com.tencent.kona.sun.security.ec

Class ECKeyFactory

java.lang.Object

java.security.KeyFactorySpi

com.tencent.kona.sun.security.ec.ECKeyFactory

public final class ECKeyFactory
extends java.security.KeyFactorySpi

KeyFactory for EC keys. Keys must be instances of PublicKey or PrivateKey and getAlgorithm() must return "EC". For such keys, it supports conversion between the following: For public keys: . PublicKey with an X.509 encoding . ECPublicKey . ECPublicKeySpec . X509EncodedKeySpec For private keys: . PrivateKey with a PKCS#8 encoding . ECPrivateKey . ECPrivateKeySpec . PKCS8EncodedKeySpec

Since:

1.6

Constructor Summary

Constructors

Constructor and Description
ECKeyFactory()

Method Summary

Modifier and Type	Method and Description
protected java.security.PrivateKey	engineGeneratePrivate(java.security.spec.KeySpec keySpec)
protected java.security.PublicKey	engineGeneratePublic(java.security.spec.KeySpec keySpec)
protected <T extends java.security.spec.KeySpec> T	engineGetKeySpec(java.security.Key key, java.lang.Class<T> keySpec)
protected java.security.Key	engineTranslateKey(java.security.Key key) Translate an EC key into a Sun EC key.
static java.security.interfaces.ECKey	toECKey(java.security.Key key) Static method to convert Key into a usable instance of ECPublicKey or ECPrivateKey.

Methods inherited from class java.lang.Object

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

Constructor Detail

ECKeyFactory

public ECKeyFactory()

Method Detail

toECKey

public static java.security.interfaces.ECKey toECKey(java.security.Key key)
                                              throws java.security.InvalidKeyException

Static method to convert Key into a usable instance of ECPublicKey or ECPrivateKey. Check the key and convert it to a Sun key if necessary. If the key is not an EC key or cannot be used, throw an InvalidKeyException. The difference between this method and engineTranslateKey() is that we do not convert keys of other providers that are already an instance of ECPublicKey or ECPrivateKey. To be used by future Java ECDSA and ECDH implementations.

Throws:

java.security.InvalidKeyException

engineTranslateKey

protected java.security.Key engineTranslateKey(java.security.Key key)
                                        throws java.security.InvalidKeyException

Translate an EC key into a Sun EC key. If conversion is not possible, throw an InvalidKeyException. See also JCA doc.

Specified by:

engineTranslateKey in class java.security.KeyFactorySpi

Throws:

java.security.InvalidKeyException

engineGeneratePublic

protected java.security.PublicKey engineGeneratePublic(java.security.spec.KeySpec keySpec)
                                                throws java.security.spec.InvalidKeySpecException

Specified by:

engineGeneratePublic in class java.security.KeyFactorySpi

Throws:

java.security.spec.InvalidKeySpecException

engineGeneratePrivate

protected java.security.PrivateKey engineGeneratePrivate(java.security.spec.KeySpec keySpec)
                                                  throws java.security.spec.InvalidKeySpecException

Specified by:

engineGeneratePrivate in class java.security.KeyFactorySpi

Throws:

java.security.spec.InvalidKeySpecException

engineGetKeySpec

protected <T extends java.security.spec.KeySpec> T engineGetKeySpec(java.security.Key key,
                                                                    java.lang.Class<T> keySpec)
                                                             throws java.security.spec.InvalidKeySpecException

Specified by:

engineGetKeySpec in class java.security.KeyFactorySpi

Throws:

java.security.spec.InvalidKeySpecException