最近，用Fabric JAVA SDK做enroll动作的时候，在读取private Key的时候出现了一个错误：
org.bouncycastle.openssl.PEMException: problem parsing PRIVATE KEY: java.lang.IllegalArgumentException: wrong version for private key info
at org.bouncycastle.openssl.PEMParser$PrivateKeyParser.parseObject(Unknown Source)
at org.bouncycastle.openssl.PEMParser.readObject(Unknown Source)
at main.SampleUser.getPrivateKeyFromBytes(SampleUser.java:163)
at main.SampleUser$1.getKey(SampleUser.java:86)
at org.hyperledger.fabric.sdk.User.userContextCheck(User.java:94)
at org.hyperledger.fabric.sdk.HFClient.setUserContext(HFClient.java:257)
at main.carDemo.main(carDemo.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodA