212     auto blob_file = dir + "/" + kFn_keymaster_key_blob;  in CommitUpgradedKey()  local
216     if (!readFileToString(blob_file, &blob)) return false;  in CommitUpgradedKey()
218     if (rename(upgraded_blob_file.c_str(), blob_file.c_str()) != 0) {  in CommitUpgradedKey()
219         PLOG(ERROR) << "Failed to rename " << upgraded_blob_file << " to " << blob_file;  in CommitUpgradedKey()
226         LOG(WARNING) << "Failed to delete old key " << blob_file  in CommitUpgradedKey()
328     auto blob_file = dir + "/" + kFn_keymaster_key_blob;  in BeginKeystoreOp()  local
337                 << blob_file  in BeginKeystoreOp()
342         if (!readFileToString(blob_file, &blob)) return KeystoreOperation();  in BeginKeystoreOp()
356     LOG(INFO) << "Upgrading key: " << blob_file;  in BeginKeystoreOp()
365         LOG(INFO) << "Key upgraded: " << blob_file;  in BeginKeystoreOp()
626 static bool DeleteKeystoreKey(const std::string& blob_file) {  in DeleteKeystoreKey()  argument
628     if (!readFileToString(blob_file, &blob)) return false;  in DeleteKeystoreKey()
631     LOG(DEBUG) << "Deleting key " << blob_file << " from Keystore";  in DeleteKeystoreKey()
669         auto blob_file = dir + "/" + fn;  in destroyKey()  local
670         if (pathExists(blob_file)) {  in destroyKey()
671             success &= DeleteKeystoreKey(blob_file);  in destroyKey()
672             secdiscard_cmd.push_back(blob_file);  in destroyKey()