When upgrading the user from a non-srp account to an SRP account, the client must send the server the password. I wasn't happy about doing this

in plaintext, so I've incorporated slowAES on both the client and the server to encrypt the password before it is sent, using the key generated 
in the first SRP transaction.

1 files changed, 771 insertions, 0 deletions

diff --git a/javascript/aes.js b/javascript/aes.js
new file mode 100644
index 0000000..5682618
--- /dev/null
+++ b/javascript/aes.js
@@ -0,0 +1,771 @@
+/*
+ * aes.js: implements AES - Advanced Encryption Standard
+ * from the SlowAES project, http://code.google.com/p/slowaes/
+ * 
+ * Copyright (c) 2008 	Josh Davis ( http://www.josh-davis.org ),
+ *						Mark Percival ( http://mpercival.com ),
+ *
+ * Ported from C code written by Laurent Haan ( http://www.progressive-coding.com )
+ * 
+ * Licensed under the Apache License, Version 2.0
+ * http://www.apache.org/licenses/
+ */
+
+var slowAES = {
+	/*
+	 * START AES SECTION
+	 */
+	aes:{
+		// structure of valid key sizes
+		keySize:{
+			SIZE_128:16,
+			SIZE_192:24,
+			SIZE_256:32
+		},
+		
+		// Rijndael S-box
+		sbox:[
+		0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
+		0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
+		0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
+		0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
+		0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
+		0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
+		0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
+		0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
+		0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
+		0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
+		0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
+		0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
+		0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
+		0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
+		0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
+		0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 ],
+		
+		// Rijndael Inverted S-box
+		rsbox:
+		[ 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
+		, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
+		, 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
+		, 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
+		, 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
+		, 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
+		, 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
+		, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
+		, 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
+		, 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
+		, 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
+		, 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
+		, 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
+		, 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
+		, 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
+		, 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d ],
+		
+		/* rotate the word eight bits to the left */
+		rotate:function(word)
+		{
+			var c = word[0];
+			for (var i = 0; i < 3; i++)
+				word[i] = word[i+1];
+			word[3] = c;
+			
+			return word;
+		},
+		
+		// Rijndael Rcon
+		Rcon:[
