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wallet: new {ex,im}port_key_images commands and RPC calls

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They are used to export a signed set of key images from a wallet
with a private spend key, so an auditor with the matching view key
may see which of those are spent, and which are not.
This commit is contained in:
moneromooo-monero 2016-07-15 12:11:55 +01:00
parent 47618c2710
commit ebf97d76f0
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
8 changed files with 364 additions and 1 deletions
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66
src/wallet/wallet_rpc_server.cpp
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@ -995,5 +995,71 @@ namespace tools
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool wallet_rpc_server::on_export_key_images(const wallet_rpc::COMMAND_RPC_EXPORT_KEY_IMAGES::request& req, wallet_rpc::COMMAND_RPC_EXPORT_KEY_IMAGES::response& res, epee::json_rpc::error& er)
{
try
{
std::vector<std::pair<crypto::key_image, crypto::signature>> ski = m_wallet.export_key_images();
res.signed_key_images.resize(ski.size());
for (size_t n = 0; n < ski.size(); ++n)
{
res.signed_key_images[n].key_image = epee::string_tools::pod_to_hex(ski[n].first);
res.signed_key_images[n].signature = epee::string_tools::pod_to_hex(ski[n].second);
}
}
catch (...)
{
er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
er.message = "Failed";
return false;
}
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool wallet_rpc_server::on_import_key_images(const wallet_rpc::COMMAND_RPC_IMPORT_KEY_IMAGES::request& req, wallet_rpc::COMMAND_RPC_IMPORT_KEY_IMAGES::response& res, epee::json_rpc::error& er)
{
try
{
std::vector<std::pair<crypto::key_image, crypto::signature>> ski;
ski.resize(req.signed_key_images.size());
for (size_t n = 0; n < ski.size(); ++n)
{
cryptonote::blobdata bd;
if(!epee::string_tools::parse_hexstr_to_binbuff(req.signed_key_images[n].key_image, bd))
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "failed to parse key image";
return false;
}
ski[n].first = *reinterpret_cast<const crypto::key_image*>(bd.data());
if(!epee::string_tools::parse_hexstr_to_binbuff(req.signed_key_images[n].signature, bd))
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_SIGNATURE;
er.message = "failed to parse signature";
return false;
}
ski[n].second = *reinterpret_cast<const crypto::signature*>(bd.data());
}
uint64_t spent = 0, unspent = 0;
uint64_t height = m_wallet.import_key_images(ski, spent, unspent);
res.spent = spent;
res.unspent = unspent;
res.height = height;
}
catch (...)
{
er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
er.message = "Failed";
return false;
}
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
}