forked from I2P_Developers/i2p.i2p
2006-07-04 jrandom
* New NIO-based tcp transport (NTCP), enabled by default for outbound
connections only. Those who configure their NAT/firewall to allow
inbound connections and specify the external host and port
(dyndns/etc is ok) on /config.jsp can receive inbound connections.
SSU is still enabled for use by default for all users as a fallback.
* Substantial bugfix to the tunnel gateway processing to transfer
messages sequentially instead of interleaved
* Renamed GNU/crypto classes to avoid name clashes with kaffe and other
GNU/Classpath based JVMs
* Adjust the Fortuna PRNG's pooling system to reduce contention on
refill with a background thread to refill the output buffer
* Add per-transport support for the shitlist
* Add a new async pumped tunnel gateway to reduce tunnel dispatcher
contention
This commit is contained in:
jrandom
198
core/java/src/gnu/crypto/hash/BaseHashStandalone.java
Normal file
198
core/java/src/gnu/crypto/hash/BaseHashStandalone.java
Normal file
@@ -0,0 +1,198 @@
|
||||
package gnu.crypto.hash;
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// $Id: BaseHashStandalone.java,v 1.1 2006/02/26 16:30:59 jrandom Exp $
|
||||
//
|
||||
// Copyright (C) 2001, 2002, Free Software Foundation, Inc.
|
||||
//
|
||||
// This file is part of GNU Crypto.
|
||||
//
|
||||
// GNU Crypto 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, or (at your option)
|
||||
// any later version.
|
||||
//
|
||||
// GNU Crypto 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 this program; see the file COPYING. If not, write to the
|
||||
//
|
||||
// Free Software Foundation Inc.,
|
||||
// 51 Franklin Street, 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.
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
/**
|
||||
* <p>A base abstract class to facilitate hash implementations.</p>
|
||||
*
|
||||
* @version $Revision: 1.1 $
|
||||
*/
|
||||
public abstract class BaseHashStandalone implements IMessageDigestStandalone {
|
||||
|
||||
// Constants and variables
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/** The canonical name prefix of the hash. */
|
||||
protected String name;
|
||||
|
||||
/** The hash (output) size in bytes. */
|
||||
protected int hashSize;
|
||||
|
||||
/** The hash (inner) block size in bytes. */
|
||||
protected int blockSize;
|
||||
|
||||
/** Number of bytes processed so far. */
|
||||
protected long count;
|
||||
|
||||
/** Temporary input buffer. */
|
||||
protected byte[] buffer;
|
||||
|
||||
// Constructor(s)
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/**
|
||||
* <p>Trivial constructor for use by concrete subclasses.</p>
|
||||
*
|
||||
* @param name the canonical name prefix of this instance.
|
||||
* @param hashSize the block size of the output in bytes.
|
||||
* @param blockSize the block size of the internal transform.
|
||||
*/
|
||||
protected BaseHashStandalone(String name, int hashSize, int blockSize) {
|
||||
super();
|
||||
|
||||
this.name = name;
|
||||
this.hashSize = hashSize;
|
||||
this.blockSize = blockSize;
|
||||
this.buffer = new byte[blockSize];
|
||||
|
||||
resetContext();
|
||||
}
|
||||
|
||||
// Class methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Instance methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// IMessageDigestStandalone interface implementation ---------------------------------
|
||||
|
||||
public String name() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public int hashSize() {
|
||||
return hashSize;
|
||||
}
|
||||
|
||||
public int blockSize() {
|
||||
return blockSize;
|
||||
}
|
||||
|
||||
public void update(byte b) {
|
||||
// compute number of bytes still unhashed; ie. present in buffer
|
||||
int i = (int)(count % blockSize);
|
||||
count++;
|
||||
buffer[i] = b;
|
||||
if (i == (blockSize - 1)) {
|
||||
transform(buffer, 0);
|
||||
}
|
||||
}
|
||||
|
||||
public void update(byte[] b) {
|
||||
update(b, 0, b.length);
|
||||
}
|
||||
|
||||
