com.itextpdf.kernel.crypto.securityhandler

Class StandardHandlerUsingStandard128

java.lang.Object

com.itextpdf.kernel.crypto.securityhandler.SecurityHandler

com.itextpdf.kernel.crypto.securityhandler.StandardSecurityHandler

com.itextpdf.kernel.crypto.securityhandler.StandardHandlerUsingStandard40

com.itextpdf.kernel.crypto.securityhandler.StandardHandlerUsingStandard128

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

StandardHandlerUsingAes128

public class StandardHandlerUsingStandard128
extends StandardHandlerUsingStandard40

See Also:

Serialized Form

Field Summary

Fields inherited from class com.itextpdf.kernel.crypto.securityhandler.StandardHandlerUsingStandard40

arcfour, documentId, keyLength, metadataPad, pad

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

permissions, PERMS_MASK_1_FOR_REVISION_2, PERMS_MASK_1_FOR_REVISION_3_OR_GREATER, PERMS_MASK_2, usedOwnerPassword

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

extra, md5, mkey, nextObjectKey, nextObjectKeySize

Constructor Summary

Constructors

Constructor and Description
StandardHandlerUsingStandard128(PdfDictionary encryptionDictionary, byte[] password, byte[] documentId, boolean encryptMetadata)
StandardHandlerUsingStandard128(PdfDictionary encryptionDictionary, byte[] userPassword, byte[] ownerPassword, int permissions, boolean encryptMetadata, boolean embeddedFilesOnly, byte[] documentId)

Method Summary

Modifier and Type	Method and Description
protected void	calculatePermissions(int permissions)
protected void	computeGlobalEncryptionKey(byte[] userPad, byte[] ownerKey, boolean encryptMetadata)
protected byte[]	computeOwnerKey(byte[] userPad, byte[] ownerPad)
protected byte[]	computeUserKey()
protected boolean	isValidPassword(byte[] uValue, byte[] userKey)
protected void	setSpecificHandlerDicEntries(PdfDictionary encryptionDictionary, boolean encryptMetadata, boolean embeddedFilesOnly)

Methods inherited from class com.itextpdf.kernel.crypto.securityhandler.StandardHandlerUsingStandard40

computeUserPassword, getDecryptor, getEncryptionStream

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

equalsArray, generateOwnerPasswordIfNullOrEmpty, getIsoBytes, getPermissions, isUsedOwnerPassword, setStandardHandlerDicEntries

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

setHashKeyForNextObject

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardHandlerUsingStandard128

public StandardHandlerUsingStandard128(PdfDictionary encryptionDictionary,
                                       byte[] userPassword,
                                       byte[] ownerPassword,
                                       int permissions,
                                       boolean encryptMetadata,
                                       boolean embeddedFilesOnly,
                                       byte[] documentId)

StandardHandlerUsingStandard128

public StandardHandlerUsingStandard128(PdfDictionary encryptionDictionary,
                                       byte[] password,
                                       byte[] documentId,
                                       boolean encryptMetadata)

Method Detail

calculatePermissions

protected void calculatePermissions(int permissions)

Overrides:

calculatePermissions in class StandardHandlerUsingStandard40

computeOwnerKey

protected byte[] computeOwnerKey(byte[] userPad,
                                 byte[] ownerPad)

Overrides:

computeOwnerKey in class StandardHandlerUsingStandard40

computeGlobalEncryptionKey

protected void computeGlobalEncryptionKey(byte[] userPad,
                                          byte[] ownerKey,
                                          boolean encryptMetadata)

Overrides:

computeGlobalEncryptionKey in class StandardHandlerUsingStandard40

computeUserKey

protected byte[] computeUserKey()

Overrides:

computeUserKey in class StandardHandlerUsingStandard40

setSpecificHandlerDicEntries

protected void setSpecificHandlerDicEntries(PdfDictionary encryptionDictionary,
                                            boolean encryptMetadata,
                                            boolean embeddedFilesOnly)

Overrides:

setSpecificHandlerDicEntries in class StandardHandlerUsingStandard40

isValidPassword

protected boolean isValidPassword(byte[] uValue,
                                  byte[] userKey)

Overrides:

isValidPassword in class StandardHandlerUsingStandard40