Imported GNU Classpath 0.90
Imported GNU Classpath 0.90
* scripts/makemake.tcl: Set gnu/java/awt/peer/swing to ignore.
* gnu/classpath/jdwp/VMFrame.java (SIZE): New constant.
* java/lang/VMCompiler.java: Use gnu.java.security.hash.MD5.
* java/lang/Math.java: New override file.
* java/lang/Character.java: Merged from Classpath.
(start, end): Now 'int's.
(canonicalName): New field.
(CANONICAL_NAME, NO_SPACES_NAME, CONSTANT_NAME): New constants.
(UnicodeBlock): Added argument.
(of): New overload.
(forName): New method.
Updated unicode blocks.
(sets): Updated.
* sources.am: Regenerated.
* Makefile.in: Likewise.
From-SVN: r111942
This commit is contained in:
Mark Wielaard
@@ -0,0 +1,199 @@
|
||||
/* BasePRNG.java --
|
||||
Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is a part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at
|
||||
your option) any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
||||
USA
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.java.security.prng;
|
||||
|
||||
import java.util.Map;
|
||||
|
||||
/**
|
||||
* <p>An abstract class to facilitate implementing PRNG algorithms.</p>
|
||||
*/
|
||||
public abstract class BasePRNG implements IRandom
|
||||
{
|
||||
|
||||
// Constants and variables
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/** The canonical name prefix of the PRNG algorithm. */
|
||||
protected String name;
|
||||
|
||||
/** Indicate if this instance has already been initialised or not. */
|
||||
protected boolean initialised;
|
||||
|
||||
/** A temporary buffer to serve random bytes. */
|
||||
protected byte[] buffer;
|
||||
|
||||
/** The index into buffer of where the next byte will come from. */
|
||||
protected int ndx;
|
||||
|
||||
// Constructor(s)
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/**
|
||||
* <p>Trivial constructor for use by concrete subclasses.</p>
|
||||
*
|
||||
* @param name the canonical name of this instance.
|
||||
*/
|
||||
protected BasePRNG(String name)
|
||||
{
|
||||
super();
|
||||
|
||||
this.name = name;
|
||||
initialised = false;
|
||||
buffer = new byte[0];
|
||||
}
|
||||
|
||||
// Class methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Instance methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// IRandom interface implementation ----------------------------------------
|
||||
|
||||
public String name()
|
||||
{
|
||||
return name;
|
||||
}
|
||||
|
||||
public void init(Map attributes)
|
||||
{
|
||||
this.setup(attributes);
|
||||
|
||||
ndx = 0;
|
||||
initialised = true;
|
||||
}
|
||||
|
||||
public byte nextByte() throws IllegalStateException, LimitReachedException
|
||||
{
|
||||
if (!initialised)
|
||||
{
|
||||
throw new IllegalStateException();
|
||||
}
|
||||
return nextByteInternal();
|
||||
}
|
||||
|
||||
public void nextBytes(byte[] out) throws IllegalStateException,
|
||||
LimitReachedException
|
||||
{
|
||||
nextBytes(out, 0, out.length);
|
||||
}
|
||||
|
||||
public void nextBytes(byte[] out, int offset, int length)
|
||||
throws IllegalStateException, LimitReachedException
|
||||
{
|
||||
if (!initialised)
|
||||
throw new IllegalStateException("not initialized");
|
||||
|
||||
if (length == 0)
|
||||
return;
|
||||
|
||||
if (offset < 0 || length < 0 || offset + length > out.length)
|
||||
throw new ArrayIndexOutOfBoundsException("offset=" + offset + " length="
|
||||
+ length + " limit="
|
||||
+ out.length);
|
||||
|
||||
if (ndx >= buffer.length)
|
||||
{
|
||||
fillBlock();
|
||||
ndx = 0;
|
||||
}
|
||||
int count = 0;
|
||||
while (count < length)
|
||||
{
|
||||
int amount = Math.min(buffer.length - ndx, length - count);
|
||||
System.arraycopy(buffer, ndx, out, offset + count, amount);
|
||||
count += amount;
|
||||
ndx += amount;
|
||||
if (ndx >= buffer.length)
|
||||
{
|
||||
fillBlock();
|
||||
ndx = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public void addRandomByte(byte b)
|
||||
{
|
||||
throw new UnsupportedOperationException("random state is non-modifiable");
|
||||
}
|
||||
|
||||
public void addRandomBytes(byte[] buffer)
|
||||
{
|
||||
addRandomBytes(buffer, 0, buffer.length);
|
||||
}
|
||||
|
||||
public void addRandomBytes(byte[] buffer, int offset, int length)
|
||||
{
|
||||
throw new UnsupportedOperationException("random state is non-modifiable");
|
||||
}
|
||||
|
||||
// Instance methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
public boolean isInitialised()
|
||||
{
|
||||
return initialised;
|
||||
}
|
||||
|
||||
private byte nextByteInternal() throws LimitReachedException
