public final class EdECPoint extends Object
ECPoint
, and they are intended for use with algorithms based on RFC 8032 such as the EdDSA Signature
algorithm. An EdEC point is specified by its y-coordinate value and a boolean that indicates whether the x-coordinate is odd. The y-coordinate is an element of the field of integers modulo some value p that is determined by the algorithm parameters. This field element is represented by a BigInteger
, and implementations that consume objects of this class may reject integer values which are not in the range [0, p).
Constructor | Description |
---|---|
EdECPoint |
Construct an EdECPoint. |
Modifier and Type | Method | Description |
---|---|---|
BigInteger |
getY() |
Get the y-coordinate of the point. |
boolean |
isXOdd() |
Get whether the x-coordinate of the point is odd. |
public EdECPoint(boolean xOdd, BigInteger y)
xOdd
- whether the x-coordinate is odd.y
- the y-coordinate, represented using a BigInteger
.NullPointerException
- if y
is null.public boolean isXOdd()
public BigInteger getY()
BigInteger
.
© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/security/spec/EdECPoint.html