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-rw-r--r--signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/symmetric/CFB8Mode.as61
1 files changed, 61 insertions, 0 deletions
diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/symmetric/CFB8Mode.as b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/symmetric/CFB8Mode.as
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index 0000000..9baa284
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/symmetric/CFB8Mode.as
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+/**
+ * CFB8Mode
+ *
+ * An ActionScript 3 implementation of the CFB-8 confidentiality mode
+ * Copyright (c) 2007 Henri Torgemane
+ *
+ * See LICENSE.txt for full license information.
+ */
+package com.hurlant.crypto.symmetric
+{
+ import com.hurlant.crypto.tests.TestCase;
+ import flash.utils.ByteArray;
+
+ /**
+ *
+ * Note: The constructor accepts an optional padding argument, but ignores it otherwise.
+ */
+ public class CFB8Mode extends IVMode implements IMode
+ {
+ public function CFB8Mode(key:ISymmetricKey, padding:IPad = null) {
+ super(key, null);
+ }
+
+ public function encrypt(src:ByteArray):void {
+ var vector:ByteArray = getIV4e();
+ var tmp:ByteArray = new ByteArray;
+ for (var i:uint=0;i<src.length;i++) {
+ tmp.position = 0;
+ tmp.writeBytes(vector);
+ key.encrypt(vector);
+ src[i] ^= vector[0];
+ // rotate
+ for (var j:uint=0;j<blockSize-1;j++) {
+ vector[j] = tmp[j+1];
+ }
+ vector[blockSize-1] = src[i];
+ }
+ }
+
+ public function decrypt(src:ByteArray):void {
+ var vector:ByteArray = getIV4d();
+ var tmp:ByteArray = new ByteArray;
+ for (var i:uint=0;i<src.length;i++) {
+ var c:uint = src[i];
+ tmp.position = 0;
+ tmp.writeBytes(vector); // I <- tmp
+ key.encrypt(vector); // O <- vector
+ src[i] ^= vector[0];
+ // rotate
+ for (var j:uint=0;j<blockSize-1;j++) {
+ vector[j] = tmp[j+1];
+ }
+ vector[blockSize-1] = c;
+ }
+
+ }
+ public function toString():String {
+ return key.toString()+"-cfb8";
+ }
+ }
+} \ No newline at end of file