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SecurityHandler (PDFBox-0.7.3 API)
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org.pdfbox.pdmodel.encryption</FONT>
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Class SecurityHandler</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>org.pdfbox.pdmodel.encryption.SecurityHandler</B>
</PRE>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/pdfbox/pdmodel/encryption/PublicKeySecurityHandler.html" title="class in org.pdfbox.pdmodel.encryption">PublicKeySecurityHandler</A>, <A HREF="../../../../org/pdfbox/pdmodel/encryption/StandardSecurityHandler.html" title="class in org.pdfbox.pdmodel.encryption">StandardSecurityHandler</A></DD>
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<DT>public abstract class <B>SecurityHandler</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL>
<P>
This class represents a security handler as described in the PDF specifications.
A security handler is responsible of documents protection.
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>$Revision: 1.4 $</DD>
<DT><B>Author:</B></DT>
<DD><a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>, Benoit Guillon (benoit.guillon@snv.jussieu.fr)</DD>
</DL>
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<!-- ======== NESTED CLASS SUMMARY ======== -->
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected <A HREF="../../../../org/pdfbox/pdmodel/encryption/AccessPermission.html" title="class in org.pdfbox.pdmodel.encryption">AccessPermission</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#currentAccessPermission">currentAccessPermission</A></B></CODE>
<BR>
The access permission granted to the current user for the document. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected <A HREF="../../../../org/pdfbox/pdmodel/PDDocument.html" title="class in org.pdfbox.pdmodel">PDDocument</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#document">document</A></B></CODE>
<BR>
The document whose security is handled by this security handler.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#encryptionKey">encryptionKey</A></B></CODE>
<BR>
The encryption key that will used to encrypt / decrypt.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#keyLength">keyLength</A></B></CODE>
<BR>
The length of the secret key used to encrypt the document.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected <A HREF="../../../../org/pdfbox/encryption/ARCFour.html" title="class in org.pdfbox.encryption">ARCFour</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#rc4">rc4</A></B></CODE>
<BR>
The RC4 implementation used for cryptographic functions.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#version">version</A></B></CODE>
<BR>
The value of V field of the Encryption dictionary.</TD>
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<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#SecurityHandler()">SecurityHandler</A></B>()</CODE>
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<CODE>abstract void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#decryptDocument(org.pdfbox.pdmodel.PDDocument, org.pdfbox.pdmodel.encryption.DecryptionMaterial)">decryptDocument</A></B>(<A HREF="../../../../org/pdfbox/pdmodel/PDDocument.html" title="class in org.pdfbox.pdmodel">PDDocument</A> doc,
<A HREF="../../../../org/pdfbox/pdmodel/encryption/DecryptionMaterial.html" title="class in org.pdfbox.pdmodel.encryption">DecryptionMaterial</A> mat)</CODE>
<BR>
Prepare the document for decryption.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#decryptStream(org.pdfbox.cos.COSStream, long, long)">decryptStream</A></B>(<A HREF="../../../../org/pdfbox/cos/COSStream.html" title="class in org.pdfbox.cos">COSStream</A> stream,
long objNum,
long genNum)</CODE>
<BR>
This will decrypt a stream.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#decryptString(org.pdfbox.cos.COSString, long, long)">decryptString</A></B>(<A HREF="../../../../org/pdfbox/cos/COSString.html" title="class in org.pdfbox.cos">COSString</A> string,
long objNum,
long genNum)</CODE>
<BR>
This will decrypt a string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#encryptData(long, long, java.io.InputStream, java.io.OutputStream)">encryptData</A></B>(long objectNumber,
long genNumber,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/InputStream.html" title="class or interface in java.io">InputStream</A> data,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/OutputStream.html" title="class or interface in java.io">OutputStream</A> output)</CODE>
<BR>
Encrypt a set of data.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../org/pdfbox/pdmodel/encryption/AccessPermission.html" title="class in org.pdfbox.pdmodel.encryption">AccessPermission</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#getCurrentAccessPermission()">getCurrentAccessPermission</A></B>()</CODE>
<BR>
Returns the access permissions that were computed during document decryption.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#getKeyLength()">getKeyLength</A></B>()</CODE>
<BR>
