Package com.inductiveautomation.rm.pdf.writer

Class PDFEncryptor

java.lang.Object

com.inductiveautomation.rm.pdf.reader.PDFSecurityHandler

com.inductiveautomation.rm.pdf.writer.PDFEncryptor

public class PDFEncryptor
extends PDFSecurityHandler

The PDFEncyptor is a subclass of PDFSecurityHandler that is used to encrypt strings and streams for pdf output.

Field Summary

Fields inherited from class com.inductiveautomation.rm.pdf.reader.PDFSecurityHandler

ACCESSABILITY_EXTRACTS_ALLOWED, ADD_ANNOTATIONS_ALLOWED, ASSEMBLE_DOCUMENT_ALLOWED, EXTRACT_TEXT_AND_IMAGES_ALLOWED, FILL_IN_FORMS_ALLOWED, MAXIMUM_RESOLUTION_PRINTING_ALLOWED, MODIFICATIONS_ALLOWED, PRINTING_ALLOWED

Constructor Summary

Constructors

Constructor	Description
PDFEncryptor(byte[] fileID, String ownerP, String userP, int permissionFlags)	Creates a new new PDF encryptor.

Method Summary

Modifier and Type	Method	Description
byte[]	encryptBytes(byte[] aBuffer)	Returns a new copy of the input buffer, encrypted.
byte[]	encryptString(String s)	Returns the contents of the pdf string, encrypted
Map	getEncryptionDict()	Returns the encryption dictionary.
void	startEncrypt(int oNum, int gNum)	Encryption of strings and streams use the object number and generation number as part of the encryption algorithm.

Methods inherited from class com.inductiveautomation.rm.pdf.reader.PDFSecurityHandler

arcfour_decrypt, decryptDeep, decryptObject, getBytesForEncryptionEntry, getEncryptionKey, getEncryptionKey, getInstance, getOwnerPasswordEntry, getOwnerPasswordEntryBytes, getPDFStringForBytes, getUserPasswordEntry, getUserPasswordEntryBytes, init, main, setEncryptionParameters, startDecrypt

Methods inherited from class java.lang.Object

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

Constructor Details

PDFEncryptor

public PDFEncryptor(byte[] fileID,
 String ownerP,
 String userP,
 int permissionFlags)

Creates a new new PDF encryptor. Both the owner and user passwords are optional.

Method Details

getEncryptionDict

public Map getEncryptionDict()

Returns the encryption dictionary.

startEncrypt

public void startEncrypt(int oNum,
 int gNum)

Encryption of strings and streams use the object number and generation number as part of the encryption algorithm. For strings inside other objects, the object & generation number used are the ones for the enclosing object. When an object from the xref table is output, it calls startEncrypt() to save away these numbers so all objects inside the xref object will use the right values. Encrypt-decrypt is symmetric, so call superclass decrypt to create the encryption key

encryptString

public byte[] encryptString(String s)

Returns the contents of the pdf string, encrypted

encryptBytes

public byte[] encryptBytes(byte[] aBuffer)

Returns a new copy of the input buffer, encrypted.