|
||||
{
|
||||
if (ndx >= buffer.length)
|
||||
{
|
||||
this.fillBlock();
|
||||
ndx = 0;
|
||||
}
|
||||
|
||||
return buffer[ndx++];
|
||||
}
|
||||
|
||||
// abstract methods to implement by subclasses -----------------------------
|
||||
|
||||
public Object clone() throws CloneNotSupportedException
|
||||
{
|
||||
BasePRNG result = (BasePRNG) super.clone();
|
||||
if (this.buffer != null)
|
||||
result.buffer = (byte[]) this.buffer.clone();
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
public abstract void setup(Map attributes);
|
||||
|
||||
public abstract void fillBlock() throws LimitReachedException;
|
||||
}
|
||||
@@ -0,0 +1,62 @@
|
||||
/* EntropySource.java --
|
||||
Copyright (C) 2004, 2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is a part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at
|
||||
your option) any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
||||
USA
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.java.security.prng;
|
||||
|
||||
/**
|
||||
* A generic interface for adding random bytes to an entropy pool.
|
||||
*/
|
||||
public interface EntropySource
|
||||
{
|
||||
|
||||
/**
|
||||
* Returns the estimated quality of this source. This value should be
|
||||
* between 0 and 100 (the running quality is computed as a percentage,
|
||||
* 100 percent being perfect-quality).
|
||||
*
|
||||
* @return The quality.
|
||||
*/
|
||||
double quality();
|
||||
|
||||
/**
|
||||
* Returns a new buffer with the next random bytes to add.
|
||||
*
|
||||
* @return The next random bytes.
|
||||
*/
|
||||
byte[] nextBytes();
|
||||
}
|
||||
@@ -0,0 +1,180 @@
|
||||
/* IRandom.java --
|
||||
Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is a part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at
|
||||
your option) any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
||||
USA
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.java.security.prng;
|
||||
|
||||
import java.util.Map;
|
||||
|
||||
/**
|
||||
* <p>The basic visible methods of any pseudo-random number generator.</p>
|
||||
*
|
||||
* <p>The [HAC] defines a PRNG (as implemented in this library) as follows:</p>
|
||||
*
|
||||
* <ul>
|
||||
* <li>"5.6 Definition: A pseudorandom bit generator (PRBG) is said to pass
|
||||
* the <em>next-bit test</em> if there is no polynomial-time algorithm which,
|
||||
* on input of the first <code>L</code> bits of an output sequence <code>S</code>,
|
||||
* can predict the <code>(L+1)</code>st bit of <code>S</code> with a
|
||||
* probability significantly grater than <code>1/2</code>."</li>
|
||||
*
|
||||
* <li>"5.8 Definition: A PRBG that passes the <em>next-bit test</em>
|
||||
* (possibly under some plausible but unproved mathematical assumption such
|
||||
* as the intractability of factoring integers) is called a
|
||||
* <em>cryptographically secure pseudorandom bit generator</em> (CSPRBG)."</li>
|
||||
* </ul>
|
||||
*
|
||||
* <p><b>IMPLEMENTATION NOTE</b>: Although all the concrete classes in this
|
||||
* package implement the {@link Cloneable} interface, it is important to note
|
||||
* here that such an operation, for those algorithms that use an underlting
|
||||
* symmetric key block cipher, <b>DOES NOT</b> clone any session key material
|
||||
* that may have been used in initialising the source PRNG (the instance to be
|
||||
* cloned). Instead a clone of an already initialised PRNG, that uses and
|
||||
* underlying symmetric key block cipher, is another instance with a clone of
|
||||
* the same cipher that operates with the <b>same block size</b> but without any
|
||||
* knowledge of neither key material nor key size.</p>
|
||||
*
|
||||
* <p>References:</p>
|
||||
*
|
||||
* <ol>
|
||||
* <li><a href="http://www.cacr.math.uwaterloo.ca/hac">[HAC]</a>: Handbook of
|
||||
* Applied Cryptography.<br>
|
||||
* CRC Press, Inc. ISBN 0-8493-8523-7, 1997<br>
|
||||
* Menezes, A., van Oorschot, P. and S. Vanstone.</li>
|
||||
* </ol>
|
||||
*/
|
||||
public interface IRandom extends Cloneable
|
||||
{
|
||||
|
||||
// Constants
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/**
|
||||
* <p>Returns the canonical name of this instance.</p>
|
||||
*
|
||||
* @return the canonical name of this instance. */
|
||||
String name();
|
||||
|
||||
/**
|
||||
* <p>Initialises the pseudo-random number generator scheme with the
|
||||
* appropriate attributes.</p>
|
||||
*
|
||||
* @param attributes a set of name-value pairs that describe the desired
|
||||
* future instance behaviour.
