Java Doc for StandardSecurityHandler.java in  » PDF » PDFBox-0.7.3 » org » pdfbox » pdmodel » encryption » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » PDF » PDFBox 0.7.3 » org.pdfbox.pdmodel.encryption   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.pdfbox.pdmodel.encryption.SecurityHandler       org.pdfbox.pdmodel.encryption.StandardSecurityHandler StandardSecurityHandler public class StandardSecurityHandler extends SecurityHandler (Code) The class implements the standard security handler as decribed in the PDF specifications. This security handler protects document with password. See Also:   StandardProtectionPolicy See Also:    to see how to protect document with this security handler. author:    Ben Litchfield author:    Benoit Guillon (benoit.guillon@snv.jussieu.fr) version:    $Revision: 1.3 $ Field Summary final public static  byte[] ENCRYPT_PADDING      Standard padding for encryption. final public static  String FILTER      Type of security handler. final public static  Class PROTECTION_POLICY_CLASS      Protection policy class for this handler. Constructor Summary public   StandardSecurityHandler()      Constructor. public   StandardSecurityHandler(StandardProtectionPolicy p)      Constructor used for encryption. Method Summary final public  byte[] computeEncryptedKey(byte[] password, byte[] o, int permissions, byte[] id, int encRevision, int length)      Compute the encryption key. Parameters:   password - The password to compute the encrypted key. Parameters:   o - The o entry of the encryption dictionary. Parameters:   permissions - The permissions for the document. Parameters:   id - The document id. Parameters:   encRevision - The revision of the encryption algorithm. Parameters:   length - The length of the encryption key. final public  byte[] computeOwnerPassword(byte[] ownerPassword, byte[] userPassword, int encRevision, int length)      Compute the owner entry in the encryption dictionary. Parameters:   ownerPassword - The plaintext owner password. Parameters:   userPassword - The plaintext user password. Parameters:   encRevision - The revision number of the encryption algorithm. Parameters:   length - The length of the encryption key. final public  byte[] computeUserPassword(byte[] password, byte[] o, int permissions, byte[] id, int encRevision, int length)      This will compute the user password hash. Parameters:   password - The plain text password. Parameters:   o - The owner password hash. Parameters:   permissions - The document permissions. Parameters:   id - The document id. Parameters:   encRevision - The revision of the encryption. Parameters:   length - The length of the encryption key. public  void decryptDocument(PDDocument doc, DecryptionMaterial decryptionMaterial)      Decrypt the document. final public  byte[] getUserPassword(byte[] ownerPassword, byte[] o, int encRevision, long length)      Get the user password based on the owner password. Parameters:   ownerPassword - The plaintext owner password. Parameters:   o - The o entry of the encryption dictionary. Parameters:   encRevision - The encryption revision number. Parameters:   length - The key length. final public  boolean isOwnerPassword(byte[] ownerPassword, byte[] u, byte[] o, int permissions, byte[] id, int encRevision, int length)      Check for owner password. Parameters:   ownerPassword - The owner password. Parameters:   u - The u entry of the encryption dictionary. Parameters:   o - The o entry of the encryption dictionary. Parameters:   permissions - The set of permissions on the document. Parameters:   id - The document id. Parameters:   encRevision - The encryption algorithm revision. Parameters:   length - The encryption key length. final public  boolean isUserPassword(byte[] password, byte[] u, byte[] o, int permissions, byte[] id, int encRevision, int length)      Check if a plaintext password is the user password. Parameters:   password - The plaintext password. Parameters:   u - The u entry of the encryption dictionary. Parameters:   o - The o entry of the encryption dictionary. Parameters:   permissions - The permissions set in the the PDF. Parameters:   id - The document id used for encryption. Parameters:   encRevision - The revision of the encryption algorithm. Parameters:   length - The length of the encryption key. public  void prepareDocumentForEncryption(PDDocument doc)      Prepare document for encryption. Field Detail ENCRYPT_PADDING final public static byte[] ENCRYPT_PADDING(Code) Standard padding for encryption. FILTER final public static String FILTER(Code) Type of security handler. PROTECTION_POLICY_CLASS final public static Class PROTECTION_POLICY_CLASS(Code) Protection policy class for this handler. Constructor Detail StandardSecurityHandler public StandardSecurityHandler()(Code) Constructor. StandardSecurityHandler public StandardSecurityHandler(StandardProtectionPolicy p)(Code) Constructor used for encryption. Parameters:   p - The protection policy. Method Detail computeEncryptedKey final public byte[] computeEncryptedKey(byte[] password, byte[] o, int permissions, byte[] id, int encRevision, int length) throws CryptographyException(Code) Compute the encryption key. Parameters:   password - The password to compute the encrypted key. Parameters:   o - The o entry of the encryption dictionary. Parameters:   permissions - The permissions for the document. Parameters:   id - The document id. Parameters:   encRevision - The revision of the encryption algorithm. Parameters:   length - The length of the encryption key. The encrypted key bytes. throws:   CryptographyException - If there is an error with encryption. computeOwnerPassword final public byte[] computeOwnerPassword(byte[] ownerPassword, byte[] userPassword, int