XECPublicKey
public
interface
XECPublicKey
implements
XECKey,
PublicKey
java.security.interfaces.XECPublicKey
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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.
Summary
Inherited constants |
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From interface
java.security.Key
long |
serialVersionUID
This constant was deprecated
in API level 34.
A serialVersionUID field in an interface is
ineffectual. Do not use; no replacement.
|
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Public methods |
abstract
BigInteger
|
getU()
Get the u coordinate of the point.
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Inherited methods |
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From interface
java.security.Key
abstract
String
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getAlgorithm()
Returns the standard algorithm name for this key.
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abstract
byte[]
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getEncoded()
Returns the key in its primary encoding format, or null
if this key does not support encoding.
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abstract
String
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getFormat()
Returns the name of the primary encoding format of this key,
or null if this key does not support encoding.
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Public methods
getU
public abstract BigInteger getU ()
Get the u coordinate of the point.
Returns |
BigInteger |
the u-coordinate, represented using a BigInteger which may hold
any value |