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<A NAME="KeyFactory(java.security.KeyFactorySpi, java.security.Provider, java.lang.String)"><!-- --></A><H3>
KeyFactory</H3>
<PRE>
protected <B>KeyFactory</B>(<A HREF="../../java/security/KeyFactorySpi.html">KeyFactorySpi</A>&nbsp;keyFacSpi,
                     <A HREF="../../java/security/Provider.html">Provider</A>&nbsp;provider,
                     <A HREF="../../java/lang/String.html">String</A>&nbsp;algorithm)</PRE>
<DL>
<DD>Creates a KeyFactory object.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>keyFacSpi</CODE> - the delegate<DD><CODE>provider</CODE> - the provider<DD><CODE>algorithm</CODE> - the name of the algorithm
 to associate with this <tt>KeyFactory</tt></DL>
</DD>
</DL>

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<A NAME="getInstance(java.lang.String)"><!-- --></A><H3>
getInstance</H3>
<PRE>
public static <A HREF="../../java/security/KeyFactory.html">KeyFactory</A> <B>getInstance</B>(<A HREF="../../java/lang/String.html">String</A>&nbsp;algorithm)
                              throws <A HREF="../../java/security/NoSuchAlgorithmException.html">NoSuchAlgorithmException</A></PRE>
<DL>
<DD>Generates a KeyFactory object that implements the specified digest
 algorithm. If the default provider package
 provides an implementation of the requested digest algorithm,
 an instance of KeyFactory containing that implementation is returned.
 If the algorithm is not available in the default 
 package, other packages are searched.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>algorithm</CODE> - the name of the requested key algorithm. 
 See Appendix A in the <a href=
 "../../../guide/security/CryptoSpec.html#AppA">
 Java Cryptography Architecture API Specification &amp; Reference </a> 
 for information about standard algorithm names.<DT><B>Returns:</B><DD>a KeyFactory object for the specified algorithm.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/security/NoSuchAlgorithmException.html">NoSuchAlgorithmException</A></CODE> - if the requested algorithm is
 not available in the default provider package or any of the other
 provider packages that were searched.</DL>
</DD>
</DL>
<HR>

<A NAME="getInstance(java.lang.String, java.lang.String)"><!-- --></A><H3>
getInstance</H3>
<PRE>
public static <A HREF="../../java/security/KeyFactory.html">KeyFactory</A> <B>getInstance</B>(<A HREF="../../java/lang/String.html">String</A>&nbsp;algorithm,
                                     <A HREF="../../java/lang/String.html">String</A>&nbsp;provider)
                              throws <A HREF="../../java/security/NoSuchAlgorithmException.html">NoSuchAlgorithmException</A>,
                                     <A HREF="../../java/security/NoSuchProviderException.html">NoSuchProviderException</A></PRE>
<DL>
<DD>Generates a KeyFactory object for the specified algorithm from the
 specified provider.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>algorithm</CODE> - the name of the requested key algorithm. 
 See Appendix A in the <a href=
 "../../../guide/security/CryptoSpec.html#AppA">
 Java Cryptography Architecture API Specification &amp; Reference </a> 
 for information about standard algorithm names.<DD><CODE>provider</CODE> - the name of the provider.<DT><B>Returns:</B><DD>a KeyFactory object for the specified algorithm.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/security/NoSuchAlgorithmException.html">NoSuchAlgorithmException</A></CODE> - if the algorithm is
 not available from the specified provider.<DD><CODE><A HREF="../../java/security/NoSuchProviderException.html">NoSuchProviderException</A></CODE> - if the provider has not been 
 configured.<DT><B>See Also: </B><DD><A HREF="../../java/security/Provider.html"><CODE>Provider</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getProvider()"><!-- --></A><H3>
getProvider</H3>
<PRE>
public final <A HREF="../../java/security/Provider.html">Provider</A> <B>getProvider</B>()</PRE>
<DL>
<DD>Returns the provider of this key factory object.<DD><DL>
<DT><B>Returns:</B><DD>the provider of this key factory object</DL>
</DD>
</DL>
<HR>

