javascript-vipaccess/index.html at master · BigRedBot/javascript-vipaccess · GitHub

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="description" content="JavaScript Vip Access">
<meta name="keywords" content="symantec,Vip Access,yubikey,neo">
<meta name="author" content="mike lawrence">
<meta name="copyright" content="Apache Commons">
<meta name="robots" content="index, follow">
<meta name="googlebot" content="index, follow">
<meta name="google-site-verification" content="" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-touch-fullscreen" content="yes" />
<title>JavaScript Vip Access</title>
<style>
pre {
	font-family: monospace;
	font-size: 11px;
	font-style: normal;
	font-variant: normal;
	font-weight: 400;
	line-height: 9.9px;
}
#otpbar {
    background-color:green;
}
</style>
</head>
<body>
<h1>JavaScript VIP Access</h1>
This stand-alone html page creates an E*Trade Security Token you can
store in a Yubikey Neo hardware key and
register with E*Trade for Two-Factor Login.
Open this index.html file with
<ul>
<li>Internet Explorer 11 or older. (Allow Blocked Content)</li>
<li>Windows Chrome from command prompt at folder containing Chrome.exe: chrome.exe --disable-web-security -–allow-file-access-from-files --user-data-dir=c:\temp index.html</li>
</ul>

<h2>Yubikey Neo Configuration (one time)</h2>
    To add the generated E*Trade Secret Key to your Neo hardware key:
<ul>
    <li>Open the Yubikey Phone App, select the + at the top right.</li>
    <li>Enter Url below or select "Get QR Code" button to use Google to convert Url to a scanable image</li>
        <div id="qrUrl"></div>
        <button id="showQrImageButton">Get QR Code</button>
        <img id="qrImg" src="" />
</ul>

<h2>E*Trade Configuration (one time)</h2>
    Login to E*Trade
<ul>
    <li>Open browser to <a href="https://us.etrade.com/e/t/user/login">https://us.etrade.com/e/t/user/login</a></li>
</ul>

Configure your account
<ul>
    <li>Open browser to <a href="https://us.etrade.com/e/t/accounts/mfaactivatetoken?FirstTime=YES">https://us.etrade.com/e/t/accounts/mfaactivatetoken?FirstTime=YES</a></li>
    <li>Mobile Phone#:</li>
    <li>Credential ID:</li>
        <input type="text" size="30" id="credentialId" value="" />
    <li>Security Code (one time passcode):</li>  <!-- Run the Yubikey App, Scan your Neo key using NFC, enter the displayed 6 digit OTP VIP Access code -->
        <span id='otp'></span>
        <div id='otpbar'></div>
    <li>Click Activate</li>
</ul>

<h2>E*Trade Login (each time)</h2>
To Login at E*Trade with Two Factor Auth:
<ul>
    <li>Open browser to <a href="https://us.etrade.com/e/t/user/login">https://us.etrade.com/e/t/user/login</a></li>
    <li>Enter your User Id</li>
    <li>Enter your Password</li>
    <li>Open the Yubikey app on your phone</li>
    <li>Scan your Neo Token</li>
    <li>Add the displayed 6 digit VIP Access code to the end of your Password</li>
    <li>Click LOG ON</li>
</ul>

<h2>Notes</h2>
<ul>
    <li>Hex Time:<span id='hexTime'></span> (unix seconds since epoch div 30 padded hex)</li>
    <li>HMAC:<span id='hmac'></span></li>
    <li>Credential Hex:<span id="secretHex"></span></li>
    <li>Credential Length:<span id='secretHexLength'></span></li>
</ul>

<h2>Console</h2>
<pre id="console"></pre>

<h2>Related Links</h2>
<ul>
    <li>http://blog.tinisles.com/2011/10/google-authenticator-one-time-password-algorithm-in-javascript/</li>
    <li>https://github.com/systemsplanet/java-vipaccess</li>
    <li>https://www.yubico.com/products/yubikey-hardware/yubikey-neo/</li>
    <li>https://us.etrade.com/security-center</li>
    <li>https://github.com/cyrozap/python-vipaccess/blob/master/vipaccess/utils.py</li>
</ul>


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///////////////////////////////////////////////////////////////////////////////
// https://github.com/Caligatio/jsSHA/releases/tag/v2.2.0

