Exception of type 'UnityEngine.Purchasing.Security.InvalidSignatureException' was thrown.

Unity Services
1

CrossPlatformValidator throws an InvalidSignatureException when buying google product items.

Logcat -

IPurchaseReceipt CrossPlatformValidator {“Store”:“GooglePlay”,“TransactionID”:“pekcjpebampnfholknaehheb.AO-…-Sx8mJ5…”,“Payload”:"{"json":"{\"orderId\":\"GPA.3350-1000-4525-

IPurchaseReceipt IAPSecurityException UnityEngine.Purchasing.Security.InvalidSignatureException: Exception of type ‘UnityEngine.Purchasing.Security.InvalidSignatureException’ was thrown.
at UnityEngine.Purchasing.Security.GooglePlayValidator.Validate (System.String receipt, System.String signature) [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.Purchasing.Security.CrossPlatformValidator.Validate (System.String unityIAPReceipt) [0x00000] in <00000000000000000000000000000000>:0
at IAPManager.ProcessPurchase (UnityEngine.Purchasing.PurchaseEventArgs args) [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.Purchasing.PurchasingManager.ProcessPurchaseIfNew (UnityEngine.Purchasing.Product product) [0x00000] in <00000000000000000000000000000000>:0
at System.Action.Invoke () [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.Purchasing.Extension.UnityUtil.Update () [0x00000] in <00000000000000000000000000000000>:0
IAPManager:processPurchase(PurchaseEven

Code -

#if IAP_VALIDATOR

    public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs args)
    {
        bool t_IsBuy = true;

#if UNITY_ANDROID || UNITY_IOS || UNITY_STANDALONE_OSX

        var validator = new CrossPlatformValidator(GooglePlayTangle.Data(), AppleTangle.Data(), Application.identifier);
        try
        {
            Debug.LogFormat("IPurchaseReceipt identifier {0}", Application.identifier);
            Debug.LogFormat("IPurchaseReceipt CrossPlatformValidator {0}", args.purchasedProduct.receipt);

            var result = validator.Validate(args.purchasedProduct.receipt);
        

            Debug.LogFormat("IPurchaseReceipt CrossPlatformValidator 2");


            string productid = "";

            foreach (IPurchaseReceipt productReceipt in result)
            {
                Analytics.Transaction(productReceipt.productID, args.purchasedProduct.metadata.localizedPrice, args.purchasedProduct.metadata.isoCurrencyCode, productReceipt.transactionID, null);

                Debug.LogFormat("IPurchaseReceipt {0} {1}", productReceipt.productID, args.purchasedProduct.metadata.localizedPrice);

                if (String.Equals(productReceipt.productID, productid))
                {
                    t_IsBuy = true;
                }
            }

        
        }
        catch (IAPSecurityException e)
        {
            t_IsBuy = false;
            Debug.LogFormat("IPurchaseReceipt IAPSecurityException {0} {1} {2}", e.Message, e.InnerException, e.Data);
            Debug.LogFormat("IPurchaseReceipt IAPSecurityException {0}", e);
            //CallMessageBox("Invalid receipt, not unlocking content IAPSecurityException");
        }
#endif

Environment:
Unity 2019.2.20f1
Unity IAP 2.0.6

2

That would be expected if the receipt is invalid. Did you attempt this purchase yourself during a test with an actual credit card?

3

thank you for answer.
Yes it was google pay test mode does it matter to check invalid receipt?? if so how can i test google purchase?

4

You already are, that’s exactly what the CrossPlatformValidator does. Do you get that exception in all your purchase testing, for all your products? Can you describe your “Google pay test mode”, can you test with an actual credit card to compare?