+		0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8,
+		0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3,
+		0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f,
+		0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d,
+		0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab,
+		0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d,
+		0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25,
+		0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01,
+		0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d,
+		0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa,
+		0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a,
+		0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02,
+		0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a,
+		0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef,
+		0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94,
+		0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04,
+		0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f,
+		0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5,
+		0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33,
+		0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb ],
+
+		G2X: [
+		0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16,
+		0x18, 0x1a, 0x1c, 0x1e, 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
+		0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e, 0x40, 0x42, 0x44, 0x46,
+		0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
+		0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e, 0x70, 0x72, 0x74, 0x76,
+		0x78, 0x7a, 0x7c, 0x7e, 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e,
+		0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e, 0xa0, 0xa2, 0xa4, 0xa6,
+		0xa8, 0xaa, 0xac, 0xae, 0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
+		0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, 0xd2, 0xd4, 0xd6,
+		0xd8, 0xda, 0xdc, 0xde, 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee,
+		0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe, 0x1b, 0x19, 0x1f, 0x1d,
+		0x13, 0x11, 0x17, 0x15, 0x0b, 0x09, 0x0f, 0x0d, 0x03, 0x01, 0x07, 0x05,
+		0x3b, 0x39, 0x3f, 0x3d, 0x33, 0x31, 0x37, 0x35, 0x2b, 0x29, 0x2f, 0x2d,
+		0x23, 0x21, 0x27, 0x25, 0x5b, 0x59, 0x5f, 0x5d, 0x53, 0x51, 0x57, 0x55,
+		0x4b, 0x49, 0x4f, 0x4d, 0x43, 0x41, 0x47, 0x45, 0x7b, 0x79, 0x7f, 0x7d,
+		0x73, 0x71, 0x77, 0x75, 0x6b, 0x69, 0x6f, 0x6d, 0x63, 0x61, 0x67, 0x65,
+		0x9b, 0x99, 0x9f, 0x9d, 0x93, 0x91, 0x97, 0x95, 0x8b, 0x89, 0x8f, 0x8d,
+		0x83, 0x81, 0x87, 0x85, 0xbb, 0xb9, 0xbf, 0xbd, 0xb3, 0xb1, 0xb7, 0xb5,
+		0xab, 0xa9, 0xaf, 0xad, 0xa3, 0xa1, 0xa7, 0xa5, 0xdb, 0xd9, 0xdf, 0xdd,
+		0xd3, 0xd1, 0xd7, 0xd5, 0xcb, 0xc9, 0xcf, 0xcd, 0xc3, 0xc1, 0xc7, 0xc5,
+		0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed,
+		0xe3, 0xe1, 0xe7, 0xe5
+		],
+
+		G3X: [
+		0x00, 0x03, 0x06, 0x05, 0x0c, 0x0f, 0x0a, 0x09, 0x18, 0x1b, 0x1e, 0x1d,
+		0x14, 0x17, 0x12, 0x11, 0x30, 0x33, 0x36, 0x35, 0x3c, 0x3f, 0x3a, 0x39,
+		0x28, 0x2b, 0x2e, 0x2d, 0x24, 0x27, 0x22, 0x21, 0x60, 0x63, 0x66, 0x65,
+		0x6c, 0x6f, 0x6a, 0x69, 0x78, 0x7b, 0x7e, 0x7d, 0x74, 0x77, 0x72, 0x71,
+		0x50, 0x53, 0x56, 0x55, 0x5c, 0x5f, 0x5a, 0x59, 0x48, 0x4b, 0x4e, 0x4d,
+		0x44, 0x47, 0x42, 0x41, 0xc0, 0xc3, 0xc6, 0xc5, 0xcc, 0xcf, 0xca, 0xc9,
+		0xd8, 0xdb, 0xde, 0xdd, 0xd4, 0xd7, 0xd2, 0xd1, 0xf0, 0xf3, 0xf6, 0xf5,