Getter of the property <tt>keyLength</tt>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>abstract void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#prepareDocumentForEncryption(org.pdfbox.pdmodel.PDDocument)">prepareDocumentForEncryption</A></B>(<A HREF="../../../../org/pdfbox/pdmodel/PDDocument.html" title="class in org.pdfbox.pdmodel">PDDocument</A> doc)</CODE>
<BR>
Prepare the document for encryption.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#proceedDecryption()">proceedDecryption</A></B>()</CODE>
<BR>
This method must be called by an implementation of this class to really proceed
to decryption.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/pdfbox/pdmodel/encryption/SecurityHandler.html#setKeyLength(int)">setKeyLength</A></B>(int keyLen)</CODE>
<BR>
Setter of the property <tt>keyLength</tt>.</TD>
</TR>
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<TD><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TD>
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</TR>
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<P>
<!-- ============ FIELD DETAIL =========== -->
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<A NAME="version"><!-- --></A><H3>
version</H3>
<PRE>
protected int <B>version</B></PRE>
<DL>
<DD>The value of V field of the Encryption dictionary.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="keyLength"><!-- --></A><H3>
keyLength</H3>
<PRE>
protected int <B>keyLength</B></PRE>
<DL>
<DD>The length of the secret key used to encrypt the document.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="encryptionKey"><!-- --></A><H3>
encryptionKey</H3>
<PRE>
protected byte[] <B>encryptionKey</B></PRE>
<DL>
<DD>The encryption key that will used to encrypt / decrypt.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="document"><!-- --></A><H3>
document</H3>
<PRE>
protected <A HREF="../../../../org/pdfbox/pdmodel/PDDocument.html" title="class in org.pdfbox.pdmodel">PDDocument</A> <B>document</B></PRE>
<DL>
<DD>The document whose security is handled by this security handler.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="rc4"><!-- --></A><H3>
rc4</H3>
<PRE>
protected <A HREF="../../../../org/pdfbox/encryption/ARCFour.html" title="class in org.pdfbox.encryption">ARCFour</A> <B>rc4</B></PRE>
<DL>
<DD>The RC4 implementation used for cryptographic functions.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="currentAccessPermission"><!-- --></A><H3>
currentAccessPermission</H3>
<PRE>
protected <A HREF="../../../../org/pdfbox/pdmodel/encryption/AccessPermission.html" title="class in org.pdfbox.pdmodel.encryption">AccessPermission</A> <B>currentAccessPermission</B></PRE>
<DL>
<DD>The access permission granted to the current user for the document. These
permissions are computed during decryption and are in read only mode.
<P>
<DL>
</DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="SecurityHandler()"><!-- --></A><H3>
SecurityHandler</H3>
<PRE>
public <B>SecurityHandler</B>()</PRE>
<DL>
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<B>Method Detail</B></FONT></TD>
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<A NAME="prepareDocumentForEncryption(org.pdfbox.pdmodel.PDDocument)"><!-- --></A><H3>
prepareDocumentForEncryption</H3>
<PRE>
public abstract void <B>prepareDocumentForEncryption</B>(<A HREF="../../../../org/pdfbox/pdmodel/PDDocument.html" title="class in org.pdfbox.pdmodel">PDDocument</A> doc)
throws <A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A>,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Prepare the document for encryption.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>doc</CODE> - The document that will be encrypted.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A></CODE> - If there is an error while preparing.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - If there is an error with the document.</DL>
</DD>
</DL>
<HR>
<A NAME="decryptDocument(org.pdfbox.pdmodel.PDDocument, org.pdfbox.pdmodel.encryption.DecryptionMaterial)"><!-- --></A><H3>
decryptDocument</H3>
<PRE>
public abstract void <B>decryptDocument</B>(<A HREF="../../../../org/pdfbox/pdmodel/PDDocument.html" title="class in org.pdfbox.pdmodel">PDDocument</A> doc,
<A HREF="../../../../org/pdfbox/pdmodel/encryption/DecryptionMaterial.html" title="class in org.pdfbox.pdmodel.encryption">DecryptionMaterial</A> mat)
throws <A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A>,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Prepare the document for decryption.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>doc</CODE> - The document to decrypt.<DD><CODE>mat</CODE> - Information required to decrypt the document.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A></CODE> - If there is an error while preparing.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - If there is an error with the document.</DL>
</DD>
</DL>
<HR>
<A NAME="proceedDecryption()"><!-- --></A><H3>
proceedDecryption</H3>
<PRE>
protected void <B>proceedDecryption</B>()
throws <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A>,
<A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A></PRE>
<DL>
<DD>This method must be called by an implementation of this class to really proceed
to decryption.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - If there is an error in the decryption.
