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wallet: factor multisig info parsing

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moneromooo-monero 2017-11-18 11:24:38 +00:00
parent 31a97e761e
commit 98db7ee467
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GPG key ID: 686F07454D6CEFC3
4 changed files with 68 additions and 102 deletions
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54
src/wallet/wallet2.cpp
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@ -2895,6 +2895,60 @@ std::string wallet2::make_multisig(const epee::wipeable_string &password,
return extra_multisig_info;
}
std::string wallet2::make_multisig(const epee::wipeable_string &password,
const std::vector<std::string> &info,
uint32_t threshold)
{
// parse all multisig info
std::vector<crypto::secret_key> secret_keys(info.size());
std::vector<crypto::public_key> public_keys(info.size());
for (size_t i = 0; i < info.size(); ++i)
{
THROW_WALLET_EXCEPTION_IF(!verify_multisig_info(info[i], secret_keys[i], public_keys[i]),
error::wallet_internal_error, "Bad multisig info: " + info[i]);
}
// remove duplicates
for (size_t i = 0; i < secret_keys.size(); ++i)
{
for (size_t j = i + 1; j < secret_keys.size(); ++j)
{
if (rct::sk2rct(secret_keys[i]) == rct::sk2rct(secret_keys[j]))
{
MDEBUG("Duplicate key found, ignoring");
secret_keys[j] = secret_keys.back();
public_keys[j] = public_keys.back();
secret_keys.pop_back();
public_keys.pop_back();
--j;
}
}
}
// people may include their own, weed it out
const crypto::secret_key local_skey = cryptonote::get_multisig_blinded_secret_key(get_account().get_keys().m_view_secret_key);
const crypto::public_key local_pkey = get_multisig_signer_public_key(get_account().get_keys().m_spend_secret_key);
for (size_t i = 0; i < secret_keys.size(); ++i)
{
if (secret_keys[i] == local_skey)
{
MDEBUG("Local key is present, ignoring");
secret_keys[i] = secret_keys.back();
public_keys[i] = public_keys.back();
secret_keys.pop_back();
public_keys.pop_back();
--i;
}
else
{
THROW_WALLET_EXCEPTION_IF(public_keys[i] == local_pkey, error::wallet_internal_error,
"Found local spend public key, but not local view secret key - something very weird");
}
}
return make_multisig(password, secret_keys, public_keys, threshold);
}
bool wallet2::finalize_multisig(const epee::wipeable_string &password, std::unordered_set<crypto::public_key> pkeys, std::vector<crypto::public_key> signers)
{
CHECK_AND_ASSERT_THROW_MES(!pkeys.empty(), "empty pkeys");