Automatic update on Mon Jul 4 01:08:14 UTC 2022

c4dt · Jul 4, 2022 · 113a4f9 · 113a4f9
1 parent 8f88432
commit 113a4f9
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Showing 2 changed files with 14 additions and 0 deletions.
diff --git a/pkg/cothority/calypso/contracts.go b/pkg/cothority/calypso/contracts.go
@@ -79,6 +79,18 @@ func (c ContractWrite) Spawn(rst byzcoin.ReadOnlyStateTrie, inst byzcoin.Instruc
 			err = xerrors.Errorf("proof of write failed: %v", err)
 			return
 		}
+		var cid string
+		_, _, cid, _, err = rst.GetValues(c.Write.LTSID[:])
+		if err != nil {
+			err = xerrors.Errorf("couldn't find the corresponding LTSID: %v",
+				err)
+			return
+		}
+		if cid != ContractLongTermSecretID {
+			err = xerrors.Errorf("given LTSID points to wrong contract: %s",
+				cid)
+			return
+		}
 		instID, err := inst.DeriveIDArg("", "preID")
 		if err != nil {
 			return nil, nil, xerrors.Errorf(

diff --git a/pkg/cothority/personhood/contracts/contract_spawner_test.go b/pkg/cothority/personhood/contracts/contract_spawner_test.go
@@ -197,6 +197,8 @@ func TestContractSpawnerPreID(t *testing.T) {
 	testPreID(t, sr, instCred, ca, null, false)
 
 	ltsID := byzcoin.NewInstanceID(random.Bits(256, true, random.New()))
+	require.NoError(t, sr.CreateSCB(byzcoin.Create,
+		calypso.ContractLongTermSecretID, ltsID, nil, nil))
 	ltsKP := key.NewKeyPair(cothority.Suite)
 	wr := calypso.NewWrite(cothority.Suite, ltsID,
 		darc.ID{}, ltsKP.Public, []byte("key"))