/**
 * @preserve A JavaScript implementation of the SHA family of hashes, as
 * defined in FIPS PUB 180-4 and FIPS PUB 202, as well as the corresponding
 * HMAC implementation as defined in FIPS PUB 198a
 *
 * Copyright Brian Turek 2008-2016
 * Distributed under the BSD License
 * See http://caligatio.github.com/jsSHA/ for more information
 *
 * Several functions taken from Paul Johnston
 */

/*jslint
	bitwise: true, multivar: true, for: true, this: true, sub: true, esversion: 3
*/

 /**
  * SUPPORTED_ALGS is the stub for a compile flag that will cause pruning of
  * functions that are not needed when a limited number of SHA families are
  * selected
  *
  * @define {number} ORed value of SHA variants to be supported
  *   1 = SHA-1, 2 = SHA-224/SHA-256, 4 = SHA-384/SHA-512, 8 = SHA3
  */
var SUPPORTED_ALGS = 8 | 4 | 2 | 1;

(function (global)
{
	"use strict";

	/* Globals */
	var TWO_PWR_32 = (1 << 16) * (1 << 16);

	/**
	 * Int_64 is a object for 2 32-bit numbers emulating a 64-bit number
	 *
	 * @private
	 * @constructor
	 * @this {Int_64}
	 * @param {number} msint_32 The most significant 32-bits of a 64-bit number
	 * @param {number} lsint_32 The least significant 32-bits of a 64-bit number
	 */
	function Int_64(msint_32, lsint_32)
	{
		this.highOrder = msint_32;
		this.lowOrder = lsint_32;
	}

	/**
	 * Convert a string to an array of big-endian words
	 *
	 * There is a known bug with an odd number of existing bytes and using a
	 * UTF-16 encoding.  However, this function is used such that the existing
	 * bytes are always a result of a previous UTF-16 str2binb call and
	 * therefore there should never be an odd number of existing bytes
	 *
	 * @private
	 * @param {string} str String to be converted to binary representation
	 * @param {string} utfType The Unicode type, UTF8 or UTF16BE, UTF16LE, to
	 *   use to encode the source string
	 * @param {Array<number>} existingBin A packed int array of bytes to
	 *   append the results to
	 * @param {number} existingBinLen The number of bits in the existingBin
	 *   array
	 * @return {{value : Array<number>, binLen : number}} Hash list where
	 *   "value" contains the output number array and "binLen" is the binary
	 *   length of "value"
	 */
	function str2binb(str, utfType, existingBin, existingBinLen)
	{
		var bin = [], codePnt, binArr = [], byteCnt = 0, i, j, existingByteLen,
			intOffset, byteOffset;

		bin = existingBin || [0];
		existingBinLen = existingBinLen || 0;
		existingByteLen = existingBinLen >>> 3;

		if ("UTF8" === utfType)
		{
			for (i = 0; i < str.length; i += 1)
			{
				codePnt = str.charCodeAt(i);
				binArr = [];

				if (0x80 > codePnt)
				{
					binArr.push(codePnt);
				}
				else if (0x800 > codePnt)
				{
					binArr.push(0xC0 | (codePnt >>> 6));
					binArr.push(0x80 | (codePnt & 0x3F));
				}
				else if ((0xd800 > codePnt) || (0xe000 <= codePnt)) {
					binArr.push(
						0xe0 | (codePnt >>> 12),
						0x80 | ((codePnt >>> 6) & 0x3f),
						0x80 | (codePnt & 0x3f)
					);
				}
				else
				{
					i += 1;
					codePnt = 0x10000 + (((codePnt & 0x3ff) << 10) | (str.charCodeAt(i) & 0x3ff));
					binArr.push(
						0xf0 | (codePnt >>> 18),
						0x80 | ((codePnt >>> 12) & 0x3f),
						0x80 | ((codePnt >>> 6) & 0x3f),
						0x80 | (codePnt & 0x3f)
					);
				}

