From 484d0a9e924f666203244b650aded131db82715f Mon Sep 17 00:00:00 2001 From: Robert von Burg Date: Fri, 6 Oct 2017 10:41:08 +0200 Subject: [PATCH] [Minor] Removed unnecessary class --- li.strolch.privilege/src/main/java/Temp.java | 80 -------------------- 1 file changed, 80 deletions(-) delete mode 100644 li.strolch.privilege/src/main/java/Temp.java diff --git a/li.strolch.privilege/src/main/java/Temp.java b/li.strolch.privilege/src/main/java/Temp.java deleted file mode 100644 index b1c924302..000000000 --- a/li.strolch.privilege/src/main/java/Temp.java +++ /dev/null @@ -1,80 +0,0 @@ -import java.io.UnsupportedEncodingException; -import java.security.SecureRandom; -import java.text.MessageFormat; - -import javax.crypto.SecretKey; -import javax.crypto.SecretKeyFactory; -import javax.crypto.spec.PBEKeySpec; - -public class Temp { - - public static void main(String[] args) throws Exception { - - for (int i = 0; i < 10; i++) { - - long start = System.nanoTime(); - - byte[] bytes = new byte[16]; - SecureRandom secureRandom = new SecureRandom(); - secureRandom.nextBytes(bytes); - String token = getHexString(bytes); - System.out.println(token); - - String algorithm = "PBKDF2WithHmacSHA512"; - char[] password = "admin".toCharArray(); - byte[] salt = "admin".getBytes(); - int iterations = 10000; - int keyLength = 256; - - SecretKeyFactory skf = SecretKeyFactory.getInstance(algorithm); - PBEKeySpec spec = new PBEKeySpec(password, salt, iterations, keyLength); - SecretKey key = skf.generateSecret(spec); - byte[] res = key.getEncoded(); - - System.out.println("Password hash: " + getHexString(res)); - System.out.println("Salt: " + getHexString(salt)); - - long end = System.nanoTime(); - System.out.println("Took: " + formatNanoDuration(end - start)); - } - } - - public static String getHexString(byte[] raw) throws RuntimeException { - try { - byte[] hex = new byte[2 * raw.length]; - int index = 0; - - for (byte b : raw) { - int v = b & 0xFF; - hex[index++] = HEX_CHAR_TABLE[v >>> 4]; - hex[index++] = HEX_CHAR_TABLE[v & 0xF]; - } - - return new String(hex, "ASCII"); //$NON-NLS-1$ - - } catch (UnsupportedEncodingException e) { - String msg = MessageFormat.format("Something went wrong while converting to HEX: {0}", e.getMessage()); //$NON-NLS-1$ - throw new RuntimeException(msg, e); - } - } - - public static String formatNanoDuration(final long nanos) { - if (nanos >= 3600000000000L) { - return String.format("%.0fh", (nanos / 3600000000000.0D)); //$NON-NLS-1$ - } else if (nanos >= 60000000000L) { - return String.format("%.0fm", (nanos / 60000000000.0D)); //$NON-NLS-1$ - } else if (nanos >= 1000000000L) { - return String.format("%.0fs", (nanos / 1000000000.0D)); //$NON-NLS-1$ - } else if (nanos >= 1000000L) { - return String.format("%.0fms", (nanos / 1000000.0D)); //$NON-NLS-1$ - } else if (nanos >= 1000L) { - return String.format("%.0fus", (nanos / 1000.0D)); //$NON-NLS-1$ - } else { - return nanos + "ns"; //$NON-NLS-1$ - } - } - - private static final byte[] HEX_CHAR_TABLE = { (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4', - (byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', - (byte) 'e', (byte) 'f' }; -}