mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
59 lines
2.4 KiB
C++
59 lines
2.4 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#include "DecryptedKey.h"
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#include "tonlib/keys/EncryptedKey.h"
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#include "tonlib/keys/SimpleEncryption.h"
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#include "td/utils/Random.h"
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#include "td/utils/crypto.h"
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namespace tonlib {
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DecryptedKey::DecryptedKey(const Mnemonic &mnemonic)
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: mnemonic_words(mnemonic.get_words()), private_key(mnemonic.to_private_key()) {
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}
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DecryptedKey::DecryptedKey(std::vector<td::SecureString> mnemonic_words, td::Ed25519::PrivateKey key)
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: mnemonic_words(std::move(mnemonic_words)), private_key(std::move(key)) {
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}
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DecryptedKey::DecryptedKey(RawDecryptedKey key)
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: DecryptedKey(std::move(key.mnemonic_words), td::Ed25519::PrivateKey(key.private_key.copy())) {
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}
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EncryptedKey DecryptedKey::encrypt(td::Slice local_password, td::Slice old_secret) const {
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td::SecureString secret(32);
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if (old_secret.size() == td::as_slice(secret).size()) {
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secret.as_mutable_slice().copy_from(old_secret);
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} else {
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td::Random::secure_bytes(secret.as_mutable_slice());
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}
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td::SecureString decrypted_secret = SimpleEncryption::combine_secrets(secret, local_password);
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td::SecureString encryption_secret =
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SimpleEncryption::kdf(as_slice(decrypted_secret), "TON local key", EncryptedKey::PBKDF_ITERATIONS);
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std::vector<td::SecureString> mnemonic_words_copy;
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for (auto &w : mnemonic_words) {
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mnemonic_words_copy.push_back(w.copy());
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}
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auto data = td::serialize_secure(RawDecryptedKey{std::move(mnemonic_words_copy), private_key.as_octet_string()});
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auto encrypted_data = SimpleEncryption::encrypt_data(data, as_slice(encryption_secret));
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return EncryptedKey{std::move(encrypted_data), private_key.get_public_key().move_as_ok(), std::move(secret)};
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}
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} // namespace tonlib
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