246 bool storeKey(const std::string& dir, const KeyAuthentication& auth, const std::string& key) {  in storeKey()  argument
247     if (TEMP_FAILURE_RETRY(mkdir(dir.c_str(), 0700)) == -1) {  in storeKey()
248         PLOG(ERROR) << "key mkdir " << dir;  in storeKey()
251     if (!writeStringToFile(kCurrentVersion, dir + "/" + kFn_version)) return false;  in storeKey()
258     if (!writeStringToFile(secdiscardable, dir + "/" + kFn_secdiscardable)) return false;  in storeKey()
260     if (!writeStringToFile(stretching, dir + "/" + kFn_stretching)) return false;  in storeKey()
267         if (!writeStringToFile(salt, dir + "/" + kFn_salt)) return false;  in storeKey()
275     if (!writeStringToFile(kmKey, dir + "/" + kFn_keymaster_key_blob)) return false;  in storeKey()
278     if (!writeStringToFile(encryptedKey, dir + "/" + kFn_encrypted_key)) return false;  in storeKey()
282 bool retrieveKey(const std::string& dir, const KeyAuthentication& auth, std::string* key) {  in retrieveKey()  argument
284     if (!readFileToString(dir + "/" + kFn_version, &version)) return false;  in retrieveKey()
290     if (!readFileToString(dir + "/" + kFn_secdiscardable, &secdiscardable)) return false;  in retrieveKey()
292     if (!readFileToString(dir + "/" + kFn_stretching, &stretching)) return false;  in retrieveKey()
295         if (!readFileToString(dir + "/" + kFn_salt, &salt)) return false;  in retrieveKey()
300     if (!readFileToString(dir + "/" + kFn_keymaster_key_blob, &kmKey)) return false;  in retrieveKey()
302     if (!readFileToString(dir + "/" + kFn_encrypted_key, &encryptedMessage)) return false;  in retrieveKey()
308 static bool deleteKey(const std::string& dir) {  in deleteKey()  argument
310     if (!readFileToString(dir + "/" + kFn_keymaster_key_blob, &kmKey)) return false;  in deleteKey()
317 static bool secdiscardSecdiscardable(const std::string& dir) {  in secdiscardSecdiscardable()  argument
319             std::vector<std::string>{kSecdiscardPath, "--", dir + "/" + kFn_secdiscardable}) != 0) {  in secdiscardSecdiscardable()
326 static bool recursiveDeleteKey(const std::string& dir) {  in recursiveDeleteKey()  argument
327     if (ForkExecvp(std::vector<std::string>{kRmPath, "-rf", dir}) != 0) {  in recursiveDeleteKey()
334 bool destroyKey(const std::string& dir) {  in destroyKey()  argument
337     success &= deleteKey(dir);  in destroyKey()
338     success &= secdiscardSecdiscardable(dir);  in destroyKey()
339     success &= recursiveDeleteKey(dir);  in destroyKey()