Как расшифровать serverVerificationData ⇐ Android

[Гость]

I'm working on IAP (in-app purchase) using in_app_purchase plugin and alla subscription are auto-renewal subscriptions. In the Android implementation, get query past purchase from InAppPurchaseAndroidPlatformAddition.

Problem is in iOS: I must valid it before sending to server and I must decode it. Decoding by base64 return bytes. It is ASN1. I am trying to get to all previous transaction list from it by plugin asn1lib, but I failed.

Please help me with the code so I can use it in flutter; I have tried this code, but it's not working

InAppPurchaseStoreKitPlatformAddition iosPlatformAddition = _inAppPurchase .getPlatformAddition(); await iosPlatformAddition.refreshPurchaseVerificationData().then((value){ storeReceipt = value!.serverVerificationData; }); debugPrint("store data $storeReceipt"); Uint8List binaryData = base64.decode(storeReceipt); debugPrint("bin data $binaryData"); ASN1Parser parser = ASN1Parser(binaryData); debugPrint("par $parser"); ASN1Sequence sequence = parser.nextObject() as ASN1Sequence; debugPrint("seq $sequence"); for (var item in sequence.elements) { debugPrint("items is $ i want receipt data from app store which is activate in device