59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
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//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/telegram/NewPasswordState.h"
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namespace td {
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Result<NewPasswordState> get_new_password_state(
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tl_object_ptr<telegram_api::PasswordKdfAlgo> new_algo,
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tl_object_ptr<telegram_api::SecurePasswordKdfAlgo> new_secure_algo) {
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NewPasswordState state;
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CHECK(new_algo != nullptr);
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switch (new_algo->get_id()) {
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case telegram_api::passwordKdfAlgoUnknown::ID:
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return Status::Error(400, "Please update client to continue");
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case telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow::ID: {
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auto algo =
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move_tl_object_as<telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow>(new_algo);
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state.client_salt = algo->salt1_.as_slice().str();
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state.server_salt = algo->salt2_.as_slice().str();
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state.srp_g = algo->g_;
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state.srp_p = algo->p_.as_slice().str();
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break;
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}
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default:
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UNREACHABLE();
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}
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CHECK(new_secure_algo != nullptr);
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switch (new_secure_algo->get_id()) {
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case telegram_api::securePasswordKdfAlgoUnknown::ID:
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return Status::Error(400, "Please update client to continue");
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case telegram_api::securePasswordKdfAlgoSHA512::ID:
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return Status::Error(500, "Server has sent outdated secret encryption mode");
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case telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000::ID: {
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auto algo = move_tl_object_as<telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000>(new_secure_algo);
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state.secure_salt = algo->salt_.as_slice().str();
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break;
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}
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default:
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UNREACHABLE();
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}
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static constexpr size_t MIN_NEW_SECURE_SALT_SIZE = 8;
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if (state.secure_salt.size() < MIN_NEW_SECURE_SALT_SIZE) {
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return Status::Error(500, "New secure salt length too small");
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}
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static constexpr size_t MIN_NEW_SALT_SIZE = 8;
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if (state.client_salt.size() < MIN_NEW_SALT_SIZE) {
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return Status::Error(500, "New salt length too small");
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}
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return state;
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}
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} // namespace td
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