Package com.pd4ml.pdf.encryption

Class PublicKeySecurityHandler

java.lang.Object

com.pd4ml.pdf.encryption.SecurityHandler<PublicKeyProtectionPolicy>

com.pd4ml.pdf.encryption.PublicKeySecurityHandler

public final class PublicKeySecurityHandler
extends SecurityHandler<PublicKeyProtectionPolicy>

This class implements the public key security handler described in the PDF specification.

Author:

Benoit Guillon

See Also:

to see how to protect document with this security handler.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	FILTER	The filter name.

Constructor Summary

Constructors

Constructor	Description
PublicKeySecurityHandler()	Constructor.
PublicKeySecurityHandler(PublicKeyProtectionPolicy publicKeyProtectionPolicy)	Constructor used for encryption.

Method Summary

Modifier and Type	Method	Description
void	prepareDocumentForEncryption(PDEncryption dictionary, byte[] documentID)	Prepare the document for encryption.
void	prepareForDecryption(PDEncryption encryption, byte[] documentIDBytes, DecryptionMaterial decryptionMaterial)	Prepares everything to decrypt the document.

Methods inherited from class com.pd4ml.pdf.encryption.SecurityHandler

decryptBuffer, getCurrentAccessPermission, getEncryptionKey, getKeyLength, hasProtectionPolicy, isAES, isDecryptMetadata, setAES, setCurrentAccessPermission, setCustomSecureRandom, setEncryptionKey, setKeyLength, setParams

Methods inherited from class java.lang.Object

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

Field Detail

FILTER

public static final java.lang.String FILTER

The filter name.

See Also:

Constant Field Values

Constructor Detail

PublicKeySecurityHandler

public PublicKeySecurityHandler()

Constructor.

PublicKeySecurityHandler

public PublicKeySecurityHandler(PublicKeyProtectionPolicy publicKeyProtectionPolicy)

Constructor used for encryption.

Parameters:

publicKeyProtectionPolicy - The protection policy.

Method Detail

prepareForDecryption

public void prepareForDecryption(PDEncryption encryption,
                                 byte[] documentIDBytes,
                                 DecryptionMaterial decryptionMaterial)
                          throws java.io.IOException

Prepares everything to decrypt the document.

Specified by:

prepareForDecryption in class SecurityHandler<PublicKeyProtectionPolicy>

Parameters:

encryption - encryption dictionary

documentIDBytes - document id bytes (not used by this handler)

decryptionMaterial - Information used to decrypt the document.

Throws:

java.io.IOException - If there is an error accessing data. If verbose mode is enabled, the exception message will provide more details why the match wasn't successful.

prepareDocumentForEncryption

public void prepareDocumentForEncryption(PDEncryption dictionary,
                                         byte[] documentID)
                                  throws java.io.IOException

Prepare the document for encryption.

Specified by:

prepareDocumentForEncryption in class SecurityHandler<PublicKeyProtectionPolicy>

Parameters:

dictionary - encryption dictionary

documentID - document ID bytes

Throws:

java.io.IOException - If there is an error while encrypting.