使用 Json 文件进行 Google 服务帐户身份验证

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【中文标题】使用 Json 文件进行 Google 服务帐户身份验证【英文标题】：Google Service Account Authentication with Json file 【发布时间】：2016-01-31 00:38:47 【问题描述】：

我一直在关注 Google 网站上的 Oauth2 Service account 文档。我也一直在挑选 Googles .net client libray 试图让它发挥作用。

我已经到了计算签名阶段。

来自 Google 的隐私密钥如下所示

-----BEGIN PRIVATE KEY-----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\nMdzKHlUKKXWcUU+Ko8W4+w\u003d\u003d\n-----END PRIVATE KEY-----\n

清理键

首先我稍微清理一下密钥

private const string PrivateKeyPrefix = "-----BEGIN PRIVATE KEY-----";
private const string PrivateKeySuffix = "-----END PRIVATE KEY-----";

 /// <summary>Converts the PKCS8 private key to RSA parameters. This method uses the Bouncy Castle library.</summary>
        private static RSAParameters ConvertPKCS8ToRSAParameters(string pkcs8PrivateKey)
        

            var base64PrivateKey = pkcs8PrivateKey.Replace(PrivateKeyPrefix, "").Replace("\r\n", "").Replace(PrivateKeySuffix, "");           
            var privateKeyBytes = Convert.FromBase64String(base64PrivateKey);
            RsaPrivateCrtKeyParameters crtParameters = (RsaPrivateCrtKeyParameters)PrivateKeyFactory.CreateKey(privateKeyBytes);           


            return DotNetUtilities.ToRSAParameters(crtParameters);

导入参数

 RSAParameters rsaParameters = ConvertPKCS8ToRSAParameters(results.private_key);
 RSACryptoServiceProvider key = new RSACryptoServiceProvider();
 key.ImportParameters(rsaParameters);

错误

'System.Security.Cryptography.CryptographicException' 发生在 mscorlib.dll

附加信息：错误数据。

我的想法

dp 值接缝我读过的所有内容都说它应该是 128 字节而不是 127。

注意：

我没有使用 p12。我正在使用 Json 服务帐户文件。使用 X509Certificate2 和 p12 密钥文件的答案将无济于事。


  "private_key_id": "xxxxxx",
  "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQDcmuyQC8rwWdPQ\nmIdksgzSJbVWTU5MeUxy+HAap3yut9wR/L6KGMJ4FBYcsPmXN5gQAhErybavGoZG\nfS1X1/PCpPVpTCA4749K8gbvuZg1JEIAqMtmHiBBrJj5l8eiekQc8pd7Pq35H4wi\nJYXAJGwggPcttkLBRi0xZzd+jdwL1st+7zRt8nMao/xFibInBBvKwb/gP4mJxlQg\nnRdGO6zgMk+PLTcA5C+gFyPA4SdkylrLib5CJO9123FgcfTJZJTukeHo1v0EfU+4\n3bK8HBZnOFa4DHH4mXhkhgYMjibv4Sr/WCEoomJJwNN04SbUEdyhgpM2rZ3cvx+4\nsmB0SQflAgMBAAECggEAXZ100+/dL7++zh9cHVQdcrRDzprBplw3H/bjg7wdgftN\n7Wgm5214YQKNG6HSWORjqC9oX/+agZYs8w69xjBDJg9ggU2nwuGOGky4utQ0jiCT\nzbnTjsMsBxKaXBiXxBBEhVBBDjDcHQLRMdBggNgz9lskCYb1rxT7qqJVf2PtxCuZ\nuxw3whLMRHXvKosER12sMQgGB/0+Nk86GWCqPigpfu7Ec92V0ffcSUaq3gjIUD54\n67TduTWaRDQNB+j2yQsWQZnqRv+TvIXOjinAI+pPbvCUovtiTSZAoz3EalsiXQ0l\nUqDVx26uzEJqhB2kzvAeApuW2Nd5EPxUnf48c4xh4QKBgQDw01mEChWyENV5CBKU\nMSfY0rpAPtq7ahHRR458ZKtITDBlqiZLMjydI65Rr1XxpQ3pJZALObMdUhbvCDfm\nu4BY/lCCt+hcdt9IICvVZsgXgvb6M+Fj2IbYZcAnOm4T1Z1D3I+pW5NdK2ALQRiK\nWsGINOqWCB9WRd7nhmb/XwWyjQKBgQDqgWht5laDuLMc4qpj9finY4qmk57eT3KG\npzbVlT3h7kv7j/j6e+6o9psrqdf1PXpu9XZi3bPtPbH1fX9x5pZgJQRMP4FGOURY\nQDkJfiOOSN/8Vl0senqkscT7DSbe2BqyqQlSlTB4BBF29p1wxb5Wz5HH2BvYE2zI\ni9B4WJcAuQKBgADnajCasRYoBgUcSKWRwaqIr/ZJxhxp+4Mjl59T6WiuEIhxKQ+j\nMqMMXT0lQVdU3UaAw5enMcrsYfWnvD37ejHbUoYLFq4yLAhjRobYieu8rByoUTJE\nv8zUJPKAv6UHaj20+D0UgOsanJOuPN9YE93lBPRnN2blgD6yPHS88JKJAoGABFyh\n16F4LH0L/9aLes6BcIOeeZi3VMU/iRelInXjL8eh7CzyYZ5agxQLMNW46ZvaIiQ4\nroAXL6t9GubZrwGt/F3T5aMswWShS87uAKoy+RuL5wKoOwKQM24HDvBgr7ZvULFq\nNfoGa8UPmhneNdHHx4+W05PGeM9rr5NCLmrfbCkCgYA0nMvEDIJvU3KA3S1cQ3fs\nVopRJwqRIFFL1cHTWaEyIsxEh6i/zAUc/habK82dN3/ZDn/XvWY14k7VZPsSdDC9\noVlQj2z8DVO2K99Oxyh0VlthtecW8exjzkIPJL4srOSl/dooQZS/7ZZyaRQU/BLI\nMdzKHlUKKXWcUU+Ko8W4+w\u003d\u003d\n-----END PRIVATE KEY-----\n",
  "client_email": "dddddd-2a1f881e7rabfkt2eb1p84aisg30pedg@developer.gserviceaccount.com",
  "client_id": "ddddd-2a1f881e7rabfkt2eb1p84aisg30pedg.apps.googleusercontent.com",
  "type": "service_account"

