Class SecpPubKeyImpl

java.lang.Object

org.bitcoinj.secp.internal.SecpPubKeyImpl

All Implemented Interfaces:

Serializable, AsymmetricKey, DEREncodablePREVIEW, ECKey, ECPublicKey, Key, PublicKey, SecpPoint, SecpPoint.Point, SecpPoint.Uncompressed, SecpPubKey

public class SecpPubKeyImpl
extends Object
implements SecpPubKey

Default/Internal SecpPubKey implementation storing as SecpPointUncompressed.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface SecpPoint

SecpPoint.Compressed, SecpPoint.Infinity, SecpPoint.Point, SecpPoint.Uncompressed

Field Summary

Fields inherited from interface ECPublicKey

serialVersionUID

Fields inherited from interface SecpPoint

POINT_INFINITY

Constructor Summary

Constructors

Constructor	Description
SecpPubKeyImpl(ECPoint ecPoint)
SecpPubKeyImpl(SecpPointUncompressed point)
SecpPubKeyImpl(SecpPoint.Uncompressed point)

Method Summary

Modifier and Type	Method	Description
SecpPoint.Compressed	compress()	Convert to a compressed point.
SecpECPoint	getW()	Returns this key as a SecpECPoint or, if it is the "point at infinity" it returns ECPoint.POINT_INFINITY
boolean	isOdd()	Get the parity of the y-coordinate field value
static SecpPubKey	ofPoint(ECPoint ecPoint)	Construct a public key from an ECPoint
SecpPoint.Uncompressed	point()	Get the uncompressed SecpPoint
String	toString()
SecpFieldElement	x()	Get the x-coordinate field value
SecpFieldElement	y()	Get the y-coordinate field value

Methods inherited from class Object

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

Methods inherited from interface SecpPoint.Uncompressed

toECPoint

Methods inherited from interface SecpPubKey

getAlgorithm, getCompressed, getEncoded, getFormat, getParams, getUncompressed, serialize, serialize, xOnly

Constructor Details

SecpPubKeyImpl

public SecpPubKeyImpl(SecpPointUncompressed point)

SecpPubKeyImpl

public SecpPubKeyImpl(SecpPoint.Uncompressed point)

SecpPubKeyImpl

public SecpPubKeyImpl(ECPoint ecPoint)

Method Details

ofPoint

public static SecpPubKey ofPoint(ECPoint ecPoint)

Construct a public key from an ECPoint

Parameters:

ecPoint - the point

Returns:

the pubkey

getW

public SecpECPoint getW()

Description copied from interface: SecpPubKey

Returns this key as a SecpECPoint or, if it is the "point at infinity" it returns ECPoint.POINT_INFINITY

Specified by:

getW in interface ECPublicKey

Specified by:

getW in interface SecpPubKey

Returns:

point as ECPoint or subclass.

point

public SecpPoint.Uncompressed point()

Description copied from interface: SecpPubKey

Get the uncompressed SecpPoint

Specified by:

point in interface SecpPubKey

Returns:

point

toString

public String toString()

Overrides:

toString in class Object

y

public SecpFieldElement y()

Description copied from interface: SecpPoint.Uncompressed

Get the y-coordinate field value

Specified by:

y in interface SecpPoint.Uncompressed

Returns:

y-coordinate

compress

public SecpPoint.Compressed compress()

Description copied from interface: SecpPoint.Uncompressed

Convert to a compressed point.

Specified by:

compress in interface SecpPoint.Uncompressed

Returns:

compressed point

x

public SecpFieldElement x()

Description copied from interface: SecpPoint.Point

Get the x-coordinate field value

Specified by:

x in interface SecpPoint.Point

Returns:

x-coordinate

isOdd

public boolean isOdd()

Description copied from interface: SecpPoint.Point

Get the parity of the y-coordinate field value

Specified by:

isOdd in interface SecpPoint.Point

Returns:

true if odd, false if even