+		0xfc, 0xff, 0xfa, 0xf9, 0xe8, 0xeb, 0xee, 0xed, 0xe4, 0xe7, 0xe2, 0xe1,
+		0xa0, 0xa3, 0xa6, 0xa5, 0xac, 0xaf, 0xaa, 0xa9, 0xb8, 0xbb, 0xbe, 0xbd,
+		0xb4, 0xb7, 0xb2, 0xb1, 0x90, 0x93, 0x96, 0x95, 0x9c, 0x9f, 0x9a, 0x99,
+		0x88, 0x8b, 0x8e, 0x8d, 0x84, 0x87, 0x82, 0x81, 0x9b, 0x98, 0x9d, 0x9e,
+		0x97, 0x94, 0x91, 0x92, 0x83, 0x80, 0x85, 0x86, 0x8f, 0x8c, 0x89, 0x8a,
+		0xab, 0xa8, 0xad, 0xae, 0xa7, 0xa4, 0xa1, 0xa2, 0xb3, 0xb0, 0xb5, 0xb6,
+		0xbf, 0xbc, 0xb9, 0xba, 0xfb, 0xf8, 0xfd, 0xfe, 0xf7, 0xf4, 0xf1, 0xf2,
+		0xe3, 0xe0, 0xe5, 0xe6, 0xef, 0xec, 0xe9, 0xea, 0xcb, 0xc8, 0xcd, 0xce,
+		0xc7, 0xc4, 0xc1, 0xc2, 0xd3, 0xd0, 0xd5, 0xd6, 0xdf, 0xdc, 0xd9, 0xda,
+		0x5b, 0x58, 0x5d, 0x5e, 0x57, 0x54, 0x51, 0x52, 0x43, 0x40, 0x45, 0x46,
+		0x4f, 0x4c, 0x49, 0x4a, 0x6b, 0x68, 0x6d, 0x6e, 0x67, 0x64, 0x61, 0x62,
+		0x73, 0x70, 0x75, 0x76, 0x7f, 0x7c, 0x79, 0x7a, 0x3b, 0x38, 0x3d, 0x3e,
+		0x37, 0x34, 0x31, 0x32, 0x23, 0x20, 0x25, 0x26, 0x2f, 0x2c, 0x29, 0x2a,
+		0x0b, 0x08, 0x0d, 0x0e, 0x07, 0x04, 0x01, 0x02, 0x13, 0x10, 0x15, 0x16,
+		0x1f, 0x1c, 0x19, 0x1a
+		],
+
+		G9X: [
+		0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f, 0x48, 0x41, 0x5a, 0x53,
+		0x6c, 0x65, 0x7e, 0x77, 0x90, 0x99, 0x82, 0x8b, 0xb4, 0xbd, 0xa6, 0xaf,
+		0xd8, 0xd1, 0xca, 0xc3, 0xfc, 0xf5, 0xee, 0xe7, 0x3b, 0x32, 0x29, 0x20,
+		0x1f, 0x16, 0x0d, 0x04, 0x73, 0x7a, 0x61, 0x68, 0x57, 0x5e, 0x45, 0x4c,
+		0xab, 0xa2, 0xb9, 0xb0, 0x8f, 0x86, 0x9d, 0x94, 0xe3, 0xea, 0xf1, 0xf8,
+		0xc7, 0xce, 0xd5, 0xdc, 0x76, 0x7f, 0x64, 0x6d, 0x52, 0x5b, 0x40, 0x49,
+		0x3e, 0x37, 0x2c, 0x25, 0x1a, 0x13, 0x08, 0x01, 0xe6, 0xef, 0xf4, 0xfd,
+		0xc2, 0xcb, 0xd0, 0xd9, 0xae, 0xa7, 0xbc, 0xb5, 0x8a, 0x83, 0x98, 0x91,
+		0x4d, 0x44, 0x5f, 0x56, 0x69, 0x60, 0x7b, 0x72, 0x05, 0x0c, 0x17, 0x1e,
+		0x21, 0x28, 0x33, 0x3a, 0xdd, 0xd4, 0xcf, 0xc6, 0xf9, 0xf0, 0xeb, 0xe2,
+		0x95, 0x9c, 0x87, 0x8e, 0xb1, 0xb8, 0xa3, 0xaa, 0xec, 0xe5, 0xfe, 0xf7,
+		0xc8, 0xc1, 0xda, 0xd3, 0xa4, 0xad, 0xb6, 0xbf, 0x80, 0x89, 0x92, 0x9b,
+		0x7c, 0x75, 0x6e, 0x67, 0x58, 0x51, 0x4a, 0x43, 0x34, 0x3d, 0x26, 0x2f,
+		0x10, 0x19, 0x02, 0x0b, 0xd7, 0xde, 0xc5, 0xcc, 0xf3, 0xfa, 0xe1, 0xe8,
+		0x9f, 0x96, 0x8d, 0x84, 0xbb, 0xb2, 0xa9, 0xa0, 0x47, 0x4e, 0x55, 0x5c,
+		0x63, 0x6a, 0x71, 0x78, 0x0f, 0x06, 0x1d, 0x14, 0x2b, 0x22, 0x39, 0x30,
+		0x9a, 0x93, 0x88, 0x81, 0xbe, 0xb7, 0xac, 0xa5, 0xd2, 0xdb, 0xc0, 0xc9,
+		0xf6, 0xff, 0xe4, 0xed, 0x0a, 0x03, 0x18, 0x11, 0x2e, 0x27, 0x3c, 0x35,
+		0x42, 0x4b, 0x50, 0x59, 0x66, 0x6f, 0x74, 0x7d, 0xa1, 0xa8, 0xb3, 0xba,
+		0x85, 0x8c, 0x97, 0x9e, 0xe9, 0xe0, 0xfb, 0xf2, 0xcd, 0xc4, 0xdf, 0xd6,
+		0x31, 0x38, 0x23, 0x2a, 0x15, 0x1c, 0x07, 0x0e, 0x79, 0x70, 0x6b, 0x62,
+		0x5d, 0x54, 0x4f, 0x46
+		],
+
+		GBX: [
+		0x00, 0x0b, 0x16, 0x1d, 0x2c, 0x27, 0x3a, 0x31, 0x58, 0x53, 0x4e, 0x45,
+		0x74, 0x7f, 0x62, 0x69, 0xb0, 0xbb, 0xa6, 0xad, 0x9c, 0x97, 0x8a, 0x81,
+		0xe8, 0xe3, 0xfe, 0xf5, 0xc4, 0xcf, 0xd2, 0xd9, 0x7b, 0x70, 0x6d, 0x66,
+		0x57, 0x5c, 0x41, 0x4a, 0x23, 0x28, 0x35, 0x3e, 0x0f, 0x04, 0x19, 0x12,
+		0xcb, 0xc0, 0xdd, 0xd6, 0xe7, 0xec, 0xf1, 0xfa, 0x93, 0x98, 0x85, 0x8e,
+		0xbf, 0xb4, 0xa9, 0xa2, 0xf6, 0xfd, 0xe0, 0xeb, 0xda, 0xd1, 0xcc, 0xc7,
+		0xae, 0xa5, 0xb8, 0xb3, 0x82, 0x89, 0x94, 0x9f, 0x46, 0x4d, 0x50, 0x5b,
+		0x6a, 0x61, 0x7c, 0x77, 0x1e, 0x15, 0x08, 0x03, 0x32, 0x39, 0x24, 0x2f,
