Hi,

I am evaluating NCryptoki for our product. I have found great use of it for our product. However, We have following requirement which I could not find a way to solve through NCryptoki. Please provide me guidance if it is possible to do via NCryptoki.

I want to read and write following PIV data

- Card Holder Unique Identifier

- Card Holder Fingerprint I

- Cardholder Iris Images

etc....

I am using following code to do that.

CryptokiCollection template = new CryptokiCollection();
template.Add(new ObjectAttribute(ObjectAttribute.CKA_CLASS, CryptokiObject.CKO_DATA));
template.Add(new ObjectAttribute(ObjectAttribute.CKA_LABEL, "Card Holder Unique Identifier"));

CryptokiCollection objects = session.Objects.Find(template, 10);

if (objects.Count == 0)
{
Console.WriteLine("Nothing found");
}
else if (objects.Count > 1)
{
Console.WriteLine("More than one found");
foreach (var obj in objects)
{
Console.WriteLine(((Data)obj).Label);
}
}
else
{
Data obj = (Data)objects[0];
Console.WriteLine(obj.Label);

string val = Encoding.ASCII.GetString(obj.DataValue);

Console.WriteLine(obj.DataValue);
}
 

Nothing is returned by the Find method. I used Cryptoki Explorer and that also showed empty in the Data. However If I use a different software, I could read and write the data through their UI.

Any guidance will be appreciated.

Hi Urgo,

Thanks for your reply. I don't see anything under the Data section in Cryptoki Explorer. Still does not return anything If I pass CKO_VENDOR_DEFINED instead of CKO_DATA. However, I could see those fields under the Data Section if I use Charismathics Security Token Configurator software.

The fields being discussed are part of the pre-personalized PIV profile on Gemalto Protiva cards.

Thanks.

Hi Urgo,

Do you have PIV plugin available for me to test ?

Thanks.