aes秘钥限制问题解决办法

在oarcle jdk1.8上执行256位的aes秘钥加密报错如下:

java.lang.RuntimeException: java.security.InvalidKeyException: Illegal key size
at com.xx.opal.core.utils.aes.AESTool.encryptWithoutEncode(AESTool.java:33)
at com.xx.opal.aes.AESTest.test(AESTest.java:19)
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:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

解决方法:

方式1:添加无限制配置

策略文件下载地址(jar包)

JDK6的下载地址:
http://www.oracle.com/technetwork/java/javase/downloads/jce-6-download-429243.html

JDK7的下载地址:
http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html

JDK8的下载地址:
http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html

下载后解压,可以看到local_policy.jar和US_export_policy.jar以及readme.txt。

如果安装了JRE,将两个jar文件放到%JRE_HOME%\lib\security下覆盖原来文件,记得先备份。

如果安装了JDK,将两个jar文件也放到%JDK_HOME%\jre\lib\security下。

方式2:使用openjdk版本(1.8及以下版本)

例如:
openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

方式3:使用1.9及以上jdk版本

方式4:使用反射接触限制

方式5:使用bc非标准api

Bouncy Castle,三方类库通常包含JCE标准实现,通过添加第三方Provider后使用JCE任然不能解决问题

方式6:设置crypto.policy属性(1.8版本)

Security.setProperty("crypto.policy", "unlimited");

结论

最终采用了设置crypto.policy属性

posted @ 2019-08-08 15:19 聚变归来 阅读(...) 评论(...) 编辑 收藏