2 * Copyright (c) 2015, Linaro Limited
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28 #ifndef TEE_FS_KEY_MANAGER_H
29 #define TEE_FS_KEY_MANAGER_H
31 #include <tee_api_types.h>
32 #include <utee_defines.h>
34 #define TEE_FS_KM_CHIP_ID_LENGTH 32
35 #define TEE_FS_KM_HMAC_ALG TEE_ALG_HMAC_SHA256
36 #define TEE_FS_KM_ENC_FEK_ALG TEE_ALG_AES_ECB_NOPAD
37 #define TEE_FS_KM_SSK_SIZE TEE_SHA256_HASH_SIZE
38 #define TEE_FS_KM_TSK_SIZE TEE_SHA256_HASH_SIZE
39 #define TEE_FS_KM_FEK_SIZE 16 /* bytes */
41 TEE_Result tee_fs_generate_fek(uint8_t *encrypted_fek, int fek_size);
42 TEE_Result tee_fs_crypt_block(uint8_t *out, const uint8_t *in, size_t size,
43 uint16_t blk_idx, const uint8_t *encrypted_fek,
44 TEE_OperationMode mode);
46 TEE_Result tee_fs_fek_crypt(TEE_OperationMode mode, const uint8_t *in_key,
47 size_t size, uint8_t *out_key);