|
||||
* @exception IllegalArgumentException if at least one of the defined name/
|
||||
* value pairs contains invalid data.
|
||||
*/
|
||||
void init(Map attributes);
|
||||
|
||||
/**
|
||||
* <p>Returns the next 8 bits of random data generated from this instance.</p>
|
||||
*
|
||||
* @return the next 8 bits of random data generated from this instance.
|
||||
* @exception IllegalStateException if the instance is not yet initialised.
|
||||
* @exception LimitReachedException if this instance has reached its
|
||||
* theoretical limit for generating non-repetitive pseudo-random data.
|
||||
*/
|
||||
byte nextByte() throws IllegalStateException, LimitReachedException;
|
||||
|
||||
/**
|
||||
* <p>Fills the designated byte array, starting from byte at index
|
||||
* <code>offset</code>, for a maximum of <code>length</code> bytes with the
|
||||
* output of this generator instance.
|
||||
*
|
||||
* @param out the placeholder to contain the generated random bytes.
|
||||
* @param offset the starting index in <i>out</i> to consider. This method
|
||||
* does nothing if this parameter is not within <code>0</code> and
|
||||
* <code>out.length</code>.
|
||||
* @param length the maximum number of required random bytes. This method
|
||||
* does nothing if this parameter is less than <code>1</code>.
|
||||
* @exception IllegalStateException if the instance is not yet initialised.
|
||||
* @exception LimitReachedException if this instance has reached its
|
||||
* theoretical limit for generating non-repetitive pseudo-random data.
|
||||
*/
|
||||
void nextBytes(byte[] out, int offset, int length)
|
||||
throws IllegalStateException, LimitReachedException;
|
||||
|
||||
/**
|
||||
* <p>Supplement, or possibly replace, the random state of this PRNG with
|
||||
* a random byte.</p>
|
||||
*
|
||||
* <p>Implementations are not required to implement this method in any
|
||||
* meaningful way; this may be a no-operation, and implementations may
|
||||
* throw an {@link UnsupportedOperationException}.</p>
|
||||
*
|
||||
* @param b The byte to add.
|
||||
*/
|
||||
void addRandomByte(byte b);
|
||||
|
||||
/**
|
||||
* <p>Supplement, or possibly replace, the random state of this PRNG with
|
||||
* a sequence of new random bytes.</p>
|
||||
*
|
||||
* <p>Implementations are not required to implement this method in any
|
||||
* meaningful way; this may be a no-operation, and implementations may
|
||||
* throw an {@link UnsupportedOperationException}.</p>
|
||||
*
|
||||
* @param in The buffer of new random bytes to add.
|
||||
*/
|
||||
void addRandomBytes(byte[] in);
|
||||
|
||||
/**
|
||||
* <p>Supplement, or possibly replace, the random state of this PRNG with
|
||||
* a sequence of new random bytes.</p>
|
||||
*
|
||||
* <p>Implementations are not required to implement this method in any
|
||||
* meaningful way; this may be a no-operation, and implementations may
|
||||
* throw an {@link UnsupportedOperationException}.</p>
|
||||
*
|
||||
* @param in The buffer of new random bytes to add.
|
||||
* @param offset The offset from whence to begin reading random bytes.
|
||||
* @param length The number of random bytes to add.
|
||||
* @exception IndexOutOfBoundsException If <i>offset</i>, <i>length</i>,
|
||||
* or <i>offset</i>+<i>length</i> is out of bounds.
