205                           const std::string& salt, std::string* stretched) {  in stretchSecret()  argument
224                           reinterpret_cast<const uint8_t*>(salt.data()), salt.size(),  in stretchSecret()
238                           const std::string& salt, const std::string& secdiscardable,  in generateAppId()  argument
241     if (!stretchSecret(stretching, auth.secret, salt, &stretched)) return false;  in generateAppId()
261     std::string salt;  in storeKey()  local
263         if (ReadRandomBytes(SALT_BYTES, salt) != OK) {  in storeKey()
267         if (!writeStringToFile(salt, dir + "/" + kFn_salt)) return false;  in storeKey()
270     if (!generateAppId(auth, stretching, salt, secdiscardable, &appId)) return false;  in storeKey()
293     std::string salt;  in retrieveKey()  local
295         if (!readFileToString(dir + "/" + kFn_salt, &salt)) return false;  in retrieveKey()
298     if (!generateAppId(auth, stretching, salt, secdiscardable, &appId)) return false;  in retrieveKey()