com.itextpdf.kernel.crypto.securityhandler

Class PubKeySecurityHandler

java.lang.Object

com.itextpdf.kernel.crypto.securityhandler.SecurityHandler

com.itextpdf.kernel.crypto.securityhandler.PubKeySecurityHandler

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

PubSecHandlerUsingAes128, PubSecHandlerUsingStandard40

public abstract class PubKeySecurityHandler
extends SecurityHandler

Author:

Aiken Sam (aikensam@ieee.org)

See Also:

Serialized Form

Field Summary

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

extra, md5, mkey, nextObjectKey, nextObjectKeySize

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PubKeySecurityHandler()

Method Summary

Modifier and Type	Method and Description
protected void	addAllRecipients(Certificate[] certs, int[] permissions)
protected byte[]	computeGlobalKey(String messageDigestAlgorithm, boolean encryptMetadata)
protected static byte[]	computeGlobalKeyOnReading(PdfDictionary encryptionDictionary, PrivateKey certificateKey, Certificate certificate, String certificateKeyProvider, IExternalDecryptionProcess externalDecryptionProcess, boolean encryptMetadata, String digestAlgorithm)
protected PdfArray	createRecipientsArray()
protected abstract String	getDigestAlgorithm()
protected abstract void	initKey(byte[] globalKey, int keyLength)
protected void	initKeyAndFillDictionary(PdfDictionary encryptionDictionary, Certificate[] certs, int[] permissions, boolean encryptMetadata, boolean embeddedFilesOnly)
protected void	initKeyAndReadDictionary(PdfDictionary encryptionDictionary, Key certificateKey, Certificate certificate, String certificateKeyProvider, IExternalDecryptionProcess externalDecryptionProcess, boolean encryptMetadata)
protected abstract void	setPubSecSpecificHandlerDicEntries(PdfDictionary encryptionDictionary, boolean encryptMetadata, boolean embeddedFilesOnly)

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

getDecryptor, getEncryptionStream, setHashKeyForNextObject

Methods inherited from class java.lang.Object

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

Constructor Detail

PubKeySecurityHandler

protected PubKeySecurityHandler()

Method Detail

computeGlobalKey

protected byte[] computeGlobalKey(String messageDigestAlgorithm,
                                  boolean encryptMetadata)

computeGlobalKeyOnReading

protected static byte[] computeGlobalKeyOnReading(PdfDictionary encryptionDictionary,
                                                  PrivateKey certificateKey,
                                                  Certificate certificate,
                                                  String certificateKeyProvider,
                                                  IExternalDecryptionProcess externalDecryptionProcess,
                                                  boolean encryptMetadata,
                                                  String digestAlgorithm)

addAllRecipients

protected void addAllRecipients(Certificate[] certs,
                                int[] permissions)

createRecipientsArray

protected PdfArray createRecipientsArray()

setPubSecSpecificHandlerDicEntries

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

getDigestAlgorithm

protected abstract String getDigestAlgorithm()

initKey

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

initKeyAndFillDictionary

protected void initKeyAndFillDictionary(PdfDictionary encryptionDictionary,
                                        Certificate[] certs,
                                        int[] permissions,
                                        boolean encryptMetadata,
                                        boolean embeddedFilesOnly)

initKeyAndReadDictionary

protected void initKeyAndReadDictionary(PdfDictionary encryptionDictionary,
                                        Key certificateKey,
                                        Certificate certificate,
                                        String certificateKeyProvider,
                                        IExternalDecryptionProcess externalDecryptionProcess,
                                        boolean encryptMetadata)