// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023 // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #include "td/telegram/NewPasswordState.h" namespace td { Result<NewPasswordState> get_new_password_state(tl_object_ptr<telegram_api::PasswordKdfAlgo> new_algo, tl_object_ptr<telegram_api::SecurePasswordKdfAlgo> new_secure_algo) { NewPasswordState state; CHECK(new_algo != nullptr); switch (new_algo->get_id()) { case telegram_api::passwordKdfAlgoUnknown::ID: return Status::Error(400, "Please update client to continue"); case telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow::ID: { auto algo = move_tl_object_as<telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow>(new_algo); state.client_salt = algo->salt1_.as_slice().str(); state.server_salt = algo->salt2_.as_slice().str(); state.srp_g = algo->g_; state.srp_p = algo->p_.as_slice().str(); break; } default: UNREACHABLE(); } CHECK(new_secure_algo != nullptr); switch (new_secure_algo->get_id()) { case telegram_api::securePasswordKdfAlgoUnknown::ID: return Status::Error(400, "Please update client to continue"); case telegram_api::securePasswordKdfAlgoSHA512::ID: return Status::Error(500, "Server has sent outdated secret encryption mode"); case telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000::ID: { auto algo = move_tl_object_as<telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000>(new_secure_algo); state.secure_salt = algo->salt_.as_slice().str(); break; } default: UNREACHABLE(); } static constexpr size_t MIN_NEW_SECURE_SALT_SIZE = 8; if (state.secure_salt.size() < MIN_NEW_SECURE_SALT_SIZE) { return Status::Error(500, "New secure salt length too small"); } static constexpr size_t MIN_NEW_SALT_SIZE = 8; if (state.client_salt.size() < MIN_NEW_SALT_SIZE) { return Status::Error(500, "New salt length too small"); } return state; } } // namespace td