				for (j = 0; j < binArr.length; j += 1)
				{
					byteOffset = byteCnt + existingByteLen;
					intOffset = byteOffset >>> 2;
					while (bin.length <= intOffset)
					{
						bin.push(0);
					}
					/* Known bug kicks in here */
					bin[intOffset] |= binArr[j] << (8 * (3 - (byteOffset % 4)));
					byteCnt += 1;
				}
			}
		}
		else if (("UTF16BE" === utfType) || "UTF16LE" === utfType)
		{
			for (i = 0; i < str.length; i += 1)
			{
				codePnt = str.charCodeAt(i);
				/* Internally strings are UTF-16BE so only change if UTF-16LE */
				if ("UTF16LE" === utfType)
				{
					j = codePnt & 0xFF;
					codePnt = (j << 8) | (codePnt >>> 8);
				}

				byteOffset = byteCnt + existingByteLen;
				intOffset = byteOffset >>> 2;
				while (bin.length <= intOffset)
				{
					bin.push(0);
				}
				bin[intOffset] |= codePnt << (8 * (2 - (byteOffset % 4)));
				byteCnt += 2;
			}
		}
		return {"value" : bin, "binLen" : byteCnt * 8 + existingBinLen};
	}

	/**
	 * Convert a hex string to an array of big-endian words
	 *
	 * @private
	 * @param {string} str String to be converted to binary representation
	 * @param {Array<number>} existingBin A packed int array of bytes to
	 *   append the results to
	 * @param {number} existingBinLen The number of bits in the existingBin
	 *   array
	 * @return {{value : Array<number>, binLen : number}} Hash list where
	 *   "value" contains the output number array and "binLen" is the binary
	 *   length of "value"
	 */
	function hex2binb(str, existingBin, existingBinLen)
	{
		var bin, length = str.length, i, num, intOffset, byteOffset,
			existingByteLen;

		bin = existingBin || [0];
		existingBinLen = existingBinLen || 0;
		existingByteLen = existingBinLen >>> 3;

		if (0 !== (length % 2))
		{
			throw new Error("String of HEX type must be in byte increments");
		}

		for (i = 0; i < length; i += 2)
		{
			num = parseInt(str.substr(i, 2), 16);
			if (!isNaN(num))
			{
				byteOffset = (i >>> 1) + existingByteLen;
				intOffset = byteOffset >>> 2;
				while (bin.length <= intOffset)
				{
					bin.push(0);
				}
				bin[intOffset] |= num << 8 * (3 - (byteOffset % 4));
			}
			else
			{
				throw new Error("String of HEX type contains invalid characters");
			}
		}

		return {"value" : bin, "binLen" : length * 4 + existingBinLen};
	}

	/**
	 * Convert a string of raw bytes to an array of big-endian words
	 *
	 * @private
	 * @param {string} str String of raw bytes to be converted to binary representation
	 * @param {Array<number>} existingBin A packed int array of bytes to
	 *   append the results to
	 * @param {number} existingBinLen The number of bits in the existingBin
	 *   array
	 * @return {{value : Array<number>, binLen : number}} Hash list where
	 *   "value" contains the output number array and "binLen" is the binary
	 *   length of "value"
	 */
	function bytes2binb(str, existingBin, existingBinLen)
	{
		var bin = [], codePnt, i, existingByteLen, intOffset,
			byteOffset;

		bin = existingBin || [0];
		existingBinLen = existingBinLen || 0;
		existingByteLen = existingBinLen >>> 3;

		for (i = 0; i < str.length; i += 1)
		{
			codePnt = str.charCodeAt(i);

			byteOffset = i + existingByteLen;
			intOffset = byteOffset >>> 2;
			if (bin.length <= intOffset)
			{
				bin.push(0);
			}
			bin[intOffset] |= codePnt << 8 * (3 - (byteOffset % 4));
		}

		return {"value" : bin, "binLen" : str.length * 8 + existingBinLen};
	}

	/**
	 * Convert a base-64 string to an array of big-endian words
	 *
	 * @private
	 * @param {string} str String to be converted to binary representation
	 * @param {Array<number>} existingBin A packed int array of bytes to
	 *   append the results to
	 * @param {number} existingBinLen The number of bits in the existingBin
	 *   array
	 * @return {{value : Array<number>, binLen : number}} Hash list where
	 *   "value" contains the output number array and "binLen" is the binary
	 *   length of "value"
	 */
	function b642binb(str, existingBin, existingBinLen)
	{
		var bin = [], byteCnt = 0, index, i, j, tmpInt, strPart, firstEqual,
			b64Tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
			existingByteLen, intOffset, byteOffset;

