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java.lang.Objectorg.pdfbox.encryption.PDFEncryption
This class will deal with PDF encryption algorithms.
StandardSecurityHandler| Field Summary | |
static byte[] |
ENCRYPT_PADDING
Deprecated. The encryption padding defined in the PDF 1.4 Spec algorithm 3.2. |
| Constructor Summary | |
PDFEncryption()
Deprecated. |
|
| Method Summary | |
byte[] |
computeEncryptedKey(byte[] password,
byte[] o,
int permissions,
byte[] id,
int revision,
int length)
Deprecated. This will compute the encrypted key. |
byte[] |
computeOwnerPassword(byte[] ownerPassword,
byte[] userPassword,
int revision,
int length)
Deprecated. This algorithm is taked from PDF Reference 1.4 Algorithm 3.3 Page 79. |
byte[] |
computeUserPassword(byte[] password,
byte[] o,
int permissions,
byte[] id,
int revision,
int length)
Deprecated. This will compute the user password hash. |
void |
encryptData(long objectNumber,
long genNumber,
byte[] key,
InputStream data,
OutputStream output)
Deprecated. This will encrypt a piece of data. |
byte[] |
getUserPassword(byte[] ownerPassword,
byte[] o,
int revision,
long length)
Deprecated. This will get the user password from the owner password and the documents o value. |
boolean |
isOwnerPassword(byte[] ownerPassword,
byte[] u,
byte[] o,
int permissions,
byte[] id,
int revision,
int length)
Deprecated. This will tell if this is the owner password or not. |
boolean |
isUserPassword(byte[] password,
byte[] u,
byte[] o,
int permissions,
byte[] id,
int revision,
int length)
Deprecated. This will tell if this is a valid user password. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
public static final byte[] ENCRYPT_PADDING
| Constructor Detail |
public PDFEncryption()
| Method Detail |
public final void encryptData(long objectNumber,
long genNumber,
byte[] key,
InputStream data,
OutputStream output)
throws CryptographyException,
IOException
objectNumber - The id for the object.genNumber - The generation id for the object.key - The key used to encrypt the data.data - The data to encrypt/decrypt.output - The stream to write to.
CryptographyException - If there is an error encrypting the data.
IOException - If there is an io error.
public final byte[] getUserPassword(byte[] ownerPassword,
byte[] o,
int revision,
long length)
throws CryptographyException,
IOException
ownerPassword - The plaintext owner password.o - The document's o entry.revision - The document revision number.length - The length of the encryption.
CryptographyException - If there is an error getting the user password.
IOException - If there is an error reading data.
public final boolean isOwnerPassword(byte[] ownerPassword,
byte[] u,
byte[] o,
int permissions,
byte[] id,
int revision,
int length)
throws CryptographyException,
IOException
ownerPassword - The plaintext owner password.u - The U value from the PDF Document.o - The owner password hash.permissions - The document permissions.id - The document id.revision - The revision of the encryption.length - The length of the encryption key.
CryptographyException - If there is an error while executing crypt functions.
IOException - If there is an error while checking owner password.
public final boolean isUserPassword(byte[] password,
byte[] u,
byte[] o,
int permissions,
byte[] id,
int revision,
int length)
throws CryptographyException,
IOException
password - The password to test.u - The U value from the PDF Document.o - The owner password hash.permissions - The document permissions.id - The document id.revision - The revision of the encryption.length - The length of the encryption key.
CryptographyException - If there is an error computing the value.
IOException - If there is an IO error while computing the owners password.
public final byte[] computeUserPassword(byte[] password,
byte[] o,
int permissions,
byte[] id,
int revision,
int length)
throws CryptographyException,
IOException
password - The plain text password.o - The owner password hash.permissions - The document permissions.id - The document id.revision - The revision of the encryption.length - The length of the encryption key.
CryptographyException - If there is an error computing the user password.
IOException - If there is an IO error.
public final byte[] computeEncryptedKey(byte[] password,
byte[] o,
int permissions,
byte[] id,
int revision,
int length)
throws CryptographyException
password - The password used to compute the encrypted key.o - The owner password hash.permissions - The permissions for the document.id - The document id.revision - The security revision.length - The length of the encryption key.
CryptographyException - If there is an error computing the key.
public final byte[] computeOwnerPassword(byte[] ownerPassword,
byte[] userPassword,
int revision,
int length)
throws CryptographyException,
IOException
ownerPassword - The plain owner password.userPassword - The plain user password.revision - The version of the security.length - The length of the document.
CryptographyException - If there is an error computing O.
IOException - If there is an error computing O.
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