How to use gssapi in java applet?

[lizhong]

Hi all,
    I'm trying to build a applet client to connect to the gss-server.c program(in kerberos/src/app/gss-sample). I read this page:
http://java.sun.com/j2se/1.5.0/docs/guide/security/jgss/tutorials/BasicClientServer.html
    And I have already built a java application client to connect to the C server. Like this:
D:\test\client>java -Djava.security.krb5.realm=stg.com -Djava.security.krb5.kdc=192.168.100.100 -Djavax.security.auth.useSubjectCredsOnly=false -Djava.security.auth.login.config=bcsLogin.conf SampleClient vnc/gdnode014 192.168.100.14 4444
Connected to server /192.168.100.14
Kerberos username [Administrator]: test/admin
 test/admin µÄ Kerberos key: xxxxxx
Will send token of size 453 from initSecContext.
Will read input token of size 114 for processing by initSecContext
Context Established!
Client is test/admin at stg.com
Server is vnc/gdnode014
Mutual authentication took place!
Will send wrap token of size 61
Will read token of size 37
Verified received MIC for message.
Exiting...

D:\test\client>

    But how can I change this client to a applet? I have two questions:
1.How can I use the parameters of cmd "java"(such as " -Djava.security.krb5.realm=stg.com ") to start the applet?
2.How can I input the username and password? In the java application, this work is done by token = context.initSecContext(token, 0, token.length), and the output/input are in the stdio form.

    Thank you for any help!

--
LiZhong