		bin = existingBin || [0];
		existingBinLen = existingBinLen || 0;
		existingByteLen = existingBinLen >>> 3;

		if (-1 === str.search(/^[a-zA-Z0-9=+\/]+$/))
		{
			throw new Error("Invalid character in base-64 string");
		}
		firstEqual = str.indexOf("=");
		str = str.replace(/\=/g, "");
		if ((-1 !== firstEqual) && (firstEqual < str.length))
		{
			throw new Error("Invalid '=' found in base-64 string");
		}

		for (i = 0; i < str.length; i += 4)
		{
			strPart = str.substr(i, 4);
			tmpInt = 0;

			for (j = 0; j < strPart.length; j += 1)
			{
				index = b64Tab.indexOf(strPart[j]);
				tmpInt |= index << (18 - (6 * j));
			}

			for (j = 0; j < strPart.length - 1; j += 1)
			{
				byteOffset = byteCnt + existingByteLen;
				intOffset = byteOffset >>> 2;
				while (bin.length <= intOffset)
				{
					bin.push(0);
				}
				bin[intOffset] |= ((tmpInt >>> (16 - (j * 8))) & 0xFF) <<
					8 * (3 - (byteOffset % 4));
				byteCnt += 1;
			}
		}

		return {"value" : bin, "binLen" : byteCnt * 8 + existingBinLen};
	}

	/**
	 * Convert an ArrayBuffer to an array of big-endian words
	 *
	 * @private
	 * @param {ArrayBuffer} arr ArrayBuffer to be converted to binary
	 *   representation
	 * @param {Array<number>} existingBin A packed int array of bytes to
	 *   append the results to
	 * @param {number} existingBinLen The number of bits in the existingBin
	 *   array
	 * @return {{value : Array<number>, binLen : number}} Hash list where
	 *   "value" contains the output number array and "binLen" is the binary
	 *   length of "value"
	 */
	function arraybuffer2binb(arr, existingBin, existingBinLen)
	{
		var bin = [], i, existingByteLen, intOffset, byteOffset;

		bin = existingBin || [0];
		existingBinLen = existingBinLen || 0;
		existingByteLen = existingBinLen >>> 3;

		for (i = 0; i < arr.byteLength; i += 1)
		{
			byteOffset = i + existingByteLen;
			intOffset = byteOffset >>> 2;
			if (bin.length <= intOffset)
			{
				bin.push(0);
			}
			bin[intOffset] |= arr[i] << 8 * (3 - (byteOffset % 4));
		}

		return {"value" : bin, "binLen" : arr.byteLength * 8 + existingBinLen};
	}

	/**
	 * Convert an array of big-endian words to a hex string.
	 *
	 * @private
	 * @param {Array<number>} binarray Array of integers to be converted to
	 *   hexidecimal representation
	 * @param {number} outputLength Length of output in bits
	 * @param {{outputUpper : boolean, b64Pad : string}} formatOpts Hash list
	 *   containing validated output formatting options
	 * @return {string} Hexidecimal representation of the parameter in string
	 *   form
	 */
	function binb2hex(binarray, outputLength, formatOpts)
	{
		var hex_tab = "0123456789abcdef", str = "",
			length = outputLength / 8, i, srcByte;

		for (i = 0; i < length; i += 1)
		{
			/* The below is more than a byte but it gets taken care of later */
			srcByte = binarray[i >>> 2] >>> ((3 - (i % 4)) * 8);
			str += hex_tab.charAt((srcByte >>> 4) & 0xF) +
				hex_tab.charAt(srcByte & 0xF);
		}

		return (formatOpts["outputUpper"]) ? str.toUpperCase() : str;
	}

	/**
	 * Convert an array of big-endian words to a base-64 string
	 *
	 * @private
	 * @param {Array<number>} binarray Array of integers to be converted to
	 *   base-64 representation
	 * @param {number} outputLength Length of output in bits
	 * @param {{outputUpper : boolean, b64Pad : string}} formatOpts Hash list
	 *   containing validated output formatting options
	 * @return {string} Base-64 encoded representation of the parameter in
	 *   string form
	 */
	function binb2b64(binarray, outputLength, formatOpts)
	{
		var str = "", length = outputLength / 8, i, j, triplet, int1, int2,
			b64Tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

