How to send client's public key to server

The client and server are in 2 different machine.  Given the client public key (PublicKey pubC), how do i send pubC to the server and the server received it in the PublicKey format.

Below is an example i found in some some books.  It changes the public key to byte form and send it to the server.  The server received it as bytes.  However i do not know how the get it back to PublicKey form for encryption purposes.

client:
      DataOutputStream out = new DataOutputStream(s.getOutputStream());
      byte[] keyBytes = pubC.getEncode();
      out.writeInt(keyBytes.length);
      out.write(keyBytes);
      out.close();

server:
      DataInputStream in = new DataInputStream(s.getInputStream());
      byte[] keyBytes = new byte[in.readInt()];
      in.readFully(keyBytes);
      out.close();


Below is another method i had tried, but i believed it will only work if the client and the server are in the same machine.

client:
      FileOutputStream ostream = new FileOutputStream("t.tmp");
      ObjectOutputStream out = new ObjectOutputStream(ostream);
      out.writeObject(pubC);
      ostream.close();

server:
      FileInputStream istream = new FileInputStream("t.tmp");
      ObjectInputStream in = new ObjectInputStream(istream);
      PublicKey pubC = (PublicKey)in.readObject();
      istream.close();


Other things to take note are

1. I'm using JDK1.2beta3 with Cryptix-java V3.0.3
2. The public key is generated by Cryptix-java V3.0.3 using RSA algorthim
        BaseRSAKeyPairGenerator kpgC = new BaseRSAKeyPairGenerator();
        kpgC.initialize(64, new SecureRandom());
      KeyPair pairC = kpgC.generateKeyPair();
      pubC = pairC.getPublic();
      privC = pairC.getPrivate();
3. The client and server are in different machines
ksmakAsked:
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evijayConnect With a Mentor Commented:
In that case, use object serialization and serialize it to stream of
bytes and write it to output stream. then on the other end deserialize
it.
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evijayCommented:
Is the public key serializable?. In that case, use object serialization and serialize it to stream of bytes and write it to output stream. then on the other end deserialize it.


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ksmakAuthor Commented:
Thanks for the help, I've got your hint.
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