Package com.itextpdf.kernel.crypto.securityhandler

Class StandardSecurityHandler

java.lang.Object

com.itextpdf.kernel.crypto.securityhandler.SecurityHandler

com.itextpdf.kernel.crypto.securityhandler.StandardSecurityHandler

Direct Known Subclasses:

StandardHandlerUsingAes256, StandardHandlerUsingStandard40

public abstract class StandardSecurityHandler
extends SecurityHandler

Field Summary

Fields

Modifier and Type	Field	Description
protected int	permissions
protected static int	PERMS_MASK_1_FOR_REVISION_2
protected static int	PERMS_MASK_1_FOR_REVISION_3_OR_GREATER
protected static int	PERMS_MASK_2
protected boolean	usedOwnerPassword

Fields inherited from class com.itextpdf.kernel.crypto.securityhandler.SecurityHandler

extra, md5, mkey, nextObjectKey, nextObjectKeySize

Constructor Summary

Constructors

Constructor	Description
StandardSecurityHandler()

Method Summary

Modifier and Type	Method	Description
protected static boolean	equalsArray(byte[] ar1, byte[] ar2, int size)
protected byte[]	generateOwnerPasswordIfNullOrEmpty(byte[] ownerPassword)
protected byte[]	getIsoBytes(PdfString string)	Gets bytes of String-value without considering encoding.
int	getPermissions()
boolean	isUsedOwnerPassword()
void	setPermissions(int permissions, PdfDictionary encryptionDictionary)	Updates encryption dictionary with the security permissions provided.
protected void	setStandardHandlerDicEntries(PdfDictionary encryptionDictionary, byte[] userKey, byte[] ownerKey)

Methods inherited from class com.itextpdf.kernel.crypto.securityhandler.SecurityHandler

getDecryptor, getEncryptionStream, getMkey, getNextObjectKey, initMd5MessageDigest, setHashKeyForNextObject

Methods inherited from class java.lang.Object

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

Field Detail

PERMS_MASK_1_FOR_REVISION_2

protected static final int PERMS_MASK_1_FOR_REVISION_2

See Also:

Constant Field Values

PERMS_MASK_1_FOR_REVISION_3_OR_GREATER

protected static final int PERMS_MASK_1_FOR_REVISION_3_OR_GREATER

See Also:

Constant Field Values

PERMS_MASK_2

protected static final int PERMS_MASK_2

See Also:

Constant Field Values

permissions

protected int permissions

usedOwnerPassword

protected boolean usedOwnerPassword

Constructor Detail

StandardSecurityHandler

public StandardSecurityHandler()

Method Detail

getPermissions

public int getPermissions()

setPermissions

public void setPermissions(int permissions,
                           PdfDictionary encryptionDictionary)

Updates encryption dictionary with the security permissions provided.

Parameters:

permissions - new permissions to set

encryptionDictionary - encryption dictionary to update

isUsedOwnerPassword

public boolean isUsedOwnerPassword()

setStandardHandlerDicEntries

protected void setStandardHandlerDicEntries(PdfDictionary encryptionDictionary,
                                            byte[] userKey,
                                            byte[] ownerKey)

generateOwnerPasswordIfNullOrEmpty

protected byte[] generateOwnerPasswordIfNullOrEmpty(byte[] ownerPassword)

getIsoBytes

protected byte[] getIsoBytes(PdfString string)

Gets bytes of String-value without considering encoding.

Parameters:

string - a PdfString to get bytes from it

Returns:

byte array

equalsArray

protected static boolean equalsArray(byte[] ar1,
                                     byte[] ar2,
                                     int size)