Bouncy Castle PKIX, CMS, EAC, TSP, PKCS, OCSP, CMP, and CRMF APIs 1.77 · org.bouncycastle.cms.jcajce.JceCMSKEMKeyUnwrapper

Field Summary

Modifier and Type	Field and Description
private Map<K, V>	extraMappings
private JcaJceExtHelper	helper
private final int	kekLength
private PrivateKey	privateKey
private final AlgorithmIdentifier	symWrapAlgorithm

Constructor Summary

Access	Constructor and Description
public	JceCMSKEMKeyUnwrapper(AlgorithmIdentifier symWrapAlg, PrivateKey privateKey)

Method Summary

Modifier and Type	Method and Description
public GenericKey	generateUnwrappedKey(AlgorithmIdentifier encryptionKeyAlgorithm, byte[] encryptedKey) Implements org.bouncycastle.operator.KeyUnwrapper.generateUnwrappedKey.
public int	getKekLength()
public JceCMSKEMKeyUnwrapper	Returns: the current Wrapper. setAlgorithmMapping(ASN1ObjectIdentifier OID of algorithm in recipient. algorithm, String JCE algorithm name to use. algorithmName) Internally algorithm ids are converted into cipher names using a lookup table.
public JceCMSKEMKeyUnwrapper	setProvider(Provider provider)
public JceCMSKEMKeyUnwrapper	setProvider(String providerName)

Inherited from org.bouncycastle.operator.AsymmetricKeyUnwrapper:: getAlgorithmIdentifier

Field Detail

extraMappings	back to summary
private Map<K, V> extraMappings

helper	back to summary
private JcaJceExtHelper helper

kekLength	back to summary
private final int kekLength

privateKey	back to summary
private PrivateKey privateKey

symWrapAlgorithm	back to summary
private final AlgorithmIdentifier symWrapAlgorithm

Constructor Detail

JceCMSKEMKeyUnwrapper	back to summary
public JceCMSKEMKeyUnwrapper(AlgorithmIdentifier symWrapAlg, PrivateKey privateKey)

Method Detail

generateUnwrappedKey	back to summary
public GenericKey generateUnwrappedKey(AlgorithmIdentifier encryptionKeyAlgorithm, byte[] encryptedKey) throws OperatorException Implements org.bouncycastle.operator.KeyUnwrapper.generateUnwrappedKey.

getKekLength	back to summary
public int getKekLength()

setAlgorithmMapping	back to summary
public JceCMSKEMKeyUnwrapper setAlgorithmMapping(ASN1ObjectIdentifier algorithm, 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:ASN1ObjectIdentifier OID of algorithm in recipient. algorithmName:String JCE algorithm name to use. Returns:JceCMSKEMKeyUnwrapper the current Wrapper.

setAlgorithmMapping

back to summary

public JceCMSKEMKeyUnwrapper setAlgorithmMapping(ASN1ObjectIdentifier algorithm, 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:ASN1ObjectIdentifier: OID of algorithm in recipient.
algorithmName:String: JCE algorithm name to use.

Returns:JceCMSKEMKeyUnwrapper

the current Wrapper.

setProvider	back to summary
public JceCMSKEMKeyUnwrapper setProvider(Provider provider)