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wallet: use raw encrypted data in multisig import/export RPC

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moneromooo-monero 2017-11-13 16:24:42 +00:00
parent 2fa707d1a5
commit 31a97e761e
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GPG key ID: 686F07454D6CEFC3
5 changed files with 73 additions and 163 deletions
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61
src/wallet/wallet2.cpp
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@ -103,6 +103,8 @@ using namespace cryptonote;
#define KEY_IMAGE_EXPORT_FILE_MAGIC "Monero key image export\002"
#define MULTISIG_EXPORT_FILE_MAGIC "Monero multisig export\001"
namespace
{
// Create on-demand to prevent static initialization order fiasco issues.
@ -8421,7 +8423,7 @@ crypto::key_image wallet2::get_multisig_composite_key_image(size_t n) const
return ki;
}
//----------------------------------------------------------------------------------------------------
std::vector<tools::wallet2::multisig_info> wallet2::export_multisig()
cryptonote::blobdata wallet2::export_multisig()
{
std::vector<tools::wallet2::multisig_info> info;
@ -8456,7 +8458,19 @@ std::vector<tools::wallet2::multisig_info> wallet2::export_multisig()
info[n].m_signer = signer;
}
return info;
std::stringstream oss;
boost::archive::portable_binary_oarchive ar(oss);
ar << info;
std::string magic(MULTISIG_EXPORT_FILE_MAGIC, strlen(MULTISIG_EXPORT_FILE_MAGIC));
const cryptonote::account_public_address &keys = get_account().get_keys().m_account_address;
std::string header;
header += std::string((const char *)&keys.m_spend_public_key, sizeof(crypto::public_key));
header += std::string((const char *)&keys.m_view_public_key, sizeof(crypto::public_key));
header += std::string((const char *)&signer, sizeof(crypto::public_key));
std::string ciphertext = encrypt_with_view_secret_key(header + oss.str());
return MULTISIG_EXPORT_FILE_MAGIC + ciphertext;
}
//----------------------------------------------------------------------------------------------------
void wallet2::update_multisig_rescan_info(const std::vector<std::vector<rct::key>> &multisig_k, const std::vector<std::vector<tools::wallet2::multisig_info>> &info, size_t n)
@ -8480,9 +8494,50 @@ void wallet2::update_multisig_rescan_info(const std::vector<std::vector<rct::key
m_key_images[td.m_key_image] = n;
}
//----------------------------------------------------------------------------------------------------
size_t wallet2::import_multisig(std::vector<std::vector<tools::wallet2::multisig_info>> info)
size_t wallet2::import_multisig(std::vector<cryptonote::blobdata> blobs)
{
CHECK_AND_ASSERT_THROW_MES(m_multisig, "Wallet is not multisig");
std::vector<std::vector<tools::wallet2::multisig_info>> info;
std::unordered_set<crypto::public_key> seen;
for (cryptonote::blobdata &data: blobs)
{
const size_t magiclen = strlen(MULTISIG_EXPORT_FILE_MAGIC);
THROW_WALLET_EXCEPTION_IF(data.size() < magiclen || memcmp(data.data(), MULTISIG_EXPORT_FILE_MAGIC, magiclen),
error::wallet_internal_error, "Bad multisig info file magic in ");
data = decrypt_with_view_secret_key(std::string(data, magiclen));
const size_t headerlen = 3 * sizeof(crypto::public_key);
THROW_WALLET_EXCEPTION_IF(data.size() < headerlen, error::wallet_internal_error, "Bad data size");
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 crypto::public_key &signer = *(const crypto::public_key*)&data[2*sizeof(crypto::public_key)];
const cryptonote::account_public_address &keys = get_account().get_keys().m_account_address;
THROW_WALLET_EXCEPTION_IF(public_spend_key != keys.m_spend_public_key || public_view_key != keys.m_view_public_key,
error::wallet_internal_error, "Multisig info is for a different account");
if (get_multisig_signer_public_key() == signer)
{
MINFO("Multisig info from this wallet ignored");
continue;
}
if (seen.find(signer) != seen.end())
{
MINFO("Duplicate multisig info ignored");
continue;
}
seen.insert(signer);
std::string body(data, headerlen);
std::istringstream iss(body);
std::vector<tools::wallet2::multisig_info> i;
boost::archive::portable_binary_iarchive ar(iss);
ar >> i;
MINFO(boost::format("%u outputs found") % boost::lexical_cast<std::string>(i.size()));
info.push_back(std::move(i));
}
CHECK_AND_ASSERT_THROW_MES(info.size() + 1 <= m_multisig_signers.size() && info.size() + 1 >= m_multisig_threshold, "Wrong number of multisig sources");
std::vector<std::vector<rct::key>> k;