public void update(byte[] b, int offset, int len) {
|
||||
int n = (int)(count % blockSize);
|
||||
count += len;
|
||||
int partLen = blockSize - n;
|
||||
int i = 0;
|
||||
|
||||
if (len >= partLen) {
|
||||
System.arraycopy(b, offset, buffer, n, partLen);
|
||||
transform(buffer, 0);
|
||||
for (i = partLen; i + blockSize - 1 < len; i+= blockSize) {
|
||||
transform(b, offset + i);
|
||||
}
|
||||
n = 0;
|
||||
}
|
||||
|
||||
if (i < len) {
|
||||
System.arraycopy(b, offset + i, buffer, n, len - i);
|
||||
}
|
||||
}
|
||||
|
||||
public byte[] digest() {
|
||||
byte[] tail = padBuffer(); // pad remaining bytes in buffer
|
||||
update(tail, 0, tail.length); // last transform of a message
|
||||
byte[] result = getResult(); // make a result out of context
|
||||
|
||||
reset(); // reset this instance for future re-use
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
public void reset() { // reset this instance for future re-use
|
||||
count = 0L;
|
||||
for (int i = 0; i < blockSize; ) {
|
||||
buffer[i++] = 0;
|
||||
}
|
||||
|
||||
resetContext();
|
||||
}
|
||||
|
||||
// methods to be implemented by concrete subclasses ------------------------
|
||||
|
||||
public abstract Object clone();
|
||||
|
||||
public abstract boolean selfTest();
|
||||
|
||||
/**
|
||||
* <p>Returns the byte array to use as padding before completing a hash
|
||||
* operation.</p>
|
||||
*
|
||||
* @return the bytes to pad the remaining bytes in the buffer before
|
||||
* completing a hash operation.
|
||||
*/
|
||||
protected abstract byte[] padBuffer();
|
||||
|
||||
/**
|
||||
* <p>Constructs the result from the contents of the current context.</p>
|
||||
*
|
||||
* @return the output of the completed hash operation.
|
||||
*/
|
||||
protected abstract byte[] getResult();
|
||||
|
||||
/** Resets the instance for future re-use. */
|
||||
protected abstract void resetContext();
|
||||
|
||||
/**
|
||||
* <p>The block digest transformation per se.</p>
|
||||
*
|
||||
* @param in the <i>blockSize</i> long block, as an array of bytes to digest.
|
||||
* @param offset the index where the data to digest is located within the
|
||||
* input buffer.
|
||||
*/
|
||||
protected abstract void transform(byte[] in, int offset);
|
||||
}
|
||||
141
core/java/src/gnu/crypto/hash/IMessageDigestStandalone.java
Normal file
141
core/java/src/gnu/crypto/hash/IMessageDigestStandalone.java
Normal file
@@ -0,0 +1,141 @@
|
||||
package gnu.crypto.hash;
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// $Id: IMessageDigestStandalone.java,v 1.1 2006/02/26 16:30:59 jrandom Exp $
|
||||
//
|
||||
// Copyright (C) 2001, 2002, Free Software Foundation, Inc.
|
||||
//
|
||||
// This file is part of GNU Crypto.
|
||||
//
|
||||
// GNU Crypto 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, or (at your option)
|
||||
// any later version.
|
||||
//
|
||||
// GNU Crypto 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 this program; see the file COPYING. If not, write to the
|
||||
//
|
||||
// Free Software Foundation Inc.,
|
||||
// 51 Franklin Street, 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.
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
/**
|
||||
* <p>The basic visible methods of any hash algorithm.</p>
|
||||
*
|
||||
* <p>A hash (or message digest) algorithm produces its output by iterating a
|
||||
* basic compression function on blocks of data.</p>
|
||||
*
|
||||
* @version $Revision: 1.1 $
|
||||
*/
|
||||
public interface IMessageDigestStandalone extends Cloneable {
|
||||
|
||||
// Constants
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Methods
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
/**
|
||||
* <p>Returns the canonical name of this algorithm.</p>
|
||||
*
|
||||
* @return the canonical name of this instance.
|
||||
*/
|
||||
String name();
|
||||
|
||||
/**
|
||||
* <p>Returns the output length in bytes of this message digest algorithm.</p>
|
||||
*
|
||||
* @return the output length in bytes of this message digest algorithm.
