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java.security.interfaces

public Interface XECPublicKey

extends XECKey, PublicKey
Known Direct Implementers
sun.security.ec.XDHPublicKeyImpl
Imports
java.math.BigInteger, java.security.PublicKey, java.security.spec.AlgorithmParameterSpec

An interface for an elliptic curve public key as defined by RFC 7748. These keys are distinct from the keys represented by ECPublicKey, and they are intended for use with algorithms based on RFC 7748 such as the XDH KeyAgreement algorithm. An XEC public key is a particular point on the curve, which is represented using only its u-coordinate as described in RFC 7748. A u-coordinate is an element of the field of integers modulo some value that is determined by the algorithm parameters. This field element is represented by a BigInteger which may hold any value. That is, the BigInteger is not restricted to the range of canonical field elements.
Since
11

Field Summary

Inherited from java.security.PublicKey:
serialVersionUID

Method Summary

Modifier and TypeMethod and Description
public default AlgorithmParameterSpec
getParams()

Overrides default java.security.AsymmetricKey.getParams.

Implements java.security.interfaces.XECKey.getParams.

Returns the parameters associated with this key.

public BigInteger

Returns:

the u-coordinate, represented using a BigInteger which may hold any value
getU
()

Get the u coordinate of the point.

Method Detail

getParamsback to summary
public default AlgorithmParameterSpec getParams()

Overrides default java.security.AsymmetricKey.getParams.

Implements java.security.interfaces.XECKey.getParams.

Doc from java.security.AsymmetricKey.getParams.

Returns the parameters associated with this key. The parameters are optional and may be either explicitly specified or implicitly created during key pair generation.

Implementation Specification

The default implementation returns null.

Annotations
@Override
getUback to summary
public BigInteger getU()

Get the u coordinate of the point.

Returns:BigInteger

the u-coordinate, represented using a BigInteger which may hold any value