[Jsdsi-users] Inquiry about sending Serialized Certificates’ objects

[Somaya A. <som...@ya...>]

  Hi Sameer,
   
  I have an inquiry please. After creating and signing the certificate, I wanted to send it to another agent as a serialized object. However, at the relieving agent I do the following to deserailze the certificate object:
   
  ObjectInputStream oin = new ObjectInputStream(new ByteArrayInputStream(data)); 
  // data is a byte array that contain a byte sequence of the received serialized certificate.
  java.io.Serializable s = (java.io.Serializable)oin.readObject();
   
  However I got an exception at oin.readObject(); The exception was as follows:
   
  java.lang.NoClassDefFoundError: cryptix/util/mime/Base64InputStream
        at jsdsi.sexp.ObjInputStream.<init>(ObjInputStream.java:40)
        at jsdsi.sexp.CertificateFactory.readObj(CertificateFactory.java:43)
        at jsdsi.sexp.CertificateFactory.readCertificate(CertificateFactory.java:48)
        at jsdsi.sexp.CertificateFactory.engineGenerateCertificate(CertificateFactory.java:59)
        at java.security.cert.CertificateFactory.generateCertificate(Unknown Source)
        at java.security.cert.Certificate$CertificateRep.readResolve(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at java.io.ObjectStreamClass.invokeReadResolve(Unknown Source)
        at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
        at java.io.ObjectInputStream.readObject0(Unknown Source)
        at java.io.ObjectInputStream.readObject(Unknown Source)
   
  Then I have included the file cryptix32.jar to the classpath, and it’s now working with no exceptions.
   
  But I don’t understand what’s happening .. Why I need to include this file to the classpath?? Isn’t it included inside JSDSI by default? Is there any other solution for the above exception other than this?
   
  Many Thanks
  Somaya


		
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