AWS Cognito android未经认证的凭据问题

Question

我试图将认知身份池与android应用程序集成，首先需要能够从未经身份验证的用户访问AWS资源。我使用的是Cognito控制台中提供的示例代码，但当我试图运行该部分时，我总是收到错误。我创建了一个只有一个按钮的沙箱环境，它所做的就是运行Cognito控制台提供的代码。

代码如下：

CognitoCachingCredentialsProvider credentialsProvider = new CognitoCachingCredentialsProvider(
    getApplicationContext(),
    "[IDENTITYPOOLID]", // Identity pool ID
    Regions.US_EAST_1 // Region
);

以下是错误：

I/AWSKeyValueStore: Detected Android API Level = 30
    Creating the AWSKeyValueStore with key for sharedPreferencesForData = com.amazonaws.android.auth
E/AWSKeyValueStore: com.amazonaws.internal.keyvaluestore.KeyNotFoundException: Error occurred while accessing AndroidKeyStore to retrieve the key for keyAlias: com.amazonaws.android.auth.aesKeyStoreAlias
I/AWSKeyValueStore: Deleting the encryption key identified by the keyAlias: com.amazonaws.android.auth.aesKeyStoreAlias
E/AWSKeyValueStore: Error in retrieving the decryption key used to decrypt the data from the persistent store. Returning null for the requested dataKey = [IDENTITYPOOLID].identityId
D/CognitoCachingCredentia: Loading credentials from SharedPreferences
E/AWSKeyValueStore: com.amazonaws.internal.keyvaluestore.KeyNotFoundException: Error occurred while accessing AndroidKeyStore to retrieve the key for keyAlias: com.amazonaws.android.auth.aesKeyStoreAlias
I/AWSKeyValueStore: Deleting the encryption key identified by the keyAlias: com.amazonaws.android.auth.aesKeyStoreAlias
E/AWSKeyValueStore: Error in retrieving the decryption key used to decrypt the data from the persistent store. Returning null for the requested dataKey = [IDENTITYPOOLID].expirationDate
E/AWSKeyValueStore: com.amazonaws.internal.keyvaluestore.KeyNotFoundException: Error occurred while accessing AndroidKeyStore to retrieve the key for keyAlias: com.amazonaws.android.auth.aesKeyStoreAlias
I/AWSKeyValueStore: Deleting the encryption key identified by the keyAlias: com.amazonaws.android.auth.aesKeyStoreAlias
E/AWSKeyValueStore: Error in retrieving the decryption key used to decrypt the data from the persistent store. Returning null for the requested dataKey = [IDENTITYPOOLID].identityId

Pixel 3 XL API 30
Pixel 2 API 27

    implementation 'com.amazonaws:aws-android-sdk-cognitoidentityprovider:2.16.12'
    implementation 'com.amazonaws:aws-android-sdk-core:2.16.12'

标识池启用了对未经身份验证的标识的访问，并具有与未经身份验证的标识相关联的角色。请提供有关如何使credentialsProvider工作以便与标识池中的其他AWS服务一起使用的建议。

Answer 1

我遇到了同样的问题

020-10-03 08:07:14.759 11293-11293/com.example.uanddus i/AWSKeyValueStore：用sharedPreferencesForData=com.amazonaws.android.auth 2020-10-03 08:07:14.772 112 93-11293/com.example.uanddus e/AWSKeyValueStore：com.amazonaws.internal.keyValueStore检索keyalias：com.amazonaws.android.auth.aeskeyStoreIas的密钥时出错

以下是我所做的对我有效的事情：

>

aws配置文件中缺少详细信息。确保在app/res/raw中有awsconfiguration.json，并包含以下内容

{ "Version": "0.1.0", "IdentityManager": { "Default": {} }, "CredentialsProvider": { "CognitoIdentity": { "Default": { "PoolId": "us-east-1:XXXXX", "Region": "us-east-1" } } }, "CognitoUserPool": { "Default": { "AppClientId": "XXXXX", "PoolId": "us-east-1_XXXXX", "Region": "us-east-1" } } }

请将XXX替换为实际值，您必须在aws控制台中有这些值，并搜索cognito，您应该看到管理用户池和管理标识池，如果还没有创建请创建用户池和池，然后在aws配置文件中输入标识池ID和用户池poolid和c lientid详细信息

>

IF可能低于错误

  int SDK_INT = android.os.Build.VERSION.SDK_INT;
    if (SDK_INT > 8)
    {
        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
                .permitAll().build();
        StrictMode.setThreadPolicy(policy);
    }