encRevision, int length) throws CryptographyException, IOException(Code) Compute the owner entry in the encryption dictionary. Parameters:   ownerPassword - The plaintext owner password. Parameters:   userPassword - The plaintext user password. Parameters:   encRevision - The revision number of the encryption algorithm. Parameters:   length - The length of the encryption key. The o entry of the encryption dictionary. throws:   CryptographyException - If there is an error with encryption. throws:   IOException - If there is an error accessing data. computeUserPassword final public byte[] computeUserPassword(byte[] password, byte[] o, int permissions, byte[] id, int encRevision, int length) throws CryptographyException, IOException(Code) This will compute the user password hash. Parameters:   password - The plain text password. Parameters:   o - The owner password hash. Parameters:   permissions - The document permissions. Parameters:   id - The document id. Parameters:   encRevision - The revision of the encryption. Parameters:   length - The length of the encryption key. The user password. throws:   CryptographyException - If there is an error computing the user password. throws:   IOException - If there is an IO error. decryptDocument public void decryptDocument(PDDocument doc, DecryptionMaterial decryptionMaterial) throws CryptographyException, IOException(Code) Decrypt the document. Parameters:   doc - The document to be decrypted. Parameters:   decryptionMaterial - Information used to decrypt the document. throws:   IOException - If there is an error accessing data. throws:   CryptographyException - If there is an error with decryption. getUserPassword final public byte[] getUserPassword(byte[] ownerPassword, byte[] o, int encRevision, long length) throws CryptographyException, IOException(Code) Get the user password based on the owner password. Parameters:   ownerPassword - The plaintext owner password. Parameters:   o - The o entry of the encryption dictionary. Parameters:   encRevision - The encryption revision number. Parameters:   length - The key length. The u entry of the encryption dictionary. throws:   CryptographyException - If there is an error generating the user password. throws:   IOException - If there is an error accessing data while generating the user password. isOwnerPassword final public boolean isOwnerPassword(byte[] ownerPassword, byte[] u, byte[] o, int permissions, byte[] id, int encRevision, int length) throws CryptographyException, IOException(Code) Check for owner password. Parameters:   ownerPassword - The owner password. Parameters:   u - The u entry of the encryption dictionary. Parameters:   o - The o entry of the encryption dictionary. Parameters:   permissions - The set of permissions on the document. Parameters:   id - The document id. Parameters:   encRevision - The encryption algorithm revision. Parameters:   length - The encryption key length. True If the ownerPassword param is the owner password. throws:   CryptographyException - If there is an error during encryption. throws:   IOException - If there is an error accessing data. isUserPassword final public boolean isUserPassword(byte[] password, byte[] u, byte[] o, int permissions, byte[] id, int encRevision, int length) throws CryptographyException, IOException(Code) Check if a plaintext password is the user password. Parameters:   password - The plaintext password. Parameters:   u - The u entry of the encryption dictionary. Parameters:   o - The o entry of the encryption dictionary. Parameters:   permissions - The permissions set in the the PDF. Parameters:   id - The document id used for encryption. Parameters:   encRevision - The revision of the encryption algorithm. Parameters:   length - The length of the encryption key. true If the plaintext password is the user password. throws:   CryptographyException - If there is an error during encryption. throws:   IOException - If there is an error accessing data. prepareDocumentForEncryption public void prepareDocumentForEncryption(PDDocument doc) throws CryptographyException, IOException(Code) Prepare document for encryption. Parameters:   doc - The documeent to encrypt. throws:   IOException - If there is an error accessing data. throws:   CryptographyException - If there is an error with decryption. Fields inherited from org.pdfbox.pdmodel.encryption.SecurityHandler protected AccessPermission currentAccessPermission(Code)(Java Doc) protected PDDocument document(Code)(Java Doc) protected byte[] encryptionKey(Code)(Java Doc) protected int keyLength(Code)(Java Doc) protected ARCFour rc4(Code)(Java Doc) protected int version(Code)(Java Doc) Methods inherited from org.pdfbox.pdmodel.encryption.SecurityHandler abstract public void decryptDocument(PDDocument doc, DecryptionMaterial mat) throws CryptographyException, IOException(Code)(Java Doc) public void decryptStream(COSStream stream, long objNum, long genNum) throws CryptographyException, IOException(Code)(Java Doc) public void decryptString(COSString string, long objNum, long genNum) throws CryptographyException, IOException(Code)(Java Doc) public void encryptData(long objectNumber, long genNumber, InputStream data, OutputStream output) throws CryptographyException, IOException(Code)(Java Doc) public AccessPermission getCurrentAccessPermission()(Code)(Java Doc) public int getKeyLength()(Code)(Java Doc) abstract public void prepareDocumentForEncryption(PDDocument doc) throws CryptographyException, IOException(Code)(Java Doc) protected void proceedDecryption() throws IOException, CryptographyException(Code)(Java Doc) public void setKeyLength(int keyLen)(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)