|
||||
*/
|
||||
void addRandomBytes(byte[] in, int offset, int length);
|
||||
|
||||
/**
|
||||
* <p>Returns a clone copy of this instance.</p>
|
||||
*
|
||||
* @return a clone copy of this instance.
|
||||
*/
|
||||
Object clone() throws CloneNotSupportedException;
|
||||
}
|
||||
@@ -0,0 +1,69 @@
|
||||
/* LimitReachedException.java --
|
||||
Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is a part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at
|
||||
your option) any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
||||
USA
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.java.security.prng;
|
||||
|
||||
/**
|
||||
* A checked exception that indicates that a pseudo random number generated has
|
||||
* reached its theoretical limit in generating random bytes.
|
||||
*/
|
||||
public class LimitReachedException extends Exception
|
||||
{
|
||||
|
||||
// Constants and variables
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Constructor(s)
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
public LimitReachedException()
|
||||
{
|
||||
super();
|
||||
}
|
||||
|
||||
public LimitReachedException(String msg)
|
||||
{
|
||||
super(msg);
|
||||
}
|
||||
|
||||
// Class methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Instant methods
|
||||
// -------------------------------------------------------------------------
|
||||
}
|
||||
@@ -0,0 +1,135 @@
|
||||
/* MDGenerator.java --
|
||||
Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is a part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at
|
||||
your option) any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
||||
USA
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.java.security.prng;
|
||||
|
||||
import gnu.java.security.Registry;
|
||||
import gnu.java.security.hash.HashFactory;
|
||||
import gnu.java.security.hash.IMessageDigest;
|
||||
|
||||
import java.util.Map;
|
||||
|
||||
/**
|
||||
* <p>A simple pseudo-random number generator that relies on a hash algorithm,
|
||||
* that (a) starts its operation by hashing a <code>seed</code>, and then (b)
|
||||
* continuously re-hashing its output. If no hash algorithm name is specified
|
||||
* in the {@link Map} of attributes used to initialise the instance then the
|
||||
* SHA-160 algorithm is used as the underlying hash function. Also, if no
|
||||
* <code>seed</code> is given, an empty octet sequence is used.</p>
|
||||
*/
|
||||
public class MDGenerator extends BasePRNG implements Cloneable
|
||||
{
|
||||
|
||||
// Constants and variables
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/** Property name of underlying hash algorithm for this generator. */
|
||||
public static final String MD_NAME = "gnu.crypto.prng.md.hash.name";
|
||||
|
||||
/** Property name of seed material. */
|
||||
public static final String SEEED = "gnu.crypto.prng.md.seed";
|
||||
|
||||
/** The underlying hash instance. */
|
||||
private IMessageDigest md;
|
||||
|
||||
// Constructor(s)
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/** Trivial 0-arguments constructor. */
|
||||
public MDGenerator()
|
||||
{
|
||||
super(Registry.MD_PRNG);
|
||||
}
|
||||
|
||||
// Class methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Instance methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Implementation of abstract methods in BaseRandom ------------------------
|
||||
|
||||
public void setup(Map attributes)
|
||||
{
|
||||
// find out which hash to use
|
||||
String underlyingMD = (String) attributes.get(MD_NAME);
|
||||
if (underlyingMD == null)
|
||||
{
|
||||
if (md == null)
|
||||
{ // happy birthday
|
||||
// ensure we have a reliable implementation of this hash
|
||||
md = HashFactory.getInstance(Registry.SHA160_HASH);
|
||||
}
|
||||
else
|
||||
{ // a clone. reset it for reuse
|
||||
md.reset();
|
||||
}
|
||||
}
|
||||
else
|
||||
{ // ensure we have a reliable implementation of this hash
|
||||
md = HashFactory.getInstance(underlyingMD);
|
||||
}
|
||||
|
||||
// get the seeed
|
||||
byte[] seed = (byte[]) attributes.get(SEEED);
|
||||
if (seed == null)
|
||||
{
|
||||
seed = new byte[0];
|
||||
}
|
||||
|
||||
md.update(seed, 0, seed.length);
|
||||
}
|
||||
|
||||
public void fillBlock() throws LimitReachedException
|
||||
{
|
||||
IMessageDigest mdc = (IMessageDigest) md.clone();
|
||||
buffer = mdc.digest();
|
||||
md.update(buffer, 0, buffer.length);
|
||||
}
|
||||
|
||||
// Cloneable interface implementation ---------------------------------------
|
||||
|
||||
public Object clone() throws CloneNotSupportedException
|
||||
{
|
||||
MDGenerator result = (MDGenerator) super.clone();
|
||||
if (this.md != null)
|
||||
result.md = (IMessageDigest) this.md.clone();
|
||||
|
||||
return result;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,109 @@
|
||||
/* PRNGFactory.java --
|
||||
Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is a part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at
|
||||
your option) any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
||||
USA
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.java.security.prng;
|
||||
|
||||
import gnu.java.security.Registry;
|
||||
|
||||
import java.util.Collections;
|
||||
import java.util.HashSet;
|
||||
import java.util.Iterator;
|
||||
import java.util.Set;
|
||||
|
||||
/**
|
||||
* <p>A Factory to instantiate pseudo random number generators.</p>
|
||||
*/
|
||||
public class PRNGFactory implements Registry
|
||||
{
|
||||
|
||||
// Constants and variables
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Constructor(s)
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/** Trivial constructor to enforce <i>Singleton</i> pattern. */
|
||||
protected PRNGFactory()
|
||||
{
|
||||
}
|
||||
|
||||
// Class methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/**
|
||||
* <p>Returns an instance of a padding algorithm given its name.</p>
|
||||
*
|
||||
* @param prng the case-insensitive name of the PRNG.