+		0x8d, 0x86, 0x9b, 0x90, 0xa1, 0xaa, 0xb7, 0xbc, 0xd5, 0xde, 0xc3, 0xc8,
+		0xf9, 0xf2, 0xef, 0xe4, 0x3d, 0x36, 0x2b, 0x20, 0x11, 0x1a, 0x07, 0x0c,
+		0x65, 0x6e, 0x73, 0x78, 0x49, 0x42, 0x5f, 0x54, 0xf7, 0xfc, 0xe1, 0xea,
+		0xdb, 0xd0, 0xcd, 0xc6, 0xaf, 0xa4, 0xb9, 0xb2, 0x83, 0x88, 0x95, 0x9e,
+		0x47, 0x4c, 0x51, 0x5a, 0x6b, 0x60, 0x7d, 0x76, 0x1f, 0x14, 0x09, 0x02,
+		0x33, 0x38, 0x25, 0x2e, 0x8c, 0x87, 0x9a, 0x91, 0xa0, 0xab, 0xb6, 0xbd,
+		0xd4, 0xdf, 0xc2, 0xc9, 0xf8, 0xf3, 0xee, 0xe5, 0x3c, 0x37, 0x2a, 0x21,
+		0x10, 0x1b, 0x06, 0x0d, 0x64, 0x6f, 0x72, 0x79, 0x48, 0x43, 0x5e, 0x55,
+		0x01, 0x0a, 0x17, 0x1c, 0x2d, 0x26, 0x3b, 0x30, 0x59, 0x52, 0x4f, 0x44,
+		0x75, 0x7e, 0x63, 0x68, 0xb1, 0xba, 0xa7, 0xac, 0x9d, 0x96, 0x8b, 0x80,
+		0xe9, 0xe2, 0xff, 0xf4, 0xc5, 0xce, 0xd3, 0xd8, 0x7a, 0x71, 0x6c, 0x67,
+		0x56, 0x5d, 0x40, 0x4b, 0x22, 0x29, 0x34, 0x3f, 0x0e, 0x05, 0x18, 0x13,
+		0xca, 0xc1, 0xdc, 0xd7, 0xe6, 0xed, 0xf0, 0xfb, 0x92, 0x99, 0x84, 0x8f,
+		0xbe, 0xb5, 0xa8, 0xa3
+		],
+
+		GDX: [
+		0x00, 0x0d, 0x1a, 0x17, 0x34, 0x39, 0x2e, 0x23, 0x68, 0x65, 0x72, 0x7f,
+		0x5c, 0x51, 0x46, 0x4b, 0xd0, 0xdd, 0xca, 0xc7, 0xe4, 0xe9, 0xfe, 0xf3,
+		0xb8, 0xb5, 0xa2, 0xaf, 0x8c, 0x81, 0x96, 0x9b, 0xbb, 0xb6, 0xa1, 0xac,
+		0x8f, 0x82, 0x95, 0x98, 0xd3, 0xde, 0xc9, 0xc4, 0xe7, 0xea, 0xfd, 0xf0,
+		0x6b, 0x66, 0x71, 0x7c, 0x5f, 0x52, 0x45, 0x48, 0x03, 0x0e, 0x19, 0x14,
+		0x37, 0x3a, 0x2d, 0x20, 0x6d, 0x60, 0x77, 0x7a, 0x59, 0x54, 0x43, 0x4e,
+		0x05, 0x08, 0x1f, 0x12, 0x31, 0x3c, 0x2b, 0x26, 0xbd, 0xb0, 0xa7, 0xaa,
+		0x89, 0x84, 0x93, 0x9e, 0xd5, 0xd8, 0xcf, 0xc2, 0xe1, 0xec, 0xfb, 0xf6,
+		0xd6, 0xdb, 0xcc, 0xc1, 0xe2, 0xef, 0xf8, 0xf5, 0xbe, 0xb3, 0xa4, 0xa9,
+		0x8a, 0x87, 0x90, 0x9d, 0x06, 0x0b, 0x1c, 0x11, 0x32, 0x3f, 0x28, 0x25,
+		0x6e, 0x63, 0x74, 0x79, 0x5a, 0x57, 0x40, 0x4d, 0xda, 0xd7, 0xc0, 0xcd,
+		0xee, 0xe3, 0xf4, 0xf9, 0xb2, 0xbf, 0xa8, 0xa5, 0x86, 0x8b, 0x9c, 0x91,
+		0x0a, 0x07, 0x10, 0x1d, 0x3e, 0x33, 0x24, 0x29, 0x62, 0x6f, 0x78, 0x75,
+		0x56, 0x5b, 0x4c, 0x41, 0x61, 0x6c, 0x7b, 0x76, 0x55, 0x58, 0x4f, 0x42,
+		0x09, 0x04, 0x13, 0x1e, 0x3d, 0x30, 0x27, 0x2a, 0xb1, 0xbc, 0xab, 0xa6,
+		0x85, 0x88, 0x9f, 0x92, 0xd9, 0xd4, 0xc3, 0xce, 0xed, 0xe0, 0xf7, 0xfa,
+		0xb7, 0xba, 0xad, 0xa0, 0x83, 0x8e, 0x99, 0x94, 0xdf, 0xd2, 0xc5, 0xc8,
+		0xeb, 0xe6, 0xf1, 0xfc, 0x67, 0x6a, 0x7d, 0x70, 0x53, 0x5e, 0x49, 0x44,
+		0x0f, 0x02, 0x15, 0x18, 0x3b, 0x36, 0x21, 0x2c, 0x0c, 0x01, 0x16, 0x1b,
+		0x38, 0x35, 0x22, 0x2f, 0x64, 0x69, 0x7e, 0x73, 0x50, 0x5d, 0x4a, 0x47,
+		0xdc, 0xd1, 0xc6, 0xcb, 0xe8, 0xe5, 0xf2, 0xff, 0xb4, 0xb9, 0xae, 0xa3,
+		0x80, 0x8d, 0x9a, 0x97
+		],
+
+		GEX: [
+		0x00, 0x0e, 0x1c, 0x12, 0x38, 0x36, 0x24, 0x2a, 0x70, 0x7e, 0x6c, 0x62,
+		0x48, 0x46, 0x54, 0x5a, 0xe0, 0xee, 0xfc, 0xf2, 0xd8, 0xd6, 0xc4, 0xca,
+		0x90, 0x9e, 0x8c, 0x82, 0xa8, 0xa6, 0xb4, 0xba, 0xdb, 0xd5, 0xc7, 0xc9,
+		0xe3, 0xed, 0xff, 0xf1, 0xab, 0xa5, 0xb7, 0xb9, 0x93, 0x9d, 0x8f, 0x81,
+		0x3b, 0x35, 0x27, 0x29, 0x03, 0x0d, 0x1f, 0x11, 0x4b, 0x45, 0x57, 0x59,
+		0x73, 0x7d, 0x6f, 0x61, 0xad, 0xa3, 0xb1, 0xbf, 0x95, 0x9b, 0x89, 0x87,
+		0xdd, 0xd3, 0xc1, 0xcf, 0xe5, 0xeb, 0xf9, 0xf7, 0x4d, 0x43, 0x51, 0x5f,
+		0x75, 0x7b, 0x69, 0x67, 0x3d, 0x33, 0x21, 0x2f, 0x05, 0x0b, 0x19, 0x17,
+		0x76, 0x78, 0x6a, 0x64, 0x4e, 0x40, 0x52, 0x5c, 0x06, 0x08, 0x1a, 0x14,
+		0x3e, 0x30, 0x22, 0x2c, 0x96, 0x98, 0x8a, 0x84, 0xae, 0xa0, 0xb2, 0xbc,
+		0xe6, 0xe8, 0xfa, 0xf4, 0xde, 0xd0, 0xc2, 0xcc, 0x41, 0x4f, 0x5d, 0x53,
+		0x79, 0x77, 0x65, 0x6b, 0x31, 0x3f, 0x2d, 0x23, 0x09, 0x07, 0x15, 0x1b,
+		0xa1, 0xaf, 0xbd, 0xb3, 0x99, 0x97, 0x85, 0x8b, 0xd1, 0xdf, 0xcd, 0xc3,
+		0xe9, 0xe7, 0xf5, 0xfb, 0x9a, 0x94, 0x86, 0x88, 0xa2, 0xac, 0xbe, 0xb0,
+		0xea, 0xe4, 0xf6, 0xf8, 0xd2, 0xdc, 0xce, 0xc0, 0x7a, 0x74, 0x66, 0x68,
+		0x42, 0x4c, 0x5e, 0x50, 0x0a, 0x04, 0x16, 0x18, 0x32, 0x3c, 0x2e, 0x20,
+		0xec, 0xe2, 0xf0, 0xfe, 0xd4, 0xda, 0xc8, 0xc6, 0x9c, 0x92, 0x80, 0x8e,
+		0xa4, 0xaa, 0xb8, 0xb6, 0x0c, 0x02, 0x10, 0x1e, 0x34, 0x3a, 0x28, 0x26,
+		0x7c, 0x72, 0x60, 0x6e, 0x44, 0x4a, 0x58, 0x56, 0x37, 0x39, 0x2b, 0x25,
+		0x0f, 0x01, 0x13, 0x1d, 0x47, 0x49, 0x5b, 0x55, 0x7f, 0x71, 0x63, 0x6d,
+		0xd7, 0xd9, 0xcb, 0xc5, 0xef, 0xe1, 0xf3, 0xfd, 0xa7, 0xa9, 0xbb, 0xb5,
+		0x9f, 0x91, 0x83, 0x8d
+		],
+		
+		// Key Schedule Core
+		core:function(word,iteration)
+		{
+			/* rotate the 32-bit word 8 bits to the left */
+			word = this.rotate(word);
+			/* apply S-Box substitution on all 4 parts of the 32-bit word */
+			for (var i = 0; i < 4; ++i)
+				word[i] = this.sbox[word[i]];
+			/* XOR the output of the rcon operation with i to the first part (leftmost) only */
+			word[0] = word[0]^this.Rcon[iteration];
+			return word;
+		},
+		
+		/* Rijndael's key expansion
+		 * expands an 128,192,256 key into an 176,208,240 bytes key
+		 *
+		 * expandedKey is a pointer to an char array of large enough size
+		 * key is a pointer to a non-expanded key
+		 */
+		expandKey:function(key,size)
+		{
+			var expandedKeySize = (16*(this.numberOfRounds(size)+1));
+			
+			/* current expanded keySize, in bytes */
+			var currentSize = 0;
+			var rconIteration = 1;
+			var t = [];   // temporary 4-byte variable
+			
+			var expandedKey = [];
+			for(var i = 0;i < expandedKeySize;i++)
+				expandedKey[i] = 0;
+		
+			/* set the 16,24,32 bytes of the expanded key to the input key */
+			for (var j = 0; j < size; j++)
+				expandedKey[j] = key[j];
+			currentSize += size;
+		
+			while (currentSize < expandedKeySize)
+			{
+				/* assign the previous 4 bytes to the temporary value t */
+				for (var k = 0; k < 4; k++)
+					t[k] = expandedKey[(currentSize - 4) + k];
+		
+				/* every 16,24,32 bytes we apply the core schedule to t
+				 * and increment rconIteration afterwards
+				 */
+				if(currentSize % size == 0)
+					t = this.core(t, rconIteration++);
+		
+				/* For 256-bit keys, we add an extra sbox to the calculation */
+				if(size == this.keySize.SIZE_256 && ((currentSize % size) == 16))
+					for(var l = 0; l < 4; l++)
+						t[l] = this.sbox[t[l]];
+		
+				/* We XOR t with the four-byte block 16,24,32 bytes before the new expanded key.
+				 * This becomes the next four bytes in the expanded key.
+				 */
+				for(var m = 0; m < 4; m++) {
+					expandedKey[currentSize] = expandedKey[currentSize - size] ^ t[m];
+					currentSize++;
+				}
+			}
+			return expandedKey;
+		},
+		
+		// Adds (XORs) the round key to the state
+		addRoundKey:function(state,roundKey)
+		{
+			for (var i = 0; i < 16; i++)
+				state[i] ^= roundKey[i];
+			return state;
+		},
+		
+		// Creates a round key from the given expanded key and the
+		// position within the expanded key.
+		createRoundKey:function(expandedKey,roundKeyPointer)
+		{
+			var roundKey = [];
+			for (var i = 0; i < 4; i++)
+				for (var j = 0; j < 4; j++)
+					roundKey[j*4+i] = expandedKey[roundKeyPointer + i*4 + j];
+			return roundKey;
+		},
+		
+		/* substitute all the values from the state with the value in the SBox
+		 * using the state value as index for the SBox
+		 */
+		subBytes:function(state,isInv)
+		{
+			for (var i = 0; i < 16; i++)
+				state[i] = isInv?this.rsbox[state[i]]:this.sbox[state[i]];
+			return state;
+		},
+		
+		/* iterate over the 4 rows and call shiftRow() with that row */
+		shiftRows:function(state,isInv)
+		{
+			for (var i = 0; i < 4; i++)
+				state = this.shiftRow(state,i*4, i,isInv);
+			return state;
+		},
+		
+		/* each iteration shifts the row to the left by 1 */
+		shiftRow:function(state,statePointer,nbr,isInv)
+		{
+			for (var i = 0; i < nbr; i++)
+			{
+				if(isInv)
+				{
+					var tmp = state[statePointer + 3];
+					for (var j = 3; j > 0; j--)
+						state[statePointer + j] = state[statePointer + j-1];
+					state[statePointer] = tmp;
+				}
+				else
+				{
+					var tmp = state[statePointer];
+					for (var j = 0; j < 3; j++)
+						state[statePointer + j] = state[statePointer + j+1];
+					state[statePointer + 3] = tmp;
+				}
+			}
+			return state;
+		},
+
+		// galois multiplication of 8 bit characters a and b
+		galois_multiplication:function(a,b)
+		{
+			var p = 0;
+			for(var counter = 0; counter < 8; counter++)
+			{
+				if((b & 1) == 1)
+					p ^= a;
+				if(p > 0x100) p ^= 0x100;
+				var hi_bit_set = (a & 0x80); //keep p 8 bit
+				a <<= 1;
+				if(a > 0x100) a ^= 0x100; //keep a 8 bit
+				if(hi_bit_set == 0x80)
+					a ^= 0x1b;
+				if(a > 0x100) a ^= 0x100; //keep a 8 bit
+				b >>= 1;
+				if(b > 0x100) b ^= 0x100; //keep b 8 bit
+			}
+			return p;
+		},
+		
+		// galois multipication of the 4x4 matrix
+		mixColumns:function(state,isInv)
+		{
+			var column = [];
+			/* iterate over the 4 columns */
+			for (var i = 0; i < 4; i++)
+			{
+				/* construct one column by iterating over the 4 rows */
+				for (var j = 0; j < 4; j++)
+					column[j] = state[(j*4)+i];
+				/* apply the mixColumn on one column */
+				column = this.mixColumn(column,isInv);
+				/* put the values back into the state */
+				for (var k = 0; k < 4; k++)
+					state[(k*4)+i] = column[k];
+			}
+			return state;
+		},
+
+		// galois multipication of 1 column of the 4x4 matrix
+		mixColumn:function(column,isInv)
+		{
+			var mult = [];	
+			if(isInv)
+				mult = [14,9,13,11];
+			else
+				mult = [2,1,1,3];
+			var cpy = [];
+			for(var i = 0; i < 4; i++)
+				cpy[i] = column[i];
+			
+			column[0] = 	this.galois_multiplication(cpy[0],mult[0]) ^
+					this.galois_multiplication(cpy[3],mult[1]) ^
+					this.galois_multiplication(cpy[2],mult[2]) ^
+					this.galois_multiplication(cpy[1],mult[3]);
+			column[1] = 	this.galois_multiplication(cpy[1],mult[0]) ^
+					this.galois_multiplication(cpy[0],mult[1]) ^
+					this.galois_multiplication(cpy[3],mult[2]) ^
+					this.galois_multiplication(cpy[2],mult[3]);
+			column[2] = 	this.galois_multiplication(cpy[2],mult[0]) ^
+					this.galois_multiplication(cpy[1],mult[1]) ^
+					this.galois_multiplication(cpy[0],mult[2]) ^
+					this.galois_multiplication(cpy[3],mult[3]);
+			column[3] = 	this.galois_multiplication(cpy[3],mult[0]) ^
+					this.galois_multiplication(cpy[2],mult[1]) ^
+					this.galois_multiplication(cpy[1],mult[2]) ^
+					this.galois_multiplication(cpy[0],mult[3]);
+			return column;
+		},
+		
+		// applies the 4 operations of the forward round in sequence
+		round:function(state, roundKey)
+		{
+			state = this.subBytes(state,false);
+			state = this.shiftRows(state,false);
+			state = this.mixColumns(state,false);
+			state = this.addRoundKey(state, roundKey);
+			return state;
+		},
+		
+		// applies the 4 operations of the inverse round in sequence
+		invRound:function(state,roundKey)
+		{
+			state = this.shiftRows(state,true);
+			state = this.subBytes(state,true);
+			state = this.addRoundKey(state, roundKey);
+			state = this.mixColumns(state,true);
+			return state;
+		},
+		
+		/*
+		 * Perform the initial operations, the standard round, and the final operations
+		 * of the forward aes, creating a round key for each round
+		 */
+		main:function(state,expandedKey,nbrRounds)
+		{
