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Diffstat (limited to 'signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/symmetric/CFBMode.as')
-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/CFBMode.as64
1 files changed, 64 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/CFBMode.as b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/symmetric/CFBMode.as
new file mode 100644
index 0000000..7b748b9
--- /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/CFBMode.as
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+/**
+ * CFBMode
+ *
+ * An ActionScript 3 implementation of the CFB confidentiality mode
+ * Copyright (c) 2007 Henri Torgemane
+ *
+ * See LICENSE.txt for full license information.
+ */
+package com.hurlant.crypto.symmetric
+{
+ import flash.utils.ByteArray;
+
+ /**
+ * This is the "full" CFB.
+ * CFB1 and CFB8 are hiding somewhere else.
+ *
+ * Note: The constructor accepts an optional padding argument, but ignores it otherwise.
+ */
+ public class CFBMode extends IVMode implements IMode
+ {
+
+ public function CFBMode(key:ISymmetricKey, padding:IPad = null) {
+ super(key,null);
+ }
+
+ public function encrypt(src:ByteArray):void
+ {
+ var l:uint = src.length;
+ var vector:ByteArray = getIV4e();
+ for (var i:uint=0;i<src.length;i+=blockSize) {
+ key.encrypt(vector);
+ var chunk:uint = (i+blockSize<l)?blockSize:l-i;
+ for (var j:uint=0;j<chunk;j++) {
+ src[i+j] ^= vector[j];
+ }
+ vector.position=0;
+ vector.writeBytes(src, i, chunk);
+ }
+ }
+
+ public function decrypt(src:ByteArray):void
+ {
+ var l:uint = src.length;
+ var vector:ByteArray = getIV4d();
+ var tmp:ByteArray = new ByteArray;
+ for (var i:uint=0;i<src.length;i+=blockSize) {
+ key.encrypt(vector);
+ var chunk:uint = (i+blockSize<l)?blockSize:l-i;
+ tmp.position=0;
+ tmp.writeBytes(src, i, chunk);
+ for (var j:uint=0;j<chunk;j++) {
+ src[i+j] ^= vector[j];
+ }
+ vector.position=0;
+ vector.writeBytes(tmp);
+ }
+ }
+
+ public function toString():String {
+ return key.toString()+"-cfb";
+ }
+
+ }
+} \ No newline at end of file