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multisig: add post-kex verification round to check that all participants have completed the multisig address

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This commit is contained in:
koe 2022-04-29 14:04:59 -05:00
parent d562deaaa9
commit 0d6ecb1136
9 changed files with 336 additions and 194 deletions
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9
src/wallet/wallet2.cpp
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@ -5088,7 +5088,7 @@ std::string wallet2::exchange_multisig_keys(const epee::wipeable_string &passwor
// reconstruct multisig account
crypto::public_key dummy;
multisig::multisig_account::kex_origins_map_t kex_origins_map;
multisig::multisig_keyset_map_memsafe_t kex_origins_map;
for (const auto &derivation : m_multisig_derivations)
kex_origins_map[derivation];
@ -5101,7 +5101,7 @@ std::string wallet2::exchange_multisig_keys(const epee::wipeable_string &passwor
get_account().get_keys().m_multisig_keys,
get_account().get_keys().m_view_secret_key,
m_account_public_address.m_spend_public_key,
dummy, //common pubkey: not used
m_account_public_address.m_view_public_key,
m_multisig_rounds_passed,
std::move(kex_origins_map),
""
@ -5188,7 +5188,10 @@ bool wallet2::multisig(bool *ready, uint32_t *threshold, uint32_t *total) const
if (total)
*total = m_multisig_signers.size();
if (ready)
*ready = !(get_account().get_keys().m_account_address.m_spend_public_key == rct::rct2pk(rct::identity()));
{
*ready = !(get_account().get_keys().m_account_address.m_spend_public_key == rct::rct2pk(rct::identity())) &&
(m_multisig_rounds_passed == multisig::multisig_kex_rounds_required(m_multisig_signers.size(), m_multisig_threshold) + 1);
}
return true;
}
//----------------------------------------------------------------------------------------------------