Interface XECPublicKey
- All Superinterfaces:
AsymmetricKey, BinaryEncodablePREVIEW, Key, PublicKey, Serializable, XECKey
public interface XECPublicKey extends XECKey, PublicKey
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
Fields declared in interface PublicKey
serialVersionUID | Modifier and Type | Field | Description |
|---|---|---|
static final long |
serialVersionUID |
Deprecated. |
Method Summary
| Modifier and Type | Method | Description |
|---|---|---|
default AlgorithmParameterSpec |
getParams() |
Returns the parameters associated with this key. |
BigInteger |
getU() |
Get the u coordinate of the point. |
Methods declared in interface Key
getAlgorithm, getEncoded, getFormat | Modifier and Type | Method | Description |
|---|---|---|
String |
getAlgorithm() |
Returns the standard algorithm name for this key. |
byte[] |
getEncoded() |
Returns the key in its primary encoding format, or null if this key does not support encoding. |
String |
getFormat() |
Returns the name of the primary encoding format of this key, or null if this key does not support encoding. |
Method Details
getU
BigInteger getU()
Get the u coordinate of the point.
- Returns:
- the u-coordinate, represented using a BigInteger which may hold any value
getParams
default AlgorithmParameterSpec 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.
- Specified by:
-
getParamsin interfaceAsymmetricKey - Specified by:
-
getParamsin interfaceXECKey - Implementation Requirements:
- The default implementation returns
null. - Returns:
- the associated parameters, may be
null
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serialVersionUIDfield in an interface is ineffectual.