org.broadleafcommerce.common.security.RandomGenerator Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of broadleaf-common Show documentation
Show all versions of broadleaf-common Show documentation
A collection of classes shared by broadleaf profile, cms, admin, and core.
/**
* The OWASP CSRFGuard Project, BSD License
* Eric Sheridan ([email protected]), Copyright (c) 2011
* 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. Neither the name of OWASP nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS 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 THE COPYRIGHT HOLDER OR 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.
*/
package org.broadleafcommerce.common.security;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
public final class RandomGenerator {
private final static char[] CHARSET = new char[] { 'A', 'B', 'C', 'D', 'E',
'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R',
'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '0', '1', '2', '3', '4',
'5', '6', '7', '8', '9' };
private RandomGenerator() {
/**
* Intentionally blank to force static usage
*/
}
@Override
public Object clone() throws CloneNotSupportedException {
throw new CloneNotSupportedException();
}
public static String generateRandomId(String prng, int len) throws NoSuchAlgorithmException {
return generateRandomId(SecureRandom.getInstance(prng), len);
}
public static String generateRandomId(SecureRandom sr, int len) {
StringBuilder sb = new StringBuilder();
for (int i = 1; i < len + 1; i++) {
int index = sr.nextInt(CHARSET.length);
char c = CHARSET[index];
sb.append(c);
if ((i % 4) == 0 && i != 0 && i < len) {
sb.append('-');
}
}
return sb.toString();
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy