我正在尝试使用提供的示例“ SendEventX509.java”发送消息，但我遇到了问题。 下面提到的Stacktrace

Question

我正在尝试使用提供的示例“ SendEventX509.java”发送消息，但我遇到了问题。 下面提到的Stacktrace OS-Windows 10

使用的Java运行时：JDK 11.0.3

使用的SDK版本：IoT中心Java设备SDK 1.17.5

https://github.com/Azure/azure-iot-sdk-java/blob/master/device/iot-device-samples/send-event-x509/src/main/java/samples/com/中提供的示例microsoft / azure / sdk / iot / SendEventX509.java “

证书已从“ ProvisioningX509CertGen.java”生成，并且设备已成功注册并通过X509证明在IoTHub中提供。

问题的控制台日志：

Exception in thread "main" java.io.IOException: Could not open the connection
at com.microsoft.azure.sdk.iot.device.DeviceIO.open(DeviceIO.java:164)
at com.microsoft.azure.sdk.iot.device.InternalClient.open(InternalClient.java:130)
at com.microsoft.azure.sdk.iot.device.DeviceClient.open(DeviceClient.java:317)
at samples.com.microsoft.azure.sdk.iot.SendEventX509.main(SendEventX509.java:136)
Caused by: com.microsoft.azure.sdk.iot.device.exceptions.TransportException: java.io.IOException: java.security.KeyStoreException: Key protection algorithm not found: java.security.UnrecoverableKeyException: Encrypt Private Key failed: password has been cleared
at com.microsoft.azure.sdk.iot.device.transport.mqtt.MqttIotHubConnection.open(MqttIotHubConnection.java:204)
at com.microsoft.azure.sdk.iot.device.transport.IotHubTransport.openConnection(IotHubTransport.java:700)
at com.microsoft.azure.sdk.iot.device.transport.IotHubTransport.open(IotHubTransport.java:280)
at com.microsoft.azure.sdk.iot.device.DeviceIO.open(DeviceIO.java:160)
... 3 more
Caused by: java.io.IOException: java.security.KeyStoreException: Key protection algorithm not found: java.security.UnrecoverableKeyException: Encrypt Private Key failed: password has been cleared
at com.microsoft.azure.sdk.iot.device.auth.IotHubX509SoftwareAuthenticationProvider.getSSLContext(IotHubX509SoftwareAuthenticationProvider.java:66)
at com.microsoft.azure.sdk.iot.device.transport.mqtt.MqttIotHubConnection.open(MqttIotHubConnection.java:125)
... 6 more
Caused by: java.security.KeyStoreException: Key protection algorithm not found: java.security.UnrecoverableKeyException: Encrypt Private Key failed: password has been cleared
at java.base/sun.security.pkcs12.PKCS12KeyStore.setKeyEntry(PKCS12KeyStore.java:704)
at java.base/sun.security.pkcs12.PKCS12KeyStore.engineSetKeyEntry(PKCS12KeyStore.java:601)
at java.base/sun.security.util.KeyStoreDelegator.engineSetKeyEntry(KeyStoreDelegator.java:111)
at java.base/java.security.KeyStore.setKeyEntry(KeyStore.java:1174)
at com.microsoft.azure.sdk.iot.deps.auth.IotHubSSLContext.generateSSLContextWithKeys(IotHubSSLContext.java:208)
at com.microsoft.azure.sdk.iot.deps.auth.IotHubSSLContext.(IotHubSSLContext.java:168)
at com.microsoft.azure.sdk.iot.device.auth.IotHubX509SoftwareAuthenticationProvider.generateSSLContext(IotHubX509SoftwareAuthenticationProvider.java:96)
at com.microsoft.azure.sdk.iot.device.auth.IotHubX509SoftwareAuthenticationProvider.getSSLContext(IotHubX509SoftwareAuthenticationProvider.java:56)
... 7 more
Caused by: java.security.UnrecoverableKeyException: Encrypt Private Key failed: password has been cleared
at java.base/sun.security.pkcs12.PKCS12KeyStore.encryptPrivateKey(PKCS12KeyStore.java:951)
at java.base/sun.security.pkcs12.PKCS12KeyStore.setKeyEntry(PKCS12KeyStore.java:641)
... 14 more
Caused by: java.lang.IllegalStateException: password has been cleared
at java.base/javax.crypto.spec.PBEKeySpec.getPassword(PBEKeySpec.java:196)
at org.bouncycastle.jcajce.provider.symmetric.util.BCPBEKey.getPassword(Unknown Source)
at java.base/com.sun.crypto.provider.PKCS12PBECipherCore.implInit(PKCS12PBECipherCore.java:268)
at java.base/com.sun.crypto.provider.PKCS12PBECipherCore.implInit(PKCS12PBECipherCore.java:379)
at java.base/com.sun.crypto.provider.PKCS12PBECipherCore.implInit(PKCS12PBECipherCore.java:364)
at java.base/com.sun.crypto.provider.PKCS12PBECipherCore$PBEWithSHA1AndDESede.engineInit(PKCS12PBECipherCore.java:473)
at java.base/javax.crypto.Cipher.implInit(Cipher.java:847)
at java.base/javax.crypto.Cipher.chooseProvider(Cipher.java:901)
at java.base/javax.crypto.Cipher.init(Cipher.java:1576)
at java.base/javax.crypto.Cipher.init(Cipher.java:1507)
at java.base/sun.security.pkcs12.PKCS12KeyStore.encryptPrivateKey(PKCS12KeyStore.java:934)
... 15 more

请帮助解决此问题

Answer 1

自Java 9以来，默认的密钥库类型已从jks更改为pkcs12。似乎以上的Azure SDK代码可与JKS密钥库一起正常使用。 您有两种选择：

1. 将Java 11 jdk / jre安装中的java.security文件中的keystore.type更改为jks。 这将对所有应用程序产生更广泛的影响。 所以要小心

2. 如果您已从github克隆了完整的Azure样本回购，请更改com.microsoft.azure.sdk.iot.deps.auth.IotHubSSLContext.generateSSLContextWithKeys（）并获取JKS密钥库的实例，而不是默认实例。 所以改变：

   KeyStore keystore = KeyStore.getInstance（KeyStore.getDefaultType（））;

至

KeyStore keystore = KeyStore.getInstance("jks");

希望可以帮到您。