plz help: reading certificates from client machines!

I know not many people answer *this question* as I could see in this forum.

I NEED URGENT HELP PLEASE.

I am very new to SSL/JSSE and my deadline is on my head!

I have a jsp page which when loaded on the client machine should gets its certificates stored in its browser. I have written the code as:

String Cipher_suite = (String)request.getAttribute("javax.net.ssl.cipher_suite");

//We want to retrieve the whole list of certificates

//X509Certificate[] certificateChain = (X509Certificate[])req.getAttribute("javax.net.ssl.peer_certificates");

X509Certificate[] certificateChain = (X509Certificate[])request.getAttribute("javax.servlet.request.X509Certificate");

System.out.println("****************"+certificateChain.length);

for(int counter = 0; counter < certificateChain.length;counter++)

{

X509Certificate certificate = (X509Certificate)certificateChain[counter];

str1 = certificate.getSigAlgName();

version = certificate.getVersion();

System.out.println(version);

}

I get as result:

javax.servlet.request.cipher_suite is SSL_RSA_WITH_RC4_128_MD5

javax.net.ssl.cipher_suite is SSL_RSA_WITH_RC4_128_MD5

javax.servlet.request.key_size is 128

.......but nothing else cause it cannot read browsers certificates!

Now, I have absolutely no idea of how can I retreive the info of the client's certificates stored in his browser or anywhere else. If anyone can help, plz explain in lyman terms with some code samples.....

for experts not wishing to answer, plz take two minutes to answer this.

Thanks in advance.

[1659 byte] By [PassionForJavaJ2EEa] at [2007-10-1 1:02:00]