+			state = this.addRoundKey(state, this.createRoundKey(expandedKey,0));
+			for (var i = 1; i < nbrRounds; i++)
+				state = this.round(state, this.createRoundKey(expandedKey,16*i));
+			state = this.subBytes(state,false);
+			state = this.shiftRows(state,false);
+			state = this.addRoundKey(state, this.createRoundKey(expandedKey,16*nbrRounds));
+			return state;
+		},
+		
+		/*
+		 * Perform the initial operations, the standard round, and the final operations
+		 * of the inverse aes, creating a round key for each round
+		 */
+		invMain:function(state, expandedKey, nbrRounds)
+		{
+			state = this.addRoundKey(state, this.createRoundKey(expandedKey,16*nbrRounds));
+			for (var i = nbrRounds-1; i > 0; i--)
+				state = this.invRound(state, this.createRoundKey(expandedKey,16*i));
+			state = this.shiftRows(state,true);
+			state = this.subBytes(state,true);
+			state = this.addRoundKey(state, this.createRoundKey(expandedKey,0));
+			return state;
+		},
+
+		numberOfRounds:function(size)
+		{
+			var nbrRounds;
+			switch (size) /* set the number of rounds */
+			{
+				case this.keySize.SIZE_128:
+					nbrRounds = 10;
+					break;
+				case this.keySize.SIZE_192:
+					nbrRounds = 12;
+					break;
+				case this.keySize.SIZE_256:
+					nbrRounds = 14;
+					break;
+				default:
+					return null;
+					break;
+			}
+			return nbrRounds;
+		},
+		
+		// encrypts a 128 bit input block against the given key of size specified
+		encrypt:function(input,key,size)
+		{
+			var output = [];
+			var block = []; /* the 128 bit block to encode */
+			var nbrRounds = this.numberOfRounds(size);
+			/* Set the block values, for the block:
+			 * a0,0 a0,1 a0,2 a0,3
+			 * a1,0 a1,1 a1,2 a1,3
+			 * a2,0 a2,1 a2,2 a2,3
+			 * a3,0 a3,1 a3,2 a3,3
+			 * the mapping order is a0,0 a1,0 a2,0 a3,0 a0,1 a1,1 ... a2,3 a3,3
+			 */
+			for (var i = 0; i < 4; i++) /* iterate over the columns */
+				for (var j = 0; j < 4; j++) /* iterate over the rows */
+					block[(i+(j*4))] = input[(i*4)+j];
+		
+			/* expand the key into an 176, 208, 240 bytes key */
+			var expandedKey = this.expandKey(key, size); /* the expanded key */
+			/* encrypt the block using the expandedKey */
+			block = this.main(block, expandedKey, nbrRounds);
+			for (var k = 0; k < 4; k++) /* unmap the block again into the output */
+				for (var l = 0; l < 4; l++) /* iterate over the rows */
+					output[(k*4)+l] = block[(k+(l*4))];
+			return output;
+		},
+		
+		// decrypts a 128 bit input block against the given key of size specified
+		decrypt:function(input, key, size)
+		{
+			var output = [];
+			var block = []; /* the 128 bit block to decode */
+			var nbrRounds = this.numberOfRounds(size);
+			/* Set the block values, for the block:
+			 * a0,0 a0,1 a0,2 a0,3
+			 * a1,0 a1,1 a1,2 a1,3
+			 * a2,0 a2,1 a2,2 a2,3
+			 * a3,0 a3,1 a3,2 a3,3
+			 * the mapping order is a0,0 a1,0 a2,0 a3,0 a0,1 a1,1 ... a2,3 a3,3
+			 */
+			for (var i = 0; i < 4; i++) /* iterate over the columns */
+				for (var j = 0; j < 4; j++) /* iterate over the rows */
+					block[(i+(j*4))] = input[(i*4)+j];
+			/* expand the key into an 176, 208, 240 bytes key */
+			var expandedKey = this.expandKey(key, size);
+			/* decrypt the block using the expandedKey */
+			block = this.invMain(block, expandedKey, nbrRounds);
+			for (var k = 0; k < 4; k++)/* unmap the block again into the output */
+				for (var l = 0; l < 4; l++)/* iterate over the rows */
+					output[(k*4)+l] = block[(k+(l*4))];
+			return output;
+		}
+	},
+	/*
+	 * END AES SECTION
+	 */
+	 
+	/*
+	 * START MODE OF OPERATION SECTION
+	 */
+	//structure of supported modes of operation
+	modeOfOperation:{
+		OFB:0,
+		CFB:1,
+		CBC:2
+	},
+	
+	// gets a properly padded block
+	getPaddedBlock: function(bytesIn,start,end,mode)
+	{
+		if(end - start > 16)
+			end = start + 16;
+		
+		var array = bytesIn.slice(start, end);
+		
+		if (mode == this.modeOfOperation.CBC)
+		{
+			var cpad = 16 - array.length;
+			while(array.length < 16)
+			{
+				array.push(cpad);
+			}
+		}
+			
+		return array;
+	},
+	
+	/*
+	 * Mode of Operation Encryption
+	 * bytesIn - Input String as array of bytes
+	 * mode - mode of type modeOfOperation
+	 * key - a number array of length 'size'
+	 * size - the bit length of the key
+	 * iv - the 128 bit number array Initialization Vector
+	 */
+	encrypt: function (bytesIn, mode, key, size, iv)
