com.itextpdf.kernel.crypto.securityhandler

Class PubSecHandlerUsingAes128

java.lang.Object

com.itextpdf.kernel.crypto.securityhandler.SecurityHandler

com.itextpdf.kernel.crypto.securityhandler.PubKeySecurityHandler

com.itextpdf.kernel.crypto.securityhandler.PubSecHandlerUsingAes128

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

PubSecHandlerUsingAes256

public class PubSecHandlerUsingAes128
extends PubKeySecurityHandler

See Also:

Serialized Form

Field Summary

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

extra, md5, mkey, nextObjectKey, nextObjectKeySize

Constructor Summary

Constructors

Constructor and Description
PubSecHandlerUsingAes128(PdfDictionary encryptionDictionary, Certificate[] certs, int[] permissions, boolean encryptMetadata, boolean embeddedFilesOnly)
PubSecHandlerUsingAes128(PdfDictionary encryptionDictionary, Key certificateKey, Certificate certificate, String certificateKeyProvider, IExternalDecryptionProcess externalDecryptionProcess, boolean encryptMetadata)

Method Summary

Modifier and Type	Method and Description
IDecryptor	getDecryptor()
protected String	getDigestAlgorithm()
OutputStreamEncryption	getEncryptionStream(OutputStream os)
protected void	initKey(byte[] globalKey, int keyLength)
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	setPubSecSpecificHandlerDicEntries(PdfDictionary encryptionDictionary, boolean encryptMetadata, boolean embeddedFilesOnly)

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

addAllRecipients, computeGlobalKey, computeGlobalKeyOnReading, createRecipientsArray, initKeyAndFillDictionary, initKeyAndReadDictionary

Methods inherited from class java.lang.Object

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

Constructor Detail

PubSecHandlerUsingAes128

public PubSecHandlerUsingAes128(PdfDictionary encryptionDictionary,
                                Certificate[] certs,
                                int[] permissions,
                                boolean encryptMetadata,
                                boolean embeddedFilesOnly)

PubSecHandlerUsingAes128

public PubSecHandlerUsingAes128(PdfDictionary encryptionDictionary,
                                Key certificateKey,
                                Certificate certificate,
                                String certificateKeyProvider,
                                IExternalDecryptionProcess externalDecryptionProcess,
                                boolean encryptMetadata)

Method Detail

getEncryptionStream

public OutputStreamEncryption getEncryptionStream(OutputStream os)

Specified by:

getEncryptionStream in class SecurityHandler

getDecryptor

public IDecryptor getDecryptor()

Specified by:

getDecryptor in class SecurityHandler

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

getDigestAlgorithm

protected String getDigestAlgorithm()

Specified by:

getDigestAlgorithm in class PubKeySecurityHandler

initKey

protected void initKey(byte[] globalKey,
                       int keyLength)

Specified by:

initKey in class PubKeySecurityHandler

setPubSecSpecificHandlerDicEntries

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

Specified by:

setPubSecSpecificHandlerDicEntries in class PubKeySecurityHandler