331 static int get_derived_key(u8 *derived_key, enum derived_key_type key_type,  in get_derived_key()  argument
352 	sha256(derived_buf, derived_buf_len, derived_key);  in get_derived_key()
427 			       const u8 *derived_key,  in derived_key_encrypt()  argument
440 	req = init_skcipher_req(derived_key, derived_keylen);  in derived_key_encrypt()
471 	u8 derived_key[HASH_SIZE];  in datablob_hmac_append()  local
475 	ret = get_derived_key(derived_key, AUTH_KEY, master_key, master_keylen);  in datablob_hmac_append()
480 	hmac_sha256_usingrawkey(derived_key, sizeof(derived_key),  in datablob_hmac_append()
485 	memzero_explicit(derived_key, sizeof(derived_key));  in datablob_hmac_append()
494 	u8 derived_key[HASH_SIZE];  in datablob_hmac_verify()  local
500 	ret = get_derived_key(derived_key, AUTH_KEY, master_key, master_keylen);  in datablob_hmac_verify()
511 	hmac_sha256_usingrawkey(derived_key, sizeof(derived_key), p, len,  in datablob_hmac_verify()
523 	memzero_explicit(derived_key, sizeof(derived_key));  in datablob_hmac_verify()
528 			       const u8 *derived_key,  in derived_key_decrypt()  argument
546 	req = init_skcipher_req(derived_key, derived_keylen);  in derived_key_decrypt()
658 	u8 derived_key[HASH_SIZE];  in encrypted_key_decrypt()  local
697 	ret = get_derived_key(derived_key, ENC_KEY, master_key, master_keylen);  in encrypted_key_decrypt()
701 	ret = derived_key_decrypt(epayload, derived_key, sizeof derived_key);  in encrypted_key_decrypt()
707 	memzero_explicit(derived_key, sizeof(derived_key));  in encrypted_key_decrypt()
913 	char derived_key[HASH_SIZE];  in encrypted_read()  local
932 	ret = get_derived_key(derived_key, ENC_KEY, master_key, master_keylen);  in encrypted_read()
936 	ret = derived_key_encrypt(epayload, derived_key, sizeof derived_key);  in encrypted_read()
952 	memzero_explicit(derived_key, sizeof(derived_key));  in encrypted_read()
961 	memzero_explicit(derived_key, sizeof(derived_key));  in encrypted_read()