
int *length_encrypted);
extern int secure_decrypt_data (const char *buffer, int length_buffer,
int hash_algo, int cipher,
const char *passphrase, char **decrypted,
int *length_decrypted);
extern int secure_decrypt_data_not_decrypted (const char *passphrase);
extern int secure_init ();
extern void secure_end ();
#endif /* WEECHAT_SECURE_H */
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