Hi Sudha,
Yes, you can check for existence of smart card by using the
nsIPK11Token.isHardwareToken() method.
(http://mxr.mozilla.org/mozilla-central/source/security/manager/ssl/public/nsIPK11Token.idl#88)
You can iterate of all the tokens, and check for existence of hard token
a follows:
function checkForHardToken()
{
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
var /* nsIPK11Token */ tokenDB = null;
tokenDB = Components.classes["@mozilla.org/security/pk11tokendb;1"]
.getService(Components.interfaces.nsIPK11TokenDB);
var foundHardToken = false;
var tokenList = tokenDB.listTokens();
try {
for ( ; !tokenList.isDone(); tokenList.next()) {
var tokenItem = tokenList.currentItem();
var /* nsIPK11Token */ token =
tokenItem.QueryInterface(Components.interfaces.nsIPK11Token);
// First, check for an initialized token that needs log-in
if (token.needsLogin() || !(token.needsUserInit)) {
// Check for it is hardware token.
if (token.isHardwareToken()) {
foundHardToken = true;
break;
}
}
}
} catch(ex) {
}
return foundHardToken;
}
Given a X.509 cert, you also check if the cert is associated with a
smart-card as follows:
function isCertInHardToken(/* nsIX509Cert*/ aX509Cert)
{
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
if (!aX509Cert) {
false;
}
var tokenDB = Components.classes["@mozilla.org/security/pk11tokendb;1"]
.getService(Components.interfaces.nsIPK11TokenDB);
var /* nsIPK11Token */ token =
tokenDB.findTokenByName(aX509Cert.tokenName);
if (!token) {
return false;
}
return token.isHardwareToken();
}
Treat the above code fragments as pseudo code - I did not test them.
--
Subrata
On 01/25/2010 11:17 AM, sudha dhanwada wrote:
Hi
I am looking for some help with Javascript to communicate with smart card. I
have a PKI application through which we can request a windows logon
certificate for a smart card. I am using the keygen tag which allows us to
choose the security device I want to use(provided the security device is
loaded on Firefox).
I would like to make sure that a smart card is connected to the PC and
loaded on the browser before I invoke the keygen tag to go thro the
certificate generation process.
I know there are events for smart card insert and remove. But is there
anything in javascript that I could use to make sure that there is a smart
card connected...
Any help would be much appreciated
- sudha
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