		for (i = 0; i < length; i += 3)
		{
			int1 = ((i + 1) < length) ? binarray[(i + 1) >>> 2] : 0;
			int2 = ((i + 2) < length) ? binarray[(i + 2) >>> 2] : 0;
			triplet = (((binarray[i >>> 2] >>> 8 * (3 - i % 4)) & 0xFF) << 16) |
				(((int1 >>> 8 * (3 - (i + 1) % 4)) & 0xFF) << 8) |
				((int2 >>> 8 * (3 - (i + 2) % 4)) & 0xFF);
			for (j = 0; j < 4; j += 1)
			{
				if (i * 8 + j * 6 <= outputLength)
				{
					str += b64Tab.charAt((triplet >>> 6 * (3 - j)) & 0x3F);
				}
				else
				{
					str += formatOpts["b64Pad"];
				}
			}
		}
		return str;
	}

	/**
	 * Convert an array of big-endian words to raw bytes string
	 *
	 * @private
	 * @param {Array<number>} binarray Array of integers to be converted to
	 *   a raw bytes string representation
	 * @param {number} outputLength Length of output in bits
	 * @return {string} Raw bytes representation of the parameter in string
	 *   form
	 */
	function binb2bytes(binarray, outputLength)
	{
		var str = "", length = outputLength / 8, i, srcByte;

		for (i = 0; i < length; i += 1)
		{
			srcByte = (binarray[i >>> 2] >>> ((3 - (i % 4)) * 8)) & 0xFF;
			str += String.fromCharCode(srcByte);
		}

		return str;
	}

	/**
	 * Convert an array of big-endian words to an ArrayBuffer
	 *
	 * @private
	 * @param {Array<number>} binarray Array of integers to be converted to
	 *   an ArrayBuffer
	 * @param {number} outputLength Length of output in bits
	 * @return {ArrayBuffer} Raw bytes representation of the parameter in an
	 *   ArrayBuffer
	 */
	function binb2arraybuffer(binarray, outputLength)
	{
		var length = outputLength / 8, i, retVal = new ArrayBuffer(length);

		for (i = 0; i < length; i += 1)
		{
			retVal[i] = (binarray[i >>> 2] >>> ((3 - (i % 4)) * 8)) & 0xFF;
		}

		return retVal;
	}

	/**
	 * Validate hash list containing output formatting options, ensuring
	 * presence of every option or adding the default value
	 *
	 * @private
	 * @param {{outputUpper : (boolean|undefined), b64Pad : (string|undefined),
	 *   shakeLen : (number|undefined)}=} options Hash list of output formatting options
	 * @return {{outputUpper : boolean, b64Pad : string, shakeLen : number}} Validated
	 *   hash list containing output formatting options
	 */
	function getOutputOpts(options)
	{
		var retVal = {"outputUpper" : false, "b64Pad" : "=", "shakeLen" : -1},
			outputOptions;
		outputOptions = options || {};

		retVal["outputUpper"] = outputOptions["outputUpper"] || false;

		if (true === outputOptions.hasOwnProperty("b64Pad"))
		{
			retVal["b64Pad"] = outputOptions["b64Pad"];
		}

		if ((true === outputOptions.hasOwnProperty("shakeLen")) && ((8 & SUPPORTED_ALGS) !== 0))
		{
			if (outputOptions["shakeLen"] % 8 !== 0)
			{
				throw new Error("shakeLen must be a multiple of 8");
			}
			retVal["shakeLen"] = outputOptions["shakeLen"];
		}

		if ("boolean" !== typeof(retVal["outputUpper"]))
		{
			throw new Error("Invalid outputUpper formatting option");
		}

		if ("string" !== typeof(retVal["b64Pad"]))
		{
			throw new Error("Invalid b64Pad formatting option");
		}

		return retVal;
	}

	/**
	 * Function that takes an input format and UTF encoding and returns the
	 * appropriate function used to convert the input.
	 *
	 * @private
	 * @param {string} format The format of the string to be converted
	 * @param {string} utfType The string encoding to use (UTF8, UTF16BE,
	 *	UTF16LE)
	 * @return {function(string, Array<number>=, number=): {value :
	 *   Array<number>, binLen : number}} Function that will convert an input
	 *   string to a packed int array
	 */
	function getStrConverter(format, utfType)
	{
		var retVal;