【问题讨论】：

问题标题中的错字 请看这个问题***.com/questions/31840686/… 我知道如何使用库来做这个问题是如何在没有库的情况下做到这一点。不幸的是，这个问题无济于事 【参考方案1】：

才意识到这是多久以前报告的。我想你找到了答案或放弃了。

您的代码现在可以工作了 - 我在 BouncyCastle 1.8.1 上尝试过，它可以工作，但在 1.7.0 上失败了。

使用的代码：

using System;
using System.Security.Cryptography;
using Newtonsoft.Json;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Security;

namespace ConsoleApp1

    class Program
    
        public static void Main()
        
            var json = "\"private_key_id\":\"xxxxxx\",\"private_key\":\"-----BEGIN PRIVATE KEY-----\\nMIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQDcmuyQC8rwWdPQ\\nmIdksgzSJbVWTU5MeUxy+HAap3yut9wR/L6KGMJ4FBYcsPmXN5gQAhErybavGoZG\\nfS1X1/PCpPVpTCA4749K8gbvuZg1JEIAqMtmHiBBrJj5l8eiekQc8pd7Pq35H4wi\\nJYXAJGwggPcttkLBRi0xZzd+jdwL1st+7zRt8nMao/xFibInBBvKwb/gP4mJxlQg\\nnRdGO6zgMk+PLTcA5C+gFyPA4SdkylrLib5CJO9123FgcfTJZJTukeHo1v0EfU+4\\n3bK8HBZnOFa4DHH4mXhkhgYMjibv4Sr/WCEoomJJwNN04SbUEdyhgpM2rZ3cvx+4\\nsmB0SQflAgMBAAECggEAXZ100+/dL7++zh9cHVQdcrRDzprBplw3H/bjg7wdgftN\\n7Wgm5214YQKNG6HSWORjqC9oX/+agZYs8w69xjBDJg9ggU2nwuGOGky4utQ0jiCT\\nzbnTjsMsBxKaXBiXxBBEhVBBDjDcHQLRMdBggNgz9lskCYb1rxT7qqJVf2PtxCuZ\\nuxw3whLMRHXvKosER12sMQgGB/0+Nk86GWCqPigpfu7Ec92V0ffcSUaq3gjIUD54\\n67TduTWaRDQNB+j2yQsWQZnqRv+TvIXOjinAI+pPbvCUovtiTSZAoz3EalsiXQ0l\\nUqDVx26uzEJqhB2kzvAeApuW2Nd5EPxUnf48c4xh4QKBgQDw01mEChWyENV5CBKU\\nMSfY0rpAPtq7ahHRR458ZKtITDBlqiZLMjydI65Rr1XxpQ3pJZALObMdUhbvCDfm\\nu4BY/lCCt+hcdt9IICvVZsgXgvb6M+Fj2IbYZcAnOm4T1Z1D3I+pW5NdK2ALQRiK\\nWsGINOqWCB9WRd7nhmb/XwWyjQKBgQDqgWht5laDuLMc4qpj9finY4qmk57eT3KG\\npzbVlT3h7kv7j/j6e+6o9psrqdf1PXpu9XZi3bPtPbH1fX9x5pZgJQRMP4FGOURY\\nQDkJfiOOSN/8Vl0senqkscT7DSbe2BqyqQlSlTB4BBF29p1wxb5Wz5HH2BvYE2zI\\ni9B4WJcAuQKBgADnajCasRYoBgUcSKWRwaqIr/ZJxhxp+4Mjl59T6WiuEIhxKQ+j\\nMqMMXT0lQVdU3UaAw5enMcrsYfWnvD37ejHbUoYLFq4yLAhjRobYieu8rByoUTJE\\nv8zUJPKAv6UHaj20+D0UgOsanJOuPN9YE93lBPRnN2blgD6yPHS88JKJAoGABFyh\\n16F4LH0L/9aLes6BcIOeeZi3VMU/iRelInXjL8eh7CzyYZ5agxQLMNW46ZvaIiQ4\\nroAXL6t9GubZrwGt/F3T5aMswWShS87uAKoy+RuL5wKoOwKQM24HDvBgr7ZvULFq\\nNfoGa8UPmhneNdHHx4+W05PGeM9rr5NCLmrfbCkCgYA0nMvEDIJvU3KA3S1cQ3fs\\nVopRJwqRIFFL1cHTWaEyIsxEh6i/zAUc/habK82dN3/ZDn/XvWY14k7VZPsSdDC9\\noVlQj2z8DVO2K99Oxyh0VlthtecW8exjzkIPJL4srOSl/dooQZS/7ZZyaRQU/BLI\\nMdzKHlUKKXWcUU+Ko8W4+w==\\n-----END PRIVATE KEY-----\\n\",\"client_email\":\"dddddd-2a1f881e7rabfkt2eb1p84aisg30pedg@developer.gserviceaccount.com\",\"client_id\":\"ddddd-2a1f881e7rabfkt2eb1p84aisg30pedg.apps.googleusercontent.com\",\"type\":\"service_account\"";

            dynamic jsonObject = JsonConvert.DeserializeObject(json);

            var rsaParams = ConvertPKCS8ToRSAParameters((string)jsonObject.private_key);

            RSACryptoServiceProvider key = new RSACryptoServiceProvider();
            key.ImportParameters(rsaParams);

            Console.WriteLine($"Key size: key.KeySize, DP: rsaParams.DP.Length");
            Console.ReadLine();
        

        private const string PrivateKeyPrefix = "-----BEGIN PRIVATE KEY-----";
        private const string PrivateKeySuffix = "-----END PRIVATE KEY-----";

        /// <summary>Converts the PKCS8 private key to RSA parameters. This method uses the Bouncy Castle library.</summary>
        private static RSAParameters ConvertPKCS8ToRSAParameters(string pkcs8PrivateKey)
        

            var base64PrivateKey = pkcs8PrivateKey.Replace(PrivateKeyPrefix, "").Replace("\r\n", "").Replace(PrivateKeySuffix, "");
            var privateKeyBytes = Convert.FromBase64String(base64PrivateKey);
            RsaPrivateCrtKeyParameters crtParameters = (RsaPrivateCrtKeyParameters)PrivateKeyFactory.CreateKey(privateKeyBytes);


            return DotNetUtilities.ToRSAParameters(crtParameters);

【讨论】：

部分问题是我不能使用充气城堡，所以这无济于事。我现在有点放弃解决这个问题了。【参考方案2】：

我制作了这个 .net 项目，它使用 json 和 p12 文件来验证服务帐户，无论是否有用户模拟。

GoogleApiServiceFactory

【讨论】：

这使用了 Google .net 客户端库，这正是问题不想做的事情。

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