head	1.6;
access;
symbols
	TIGRIS_1_1_0RC2:1.6
	TIGRIS_1_1_0RC1:1.6
	TIGRIS_1_1:1.6.0.4
	TIGRIS_1_0_8:1.6
	TIGRIS_1_0_8RC3:1.6
	TIGRIS_1_0_8RC2:1.6
	TIGRIS_1_0_8RC1:1.6
	TIGRIS_1_0_7:1.6
	TIGRIS_1_0_7RC3:1.6
	TIGRIS_1_0_7RC2:1.6
	TIGRIS_1_0_7RC1:1.6
	TIGRIS_1_0_6:1.6
	TIGRIS_1_0_6RC5:1.6
	TIGRIS_1_0_6RC4:1.6
	TIGRIS_1_0_6RC3:1.6
	TIGRIS_1_0_6RC2:1.6
	TIGRIS_1_0_6RC1:1.6
	TIGRIS_1_0_5:1.6
	TIGRIS_1_0_5RC6:1.6
	TIGRIS_1_0_5RC5:1.6
	TIGRIS_1_0_5RC4:1.6
	TIGRIS_1_0_5RC3:1.6
	TIGRIS_1_0_5RC2:1.6
	TIGRIS_1_0_5RC1:1.6
	TIGRIS_1_0_4:1.6
	TIGRIS_1_0_3:1.6
	TIGRIS_1_0_2:1.6
	TIGRIS_1_0_1:1.6
	TIGRIS_1_0:1.6.0.6
	TIGRIS_1_0_0:1.6
	TIGRIS_1_0_0_RC1:1.6.0.2
	dlr:1.1.1
	TIGRIS_0_9_2_4:1.3
	TIGRIS_0_9_2_3:1.3
	HELM_PEER_PORT_BRANCH:1.1.1.1
	TURBINE_PEER:1.5
	TIGRIS_0_9_2_1:1.5
	TIGRIS_0_9_2:1.3.0.4
	TIGRIS_0_9_0:1.3.0.2
	TIGRIS_0_8_4:1.1.0.2;
locks; strict;
comment	@# @;


1.6
date	2001.02.21.01.08.25;	author dlr;	state Exp;
branches;
next	1.5;

1.5
date	2001.01.26.18.29.09;	author edk;	state Exp;
branches
	1.5.2.1;
next	1.4;

1.4
date	2001.01.26.05.24.08;	author edk;	state dead;
branches;
next	1.3;

1.3
date	2000.12.12.18.04.45;	author edk;	state Exp;
branches;
next	1.2;

1.2
date	2000.12.12.09.01.18;	author edk;	state Exp;
branches;
next	1.1;

1.1
date	2000.11.13.21.16.53;	author edk;	state Exp;
branches
	1.1.1.1;
next	;

1.1.1.1
date	2001.02.21.00.35.21;	author dlr;	state Exp;
branches;
next	;

1.5.2.1
date	2001.01.28.01.02.19;	author dlr;	state dead;
branches;
next	1.5.2.2;

1.5.2.2
date	2001.02.01.01.35.46;	author dlr;	state Exp;
branches;
next	1.5.2.3;

1.5.2.3
date	2001.02.15.20.50.44;	author leonardr;	state Exp;
branches;
next	;


desc
@@


1.6
log
@This is the highest revision from the HELM_PEER_PORT_BRANCH.  The previous import caused too many conflicts to resolve manually
@
text
@/* ================================================================
 * Copyright (c) 2000-2001 CollabNet.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * 3. The end-user documentation included with the redistribution, if
 * any, must include the following acknowlegement: "This product includes
 * software developed by CollabNet (http://www.collab.net/)."
 * Alternately, this acknowlegement may appear in the software itself, if
 * and wherever such third-party acknowlegements normally appear.
 * 
 * 4. The hosted project names must not be used to endorse or promote
 * products derived from this software without prior written
 * permission. For written permission, please contact info@@collab.net.
 * 
 * 5. Products derived from this software may not use the "Tigris" name
 * nor may "Tigris" appear in their names without prior written
 * permission of CollabNet.
 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL COLLAB.NET OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many
 * individuals on behalf of CollabNet.
 */

package org.tigris.helm.tool;

import java.security.SecureRandom;
import java.security.NoSuchAlgorithmException;

