| java.lang.Object
 org.pdfbox.pdmodel.encryption.SecurityHandler
All known Subclasses: org.pdfbox.pdmodel.encryption.StandardSecurityHandler, org.pdfbox.pdmodel.encryption.PublicKeySecurityHandler,
| SecurityHandler | | abstract public class SecurityHandler (Code) | | This class represents a security handler as described in the PDF specifications.
A security handler is responsible of documents protection.
author:
Ben Litchfield
author:
Benoit Guillon (benoit.guillon@snv.jussieu.fr)
version:
$Revision: 1.4 $ |
| Field Summary | |
| protected AccessPermission | currentAccessPermission
The access permission granted to the current user for the document. | | protected PDDocument | document
The document whose security is handled by this security handler. | | protected byte[] | encryptionKey
The encryption key that will used to encrypt / decrypt. | | protected int | keyLength
The length of the secret key used to encrypt the document. | | protected ARCFour | rc4
The RC4 implementation used for cryptographic functions. | | protected int | version
The value of V field of the Encryption dictionary. |
| currentAccessPermission | | protected AccessPermission currentAccessPermission(Code) | | The access permission granted to the current user for the document. These
permissions are computed during decryption and are in read only mode.
|
| document | | protected PDDocument document(Code) | | The document whose security is handled by this security handler.
|
| encryptionKey | | protected byte[] encryptionKey(Code) | | The encryption key that will used to encrypt / decrypt.
|
| keyLength | | protected int keyLength(Code) | | The length of the secret key used to encrypt the document.
|
| rc4 | | protected ARCFour rc4(Code) | | The RC4 implementation used for cryptographic functions.
|
| version | | protected int version(Code) | | The value of V field of the Encryption dictionary.
|
| decryptStream | | public void decryptStream(COSStream stream, long objNum, long genNum) throws CryptographyException, IOException(Code) | | This will decrypt a stream.
Parameters:
stream - The stream to decrypt.
Parameters:
objNum - The object number.
Parameters:
genNum - The object generation number.
throws:
CryptographyException - If there is an error getting the stream.
throws:
IOException - If there is an error getting the stream data. |
| decryptString | | public void decryptString(COSString string, long objNum, long genNum) throws CryptographyException, IOException(Code) | | This will decrypt a string.
Parameters:
string - the string to decrypt.
Parameters:
objNum - The object number.
Parameters:
genNum - The object generation number.
throws:
CryptographyException - If an error occurs during decryption.
throws:
IOException - If an error occurs writing the new string. |
| encryptData | | public void encryptData(long objectNumber, long genNumber, InputStream data, OutputStream output) throws CryptographyException, IOException(Code) | | Encrypt a set of data.
Parameters:
objectNumber - The data object number.
Parameters:
genNumber - The data generation number.
Parameters:
data - The data to encrypt.
Parameters:
output - The output to write the encrypted data to.
throws:
CryptographyException - If there is an error during the encryption.
throws:
IOException - If there is an error reading the data. |
| getCurrentAccessPermission | | public AccessPermission getCurrentAccessPermission()(Code) | | Returns the access permissions that were computed during document decryption.
The returned object is in read only mode.
the access permissions or null if the document was not decrypted. |
| getKeyLength | | public int getKeyLength()(Code) | | Getter of the property keyLength.
Returns the keyLength. |
| setKeyLength | | public void setKeyLength(int keyLen)(Code) | | Setter of the property keyLength.
Parameters:
keyLen - The keyLength to set. |
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