diff options
Diffstat (limited to 'src/wallet/wallet2.cpp')
| -rw-r--r-- | src/wallet/wallet2.cpp | 89 |
1 files changed, 88 insertions, 1 deletions
diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp index 1550787e5..be4ad93a5 100644 --- a/src/wallet/wallet2.cpp +++ b/src/wallet/wallet2.cpp @@ -92,6 +92,8 @@ using namespace cryptonote; ioservice.stop(); \ } while(0) +#define KEY_IMAGE_EXPORT_FILE_MAGIC "Monero key image export\002" + namespace { // Create on-demand to prevent static initialization order fiasco issues. @@ -3083,7 +3085,7 @@ bool wallet2::sign_tx(const std::string &unsigned_filename, const std::string &s { return false; } - LOG_PRINT_L2("Saving signed tx data: " << oss.str()); + LOG_PRINT_L3("Saving signed tx data: " << oss.str()); return epee::file_io_utils::save_string_to_file(signed_filename, std::string(SIGNED_TX_PREFIX) + oss.str()); } //---------------------------------------------------------------------------------------------------- @@ -4778,6 +4780,27 @@ crypto::public_key wallet2::get_tx_pub_key_from_received_outs(const tools::walle "Public key yielding at least one output wasn't found in the transaction extra"); return cryptonote::null_pkey; } + +bool wallet2::export_key_images(const std::string filename) +{ + std::vector<std::pair<crypto::key_image, crypto::signature>> ski = export_key_images(); + std::string magic(KEY_IMAGE_EXPORT_FILE_MAGIC, strlen(KEY_IMAGE_EXPORT_FILE_MAGIC)); + const cryptonote::account_public_address &keys = get_account().get_keys().m_account_address; + + std::string data; + data += std::string((const char *)&keys.m_spend_public_key, sizeof(crypto::public_key)); + data += std::string((const char *)&keys.m_view_public_key, sizeof(crypto::public_key)); + for (const auto &i: ski) + { + data += std::string((const char *)&i.first, sizeof(crypto::key_image)); + data += std::string((const char *)&i.second, sizeof(crypto::signature)); + } + + // encrypt data, keep magic plaintext + std::string ciphertext = encrypt_with_view_secret_key(data); + return epee::file_io_utils::save_string_to_file(filename, magic + ciphertext); +} + //---------------------------------------------------------------------------------------------------- std::vector<std::pair<crypto::key_image, crypto::signature>> wallet2::export_key_images() const { @@ -4828,6 +4851,70 @@ std::vector<std::pair<crypto::key_image, crypto::signature>> wallet2::export_key } return ski; } + +uint64_t wallet2::import_key_images(const std::string &filename, uint64_t &spent, uint64_t &unspent) +{ + std::string data; + bool r = epee::file_io_utils::load_file_to_string(filename, data); + + if (!r) + { + fail_msg_writer() << tr("failed to read file ") << filename; + return 0; + } + const size_t magiclen = strlen(KEY_IMAGE_EXPORT_FILE_MAGIC); + if (data.size() < magiclen || memcmp(data.data(), KEY_IMAGE_EXPORT_FILE_MAGIC, magiclen)) + { + fail_msg_writer() << "Bad key image export file magic in " << filename; + return 0; + } + + try + { + data = decrypt_with_view_secret_key(std::string(data, magiclen)); + } + catch (const std::exception &e) + { + fail_msg_writer() << "Failed to decrypt " << filename << ": " << e.what(); + return 0; + } + + const size_t headerlen = 2 * sizeof(crypto::public_key); + if (data.size() < headerlen) + { + fail_msg_writer() << "Bad data size from file " << filename; + return 0; + } + const crypto::public_key &public_spend_key = *(const crypto::public_key*)&data[0]; + const crypto::public_key &public_view_key = *(const crypto::public_key*)&data[sizeof(crypto::public_key)]; + const cryptonote::account_public_address &keys = get_account().get_keys().m_account_address; + if (public_spend_key != keys.m_spend_public_key || public_view_key != keys.m_view_public_key) + { + fail_msg_writer() << "Key images from " << filename << " are for a different account"; + return 0; + } + + const size_t record_size = sizeof(crypto::key_image) + sizeof(crypto::signature); + if ((data.size() - headerlen) % record_size) + { + fail_msg_writer() << "Bad data size from file " << filename; + return 0; + } + size_t nki = (data.size() - headerlen) / record_size; + + std::vector<std::pair<crypto::key_image, crypto::signature>> ski; + ski.reserve(nki); + for (size_t n = 0; n < nki; ++n) + { + crypto::key_image key_image = *reinterpret_cast<const crypto::key_image*>(&data[headerlen + n * record_size]); + crypto::signature signature = *reinterpret_cast<const crypto::signature*>(&data[headerlen + n * record_size + sizeof(crypto::key_image)]); + + ski.push_back(std::make_pair(key_image, signature)); + } + + return import_key_images(ski, spent, unspent); +} + //---------------------------------------------------------------------------------------------------- uint64_t wallet2::import_key_images(const std::vector<std::pair<crypto::key_image, crypto::signature>> &signed_key_images, uint64_t &spent, uint64_t &unspent) { |