1/*
2 * Copyright 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef GATEKEEPER_PASSWORD_HANDLE_H_
18#define GATEKEEPER_PASSWORD_HANDLE_H_
19
20#define HANDLE_FLAG_THROTTLE_SECURE 1
21
22#define HANDLE_VERSION_THROTTLE 2
23
24namespace gatekeeper {
25
26typedef uint64_t secure_id_t;
27typedef uint64_t salt_t;
28/**
29 * structure for easy serialization
30 * and deserialization of password handles.
31 */
32static const uint8_t HANDLE_VERSION = 2;
33struct __attribute__ ((__packed__)) password_handle_t {
34    // fields included in signature
35    uint8_t version;
36    secure_id_t user_id;
37    uint64_t flags;
38
39    // fields not included in signature
40    salt_t salt;
41    uint8_t signature[32];
42
43    bool hardware_backed;
44};
45}
46
47#endif // GATEKEEPER_PASSWORD_HANDLE_H_
48