java1.8加解密异常--java.lang.IllegalArgumentException: Unable to initialize due to invalid secret key

因为某些国家的进口管制限制，Java发布的运行环境包中的加解密有一定的限制。比如默认不允许256位密钥的AES加解密，解决方法就是修改策略文件。 

 java.lang.IllegalArgumentException: Unable to initialize due to invalid secret key

     at org.springframework.security.crypto.encrypt.CipherUtils.initCipher(CipherUtils.java:120)
     at org.springframework.security.crypto.encrypt.AesBytesEncryptor.encrypt(AesBytesEncryptor.java:115)
     at org.springframework.security.crypto.encrypt.HexEncodingTextEncryptor.encrypt(HexEncodingTextEncryptor.java:36)
     at com.zzy.boot.black.hole.security.application.security.EncryptorTest.testBytesEncryptor(EncryptorTest.java:31)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     at java.lang.reflect.Method.invoke(Method.java:498)
     at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
     at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
     at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
     at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
     at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
     at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
     at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
     at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
     at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
     at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
     at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
     at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
     at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
     at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
     at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
     at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
     at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
     at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     at java.lang.reflect.Method.invoke(Method.java:498)
     at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
 Caused by: java.security.InvalidKeyException: Illegal key size
     at javax.crypto.Cipher.checkCryptoPerm(Cipher.java:1039)
     at javax.crypto.Cipher.implInit(Cipher.java:805)
     at javax.crypto.Cipher.chooseProvider(Cipher.java:864)
     at javax.crypto.Cipher.init(Cipher.java:1396)
     at javax.crypto.Cipher.init(Cipher.java:1327)
     at org.springframework.security.crypto.encrypt.CipherUtils.initCipher(CipherUtils.java:113)
     ... 30 more

需要下载： 

http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html

下载后放到jdk的security目录，比如： D:\Soft\Java\jdk1.8.111\jre\lib\security 然后重启工具即可