java调用公钥_java 使用byte生成公钥报错

我在使用java生成公钥的时候报了如下错误

java.security.spec.InvalidKeySpecException: java.lang.IllegalStateException: DEF length 26 object truncated by 8

at com.sansec.jce.provider.JDKKeyFactory.engineGeneratePublic(JDKKeyFactory.java:94)

at com.sansec.jce.provider.JDKKeyFactory$SM2.engineGeneratePublic(JDKKeyFactory.java:392)

at java.security.KeyFactory.generatePublic(KeyFactory.java:328)

at test.com.ciphergateway.Sm2Test.test(Sm2Test.java:35)

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:119)

at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)

at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)

at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)

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:144

下面是我的代码:

@Test

public void test() throws Exception {

X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(Bytes.hex2bytes(k1));

KeyFactory factory = KeyFactory.getInstance("SM2", SW_PROVIDER_NAME);

factory.generatePublic(publicKeySpec);

}

private String k1 = "A042B3149A1AD922934EF53A92133B9FB3D163B825499ABD0F" +

"1B08FF4A7905F5166C930EBFC963D57D3716EA27802AA511A9" +

"7F114919B4727CB76037C37803A";

哪位可以指导一下