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/*
* encrypt.h
*
* Encryption-related definitions for user space suspend and resume
* tools.
*
* Copyright (C) 2006 Rafael J. Wysocki <rjw@sisk.pl>
*
* This file is released under the GPLv2.
*
*/
#ifdef CONFIG_ENCRYPT
#include <gcrypt.h>
/* Maximum length of a passphrase, in characters */
#define PASS_SIZE 128
/* Symmetric cipher used for image encryption, the size of its key and its
* block, in bytes
*/
#define IMAGE_CIPHER GCRY_CIPHER_BLOWFISH
#define KEY_SIZE 16
#define CIPHER_BLOCK 8
/* Symmetric cipher used for encrypting RSA private keys, the size of its key
* and its block, in bytes
*/
#define PK_CIPHER GCRY_CIPHER_AES
#define PK_KEY_SIZE 16
#define PK_CIPHER_BLOCK 16
/* Auxiliary constants */
#define RSA_DATA_SIZE 3072
#define KEY_DATA_SIZE 1000
#define RSA_FIELDS 6
#define RSA_FIELDS_PUB 2
#define KEY_TEST_SIZE 8
#define KEY_TEST_DATA (unsigned char *)"12345678"
struct RSA_data {
char field[RSA_FIELDS][2];
unsigned short size[RSA_FIELDS];
unsigned char key_test[KEY_TEST_SIZE];
unsigned char data[RSA_DATA_SIZE];
};
struct encrypted_key {
unsigned short size;
unsigned char data[KEY_DATA_SIZE];
};
struct key_data {
unsigned char key[KEY_SIZE];
unsigned char ivec[CIPHER_BLOCK];
struct RSA_data rsa;
struct encrypted_key encrypted_key;
};
void read_password(char *pass_buf, int vrfy);
void encrypt_init(unsigned char *, unsigned char *, char *);
void get_random_salt(unsigned char *salt, size_t size);
#define KEY_FILE ""
#endif
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