1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/*
* Copyright (c) 2015, Linaro Limited
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TEE_FS_KEY_MANAGER_H
#define TEE_FS_KEY_MANAGER_H
#include <tee_api_types.h>
#include <utee_defines.h>
#define TEE_FS_KM_CHIP_ID_LENGTH 32
#define TEE_FS_KM_HMAC_ALG TEE_ALG_HMAC_SHA256
#define TEE_FS_KM_ENC_FEK_ALG TEE_ALG_AES_ECB_NOPAD
#define TEE_FS_KM_SSK_SIZE TEE_SHA256_HASH_SIZE
#define TEE_FS_KM_TSK_SIZE TEE_SHA256_HASH_SIZE
#define TEE_FS_KM_FEK_SIZE 16 /* bytes */
TEE_Result tee_fs_generate_fek(uint8_t *encrypted_fek, int fek_size);
TEE_Result tee_fs_crypt_block(uint8_t *out, const uint8_t *in, size_t size,
uint16_t blk_idx, const uint8_t *encrypted_fek,
TEE_OperationMode mode);
TEE_Result tee_fs_fek_crypt(TEE_OperationMode mode, const uint8_t *in_key,
size_t size, uint8_t *out_key);
#endif
|
