Delete SecureDelete.java

src/org/blueshard/cryptogx/SecureDelete.java

@@ -1,90 +0,0 @@
-package org.bytedream.cryptogx;
-
-import java.io.*;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.security.NoSuchAlgorithmException;
-import java.security.SecureRandom;
-import java.util.Random;
-import java.util.TreeSet;
-
-/**
- * <p>Class for secure delete files<p/>
- *
- * @since 1.2.0
- */
-public class SecureDelete {
-
-    public static void deleteDirectory(String directory, int iterations, byte[] buffer) throws IOException {
-        TreeSet<File> directories = new TreeSet<>();
-        Files.walk(Paths.get(directory)).map(Path::toFile).forEach(directoryFile -> {
-            if (directoryFile.isDirectory()) {
-                directories.add(directoryFile);
-            } else {
-                try {
-                    SecureDelete.deleteFile(directoryFile, iterations, buffer);
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-                while (directoryFile.exists()) {
-                    if (directoryFile.delete()) {
-                        break;
-                    }
-                }
-            }
-        });
-
-        File deleteDirectory = directories.last();
-        while (deleteDirectory != null) {
-            deleteDirectory.delete();
-
-            while (deleteDirectory.delete()) {
-                try {
-                    Thread.sleep(100);
-                } catch (InterruptedException e) {
-                    e.printStackTrace();
-                }
-            }
-
-            deleteDirectory = directories.lower(deleteDirectory);
-        }
-    }
-
-    /**
-     * <p>Overwrites the file {@param iterations} times line by line with random bytes (minimal size {@param minFileSize}; maximal size {@param maxFileSize}) and delete it</p>
-     *
-     * @param file that should be deleted
-     * @param iterations how many times the file should be overwritten before it gets deleted
-     * @return if the file could be deleted
-     * @throws IOException
-     *
-     * @since 1.12.0
-     */
-    public static void deleteFile(File file, int iterations, byte[] buffer) throws IOException {
-        SecureRandom secureRandom = new SecureRandom();
-        RandomAccessFile raf = new RandomAccessFile(file, "rws");
-        for (int i=0; i<iterations; i++) {
-            long length = file.length();
-            raf.seek(0);
-            raf.getFilePointer();
-            int pos = 0;
-            while (pos < length) {
-                secureRandom.nextBytes(buffer);
-                raf.write(buffer);
-                pos += buffer.length;
-            }
-
-        }
-        raf.close();
-
-        while (file.delete()) {
-            try {
-                Thread.sleep(100);
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-}