com.unboundid.util.ssl.cert

Class EllipticCurvePublicKey

java.lang.Object

com.unboundid.util.ssl.cert.DecodedPublicKey

com.unboundid.util.ssl.cert.EllipticCurvePublicKey

All Implemented Interfaces:

java.io.Serializable

@NotMutable
 @ThreadSafety(level=COMPLETELY_THREADSAFE)
public final class EllipticCurvePublicKey
extends DecodedPublicKey

This class provides a data structure for representing the information contained in an elliptic curve public key in an X.509 certificate. As per RFC 5480 section 2.2, and the Standards for Efficient Cryptography SEC 1 document.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
java.math.BigInteger	getXCoordinate() Retrieves the value of the x coordinate.
java.math.BigInteger	getYCoordinate() Retrieves the value of the y coordinate.
void	toString(java.lang.StringBuilder buffer) Appends a string representation of this decoded public key to the provided buffer.
boolean	usesCompressedForm() Indicates whether the public key uses the compressed form (which merely contains the x coordinate and an indication as to whether the y coordinate is even or odd) or the uncompressed form (which contains both the x and y coordinate values).
boolean	yCoordinateIsEven() Indicates whether the y coordinate is even or odd.

Methods inherited from class com.unboundid.util.ssl.cert.DecodedPublicKey

toString

Methods inherited from class java.lang.Object

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

Method Detail

usesCompressedForm

public boolean usesCompressedForm()

Indicates whether the public key uses the compressed form (which merely contains the x coordinate and an indication as to whether the y coordinate is even or odd) or the uncompressed form (which contains both the x and y coordinate values).

Returns:

true if the public key uses the compressed form, or false if it uses the uncompressed form.

getXCoordinate

@NotNull
public java.math.BigInteger getXCoordinate()

Retrieves the value of the x coordinate. This will always be available.

Returns:

The value of the x coordinate.

getYCoordinate

@Nullable
public java.math.BigInteger getYCoordinate()

Retrieves the value of the y coordinate. This will only be available if the key was encoded in the uncompressed form.

Returns:

The value of the y coordinate, or null if the key was encoded in the compressed form.

yCoordinateIsEven

public boolean yCoordinateIsEven()

Indicates whether the y coordinate is even or odd.

Returns:

true if the y coordinate is even, or false if the y coordinate is odd.

toString

public void toString(@NotNull
                     java.lang.StringBuilder buffer)

Appends a string representation of this decoded public key to the provided buffer.

Specified by:

toString in class DecodedPublicKey

Parameters:

buffer - The buffer to which the information should be appended.