SKALE-3276 catch error if name already exists

DKGCrypto.cpp

@@ -250,15 +250,15 @@ getSecretShares(const string &_polyName, const char *_encryptedPolyHex, const ve
 
         spdlog::debug("hexEncr DH Key: { }", hexEncrKey.data());
         spdlog::debug("name to write to db is {}", dhKeyName);
-        SGXWalletServer::writeDataToDB(dhKeyName, hexEncrKey.data());
 
         string shareG2_name = "shareG2_" + _polyName + "_" + to_string(i) + ":";
         spdlog::debug("name to write to db is {}", shareG2_name);
         spdlog::debug("s_shareG2: {}", sShareG2.data());
 
-        SGXWalletServer::writeDataToDB(shareG2_name, sShareG2.data());
-
-
+        try {
+            SGXWalletServer::writeDataToDB(dhKeyName, hexEncrKey.data());
+            SGXWalletServer::writeDataToDB(shareG2_name, sShareG2.data());
+        } catch (const SGXException&) {}
     }
 
     return result;

TestUtils.cpp

@@ -306,6 +306,8 @@ void TestUtils::doDKG(StubClient &c, int n, int t,
         verifVects[i] = c.getVerificationVector(polyName, t, n);
         CHECK_STATE(verifVects[i]["status"] == 0);
         pubEthKeys.append(ethKeys[i]["publicKey"]);
+
+        REQUIRE_NOTHROW(c.getVerificationVector(polyName, t, n));
     }
 
     for (uint8_t i = 0; i < n; i++) {
@@ -318,6 +320,7 @@ void TestUtils::doDKG(StubClient &c, int n, int t,
                 pubShares[i] += TestUtils::convertDecToHex(pubShare);
             }
         }
+        REQUIRE_NOTHROW(c.getSecretShare(polyNames[i], pubEthKeys, t, n));
     }
 
     int k = 0;