keyfactoryspi.html

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<CODE>protected abstract &nbsp;<A HREF="../../java/security/Key.html">Key</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/security/KeyFactorySpi.html#engineTranslateKey(java.security.Key)">engineTranslateKey</A></B>(<A HREF="../../java/security/Key.html">Key</A>&nbsp;key)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Translates a key object, whose provider may be unknown or
 potentially untrusted, into a corresponding key object of this key
 factory.</TD>
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<A NAME="KeyFactorySpi()"><!-- --></A><H3>
KeyFactorySpi</H3>
<PRE>
public <B>KeyFactorySpi</B>()</PRE>
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<A NAME="engineGeneratePublic(java.security.spec.KeySpec)"><!-- --></A><H3>
engineGeneratePublic</H3>
<PRE>
protected abstract <A HREF="../../java/security/PublicKey.html">PublicKey</A> <B>engineGeneratePublic</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>
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<A NAME="engineGeneratePrivate(java.security.spec.KeySpec)"><!-- --></A><H3>
engineGeneratePrivate</H3>
<PRE>
protected abstract <A HREF="../../java/security/PrivateKey.html">PrivateKey</A> <B>engineGeneratePrivate</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>
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<A NAME="engineGetKeySpec(java.security.Key, java.lang.Class)"><!-- --></A><H3>
engineGetKeySpec</H3>
<PRE>
protected abstract <A HREF="../../java/security/spec/KeySpec.html">KeySpec</A> <B>engineGetKeySpec</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 dealt with
 (e.g., the given key has an unrecognized format).</DL>
</DD>
</DL>
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<A NAME="engineTranslateKey(java.security.Key)"><!-- --></A><H3>
engineTranslateKey</H3>
<PRE>
protected abstract <A HREF="../../java/security/Key.html">Key</A> <B>engineTranslateKey</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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