Arbitrary M/N multisig schemes:

* support in wallet2
* support in monero-wallet-cli
* support in monero-wallet-rpc
* support in wallet api
* support in monero-gen-trusted-multisig
* unit tests for multisig wallets creation

1 files changed, 3 insertions, 12 deletions

diff --git a/src/gen_multisig/gen_multisig.cpp b/src/gen_multisig/gen_multisig.cpp
index f11f442bc..9749ba13f 100644
--- a/src/gen_multisig/gen_multisig.cpp
+++ b/src/gen_multisig/gen_multisig.cpp
@@ -130,8 +130,8 @@ static bool generate_multisig(uint32_t threshold, uint32_t total, const std::str
       ss << "  " << name << std::endl;
     }
 
-    // finalize step if needed
-    if (!extra_info[0].empty())
+    //exchange keys unless exchange_multisig_keys returns no extra info
+    while (!extra_info[0].empty())
     {
       std::unordered_set<crypto::public_key> pkeys;
       std::vector<crypto::public_key> signers(total);
@@ -145,11 +145,7 @@ static bool generate_multisig(uint32_t threshold, uint32_t total, const std::str
       }
       for (size_t n = 0; n < total; ++n)
       {
-        if (!wallets[n]->finalize_multisig(pwd_container->password(), pkeys, signers))
-        {
-          tools::fail_msg_writer() << genms::tr("Error finalizing multisig");
-          return false;
-        }
+          extra_info[n] = wallets[n]->exchange_multisig_keys(pwd_container->password(), pkeys, signers);
       }
     }
 
@@ -244,11 +240,6 @@ int main(int argc, char* argv[])
     return 1;
   }
 
-  if (threshold != total-1 && threshold != total)
-  {
-    tools::fail_msg_writer() << genms::tr("Error: unsupported scheme: only N/N and N-1/N are supported");
-    return 1;
-  }
   bool create_address_file = command_line::get_arg(*vm, arg_create_address_file);
   if (!generate_multisig(threshold, total, basename, testnet ? TESTNET : stagenet ? STAGENET : MAINNET, create_address_file))
     return 1;