multivalent.std.adaptor.pdf
Class SecurityHandlerPublicKey

java.lang.Object
  multivalent.std.adaptor.pdf.SecurityHandler
      multivalent.std.adaptor.pdf.SecurityHandlerPublicKey

All Implemented Interfaces:

java.lang.Cloneable

public class SecurityHandlerPublicKey

extends SecurityHandler

NOT IMPLEMENTED. Public Key encryption, as defined in Adobe's PDF Reference.

Version:

$Revision: 1.2 $ $Date: 2003/08/17 08:40:57 $

Field Summary

Fields inherited from class multivalent.std.adaptor.pdf.SecurityHandler

IDENTITY

Constructor Summary

SecurityHandlerPublicKey(Dict edict, COSSource coss)

SecurityHandlerPublicKey(java.lang.StringBuffer id0, int R, int P, int Length, java.lang.String userpassword, java.lang.String ownerpassword)
Construct a Standard encryption filter with given parameters and passwords.

Method Summary

boolean	authOwner(java.lang.String owner)
boolean	authUser(java.lang.String user)
byte[]	computeKey(java.lang.String password)
byte[]	decrypt(byte[] data, int off, int len) Decrypts stream data of object objnum with generation gennum.
byte[]	encrypt(byte[] data, int off, int len) Encrypts data of object objnum with generation gennum.
byte[]	getKey() CryptFilter may take key from a security handler and use in Adobe algorithms.
int	getR() Returns version of standard security handler.
boolean	isAuthorized() Returns true if a valid decryption password, either user or owner, been set?
SecurityHandler	reset(int objnum, int gennum) Resets for decrypting/encrypting another subobject of object at given number.

Methods inherited from class multivalent.std.adaptor.pdf.SecurityHandler

clone, getInstance, register

Methods inherited from class java.lang.Object

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

Constructor Detail

SecurityHandlerPublicKey

public SecurityHandlerPublicKey(Dict edict,
                                COSSource coss)
                         throws ParseException

Throws:

ParseException

SecurityHandlerPublicKey

public SecurityHandlerPublicKey(java.lang.StringBuffer id0,
                                int R,
                                int P,
                                int Length,
                                java.lang.String userpassword,
                                java.lang.String ownerpassword)
                         throws java.lang.UnsupportedOperationException,
                                java.lang.IllegalArgumentException

Construct a Standard encryption filter with given parameters and passwords. Sets key for further encryption/decryption.

Throws:

java.lang.UnsupportedOperationException

java.lang.IllegalArgumentException

Method Detail

getKey

public byte[] getKey()

Description copied from class: SecurityHandler

CryptFilter may take key from a security handler and use in Adobe algorithms.

Specified by:

getKey in class SecurityHandler

getR

public int getR()

Returns version of standard security handler.

isAuthorized

public boolean isAuthorized()

Description copied from class: SecurityHandler

Returns true if a valid decryption password, either user or owner, been set?

Specified by:

isAuthorized in class SecurityHandler

encrypt

public byte[] encrypt(byte[] data,
                      int off,
                      int len)

Description copied from class: SecurityHandler

Encrypts data of object objnum with generation gennum. Data is encrypted in place, which is to say the contents data are mutated.

Specified by:

encrypt in class SecurityHandler

Returns:

handle to encrypted data, which is same handle as the passed data.

decrypt

public byte[] decrypt(byte[] data,
                      int off,
                      int len)

Description copied from class: SecurityHandler

Decrypts stream data of object objnum with generation gennum. Data is decrypted in place, which is to say the contents data are mutated.

Specified by:

decrypt in class SecurityHandler

Returns:

handle to decrypted data, which is same handle as the passed data.

reset

public SecurityHandler reset(int objnum,
                             int gennum)

Description copied from class: SecurityHandler

Resets for decrypting/encrypting another subobject of object at given number.

Specified by:

reset in class SecurityHandler

authUser

public boolean authUser(java.lang.String user)

Specified by:

authUser in class SecurityHandler

authOwner

public boolean authOwner(java.lang.String owner)

Specified by:

authOwner in class SecurityHandler

computeKey

public byte[] computeKey(java.lang.String password)

Specified by:

computeKey in class SecurityHandler