Question on IKE preshared key for sun systems.

Hi All
I'm testing IPsec between a Sun system and a device(and Windows XP). The main mode negotiation failed in the third exchange when encryption is on. Responder side complains about the payload sent from the other side is malformed. I suspect the problem is related to the preshared key configuration. Sun system require a hexdecimal on preshared key and the resulting key length should be at least of what encryption algorithm require(from IP service manual:
The encryption algorithm in this example (see Step 2) is DES, so the pre-shared key must be at least 64 bits. However, a longer key length is a good idea. For example,
# ike.preshared on enigma, 192.168.66.1
{ localidtype IP
     localid 192.168.66.1
     remoteidtype IP
     remoteid 192.168.55.2
     # enigma and partym's shared key in hex (128 bits)
     key ac077cc699c17055848a3cf34377980a
My question is that how should I configure the preshared key to match the one in Sun? like in windows system? I tried to use the exact same key on windows, but the authentication failed. If the problem is not from preshared key, any comments are welcome.
Thanks a lot!

To restore key from encoded data you have to use one of the KeySpec lasses in your case DESKeySpec. Then you can use KeyFactory (SecretKeyFactory in this case) class to regenerate key.
SecretKeyFactory factory = SecretKeyFactory.getInstance("DES", "SunJCE");
myDESkey = factory.generateSecret(keySpec);

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Question on IKE preshared key for sun systems.

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