Package org.opensaml.xmlsec.agreement.impl

Class AbstractDerivationKeyAgreementProcessor

java.lang.Object

org.opensaml.xmlsec.agreement.impl.AbstractKeyAgreementProcessor

org.opensaml.xmlsec.agreement.impl.AbstractDerivationKeyAgreementProcessor

All Implemented Interfaces:

KeyAgreementProcessor

Direct Known Subclasses:

DHWithExplicitKDFKeyAgreementProcessor, ECDHKeyAgreementProcessor

public abstract class AbstractDerivationKeyAgreementProcessor
extends AbstractKeyAgreementProcessor

Abstract base class for KeyAgreementProcessor implementations which do key derivation by means of a required KeyDerivation parameter.

Constructor Summary

Constructors

Constructor	Description
AbstractDerivationKeyAgreementProcessor()

Method Summary

Modifier and Type	Method	Description
protected SecretKey	deriveSecretKey(byte[] secret, String keyAlgorithm, KeyAgreementParameters parameters)	Derive a SecretKey from a given secret.

Methods inherited from class org.opensaml.xmlsec.agreement.impl.AbstractKeyAgreementProcessor

buildKeyAgreementCredential, execute, generateAgreementSecret, obtainPrivateCredential

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.opensaml.xmlsec.agreement.KeyAgreementProcessor

getAlgorithm

Constructor Details

AbstractDerivationKeyAgreementProcessor

public AbstractDerivationKeyAgreementProcessor()

Method Details

deriveSecretKey

@Nonnull
protected SecretKey deriveSecretKey(@Nonnull
 byte[] secret,
 @Nonnull
 String keyAlgorithm,
 @Nonnull
 KeyAgreementParameters parameters)
                             throws KeyAgreementException

Derive a SecretKey from a given secret.

Specified by:

deriveSecretKey in class AbstractKeyAgreementProcessor

Parameters:

secret - the input secret

keyAlgorithm - the JCA key algorithm for the derived key

parameters - the key agreement parameters

Returns:

the derived secret key

Throws:

KeyAgreementException - if key derivation operation does not complete successfully