com.ibm.opencard.access
Class MFCAccessorFactory
java.lang.Object
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+--com.ibm.opencard.access.MFCAccessorFactory
- Direct Known Subclasses:
- MFCSMAccessorFactory
- public class MFCAccessorFactory
- extends java.lang.Object
A factory class for creating card accessors.
Here, the term factory refers to the design technique, not to
OCF card service factories.
The MFC card services use card accessors to satisfy access conditions.
MFC access conditions include simple ones like password protection (CHV)
as well as cryptographic ones. Since cryptography causes problems with
US export restrictions, accessors are created in their own factory. One
factory supports export free password protection, the other one supports
cryptographic accessors, too. The Java reflection functionality is used
to decide whether the export restricted accessor features are available.
- Version:
- $Id: MFCAccessorFactory.java,v 1.1 1999/12/02 16:06:00 damke Exp $
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Constructor Summary |
protected |
MFCAccessorFactory()
Instantiates a factory for export free accessors. |
| Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
MFCAccessorFactory
protected MFCAccessorFactory()
- Instantiates a factory for export free accessors.
setName
public static void setName(java.lang.String name)
- Provides the name of an extended accessor factory.
This method has to be invoked before newAccessor is invoked
for the first time. On the first invocation of that method, it is
checked whether the class with the given name can be instantiated.
If so, it is used as the accessor factory. Otherwise, this factory
will be used to create export free accessors.
If this method is not invoked in time, the default name will be used.
The default name is that of IBM's accessor factory supporting crypto
access conditions.
- Parameters:
name - the name of an extended accessor factory class- See Also:
newAccessor(int)
newAccessor
public static MFCCardAccessor newAccessor(int cos)
- Creates a new card accessor.
On the first invocation of this method, an accessor factory will be
created and stored in accessor_factory. This factory will be
used for creating card accessors until the virtual machine terminates.
This method invokes newCardAccessor on the factory and returns
the result.
- Parameters:
cos - the CardOS indicator, see IBMMFCConstants- Returns:
- a newly created card accessor
- See Also:
newCardAccessor(int),
IBMMFCConstants
newCardAccessor
protected MFCCardAccessor newCardAccessor(int cos)
- Creates a new export free card accessor.
The card accessor returned supports password input (CHV),
but neither authetication nor protection nor encryption.
This method can be overridden to return an extended accessor.
It is invoked by newAccessor.
- Parameters:
cos - the CardOS indicator, see IBMMFCConstants- Returns:
- a newly created card accessor
- See Also:
newAccessor(int),
IBMMFCConstants
getACParser
public static MFCAccessParser getACParser(int cos)
- Returns a parser for access conditions.
Currently, there is only one access condition parser for all MFC cards.
The parser is created on the first invocation and re-used later. It is
needed by select response parsers.
- Parameters:
cos - the CardOS indicator, see IBMMFCConstants- Returns:
- an access condition parser for the CardOS
- See Also:
IBMMFCConstants,
MFCSelectResponseParser
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