Package com.itextpdf.kernel.crypto.securityhandler

Class StandardHandlerUsingAes128

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

com.itextpdf.kernel.crypto.securityhandler.StandardHandlerUsingAes128

       public class StandardHandlerUsingAes128 extends StandardHandlerUsingStandard128
      

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	Description
StandardHandlerUsingAes128(PdfDictionary encryptionDictionary, byte[] password, byte[] documentId, boolean encryptMetadata)
StandardHandlerUsingAes128(PdfDictionary encryptionDictionary, byte[] userPassword, byte[] ownerPassword, int permissions, boolean encryptMetadata, boolean embeddedFilesOnly, byte[] documentId)

Method Summary

Modifier and Type	Method	Description
IDecryptor	getDecryptor()	Gets decryptor object.
OutputStreamEncryption	getEncryptionStream(OutputStream os)	Gets a stream wrapper, responsible for encryption.
void	setHashKeyForNextObject(int objNumber, int objGeneration)	Note: For most of the supported security handlers algorithm to calculate encryption key for particular object is the same.
protected void	setSpecificHandlerDicEntries(PdfDictionary encryptionDictionary, boolean encryptMetadata, boolean embeddedFilesOnly)

Methods inherited from class com.itextpdf.kernel.crypto.securityhandler.StandardHandlerUsingStandard128

calculatePermissions, computeGlobalEncryptionKey, computeOwnerKey, computeUserKey, isValidPassword

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

computeUserPassword

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

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

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

getMkey, getNextObjectKey, initMd5MessageDigest

Methods inherited from class java.lang.Object

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

Constructor Details

StandardHandlerUsingAes128

             public StandardHandlerUsingAes128
             (PdfDictionary encryptionDictionary, byte[] userPassword, byte[] ownerPassword, int permissions, boolean encryptMetadata, boolean embeddedFilesOnly, byte[] documentId)
            

StandardHandlerUsingAes128

             public StandardHandlerUsingAes128
             (PdfDictionary encryptionDictionary, byte[] password, byte[] documentId, boolean encryptMetadata)
            

Method Details

getEncryptionStream

             public OutputStreamEncryption getEncryptionStream
             (OutputStream os)
            

Description copied from class: SecurityHandler

Gets a stream wrapper, responsible for encryption.

Overrides:

getEncryptionStream in class StandardHandlerUsingStandard40

Parameters:

os - OutputStream to be wrapped

Returns:

OutputStreamEncryption, responsible for encryption.

getDecryptor

             public IDecryptor getDecryptor()
            

Description copied from class: SecurityHandler

Gets decryptor object.

Overrides:

getDecryptor in class StandardHandlerUsingStandard40

Returns:

IDecryptor

setHashKeyForNextObject

             public void setHashKeyForNextObject
             (int objNumber, int objGeneration)
            

Description copied from class: SecurityHandler

Note: For most of the supported security handlers algorithm to calculate encryption key for particular object is the same.

Overrides:

setHashKeyForNextObject in class SecurityHandler

Parameters:

objNumber - number of particular object for encryption

objGeneration - generation of particular object for encryption

setSpecificHandlerDicEntries

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

Overrides:

setSpecificHandlerDicEntries in class StandardHandlerUsingStandard128