--- a/src/ch/ethz/ssh2/crypto/digest/MAC.java	Wed Jul 30 12:09:51 2014 -0700
+++ b/src/ch/ethz/ssh2/crypto/digest/MAC.java	Wed Jul 30 14:16:58 2014 -0700
@@ -19,68 +19,75 @@
 
     public static String[] getMacList() {
         // Higher priority first. Added SHA-2 algorithms as in RFC 6668
-        return new String[]{"hmac-sha1-96", "hmac-sha1", "hmac-md5-96", "hmac-md5", "hmac-sha2-256", "hmac-sha2-512"};
+        return new String[] {"hmac-sha1-96", "hmac-sha1", "hmac-md5-96", "hmac-md5", "hmac-sha2-256", "hmac-sha2-512"};
     }
 
     public static void checkMacList(final String[] macs) {
-        for(String m : macs) {
+        for (String m : macs) {
             getKeyLen(m);
         }
     }
 
     public static int getKeyLen(final String type) {
-        if(type.equals("hmac-sha1")) {
+        if (type.equals("hmac-sha1")) {
             return 20;
         }
-        if(type.equals("hmac-sha1-96")) {
+
+        if (type.equals("hmac-sha1-96")) {
             return 20;
         }
-        if(type.equals("hmac-md5")) {
+
+        if (type.equals("hmac-md5")) {
             return 16;
         }
-        if(type.equals("hmac-md5-96")) {
+
+        if (type.equals("hmac-md5-96")) {
             return 16;
         }
-        if(type.equals("hmac-sha2-256")) {
+
+        if (type.equals("hmac-sha2-256")) {
             return 32;
         }
-        if(type.equals("hmac-sha2-512")) {
+
+        if (type.equals("hmac-sha2-512")) {
             return 64;
         }
+
         throw new IllegalArgumentException(String.format("Unknown algorithm %s", type));
     }
 
     public MAC(final String type, final byte[] key) throws DigestException {
-        if(type.equals("hmac-sha1")) {
+        if (type.equals("hmac-sha1")) {
             mac = new HMAC(new SHA1(), key, 20);
         }
-        else if(type.equals("hmac-sha1-96")) {
+        else if (type.equals("hmac-sha1-96")) {
             mac = new HMAC(new SHA1(), key, 12);
         }
-        else if(type.equals("hmac-md5")) {
+        else if (type.equals("hmac-md5")) {
             mac = new HMAC(new MD5(), key, 16);
         }
-        else if(type.equals("hmac-md5-96")) {
+        else if (type.equals("hmac-md5-96")) {
             mac = new HMAC(new MD5(), key, 12);
         }
-        else if(type.equals("hmac-sha2-256")) {
+        else if (type.equals("hmac-sha2-256")) {
             mac = new HMAC(new SHA256(), key, 32);
         }
-        else if(type.equals("hmac-sha2-512")) {
+        else if (type.equals("hmac-sha2-512")) {
             mac = new HMAC(new SHA512(), key, 64);
         }
         else {
             throw new IllegalArgumentException(String.format("Unknown algorithm %s", type));
         }
+
         size = mac.getDigestLength();
     }
 
     public final void initMac(final int seq) {
         mac.reset();
-        mac.update((byte) (seq >> 24));
-        mac.update((byte) (seq >> 16));
-        mac.update((byte) (seq >> 8));
-        mac.update((byte) (seq));
+        mac.update((byte)(seq >> 24));
+        mac.update((byte)(seq >> 16));
+        mac.update((byte)(seq >> 8));
+        mac.update((byte)(seq));
     }
 
     public final void update(byte[] packetdata, int off, int len) {
@@ -91,7 +98,7 @@
         try {
             mac.digest(out, off);
         }
-        catch(DigestException e) {
+        catch (DigestException e) {
             throw new IOException(e);
         }
     }