From b60df56157ee1fd0bd4938799bac05a62fda91a1 Mon Sep 17 00:00:00 2001
From: lookshe <github@lookshe.org>
Date: Sat, 14 Mar 2015 20:45:20 +0100
Subject: initial commit from working version

---
 .../flash-src/com/hurlant/crypto/hash/MAC.as       | 137 +++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100755 signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/hash/MAC.as

(limited to 'signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/hash/MAC.as')

diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/hash/MAC.as b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/hash/MAC.as
new file mode 100755
index 0000000..0815d6c
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/hash/MAC.as
@@ -0,0 +1,137 @@
+/**
+ * MAC
+ * 
+ * An ActionScript 3 implementation of MAC, Message Authentication Code
+ * for use with SSL 3.0.
+ * Loosely copyrighted by Bobby Parker.
+ * As3crypto copyrighted by Henri Torgemane.
+ * 
+ * See LICENSE.txt for full license information.
+ */
+package com.hurlant.crypto.hash
+{
+	import flash.utils.ByteArray;
+	import com.hurlant.util.Hex;
+	
+	public class MAC implements IHMAC
+	{
+		private var hash:IHash;
+		private var bits:uint;
+		private var pad_1:ByteArray;
+		private var pad_2:ByteArray;
+		private var innerHash:ByteArray;
+		private var outerHash:ByteArray;
+		private var outerKey:ByteArray;
+		private var innerKey:ByteArray;
+		/**
+		 * Create a MAC object (for SSL 3.0 ) and 
+		 * optionally a number of bits to return. 
+		 * The MAC will be truncated to that size if needed.
+		 */
+		public function MAC(hash:IHash, bits:uint=0) {
+			this.hash = hash;
+			this.bits = bits;
+			innerHash = new ByteArray();
+			outerHash = new ByteArray();
+			innerKey = new ByteArray();
+			outerKey = new ByteArray();
+
+
+			if (hash != null) { 
+				var pad_size:int = hash.getPadSize();
+				pad_1 = new ByteArray();
+				pad_2 = new ByteArray();
+			
+				for (var x:int = 0; x < pad_size; x++) {
+					pad_1.writeByte(0x36);
+					pad_2.writeByte(0x5c);
+				}
+			}
+		}
+		
+		public function setPadSize(pad_size:int) : void {	}
+		
+		public function getHashSize():uint {
+			if (bits!=0) {
+				return bits/8;
+			} else {
+				return hash.getHashSize();
+			}
+		}
+		
+		
+		/**
+		 * Compute a MAC using a key and some data.
+		 * 
+		 */ 
+		public function compute(key:ByteArray, data:ByteArray):ByteArray {
+			// take that incoming key and do hash(key + pad_2 + hash(key + pad_1 + sequence + length + record)
+			// note that data =  (sequence + type + length + record)
+
+		 	if (pad_1 == null) {
+		 		var pad_size:int = hash.getPadSize();
+				pad_1 = new ByteArray();
+				pad_2 = new ByteArray();
+			
+				for (var x:int = 0; x < pad_size; x++) {
+					pad_1.writeByte(0x36);
+					pad_2.writeByte(0x5c);
+				}
+		 	}
+		 	
+		 	// Do some preliminary checking on stuff
+		 	/* 
+		 	if (key.length > hash.getInputSize()) {
+		 		hashKey = hash.hash(key); 
+		 	} else {
+		 		hashKey = new ByteArray;
+		 		hashKey.writeBytes(key); 
+		 	}
+		 	
+		 	while (hashKey.length < hash.getInputSize() ) {
+		 		hashKey[hashKey.length] = 0;
+		 	} */
+		 	// Henri's conventions work just fine here..
+		 	
+		 	innerKey.length = 0;
+			outerKey.length = 0;
+		 	// trace("MAC Key: " + Hex.fromArray(key));
+			// trace("Key Length: " + key.length);
+			// trace("Pad_1 : " + Hex.fromArray(pad_1));
+		 	// inner hash calc
+		 	innerKey.writeBytes(key);
+	 		innerKey.writeBytes(pad_1);
+		 	innerKey.writeBytes(data);
+		 	// trace("MAC Inner Key: " + Hex.fromArray(innerKey));
+			
+		 	innerHash = hash.hash(innerKey);
+		 	// trace("MAC Inner Hash: " + Hex.fromArray(innerHash));
+			
+			// outer hash calc		 	
+		 	outerKey.writeBytes(key);
+		 	outerKey.writeBytes(pad_2);
+		 	outerKey.writeBytes(innerHash);
+			
+		 	// trace("MAC Outer Key: " + Hex.fromArray(outerKey));
+		 	outerHash = hash.hash(outerKey);
+		 	
+		 	
+		 	if (bits > 0 && bits < 8*outerHash.length) {
+		 		outerHash.length = bits/8;
+		 	}
+		 	
+		 	// trace("MAC for record: " + Hex.fromArray(outerHash));		 	
+		 	return outerHash;
+
+		}
+		
+		public function dispose():void {
+			hash = null;
+			bits = 0;
+		}
+		public function toString():String {
+			return "mac-"+(bits>0?bits+"-":"")+hash.toString();
+		}
+		
+	}
+}
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