iaik.security.ecc.math.ecgroup
Class CoordinateTypes

java.lang.Object
  iaik.security.ecc.math.ecgroup.CoordinateTypes

public class CoordinateTypes

extends java.lang.Object

Enumerates all known types of coordinates.

Field Summary

static int	AFFINE_COORDINATES Id for affine coordinates.
protected static java.util.Hashtable	defaultCoordinates_ Maps fieldID->coordinatesID
static int	MIXED_COORDINATES Id for mixed (projective and affine) coordinates.
static int	PROJECTIVE_COORDINATES Id for projective coordinates, compliant to IEEE 1363

Constructor Summary

CoordinateTypes()

Method Summary

static int	getDefaultCoordinates(int fieldID) Gets the coordinate type to be used for a certain field.
static void	setDefaultCoordinates(int fieldID, int coordinateType) Sets the default coordinate type for a certain field type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

AFFINE_COORDINATES

public static final int AFFINE_COORDINATES

Id for affine coordinates.

See Also:

ECDSAParameter.ECDSAParameter(ECCParameterSpec, int), Constant Field Values

PROJECTIVE_COORDINATES

public static final int PROJECTIVE_COORDINATES

Id for projective coordinates, compliant to IEEE 1363

See Also:

ECDSAParameter.ECDSAParameter(ECCParameterSpec, int), Constant Field Values

MIXED_COORDINATES

public static final int MIXED_COORDINATES

Id for mixed (projective and affine) coordinates.

See Also:

Constant Field Values

defaultCoordinates_

protected static java.util.Hashtable defaultCoordinates_

Maps fieldID->coordinatesID

Constructor Detail

CoordinateTypes

public CoordinateTypes()

Method Detail

getDefaultCoordinates

public static int getDefaultCoordinates(int fieldID)

Gets the coordinate type to be used for a certain field.

Parameters:

fieldID - the field identifier

Returns:

the coordinates to be used.

setDefaultCoordinates

public static void setDefaultCoordinates(int fieldID,
                                         int coordinateType)

Sets the default coordinate type for a certain field type.

Parameters:

fieldID - the field identifier.

coordinateType - the coordinate type to be used.