Interface XECPrivateKey
- All Superinterfaces:
- AsymmetricKey,- Destroyable,- Key,- PrivateKey,- Serializable,- XECKey
An interface for an elliptic curve private key as defined by RFC 7748.
 These keys are distinct from the keys represented by 
ECPrivateKey,
 and they are intended for use with algorithms based on RFC 7748 such as the
 XDH KeyAgreement algorithm.
 An XEC private key is an encoded scalar value as described in RFC 7748.
 The decoding procedure defined in this RFC includes an operation that forces
 certain bits of the key to either 1 or 0. This operation is known as
 "pruning" or "clamping" the private key. Arrays returned by this interface
 are unpruned, and implementations will need to prune the array before
 using it in any numerical operations.- Since:
- 11
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Field SummaryFields declared in interface java.security.PrivateKeyserialVersionUID
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Method SummaryModifier and TypeMethodDescriptiondefault AlgorithmParameterSpecReturns the parameters associated with this key.Optional<byte[]> Get the scalar value encoded as an unpruned byte array.Methods declared in interface javax.security.auth.Destroyabledestroy, isDestroyedMethods declared in interface java.security.KeygetAlgorithm, getEncoded, getFormat
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Method Details- 
getScalarOptional<byte[]> getScalar()Get the scalar value encoded as an unpruned byte array. A new copy of the array is returned each time this method is called.- Returns:
- the unpruned encoded scalar value, or an empty Optional if the scalar cannot be extracted (e.g. if the provider is a hardware token and the private key is not allowed to leave the crypto boundary).
 
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getParamsReturns 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 interface- AsymmetricKey
- Specified by:
- getParamsin interface- XECKey
- Implementation Requirements:
- The default implementation returns null.
- Returns:
- the associated parameters, may be null
 
 
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