Interface XECPublicKey
- All Superinterfaces:
AsymmetricKey,Key,PublicKey,Serializable,XECKey
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
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Field Summary
Fields declared in interface java.security.PublicKey
serialVersionUID -
Method Summary
Modifier and TypeMethodDescriptiondefault AlgorithmParameterSpecReturns the parameters associated with this key.getU()Get the u coordinate of the point.Methods declared in interface java.security.Key
getAlgorithm, getEncoded, getFormat
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Method Details
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getU
BigInteger getU()Get the u coordinate of the point.- Returns:
- the u-coordinate, represented using a BigInteger which may hold any value
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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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