Bouncy Castle Cryptography Library 1.60

org.bouncycastle.operator.jcajce
Class JceAsymmetricKeyUnwrapper

java.lang.Object
  |
  +--org.bouncycastle.operator.AsymmetricKeyUnwrapper
        |
        +--org.bouncycastle.operator.jcajce.JceAsymmetricKeyUnwrapper
All Implemented Interfaces:
KeyUnwrapper

public class JceAsymmetricKeyUnwrapper
extends AsymmetricKeyUnwrapper


Constructor Summary
JceAsymmetricKeyUnwrapper(org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithmIdentifier, java.security.PrivateKey privKey)
           
 
Method Summary
 GenericKey generateUnwrappedKey(org.bouncycastle.asn1.x509.AlgorithmIdentifier encryptedKeyAlgorithm, byte[] encryptedKey)
           
 JceAsymmetricKeyUnwrapper setAlgorithmMapping(org.bouncycastle.asn1.ASN1ObjectIdentifier algorithm, java.lang.String algorithmName)
          Internally algorithm ids are converted into cipher names using a lookup table.
 JceAsymmetricKeyUnwrapper setMustProduceEncodableUnwrappedKey(boolean unwrappedKeyMustBeEncodable)
          Flag that unwrapping must produce a key that will return a meaningful value from a call to Key.getEncoded().
 JceAsymmetricKeyUnwrapper setProvider(java.security.Provider provider)
           
 JceAsymmetricKeyUnwrapper setProvider(java.lang.String providerName)
           
 
Methods inherited from class org.bouncycastle.operator.AsymmetricKeyUnwrapper
getAlgorithmIdentifier
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JceAsymmetricKeyUnwrapper

public JceAsymmetricKeyUnwrapper(org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithmIdentifier,
                                 java.security.PrivateKey privKey)
Method Detail

setProvider

public JceAsymmetricKeyUnwrapper setProvider(java.security.Provider provider)

setProvider

public JceAsymmetricKeyUnwrapper setProvider(java.lang.String providerName)

setMustProduceEncodableUnwrappedKey

public JceAsymmetricKeyUnwrapper setMustProduceEncodableUnwrappedKey(boolean unwrappedKeyMustBeEncodable)
Flag that unwrapping must produce a key that will return a meaningful value from a call to Key.getEncoded(). This is important if you are using a HSM for unwrapping and using a software based provider for with the unwrapped key. Default value: false.
Parameters:
unwrappedKeyMustBeEncodable - true if getEncoded() should return key bytes, false if not necessary.
Returns:
this recipient.

setAlgorithmMapping

public JceAsymmetricKeyUnwrapper setAlgorithmMapping(org.bouncycastle.asn1.ASN1ObjectIdentifier algorithm,
                                                     java.lang.String algorithmName)
Internally algorithm ids are converted into cipher names using a lookup table. For some providers the standard lookup table won't work. Use this method to establish a specific mapping from an algorithm identifier to a specific algorithm.

For example: unwrapper.setAlgorithmMapping(PKCSObjectIdentifiers.rsaEncryption, "RSA");

Parameters:
algorithm - OID of algorithm in recipient.
algorithmName - JCE algorithm name to use.
Returns:
the current Unwrapper.

generateUnwrappedKey

public GenericKey generateUnwrappedKey(org.bouncycastle.asn1.x509.AlgorithmIdentifier encryptedKeyAlgorithm,
                                       byte[] encryptedKey)
                                throws OperatorException

Bouncy Castle Cryptography Library 1.60