|
||||
* @return an instance of the pseudo-random number generator.
|
||||
* @exception InternalError if the implementation does not pass its self-
|
||||
* test.
|
||||
*/
|
||||
public static final IRandom getInstance(String prng)
|
||||
{
|
||||
if (prng == null)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
prng = prng.trim();
|
||||
IRandom result = null;
|
||||
if (prng.equalsIgnoreCase(MD_PRNG))
|
||||
{
|
||||
result = new MDGenerator();
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* <p>Returns a {@link Set} of names of padding algorithms supported by this
|
||||
* <i>Factory</i>.</p>
|
||||
*
|
||||
* @return a {@link Set} of pseudo-random number generator algorithm names
|
||||
* (Strings).
|
||||
*/
|
||||
public static final Set getNames()
|
||||
{
|
||||
HashSet hs = new HashSet();
|
||||
hs.add(MD_PRNG);
|
||||
return Collections.unmodifiableSet(hs);
|
||||
}
|
||||
|
||||
// Instance methods
|
||||
// -------------------------------------------------------------------------
|
||||
}
|
||||
@@ -0,0 +1,82 @@
|
||||
/* RandomEvent.java -- an event with random data.
|
||||
Copyright (C) 2004, 2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is a part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at
|
||||
your option) any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
||||
USA
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.java.security.prng;
|
||||
|
||||
import java.util.EventObject;
|
||||
|
||||
/**
|
||||
* An interface for entropy accumulators that will be notified of random
|
||||
* events.
|
||||
*/
|
||||
public class RandomEvent extends EventObject
|
||||
{
|
||||
|
||||
private final byte sourceNumber;
|
||||
|
||||
private final byte poolNumber;
|
||||
|
||||
private final byte[] data;
|
||||
|
||||
public RandomEvent(Object source, byte sourceNumber, byte poolNumber,
|
||||
byte[] data)
|
||||
{
|
||||
super(source);
|
||||
this.sourceNumber = sourceNumber;
|
||||
this.poolNumber = poolNumber;
|
||||
if (data.length == 0 || data.length > 32)
|
||||
throw new IllegalArgumentException(
|
||||
"random events take between 1 and 32 bytes of data");
|
||||
this.data = (byte[]) data.clone();
|
||||
}
|
||||
|
||||
public byte getSourceNumber()
|
||||
{
|
||||
return sourceNumber;
|
||||
}
|
||||
|
||||
public byte getPoolNumber()
|
||||
{
|
||||
return poolNumber;
|
||||
}
|
||||
|
||||
public byte[] getData()
|
||||
{
|
||||
return data;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,50 @@
|
||||
/* RandomEventListener.java --
|
||||
Copyright (C) 2004, 2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is a part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at
|
||||
your option) any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
||||
USA
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.java.security.prng;
|
||||
|
||||
import java.util.EventListener;
|
||||
|
||||
/**
|
||||
* An interface for entropy accumulators that will be notified of random
|
||||
* events.
|
||||
*/
|
||||
public interface RandomEventListener extends EventListener
|
||||
{
|
||||
void addRandomEvent(RandomEvent event);
|
||||
}
|
||||
Reference in New Issue
Block a user