+	{
+		if(key.length%size)
+		{
+			throw 'Key length does not match specified size.';
+		}
+		if(iv.length%16)
+		{
+			throw 'iv length must be 128 bits.';
+		}
+		// the AES input/output
+		var byteArray = [];
+		var input = [];
+		var output = [];
+		var ciphertext = [];
+		var cipherOut = [];
+		// char firstRound
+		var firstRound = true;
+		if (bytesIn !== null)
+		{
+			for (var j = 0;j < Math.ceil(bytesIn.length/16); j++)
+			{
+				var start = j*16;
+				var end = j*16+16;
+				if(j*16+16 > bytesIn.length)
+					end = bytesIn.length;
+				byteArray = this.getPaddedBlock(bytesIn,start,end,mode);
+				if (mode == this.modeOfOperation.CFB)
+				{
+					if (firstRound)
+					{
+						output = this.aes.encrypt(iv, key, size);
+						firstRound = false;
+					}
+					else
+						output = this.aes.encrypt(input, key, size);
+					for (var i = 0; i < 16; i++)
+						ciphertext[i] = byteArray[i] ^ output[i];
+					for(var k = 0;k < end-start;k++)
+						cipherOut.push(ciphertext[k]);
+					input = ciphertext;
+				}
+				else if (mode == this.modeOfOperation.OFB)
+				{
+					if (firstRound)
+					{
+						output = this.aes.encrypt(iv, key, size);
+						firstRound = false;
+					}
+					else
+						output = this.aes.encrypt(input, key, size);
+					for (var i = 0; i < 16; i++)
+						ciphertext[i] = byteArray[i] ^ output[i];
+					for(var k = 0;k < end-start;k++)
+						cipherOut.push(ciphertext[k]);
+					input = output;
+				}
+				else if (mode == this.modeOfOperation.CBC)
+				{
+					for (var i = 0; i < 16; i++)
+						input[i] = byteArray[i] ^ ((firstRound) ? iv[i] : ciphertext[i]);
+					firstRound = false;
+					ciphertext = this.aes.encrypt(input, key, size);
+					// always 16 bytes because of the padding for CBC
+					for(var k = 0;k < 16;k++)
+						cipherOut.push(ciphertext[k]);
+				}
+			}
+		}
+		return {mode:mode,originalsize:bytesIn.length,cipher:cipherOut};
+	},
+	
+	/*
+	 * Mode of Operation Decryption
+	 * cipherIn - Encrypted String as array of bytes
+	 * originalsize - The unencrypted string length - required for CBC
+	 * mode - mode of type modeOfOperation
+	 * key - a number array of length 'size'
+	 * size - the bit length of the key
+	 * iv - the 128 bit number array Initialization Vector
+	 */
+	decrypt:function(cipherIn,originalsize,mode,key,size,iv)
+	{
+		if(key.length%size)
+		{
+			throw 'Key length does not match specified size.';
+			return null;
+		}
+		if(iv.length%16)
+		{
+			throw 'iv length must be 128 bits.';
+		}
+		// the AES input/output
+		var ciphertext = [];
+		var input = [];
+		var output = [];
+		var byteArray = [];
+		var bytesOut = [];
+		// char firstRound
+		var firstRound = true;
+		if (cipherIn !== null)
+		{
+			for (var j = 0;j < Math.ceil(cipherIn.length/16); j++)
+			{
+				var start = j*16;
+				var end = j*16+16;
+				if(j*16+16 > cipherIn.length)
+					end = cipherIn.length;
+				ciphertext = this.getPaddedBlock(cipherIn,start,end,mode);
+				if (mode == this.modeOfOperation.CFB)
+				{
+					if (firstRound)
+					{
+						output = this.aes.encrypt(iv, key, size);
+						firstRound = false;
+					}
+					else
+						output = this.aes.encrypt(input, key, size);
+					for (i = 0; i < 16; i++)
+						byteArray[i] = output[i] ^ ciphertext[i];
+					for(var k = 0;k < end-start;k++)
+						bytesOut.push(byteArray[k]);
+					input = ciphertext;
+				}
+				else if (mode == this.modeOfOperation.OFB)
+				{
+					if (firstRound)
+					{
+						output = this.aes.encrypt(iv, key, size);
+						firstRound = false;
+					}
+					else
+						output = this.aes.encrypt(input, key, size);
+					for (i = 0; i < 16; i++)
+						byteArray[i] = output[i] ^ ciphertext[i];
+					for(var k = 0;k < end-start;k++)
+						bytesOut.push(byteArray[k]);
+					input = output;
+				}
+				else if(mode == this.modeOfOperation.CBC)
+				{
+					output = this.aes.decrypt(ciphertext, key, size);
+					for (i = 0; i < 16; i++)
+						byteArray[i] = ((firstRound) ? iv[i] : input[i]) ^ output[i];
+					firstRound = false;
+					if (originalsize < end)
+						for(var k = 0;k < originalsize-start;k++)
+							bytesOut.push(byteArray[k]);
+					else
+						for(var k = 0;k < end-start;k++)
+							bytesOut.push(byteArray[k]);
+					input = ciphertext;
+				}
+			}
+		}
+		return bytesOut;
+	}
+	/*
+	 * END MODE OF OPERATION SECTION
+	 */
+};
+