服务器端验证播放应用内结算购买签名失败

Question

我目前正在整合谷歌Play应用计费以我androidgame的项目，我有一个Node.js的服务器设置，并计划将其发送的“originalJson”以及用于服务器端验证的Google Play购买响应的“签名”值。

然后我挂上了一下测试的Node.js的我的服务器上，先在这里是“originalJson”我购买的一个“签名”的值（取从客户端）：

originalJson:{"orderId":"GPA.1312-8694-0319-25069","packageName":"com.shihu.sm.testin","productId":"com.shihu.sm.testin.diamond","purchaseTime":1452598011176,"purchaseState":0,"developerPayload":"{\"iabProductId\":\"com.shihu.sm.testin.diamond\",\"gOrderId\":\"2cb77de1a2a94db18b6df84f8037ea5b\",\"serverId\":\"6\",\"productId\":\"202\"}","purchaseToken":"bjoncdcebeclpklebmadidgb.AO-J1OyEbKLL0rhWQAc1hjdWyJPXHkAoHZTfZasqUuFWKWyAlnj-opiDLYILNRpnWgcblO8vV37fWf0kpeNMRZcgRT-fRxAO4P8VQPmU-TJakB-sCiRx8sUxL4nxnUBMnZdFWdpaIZDW5tP3Ck4aO57n1o66PwnjZw"} 
    signature:JdfwMxprv7iMbI5YnVIWXLEAqiDhAQQva2IdfxtmhqBvLNU4Msi8sj31mnrVJfShxNmQI3zhlNUrCCaXdraFM0/y8O4PoZWYr+PFjCmlMovhG+ldeImEu7x52GLoQ7DsO8Yh4aLYmxemezFc1RjcSpq+l6Zzu9T6j3fHjLfQ060SEFapZITI/poxlFyvJX3bHhF9wGP54tL6pGjB/7fBEqTM1zHXUYeZyz+4akqV8oODlIWwMKhvN5tX/Zra9kh9hm0bnJT/1YWso3tLlT/WTK9nsP1l/lTnEXvgzq9QVSGbT/cpD7KSbR5N4i/NmPYAlCOvesW9OlRD05L8yytpBw== 

然后我写了下面的代码做“RSA-SHA1”算法“的base64”签名编码验证：

var crypto = require('crypto'); 

    console.log('start verification'); 

    var public_key = "-----BEGIN PUBLIC KEY-----" + "\r\n" + 
    "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAg+VmzvTvb856ur/J+PWC" + "\r\n" + 
    "gFRhLYV/chAuWzUuqlIh5gnYz1RFOYymCWAKP3wguol8YSe/72zEqAvPutBU2XVj" + "\r\n" + 
    "zx3sHT+GUInbKjgZHzxw0viPh//OfaooEvEFMz9C6J8ABwpGNQUpACmyw12ZKshP" + "\r\n" + 
    "HCJ6PZV+nsWry6PEZgnYCF7w5SDP4GY2tr3Q5D0iQwoALA40KYQfsKZ6pI5L8bDT" + "\r\n" + 
    "2MLTFoemg/npeARy9HYkbonPatBhWjp2flzBRcyQx7DyQ7csLvPl5AGHRT4h5RBq" + "\r\n" + 
    "RlLj+DBgNDAdwvHGyfhbTz7fPsT6xn7qifxAN+2gQsemSVmhi15zECF/k5MtTiOF" + "\r\n" + 
    "owIDAQAB" + "\r\n" + 
    "-----END PUBLIC KEY-----"; 

    verifier= crypto.createVerify("RSA-SHA1"); 
    originalJson = '{"orderId":"GPA.1312-8694-0319-25069","packageName":"com.shihu.sm.testin","productId":"com.shihu.sm.testin.diamond","purchaseTime":1452598011176,"purchaseState":0,"developerPayload":"{\"iabProductId\":\"com.shihu.sm.testin.diamond\",\"gOrderId\":\"2cb77de1a2a94db18b6df84f8037ea5b\",\"serverId\":\"6\",\"productId\":\"202\"}","purchaseToken":"bjoncdcebeclpklebmadidgb.AO-J1OyEbKLL0rhWQAc1hjdWyJPXHkAoHZTfZasqUuFWKWyAlnj-opiDLYILNRpnWgcblO8vV37fWf0kpeNMRZcgRT-fRxAO4P8VQPmU-TJakB-sCiRx8sUxL4nxnUBMnZdFWdpaIZDW5tP3Ck4aO57n1o66PwnjZw"}'; 
    signature = 'JdfwMxprv7iMbI5YnVIWXLEAqiDhAQQva2IdfxtmhqBvLNU4Msi8sj31mnrVJfShxNmQI3zhlNUrCCaXdraFM0/y8O4PoZWYr+PFjCmlMovhG+ldeImEu7x52GLoQ7DsO8Yh4aLYmxemezFc1RjcSpq+l6Zzu9T6j3fHjLfQ060SEFapZITI/poxlFyvJX3bHhF9wGP54tL6pGjB/7fBEqTM1zHXUYeZyz+4akqV8oODlIWwMKhvN5tX/Zra9kh9hm0bnJT/1YWso3tLlT/WTK9nsP1l/lTnEXvgzq9QVSGbT/cpD7KSbR5N4i/NmPYAlCOvesW9OlRD05L8yytpBw==' 

    verifier.update(originalJson); 
    if(verifier.verify(public_key, signature, "base64")) 
     console.log('verification succeeded'); 
    else 
     console.log("verification failed"); 

中间的密钥字符串是分裂从谷歌控制台编码的公共密钥的base64“ \ r \ n'每64个字符。一开始我并没有把它分割成64个字符块，并保持与错误，说不能产生酒馆关键对象故障，它后来我也跟着在互联网上的一些例子，结果被通过了，但到现在为止，我还没有尚未取得成功的验证结果。

我已经提到一些例子，我认为“RSA-SHA1”和“的base64”为验证设置是正确的，那么，我仍下落不明或做错了什么？

感谢

Answer 1

看来你originalJson字符串缺少一些必要的转义。

我已经设法与在避开加回验证签名：

var originalJson = '{"orderId":"GPA.1312-8694-0319-25069","packageName":"com.shihu.sm.testin","productId":"com.shihu.sm.testin.diamond","purchaseTime":1452598011176,"purchaseState":0,"developerPayload":"{\\"iabProductId\\":\\"com.shihu.sm.testin.diamond\\",\\"gOrderId\\":\\"2cb77de1a2a94db18b6df84f8037ea5b\\",\\"serverId\\":\\"6\\",\\"productId\\":\\"202\\"}","purchaseToken":"bjoncdcebeclpklebmadidgb.AO-J1OyEbKLL0rhWQAc1hjdWyJPXHkAoHZTfZasqUuFWKWyAlnj-opiDLYILNRpnWgcblO8vV37fWf0kpeNMRZcgRT-fRxAO4P8VQPmU-TJakB-sCiRx8sUxL4nxnUBMnZdFWdpaIZDW5tP3Ck4aO57n1o66PwnjZw"}'; 

，请注意\\的。该字符串是不同的。