使用Java连接Azure Key Vault时出错

Question

我是Azure相关概念的新手，并且在连接Azure密钥保管库时遇到问题。

请按如下所示找到我的代码段，并让我知道为什么会出现以下异常：

Get Key started.../n SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. Get Key failedjava.lang.RuntimeException: java.util.concurrent.ExecutionException: com.microsoft.aad.adal4j.AuthenticationException: {"error_description":"AADSTS70002: Error validating credentials. AADSTS50012: Invalid client secret is provided.\\r\\nTrace ID: 13f8e909-89d8-472f-a1c1-9f4bcf693700\\r\\nCorrelation ID: bf818c41-4092-4f7d-8292-b1275a5da62f\\r\\nTimestamp: 2017-10-17 07:22:12Z","error":"invalid_client"} Exception in thread "main" java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.util.concurrent.ExecutionException: com.microsoft.aad.adal4j.AuthenticationException: {"error_description":"AADSTS70002: Error validating credentials. AADSTS50012: Invalid client secret is provided.\\r\\nTrace ID: 1234\\r\\nCorrelation ID: 123456\\r\\nTimestamp: 2017-10-17 07:22:12Z","error":"invalid_client"} at com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:299) at com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:286) at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116) at Program.main(Program.java:88)

相应的代码正在尝试连接Azure Key Vault：

KeyVaultCredentials kvCred = new ClientSecretKeyVaultCredential("clientID", "client Secret");
    KeyVaultClient vc = new KeyVaultClient(kvCred);



    byte[] byteText = textToEncrypt.getBytes("UTF-16");

    /*************************************/

    // Get Key from Key Vault
    System.out.println("Get Key started.../n");

    start = System.currentTimeMillis();
    ServiceCallback<KeyBundle> serviceCallbackgetkey = new ServiceCallback<KeyBundle>(){
        @Override
        public void failure(Throwable t) {
            System.out.println("Get Key failed"+t.toString());

        }

        @Override
        public void success(KeyBundle result ) {//ServiceResponse
            System.out.println("Get Key Success");
            JsonWebKey myKey = result.key();
            keyIdentifier =  myKey.kid();
            System.out.println("Key ID:"+keyIdentifier);
            end = System.currentTimeMillis();       
            formatter = new DecimalFormat("#0.00000");
            System.out.print("Get Key Execution time is " + formatter.format((end - start) / 1000d) + " seconds\n");
            start = 0;
            end =0;
         }
    };

    ServiceCall<KeyBundle> call = vc.getKeyAsync(keyVaultURI, "MyKey1", serviceCallbackgetkey);

    System.out.println(call.get());

注意：我在邮递员中使用相同的Client-ID和Client Secret连接不同的REST api，并且运行良好。

另外，我尝试从此处执行以下代码。 但是面临同样的问题。

请帮助我确定为什么无法连接Vault。

Answer 1

我试图重现您的问题，但失败了。

我认为您的问题可能是由于为您的应用程序授权keyvault API的permission所致。

您可以参考下面对我有用的代码。

程序类别：

import java.io.UnsupportedEncodingException;
import java.net.URISyntaxException;
import java.util.concurrent.ExecutionException;

import com.microsoft.azure.keyvault.KeyVaultClient;
import com.microsoft.azure.keyvault.authentication.KeyVaultCredentials;


public class Program {

    public static void main(String[] args)
            throws InterruptedException, ExecutionException, URISyntaxException, UnsupportedEncodingException {

        KeyVaultCredentials kvCred = new ClientSecretKeyVaultCredential("APP_ID", "APP_SECRET");
        KeyVaultClient vc = new KeyVaultClient(kvCred);
        String keyIdentifier = "https://jaygong.vault.azure.net/keys/jaytest/b21bae081025418c806d73affc2937e0";
        System.out.println(vc.getKey(keyIdentifier));

    }
}

ClientSecretKeyVaultCredential类：

import java.net.MalformedURLException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import com.microsoft.aad.adal4j.AuthenticationContext;
import com.microsoft.aad.adal4j.AuthenticationResult;
import com.microsoft.aad.adal4j.ClientCredential;
import com.microsoft.azure.keyvault.authentication.KeyVaultCredentials;

public class ClientSecretKeyVaultCredential extends KeyVaultCredentials {
    private String applicationId;
    private String applicationSecret;

    public ClientSecretKeyVaultCredential(String applicationId, String applicationSecret) {
        this.setApplicationId(applicationId);
        this.setApplicationSecret(applicationSecret);
    }

    public String getApplicationId() {
        return applicationId;
    }

    private void setApplicationId(String applicationId) {
        this.applicationId = applicationId;
    }

    public String getApplicationSecret() {
        return applicationSecret;
    }

    private void setApplicationSecret(String applicationSecret) {
        this.applicationSecret = applicationSecret;
    }

    @Override
    public String doAuthenticate(String authorization, String resource, String scope) {
        AuthenticationResult res = null;

        try {
            res = GetAccessToken(authorization, resource, applicationId, applicationSecret);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ExecutionException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return res.getAccessToken();
    }

    private AuthenticationResult GetAccessToken(String authorization, String resource, String clientID, String clientKey)
            throws InterruptedException, ExecutionException {
        AuthenticationContext ctx = null;
        ExecutorService service = Executors.newFixedThreadPool(1);
        try {
            ctx = new AuthenticationContext(authorization, false, service);
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        Future<AuthenticationResult> resp = ctx.acquireToken(resource, new ClientCredential(
                clientID, clientKey), null);
        AuthenticationResult res = resp.get();
        return res;
    }

}

结果：

请注意，您应该授权您的应用程序使用密钥或机密。 这是官方文档中提到的powershell方法。

Set-AzureRmKeyVaultAccessPolicy -VaultName 'XXXXXXX' -ServicePrincipalName XXXXX -PermissionsToKeys decrypt,sign,get,unwrapKey

---

更新答案：

我不确定您的应用程序是否有权调用KeyVault API 。 您可以在门户网站上添加此权限。

希望对您有帮助。

Answer 2

找出问题所在，问题出在client_secret上，它在生成时具有一些特殊字符，例如％。 看来，天蓝色的密钥保险库正在接受使用base64编码及其特殊字符加密的客户端机密。