1 files changed, 9 insertions, 3 deletions
diff --git a/src/gen_multisig/gen_multisig.cpp b/src/gen_multisig/gen_multisig.cpp
index f13e74b0f..eedd1511d 100644
--- a/src/gen_multisig/gen_multisig.cpp
+++ b/src/gen_multisig/gen_multisig.cpp
@@ -50,7 +50,6 @@
 using namespace std;
 using namespace epee;
 using namespace cryptonote;
-using boost::lexical_cast;
 namespace po = boost::program_options;
 
 #undef MONERO_DEFAULT_LOG_CATEGORY
@@ -84,6 +83,9 @@ static bool generate_multisig(uint32_t threshold, uint32_t total, const std::str
 
   try
   {
+    if (total == 0)
+      throw std::runtime_error("Signer group of size 0 is not allowed.");
+
     // create M wallets first
     std::vector<boost::shared_ptr<tools::wallet2>> wallets(total);
     for (size_t n = 0; n < total; ++n)
@@ -118,13 +120,17 @@ static bool generate_multisig(uint32_t threshold, uint32_t total, const std::str
       ss << "  " << name << std::endl;
     }
 
-    //exchange keys unless exchange_multisig_keys returns no extra info
-    while (!kex_msgs_intermediate[0].empty())
+    // exchange keys until the wallets are done
+    bool ready{false};
+    wallets[0]->multisig(&ready);
+    while (!ready)
     {
       for (size_t n = 0; n < total; ++n)
       {
           kex_msgs_intermediate[n] = wallets[n]->exchange_multisig_keys(pwd_container->password(), kex_msgs_intermediate);
       }
+
+      wallets[0]->multisig(&ready);
     }
 
     std::string address = wallets[0]->get_account().get_public_address_str(wallets[0]->nettype());