safetext.java

来自「一个java开发的非常全面的关于证书发放」· Java 代码 · 共 69 行

/*
  Name:         safeText.java
  Licensing:    LGPL

  API:          Sun (http://java.sun.com) JCE 1.2.2 API (cleanroom implementation by Bouncy Castle)
  Provider:     Bouncy Castle (http://www.bouncycastle.org)

  Disclaimer:

  COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY OF ANY KIND,
  EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE
  IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. THE ENTIRE
  RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE IS WITH YOU. SHOULD ANY COVERED CODE
  PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR)
  ASSUME THE COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY
  CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED
  HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
*/

package net.sourceforge.jcetaglib.tools;

/**
 * Object containing text that can be removed from memory by calling clearText()
 * method
 *
 * @author Gert Van Ham
 * @author [e-mail]
 * @author http://jcetaglib.sourceforge.net
 * @version 0.6 (beta) 05-nov-2002
 */

public class safeText {
    private byte[] safetext;

    /**
     * Set text
     *
     * @param safetext byte[] byte array of text
     * @exception Exception for all errors
     **/
    public void setText(byte[] safetext)
            throws Exception {
        this.safetext = safetext;
    }

    /**
     * Retrieve text
     *
     * @return StringBuffer text
     * @exception Exception for all errors
     **/
    public StringBuffer getText()
            throws Exception {
        return new StringBuffer(new String(safetext));
    }

    /**
     * Wipe text from memory
     *
     * @exception Exception for all errors
     **/
    public void clearText()
            throws Exception {
        for (int i = 0; i < safetext.length; i++) {
            safetext[i] = 0;
        }
    }
}