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gnu.java.security.util

Class PRNG

public class PRNG
extends Object
A useful hash-based (SHA) pseudo-random number generator used throughout this library.
See Also:
MDGenerator

Method Summary

static PRNG
getInstance()
void
nextBytes(byte[] buffer)
Completely fills the designated buffer with random data generated by the underlying delegate.
void
nextBytes(byte[] buffer, int offset, int length)
Fills the designated buffer, starting from byte at position offset with, at most, length bytes of random data generated by the underlying delegate.

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getInstance

public static final PRNG getInstance()

nextBytes

public void nextBytes(byte[] buffer)
Completely fills the designated buffer with random data generated by the underlying delegate.
Parameters:
buffer - the place holder of random bytes generated by the underlying delegate. On output, the contents of buffer are replaced with pseudo-random data, iff the buffer size is not zero.

nextBytes

public void nextBytes(byte[] buffer,
                      int offset,
                      int length)
Fills the designated buffer, starting from byte at position offset with, at most, length bytes of random data generated by the underlying delegate.
See Also:
IRandom.nextBytes(byte[],int,int)
PRNG.java -- A Utility methods for default source of randomness Copyright (C) 2006 Free Software Foundation, Inc. This file is 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, 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; 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.

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