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

Direct Known Subclasses:

StandardHandlerUsingAes128

public class StandardHandlerUsingStandard128
extends StandardHandlerUsingStandard40

Field Summary

Fields inherited from class StandardHandlerUsingStandard40

arcfour, documentId, keyLength, metadataPad, pad

Fields inherited from class StandardSecurityHandler

permissions, PERMS_MASK_1_FOR_REVISION_2, PERMS_MASK_1_FOR_REVISION_3_OR_GREATER, PERMS_MASK_2, usedOwnerPassword

Fields inherited from class SecurityHandler

extra, md5, mkey, nextObjectKey, nextObjectKeySize

Constructor Summary

Constructors

Constructor	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	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 StandardHandlerUsingStandard40

computeUserPassword, getDecryptor, getEncryptionStream

Methods inherited from class StandardSecurityHandler

equalsArray, generateOwnerPasswordIfNullOrEmpty, getIsoBytes, getPermissions, isUsedOwnerPassword, setPermissions, setStandardHandlerDicEntries

Methods inherited from class SecurityHandler

getMkey, getNextObjectKey, initMd5MessageDigest, setHashKeyForNextObject

Methods inherited from class Object

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

Constructor Details

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 Details

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