SunTlsRsaPremasterSecret KeyGenerator不可用

Question

我的应用程序尝试从JAVA加载RSA算法提供程序类时遇到错误。异常堆栈如下：

javax.jms.JMSException: RSA premaster secret error
at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:49)
at org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1255)
at org.apache.activemq.ActiveMQConnection.ensureConnectionInfoSent(ActiveMQConnection.java:1350)
at org.apache.activemq.ActiveMQConnection.setClientID(ActiveMQConnection.java:388)
at com.trendmicro.tmsm.TMSMAgent.open(TMSMAgent.java:63)

Caused by: javax.net.ssl.SSLKeyException: RSA premaster secret error
at com.sun.net.ssl.internal.ssl.RSAClientKeyExchange.<init>(RSAClientKeyExchange.java:97)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverHelloDone(ClientHandshaker.java:634)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:226)
at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516)
at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1112)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:623)
at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:59)
at org.apache.activemq.transport.tcp.TcpBufferedOutputStream.flush(TcpBufferedOutputStream.java:115)
at java.io.DataOutputStream.flush(DataOutputStream.java:106)
at org.apache.activemq.transport.tcp.TcpTransport.oneway(TcpTransport.java:167)
at org.apache.activemq.transport.InactivityMonitor.oneway(InactivityMonitor.java:237)
at org.apache.activemq.transport.WireFormatNegotiator.sendWireFormat(WireFormatNegotiator.java:168)
at org.apache.activemq.transport.WireFormatNegotiator.sendWireFormat(WireFormatNegotiator.java:84)
at org.apache.activemq.transport.WireFormatNegotiator.start(WireFormatNegotiator.java:74)
at org.apache.activemq.transport.failover.FailoverTransport.doReconnect(FailoverTransport.java:715)
at org.apache.activemq.transport.failover.FailoverTransport$2.iterate(FailoverTransport.java:115)
at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:122)
at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:43)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:637)

Caused by: java.security.NoSuchAlgorithmException: SunTlsRsaPremasterSecret KeyGenerator not available
at javax.crypto.KeyGenerator.<init>(DashoA13*..)
at javax.crypto.KeyGenerator.getInstance(DashoA13*..)
at com.sun.net.ssl.internal.ssl.JsseJce.getKeyGenerator(JsseJce.java:223)
at com.sun.net.ssl.internal.ssl.RSAClientKeyExchange.<init>(RSAClientKeyExchange.java:89)
... 22 more

我已经搜索了错误消息，并且大多数帖子都说这是因为JVM无法找到sunjce_provider.jar。但是，我可以在/ Library / Java /
Home / lib / ext文件夹中找到该文件。

该平台是Mac OS X 10.6，Java版本是1.6.0_17。

我的问题是：

1. 为什么JVM不会在/ Library / Java / Home / lib / ext中搜索jar文件？
2. 我们可以通过修改任何配置文件来更改CLASSPATH或java.ext.dirs属性吗？
3. 有解决这个问题的建议吗？

提前致谢。

Answer 1

我认为我们找到了根本原因，所以这是我自己的问题的答案。

1. Mac OS X 10.5中的Java系统属性“ java.ext.dirs”为：/Library/Java/Extensions:/System/Library/Java/Extensions:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0 / home / lib / ext。sunjce_provider.jar应该在/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext中，但也可以在问题Mac的/ Library / Java / Extensions /中找到。

2. / Library / Java / Extensions /中的sunjce_provider.jar属于Java加密扩展（JCE）1.2.2，已安装在Mac中。JCE 1.2.2是J2SE 1.3.1的可选软件包，可能没有足够的库供J2SE 1.4及更高版本使用。

3. 从/ Library / Java / Extensions /中删除所有与JCE 1.2.2相关的jar文件之后，Java应用程序即可正常工作。