Package org.bouncycastle.pqc.jcajce.provider.mceliece

Class McElieceKeyFactorySpi

java.lang.Object

java.security.KeyFactorySpi

org.bouncycastle.pqc.jcajce.provider.mceliece.McElieceKeyFactorySpi

All Implemented Interfaces:

AsymmetricKeyInfoConverter

public class McElieceKeyFactorySpi
extends KeyFactorySpi
implements AsymmetricKeyInfoConverter

This class is used to translate between McEliece keys and key specifications.

See Also:

• BCMcEliecePrivateKey
• BCMcEliecePublicKey

Field Summary

Fields

Modifier and Type	Field	Description
static final String	OID	The OID of the algorithm.

Constructor Summary

Constructors

Constructor	Description
McElieceKeyFactorySpi()

Method Summary

Modifier and Type	Method	Description
protected PrivateKey	engineGeneratePrivate(KeySpec keySpec)	Converts, if possible, a key specification into a BCMcEliecePrivateKey.
protected PublicKey	engineGeneratePublic(KeySpec keySpec)	Converts, if possible, a key specification into a BCMcEliecePublicKey.
protected KeySpec	engineGetKeySpec(Key key, Class tClass)
protected Key	engineTranslateKey(Key key)
PrivateKey	generatePrivate(PrivateKeyInfo pki)
PublicKey	generatePublic(SubjectPublicKeyInfo pki)
KeySpec	getKeySpec(Key key, Class keySpec)	Converts, if possible, a given key into a key specification.
Key	translateKey(Key key)	Translates a key into a form known by the FlexiProvider.

Methods inherited from class java.lang.Object

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

Field Details

OID

public static final String OID

The OID of the algorithm.

See Also:

• Constant Field Values

Constructor Details

McElieceKeyFactorySpi

public McElieceKeyFactorySpi()

Method Details

engineGeneratePublic

protected PublicKey engineGeneratePublic(KeySpec keySpec)
                                  throws InvalidKeySpecException

Converts, if possible, a key specification into a BCMcEliecePublicKey. X509EncodedKeySpec.

Specified by:

engineGeneratePublic in class KeyFactorySpi

Parameters:

keySpec - the key specification

Returns:

the McEliece public key

Throws:

InvalidKeySpecException - if the key specification is not supported.

engineGeneratePrivate

protected PrivateKey engineGeneratePrivate(KeySpec keySpec)
                                    throws InvalidKeySpecException

Converts, if possible, a key specification into a BCMcEliecePrivateKey.

Specified by:

engineGeneratePrivate in class KeyFactorySpi

Parameters:

keySpec - the key specification

Returns:

the McEliece private key

Throws:

InvalidKeySpecException - if the KeySpec is not supported.

getKeySpec

public KeySpec getKeySpec(Key key,
 Class keySpec)
                   throws InvalidKeySpecException

Converts, if possible, a given key into a key specification. Currently, the following key specifications are supported:

Parameters:

key - the key

keySpec - the key specification

Returns:

the specification of the McEliece key

Throws:

InvalidKeySpecException - if the key type or the key specification is not supported.

See Also:

• BCMcEliecePrivateKey
• BCMcEliecePublicKey

translateKey

public Key translateKey(Key key)
                 throws InvalidKeyException

Translates a key into a form known by the FlexiProvider. Currently, only the following "source" keys are supported: BCMcEliecePrivateKey, BCMcEliecePublicKey.

Parameters:

key - the key

Returns:

a key of a known key type

Throws:

InvalidKeyException - if the key type is not supported.

generatePublic

public PublicKey generatePublic(SubjectPublicKeyInfo pki)
                         throws IOException

Specified by:

generatePublic in interface AsymmetricKeyInfoConverter

Throws:

IOException

generatePrivate

public PrivateKey generatePrivate(PrivateKeyInfo pki)
                           throws IOException

Specified by:

generatePrivate in interface AsymmetricKeyInfoConverter

Throws:

IOException

engineGetKeySpec

protected KeySpec engineGetKeySpec(Key key,
 Class tClass)
                            throws InvalidKeySpecException

Specified by:

engineGetKeySpec in class KeyFactorySpi

Throws:

InvalidKeySpecException

engineTranslateKey

protected Key engineTranslateKey(Key key)
                          throws InvalidKeyException

Specified by:

engineTranslateKey in class KeyFactorySpi

Throws:

InvalidKeyException