|
||||
*/
|
||||
int hashSize();
|
||||
|
||||
/**
|
||||
* <p>Returns the algorithm's (inner) block size in bytes.</p>
|
||||
*
|
||||
* @return the algorithm's inner block size in bytes.
|
||||
*/
|
||||
int blockSize();
|
||||
|
||||
/**
|
||||
* <p>Continues a message digest operation using the input byte.</p>
|
||||
*
|
||||
* @param b the input byte to digest.
|
||||
*/
|
||||
void update(byte b);
|
||||
|
||||
/**
|
||||
* <p>Continues a message digest operation, by filling the buffer, processing
|
||||
* data in the algorithm's HASH_SIZE-bit block(s), updating the context and
|
||||
* count, and buffering the remaining bytes in buffer for the next
|
||||
* operation.</p>
|
||||
*
|
||||
* @param in the input block.
|
||||
*/
|
||||
void update(byte[] in);
|
||||
|
||||
/**
|
||||
* <p>Continues a message digest operation, by filling the buffer, processing
|
||||
* data in the algorithm's HASH_SIZE-bit block(s), updating the context and
|
||||
* count, and buffering the remaining bytes in buffer for the next
|
||||
* operation.</p>
|
||||
*
|
||||
* @param in the input block.
|
||||
* @param offset start of meaningful bytes in input block.
|
||||
* @param length number of bytes, in input block, to consider.
|
||||
*/
|
||||
void update(byte[] in, int offset, int length);
|
||||
|
||||
/**
|
||||
* <p>Completes the message digest by performing final operations such as
|
||||
* padding and resetting the instance.</p>
|
||||
*
|
||||
* @return the array of bytes representing the hash value.
|
||||
*/
|
||||
byte[] digest();
|
||||
|
||||
/**
|
||||
* <p>Resets the current context of this instance clearing any eventually cached
|
||||
* intermediary values.</p>
|
||||
*/
|
||||
void reset();
|
||||
|
||||
/**
|
||||
* <p>A basic test. Ensures that the digest of a pre-determined message is equal
|
||||
* to a known pre-computed value.</p>
|
||||
*
|
||||
* @return <tt>true</tt> if the implementation passes a basic self-test.
|
||||
* Returns <tt>false</tt> otherwise.
|
||||
*/
|
||||
boolean selfTest();
|
||||
|
||||
/**
|
||||
* <p>Returns a clone copy of this instance.</p>
|
||||
*
|
||||
* @return a clone copy of this instance.
|
||||
*/
|
||||
Object clone();
|
||||
}
|
||||
@@ -1,7 +1,7 @@
|
||||
package gnu.crypto.hash;
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// $Id: Sha256Standalone.java,v 1.1 2006/02/26 16:30:59 jrandom Exp $
|
||||
// $Id: Sha256Standalone.java,v 1.2 2006/03/16 16:45:19 jrandom Exp $
|
||||
//
|
||||
// Copyright (C) 2003 Free Software Foundation, Inc.
|
||||
//
|
||||
@@ -59,9 +59,9 @@ package gnu.crypto.hash;
|
||||
* renamed from Sha256 to avoid conflicts with JVMs using gnu-crypto as their JCE
|
||||
* provider.
|
||||
*
|
||||
* @version $Revision: 1.1 $
|
||||
* @version $Revision: 1.2 $
|
||||
*/
|
||||
public class Sha256Standalone extends BaseHash {
|
||||
public class Sha256Standalone extends BaseHashStandalone {
|
||||
// Constants and variables
|
||||
// -------------------------------------------------------------------------
|
||||
private static final int[] k = {
|
||||
@@ -143,7 +143,7 @@ public class Sha256Standalone extends BaseHash {
|
||||
return new Sha256Standalone(this);
|
||||
}
|
||||
|
||||
// Implementation of concrete methods in BaseHash --------------------------
|
||||
// Implementation of concrete methods in BaseHashStandalone --------------------------
|
||||
|
||||
private int transformResult[] = new int[8];
|
||||
protected void transform(byte[] in, int offset) {
|
||||
|
||||
Reference in New Issue
Block a user