<DD><CODE><A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A></CODE> - If there is an error in the decryption.</DL>
</DD>
</DL>
<HR>
<A NAME="encryptData(long, long, java.io.InputStream, java.io.OutputStream)"><!-- --></A><H3>
encryptData</H3>
<PRE>
public void <B>encryptData</B>(long objectNumber,
long genNumber,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/InputStream.html" title="class or interface in java.io">InputStream</A> data,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/OutputStream.html" title="class or interface in java.io">OutputStream</A> output)
throws <A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A>,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Encrypt a set of data.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>objectNumber</CODE> - The data object number.<DD><CODE>genNumber</CODE> - The data generation number.<DD><CODE>data</CODE> - The data to encrypt.<DD><CODE>output</CODE> - The output to write the encrypted data to.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A></CODE> - If there is an error during the encryption.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - If there is an error reading the data.</DL>
</DD>
</DL>
<HR>
<A NAME="decryptStream(org.pdfbox.cos.COSStream, long, long)"><!-- --></A><H3>
decryptStream</H3>
<PRE>
public void <B>decryptStream</B>(<A HREF="../../../../org/pdfbox/cos/COSStream.html" title="class in org.pdfbox.cos">COSStream</A> stream,
long objNum,
long genNum)
throws <A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A>,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>This will decrypt a stream.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>stream</CODE> - The stream to decrypt.<DD><CODE>objNum</CODE> - The object number.<DD><CODE>genNum</CODE> - The object generation number.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A></CODE> - If there is an error getting the stream.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - If there is an error getting the stream data.</DL>
</DD>
</DL>
<HR>
<A NAME="decryptString(org.pdfbox.cos.COSString, long, long)"><!-- --></A><H3>
decryptString</H3>
<PRE>
public void <B>decryptString</B>(<A HREF="../../../../org/pdfbox/cos/COSString.html" title="class in org.pdfbox.cos">COSString</A> string,
long objNum,
long genNum)
throws <A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A>,
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>This will decrypt a string.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>string</CODE> - the string to decrypt.<DD><CODE>objNum</CODE> - The object number.<DD><CODE>genNum</CODE> - The object generation number.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/pdfbox/exceptions/CryptographyException.html" title="class in org.pdfbox.exceptions">CryptographyException</A></CODE> - If an error occurs during decryption.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - If an error occurs writing the new string.</DL>
</DD>
</DL>
<HR>
<A NAME="getKeyLength()"><!-- --></A><H3>
getKeyLength</H3>
<PRE>
public int <B>getKeyLength</B>()</PRE>
<DL>
<DD>Getter of the property <tt>keyLength</tt>.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>Returns the keyLength.</DL>
</DD>
</DL>
<HR>
<A NAME="setKeyLength(int)"><!-- --></A><H3>
setKeyLength</H3>
<PRE>
public void <B>setKeyLength</B>(int keyLen)</PRE>
<DL>
<DD>Setter of the property <tt>keyLength</tt>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>keyLen</CODE> - The keyLength to set.</DL>
</DD>
</DL>
<HR>
<A NAME="getCurrentAccessPermission()"><!-- --></A><H3>
getCurrentAccessPermission</H3>
<PRE>
public <A HREF="../../../../org/pdfbox/pdmodel/encryption/AccessPermission.html" title="class in org.pdfbox.pdmodel.encryption">AccessPermission</A> <B>getCurrentAccessPermission</B>()</PRE>
<DL>
<DD>Returns the access permissions that were computed during document decryption.
The returned object is in read only mode.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the access permissions or null if the document was not decrypted.</DL>
</DD>
</DL>
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