@NotThreadSafe @DefaultAnnotation(value=edu.umd.cs.findbugs.annotations.NonNull.class) public abstract class RaesOutputStream extends CipherOutputStream
OutputStream to produce a file with data ecnrypted according
to the Random Access Encryption Specification (RAES).RaesReadOnlyFilecipherdelegate| Constructor and Description |
|---|
RaesOutputStream(OutputStream out,
BufferedBlockCipher cipher) |
| Modifier and Type | Method and Description |
|---|---|
static RaesOutputStream |
getInstance(OutputStream out,
RaesParameters param)
Returns a new
RaesOutputStream. |
abstract KeyStrength |
getKeyStrength()
Returns the key strength which is actually used to encrypt the data of
the RAES file.
|
(package private) static void |
klac(Mac klac,
long length,
byte[] buf)
Update the given KLAC with the given file
length in
little endian order and finalize it, writing the result to buf. |
close, finish, write, writeflush, toString, writeRaesOutputStream(@CheckForNull
OutputStream out,
@CheckForNull
BufferedBlockCipher cipher)
public static RaesOutputStream getInstance(OutputStream out, @CheckForNull RaesParameters param) throws IOException
RaesOutputStream.out - the output stream to decorate for writing the ciphered data.param - The RaesParameters used to determine and
configure the type of RAES file created.
If the run time class of this parameter matches multiple
parameter interfaces, it is at the discretion of this
implementation which one is picked and hence which type of
RAES file is created.
If you need more control over this, pass in an instance which's
run time class just implements the
RaesParametersProvider interface.
Instances of this interface are queried to find RAES parameters
which match a known RAES type.
This algorithm is recursively applied.RaesOutputStream.RaesParametersException - if param is null or
no suitable RAES parameters can be found.IOException - on any I/O error.public abstract KeyStrength getKeyStrength()
static void klac(Mac klac, long length, byte[] buf)
length in
little endian order and finalize it, writing the result to buf.
The KLAC must already have been initialized and updated with the
password bytes as retrieved according to PKCS #12.
The result is stored in buf, which must match the given
KLAC's output size.Copyright © 2004-2011 Schlichtherle IT Services. All Rights Reserved.