public void ExportDataObject(Pkcs11DataObjectInfo objectInfo, out string fileName, out byte[] fileContent)
{
if (this._disposed)
{
throw new ObjectDisposedException(this.GetType().FullName);
}
if (objectInfo == null)
{
throw new ArgumentNullException("objectInfo");
}
using (Session session = _slot.OpenSession(SessionType.ReadWrite))
{
List <ulong> attributes = new List <ulong>();
attributes.Add((ulong)CKA.CKA_LABEL);
attributes.Add((ulong)CKA.CKA_VALUE);
List <ObjectAttribute> objectAttributes = session.GetAttributeValue(objectInfo.ObjectHandle, attributes);
fileName = objectAttributes[0].GetValueAsString();
fileName = (!string.IsNullOrEmpty(fileName)) ? Utils.NormalizeFileName(fileName) : "data_object";
fileContent = objectAttributes[1].GetValueAsByteArray();
}
}
private List <Pkcs11DataObjectInfo> ReadDataObjects()
{
List <Pkcs11DataObjectInfo> infos = new List <Pkcs11DataObjectInfo>();
using (Session session = _slot.OpenSession(SessionType.ReadWrite))
{
List <ObjectAttribute> searchTemplate = new List <ObjectAttribute>();
searchTemplate.Add(new ObjectAttribute(CKA.CKA_CLASS, CKO.CKO_DATA));
List <ObjectHandle> foundObjects = session.FindAllObjects(searchTemplate);
foreach (ObjectHandle foundObject in foundObjects)
{
// Read attributes required for sane object presentation
List <ulong> attributes = new List <ulong>();
attributes.Add((ulong)CKA.CKA_PRIVATE);
attributes.Add((ulong)CKA.CKA_LABEL);
attributes.Add((ulong)CKA.CKA_APPLICATION);
List <ObjectAttribute> requiredAttributes = session.GetAttributeValue(foundObject, attributes);
// Read attributes configured for specific object class
attributes = new List <ulong>();
foreach (ClassAttribute classAttribute in Pkcs11Admin.Instance.Config.DataObjectAttributes.CommonAttributes)
{
attributes.Add(classAttribute.Value);
}
List <ObjectAttribute> configuredAttributes = session.GetAttributeValue(foundObject, attributes);
// Read object storage size
ulong?storageSize = ReadObjectSize(session, foundObject);
// Construct info object
Pkcs11DataObjectInfo info = new Pkcs11DataObjectInfo(foundObject, configuredAttributes, storageSize)
{
CkaPrivate = requiredAttributes[0].GetValueAsBool(),
CkaLabel = requiredAttributes[1].GetValueAsString(),
CkaApplication = requiredAttributes[2].GetValueAsString(),
StorageSize = storageSize
};
infos.Add(info);
}
}
return(infos);
}
