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PlantUML is a component that allows to quickly write diagrams from text.
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | PlantUML : a free UML diagram generator
* |
* +=======================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* https://plantuml.com/patreon (only 1$ per month!)
* https://plantuml.com/liberapay (only 1€ per month!)
* https://plantuml.com/paypal
*
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the MIT License.
*
* See http://opensource.org/licenses/MIT
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* PlantUML can occasionally display sponsored or advertising messages. Those
* messages are usually generated on welcome or error images and never on
* functional diagrams.
* See https://plantuml.com/professional if you want to remove them
*
* Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
* are owned by the author of their corresponding sources code (that is, their
* textual description in PlantUML language). Those images are not covered by
* this MIT license.
*
* The generated images can then be used without any reference to the MIT license.
* It is not even necessary to stipulate that they have been generated with PlantUML,
* although this will be appreciated by the PlantUML team.
*
* There is an exception : if the textual description in PlantUML language is also covered
* by any license, then the generated images are logically covered
* by the very same license.
*
* This is the IGY distribution (Install GraphViz by Yourself).
* You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
* (see https://plantuml.com/graphviz-dot )
*
* Icons provided by OpenIconic : https://useiconic.com/open
* Archimate sprites provided by Archi : http://www.archimatetool.com
* Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
* Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
* ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
* ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
* CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
* Brotli (c) by the Brotli Authors https://github.com/google/brotli
* Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
* Twemoji (c) by Twitter at https://twemoji.twitter.com/
*
*/
package net.sourceforge.plantuml.dedication;
import net.sourceforge.plantuml.argon2.Argon2;
import net.sourceforge.plantuml.argon2.Argon2Factory;
import net.sourceforge.plantuml.argon2.model.Argon2Type;
import net.sourceforge.plantuml.utils.MTRandom;
public class Noise {
private static Argon2 argon2(byte[] buffer, byte[] salt) {
final Argon2 argon = Argon2Factory.create() //
.setType(Argon2Type.Argon2id) //
.setMemory(8) //
.setSalt(salt.clone()) //
.setIterations(50) //
.setPassword(buffer.clone());
argon.hashNow();
return argon;
}
public static String computeArgon2String(byte[] buffer, byte[] salt) {
return argon2(buffer, salt).getOutputString();
}
public static byte[] computeArgon2bytes(byte[] buffer, byte[] salt) {
return argon2(buffer, salt).getOutput();
}
public static int shortHash(byte[] buffer, byte[] salt) {
final byte hash[] = argon2(buffer, salt).getOutput();
int result = 0;
for (byte b : hash) {
final int b1 = b & 0x0F;
final int b2 = (b & 0xF0) >> 4;
result ^= b1 ^ b2;
}
return result;
}
public static void shuffle(byte[] buffer, MTRandom rnd) {
for (int i = 0; i < buffer.length; i++) {
final int r1 = rnd.nextInt();
final int r2 = rnd.nextInt();
final int a = Math.abs(r1) % buffer.length;
final int b = Math.abs(r2) % buffer.length;
final byte tmp = buffer[a];
buffer[a] = buffer[b];
buffer[b] = tmp;
}
}
public static void xor(byte[] buffer, byte[] xor) {
for (int i = 0; i < buffer.length; i++)
buffer[i] ^= xor[i % xor.length];
}
public static void xor(byte[] buffer, BlumBlumShub rnd) {
for (int i = 0; i < buffer.length; i++) {
final byte mask = (byte) (rnd.nextRnd(8) & 0xFF);
buffer[i] = (byte) (buffer[i] ^ mask);
}
}
public static byte[] reverse(byte[] buffer, int delta) {
delta = Math.abs(delta) % buffer.length;
final byte result[] = new byte[buffer.length];
for (int i = 0; i < buffer.length; i++)
result[i] = buffer[(buffer.length - 1 - i + delta) % buffer.length];
return result;
}
}