--- a/src/ch/ethz/ssh2/crypto/digest/HMAC.java	Wed Jul 30 13:38:04 2014 -0700
+++ b/src/ch/ethz/ssh2/crypto/digest/HMAC.java	Wed Jul 30 14:21:50 2014 -0700
@@ -8,90 +8,76 @@
 
 /**
  * HMAC.
- * 
+ *
  * @author Christian Plattner
  * @version 2.50, 03/15/10
  */
-public final class HMAC implements Digest
-{
-	Digest md;
-	byte[] k_xor_ipad;
-	byte[] k_xor_opad;
+public final class HMAC implements Digest {
+    Digest md;
+    byte[] k_xor_ipad;
+    byte[] k_xor_opad;
 
-	byte[] tmp;
+    byte[] tmp;
 
-	int size;
+    int size;
 
-	public HMAC(Digest md, byte[] key, int size) throws DigestException {
-		this.md = md;
-		this.size = size;
-
-		tmp = new byte[md.getDigestLength()];
-
-		final int BLOCKSIZE = 64;
+    public HMAC(Digest md, byte[] key, int size) throws DigestException {
+        this.md = md;
+        this.size = size;
+        tmp = new byte[md.getDigestLength()];
+        final int BLOCKSIZE = 64;
+        k_xor_ipad = new byte[BLOCKSIZE];
+        k_xor_opad = new byte[BLOCKSIZE];
 
-		k_xor_ipad = new byte[BLOCKSIZE];
-		k_xor_opad = new byte[BLOCKSIZE];
-
-		if (key.length > BLOCKSIZE)
-		{
-			md.reset();
-			md.update(key);
-			md.digest(tmp);
-			key = tmp;
-		}
+        if (key.length > BLOCKSIZE) {
+            md.reset();
+            md.update(key);
+            md.digest(tmp);
+            key = tmp;
+        }
 
-		System.arraycopy(key, 0, k_xor_ipad, 0, key.length);
-		System.arraycopy(key, 0, k_xor_opad, 0, key.length);
+        System.arraycopy(key, 0, k_xor_ipad, 0, key.length);
+        System.arraycopy(key, 0, k_xor_opad, 0, key.length);
 
-		for (int i = 0; i < BLOCKSIZE; i++)
-		{
-			k_xor_ipad[i] ^= 0x36;
-			k_xor_opad[i] ^= 0x5C;
-		}
-		md.update(k_xor_ipad);
-	}
+        for (int i = 0; i < BLOCKSIZE; i++) {
+            k_xor_ipad[i] ^= 0x36;
+            k_xor_opad[i] ^= 0x5C;
+        }
+
+        md.update(k_xor_ipad);
+    }
 
-	public final int getDigestLength()
-	{
-		return size;
-	}
+    public final int getDigestLength() {
+        return size;
+    }
 
-	public final void update(byte b)
-	{
-		md.update(b);
-	}
+    public final void update(byte b) {
+        md.update(b);
+    }
 
-	public final void update(byte[] b)
-	{
-		md.update(b);
-	}
+    public final void update(byte[] b) {
+        md.update(b);
+    }
 
-	public final void update(byte[] b, int off, int len)
-	{
-		md.update(b, off, len);
-	}
+    public final void update(byte[] b, int off, int len) {
+        md.update(b, off, len);
+    }
 
-	public final void reset()
-	{
-		md.reset();
-		md.update(k_xor_ipad);
-	}
+    public final void reset() {
+        md.reset();
+        md.update(k_xor_ipad);
+    }
 
-	public final void digest(byte[] out) throws DigestException {
-		digest(out, 0);
-	}
+    public final void digest(byte[] out) throws DigestException {
+        digest(out, 0);
+    }
 
-	public final void digest(byte[] out, int off) throws DigestException {
-		md.digest(tmp);
-
-		md.update(k_xor_opad);
-		md.update(tmp);
-
-		md.digest(tmp);
-
-		System.arraycopy(tmp, 0, out, off, size);
-
-		md.update(k_xor_ipad);
-	}
+    public final void digest(byte[] out, int off) throws DigestException {
+        md.digest(tmp);
+        md.update(k_xor_opad);
+        md.update(tmp);
+        md.digest(tmp);
+        System.arraycopy(tmp, 0, out, off, size);
+        md.update(k_xor_ipad);
+    }
 }