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Side by Side Diff: src/platform/cryptohome/cryptohome_common.h

Issue 2051003: Initial patch from Will. (Closed) Base URL: ssh://git@chromiumos-git/chromiumos
Patch Set: Address style nits. Created 10 years, 6 months ago
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1 // Copyright (c) 2009-2010 The Chromium OS Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef CRYPTOHOME_COMMON_H_
6 #define CRYPTOHOME_COMMON_H_
7
8 extern "C" {
9 #include <ecryptfs.h>
10 }
11
12 namespace cryptohome {
13
14 // The default symmetric key size for cryptohome is the ecryptfs default
15 #define CRYPTOHOME_DEFAULT_KEY_SIZE ECRYPTFS_MAX_KEY_BYTES
16 #define CRYPTOHOME_DEFAULT_KEY_SIGNATURE_SIZE ECRYPTFS_SIG_SIZE
17 #define CRYPTOHOME_DEFAULT_KEY_SALT_SIZE ECRYPTFS_SALT_SIZE
18 #define CRYPTOHOME_AES_KEY_BYTES ECRYPTFS_AES_KEY_BYTES
19 // The default salt length for the user salt
20 #define CRYPTOHOME_DEFAULT_SALT_LENGTH 16
21 // Macros for min and max
22 #define CRYPTOHOME_MIN(X, Y) (((X) < (Y)) ? (X) : (Y))
mschilder 2010/05/27 04:20:18 These are scary of course, double eval of argument
23 #define CRYPTOHOME_MAX(X, Y) (((X) > (Y)) ? (X) : (Y))
24
25 struct VaultKeysetHeader {
26 char signature[2];
27 unsigned char major_version;
28 unsigned char minor_version;
29 } __attribute__((__packed__));
30 typedef struct VaultKeysetHeader VaultKeysetHeader;
31
32 struct VaultKeysetKeys {
33 unsigned char fek[CRYPTOHOME_DEFAULT_KEY_SIZE];
34 unsigned char fek_sig[CRYPTOHOME_DEFAULT_KEY_SIGNATURE_SIZE];
35 unsigned char fek_salt[CRYPTOHOME_DEFAULT_KEY_SALT_SIZE];
36 unsigned char fnek[CRYPTOHOME_DEFAULT_KEY_SIZE];
37 unsigned char fnek_sig[CRYPTOHOME_DEFAULT_KEY_SIGNATURE_SIZE];
38 unsigned char fnek_salt[CRYPTOHOME_DEFAULT_KEY_SALT_SIZE];
39 } __attribute__((__packed__));
40 typedef struct VaultKeysetKeys VaultKeysetKeys;
41
42 } // cryptohome
43
44 #endif // CRYPTOHOME_COMMON_H_
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