<A NAME="getAlgorithm()"><!-- --></A><H3>
getAlgorithm</H3>
<PRE>
public final <A HREF="../../java/lang/String.html">String</A> <B>getAlgorithm</B>()</PRE>
<DL>
<DD>Gets the name of the algorithm 
 associated with this <tt>KeyFactory</tt>.<DD><DL>
<DT><B>Returns:</B><DD>the name of the algorithm associated with this
 <tt>KeyFactory</tt></DL>
</DD>
</DL>
<HR>

<A NAME="generatePublic(java.security.spec.KeySpec)"><!-- --></A><H3>
generatePublic</H3>
<PRE>
public final <A HREF="../../java/security/PublicKey.html">PublicKey</A> <B>generatePublic</B>(<A HREF="../../java/security/spec/KeySpec.html">KeySpec</A>&nbsp;keySpec)
                               throws <A HREF="../../java/security/spec/InvalidKeySpecException.html">InvalidKeySpecException</A></PRE>
<DL>
<DD>Generates a public key object from the provided key specification
 (key material).<DD><DL>
<DT><B>Parameters:</B><DD><CODE>keySpec</CODE> - the specification (key material) of the public key.<DT><B>Returns:</B><DD>the public key.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/security/spec/InvalidKeySpecException.html">InvalidKeySpecException</A></CODE> - if the given key specification
 is inappropriate for this key factory to produce a public key.</DL>
</DD>
</DL>
<HR>

<A NAME="generatePrivate(java.security.spec.KeySpec)"><!-- --></A><H3>
generatePrivate</H3>
<PRE>
public final <A HREF="../../java/security/PrivateKey.html">PrivateKey</A> <B>generatePrivate</B>(<A HREF="../../java/security/spec/KeySpec.html">KeySpec</A>&nbsp;keySpec)
                                 throws <A HREF="../../java/security/spec/InvalidKeySpecException.html">InvalidKeySpecException</A></PRE>
<DL>
<DD>Generates a private key object from the provided key specification
 (key material).<DD><DL>
<DT><B>Parameters:</B><DD><CODE>keySpec</CODE> - the specification (key material) of the private key.<DT><B>Returns:</B><DD>the private key.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/security/spec/InvalidKeySpecException.html">InvalidKeySpecException</A></CODE> - if the given key specification
 is inappropriate for this key factory to produce a private key.</DL>
</DD>
</DL>
<HR>

<A NAME="getKeySpec(java.security.Key, java.lang.Class)"><!-- --></A><H3>
getKeySpec</H3>
<PRE>
public final <A HREF="../../java/security/spec/KeySpec.html">KeySpec</A> <B>getKeySpec</B>(<A HREF="../../java/security/Key.html">Key</A>&nbsp;key,
                                <A HREF="../../java/lang/Class.html">Class</A>&nbsp;keySpec)
                         throws <A HREF="../../java/security/spec/InvalidKeySpecException.html">InvalidKeySpecException</A></PRE>
<DL>
<DD>Returns a specification (key material) of the given key object.
 <code>keySpec</code> identifies the specification class in which 
 the key material should be returned. It could, for example, be
 <code>DSAPublicKeySpec.class</code>, to indicate that the
 key material should be returned in an instance of the 
 <code>DSAPublicKeySpec</code> class.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key.<DD><CODE>keySpec</CODE> - the specification class in which 
 the key material should be returned.<DT><B>Returns:</B><DD>the underlying key specification (key material) in an instance
 of the requested specification class.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/security/spec/InvalidKeySpecException.html">InvalidKeySpecException</A></CODE> - if the requested key specification is
 inappropriate for the given key, or the given key cannot be processed
 (e.g., the given key has an unrecognized algorithm or format).</DL>
</DD>
</DL>
<HR>

<A NAME="translateKey(java.security.Key)"><!-- --></A><H3>
translateKey</H3>
<PRE>
public final <A HREF="../../java/security/Key.html">Key</A> <B>translateKey</B>(<A HREF="../../java/security/Key.html">Key</A>&nbsp;key)
                       throws <A HREF="../../java/security/InvalidKeyException.html">InvalidKeyException</A></PRE>
<DL>
<DD>Translates a key object, whose provider may be unknown or potentially
 untrusted, into a corresponding key object of this key factory.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key whose provider is unknown or untrusted.<DT><B>Returns:</B><DD>the translated key.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/security/InvalidKeyException.html">InvalidKeyException</A></CODE> - if the given key cannot be processed
 by this key factory.</DL>
</DD>
</DL>
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