[Trustedjava-support] FIrst Application - having problems

[Donnie . <abd...@ho...>]

Dear Developers,

I have recently started working on jTss with TPM Emulator.

I run TPM Emulator with no problem. I have downloaded and unziped jTss in ubuntu. I am just experimenting whether jTss is working or not. so I wrote a simple program to connect the TcIContext. But it is giving me error that > Unable to open TPM device file /dev/tpm. Reason: /dev/tpm (Input/output error).

Though I have changed the permissions of /dev/tpm* by using the command chmod 777, but still its not working.
My code is given below:


public class firstClass {

    /**
     * @param args
     */
    public static void main(String[] args) {
        
        // TODO Auto-generated method stub
        
        try {
            TcIContext context = new TcTssContextFactory().newContextObject();
            context.connect();
            context.closeContext();
    
            
        }catch (TcTssException e) {
            e.printStackTrace();
            
        }

    }

}

What might be the problem? and how can i solve it in ubuntu i.e, i can be able to read/write /dev/tpm file?

Secondly I wana ask you that while making a java application, which will be using TPM, wat I hav to do, whether I hav to import only the related libraries from jTss folder or I hav to import whole jTss folder into my eclipse to run my application? I am confused about it. Because my be there is some setup to do before making java application in ubuntu.

Waiting for your replies.

THanks,
Best Regards,
iennoD






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