/**
 * Generate unique random strings for authentication.  SecureRandom is
 * used to provide a reasonable degree of security; the PRNG algorithm
 * used is "SHA1PRNG", provided by Sun.
 */
public class Nonce
{
    /**
     * The default length of the generated string.  The number of bytes
     * worth of randomness is half this value (since two characters
     * are used for each byte).
     */
    public static int DEFAULT_SIZE = 32;

    /**
     * Return a nonce which is the default length: 32 characters, with
     * 16 bytes worth of randomness.
     */
    public static String buildNonce() {
        return buildNonce(DEFAULT_SIZE);
    }
    
    /**
     * Return a nonce -- a String of the specified lenght, containing
     * random data.  The number of bytes of randomness if half the length of 
     * the String.  Odd numbers will be rounded down one.
     */
    public static String buildNonce(int length) {
        SecureRandom r = null;
        try {
            r = SecureRandom.getInstance("SHA1PRNG");
        } catch (NoSuchAlgorithmException e) {
            r = new SecureRandom();
        }

        byte stuff[] = new byte[length/2];
        r.nextBytes(stuff);
        return ByteToHex.transform(stuff);
    }
}
@


1.5
log
@readding all the files as part of the process of returning to the way
things were as of tuesday
@
text
@d2 1
a2 1
 * Copyright (c) 2000 CollabNet.  All rights reserved.
d48 1
a91 1

@


1.5.2.1
log
@Porting to the Turbine Peer system.  -dlr and leonardr
@
text
@@


1.5.2.2
log
@Generate unique random strings for authentication.
@
text
@a47 1

d91 1
@


1.5.2.3
log
@Normalized copyright dates.
@
text
@d2 1
a2 1
 * Copyright (c) 2000-2001 CollabNet.  All rights reserved.
@


1.4
log
@revert this stuff to its state as of 2001/01/24 12:42:00 GMT -- with
the following exceptions, which have some different modifications so
they'll work with changes which have happened in joist:

ProjectNewsEdit.java
SkinManager.java
SkinStyleElementValueManager.java
StyleElementManager.java
StyleManager.java

it compiles.  i dunno if it works, though.
@
text
@@


1.3
log
@use the correct variable name
@
text
@@


1.2
log
@use SecureRandom to generate nonces which are reasonably secure.
@
text
@d59 1
a59 1
     * The default size of the generated string.  The number of bytes
d66 1
a66 1
     * Return a nonce which is the default size: 32 characters, with
d86 1
a86 1
        byte stuff[] = new byte[size/2];
@


1.1
log
@send out invitations with nonces during SSPAS2 (soon to be renamed)
@
text
@d48 2
a49 1
import java.util.Random;
d52 3
a54 1
 * Generate unique random strings for authentication.
d58 11
d70 19
a88 3
        // TODO : replace this horrible insecure implemation with
        // something which is actually effective.
        return String.valueOf(new Random().nextDouble());
@


1.1.1.1
log
@Replacing the HEAD with the HELM_PEER_PORT_BRANCH.
@
text
@d2 1
a2 1
 * Copyright (c) 2000-2001 CollabNet.  All rights reserved.
d48 1
a48 3

import java.security.SecureRandom;
import java.security.NoSuchAlgorithmException;
d51 1
a51 3
 * Generate unique random strings for authentication.  SecureRandom is
 * used to provide a reasonable degree of security; the PRNG algorithm
 * used is "SHA1PRNG", provided by Sun.
a54 11
    /**
     * The default length of the generated string.  The number of bytes
     * worth of randomness is half this value (since two characters
     * are used for each byte).
     */
    public static int DEFAULT_SIZE = 32;

    /**
     * Return a nonce which is the default length: 32 characters, with
     * 16 bytes worth of randomness.
     */
d56 3
a58 1
        return buildNonce(DEFAULT_SIZE);
d60 1
a60 13
    
    /**
     * Return a nonce -- a String of the specified lenght, containing
     * random data.  The number of bytes of randomness if half the length of 
     * the String.  Odd numbers will be rounded down one.
     */
    public static String buildNonce(int length) {
        SecureRandom r = null;
        try {
            r = SecureRandom.getInstance("SHA1PRNG");
        } catch (NoSuchAlgorithmException e) {
            r = new SecureRandom();
        }
a61 5
        byte stuff[] = new byte[length/2];
        r.nextBytes(stuff);
        return ByteToHex.transform(stuff);
    }
}
@