		/* Validate encoding */
		switch (utfType)
		{
		case "UTF8":
			/* Fallthrough */
		case "UTF16BE":
			/* Fallthrough */
		case "UTF16LE":
			/* Fallthrough */
			break;
		default:
			throw new Error("encoding must be UTF8, UTF16BE, or UTF16LE");
		}

		/* Map inputFormat to the appropriate converter */
		switch (format)
		{
		case "HEX":
			retVal = hex2binb;
			break;
		case "TEXT":
			retVal = function(str, existingBin, existingBinLen)
				{
					return str2binb(str, utfType, existingBin, existingBinLen);
				};
			break;
		case "B64":
			retVal = b642binb;
			break;
		case "BYTES":
			retVal = bytes2binb;
			break;
		case "ARRAYBUFFER":
			try {
				retVal = new ArrayBuffer(0);
			} catch(ignore) {
				throw new Error("ARRAYBUFFER not supported by this environment");
			}
			retVal = arraybuffer2binb;
			break;
		default:
			throw new Error("format must be HEX, TEXT, B64, BYTES, or ARRAYBUFFER");
		}

		return retVal;
	}

	/**
	 * The 32-bit implementation of circular rotate left
	 *
	 * @private
	 * @param {number} x The 32-bit integer argument
	 * @param {number} n The number of bits to shift
	 * @return {number} The x shifted circularly by n bits
	 */
	function rotl_32(x, n)
	{
		return (x << n) | (x >>> (32 - n));
	}

	function rotl_64(x, n)
	{
		if (n > 32)
		{
			n = n - 32;
			return new Int_64(
				x.lowOrder << n | x.highOrder >>> (32 - n),
				x.highOrder << n | x.lowOrder >>> (32 - n)
			);
		}
		else if (0 !== n)
		{
			return new Int_64(
				x.highOrder << n | x.lowOrder >>> (32 - n),
				x.lowOrder << n | x.highOrder >>> (32 - n)
			);
		}
		else
		{
			return x;
		}
	}

	/**
	 * The 32-bit implementation of circular rotate right
	 *
	 * @private
	 * @param {number} x The 32-bit integer argument
	 * @param {number} n The number of bits to shift
	 * @return {number} The x shifted circularly by n bits
	 */
	function rotr_32(x, n)
	{
		return (x >>> n) | (x << (32 - n));
	}

	/**
	 * The 64-bit implementation of circular rotate right
	 *
	 * @private
	 * @param {Int_64} x The 64-bit integer argument
	 * @param {number} n The number of bits to shift
	 * @return {Int_64} The x shifted circularly by n bits
	 */
	function rotr_64(x, n)
	{
		var retVal = null, tmp = new Int_64(x.highOrder, x.lowOrder);

		if (32 >= n)
		{
			retVal = new Int_64(
					(tmp.highOrder >>> n) | ((tmp.lowOrder << (32 - n)) & 0xFFFFFFFF),
					(tmp.lowOrder >>> n) | ((tmp.highOrder << (32 - n)) & 0xFFFFFFFF)
				);
		}
		else
		{
			retVal = new Int_64(
					(tmp.lowOrder >>> (n - 32)) | ((tmp.highOrder << (64 - n)) & 0xFFFFFFFF),
					(tmp.highOrder >>> (n - 32)) | ((tmp.lowOrder << (64 - n)) & 0xFFFFFFFF)
				);
		}

		return retVal;
	}

	/**
	 * The 32-bit implementation of shift right
	 *
	 * @private
	 * @param {number} x The 32-bit integer argument
	 * @param {number} n The number of bits to shift
	 * @return {number} The x shifted by n bits
	 */
	function shr_32(x, n)
	{
		return x >>> n;
	}

	/**
	 * The 64-bit implementation of shift right
	 *
	 * @private
	 * @param {Int_64} x The 64-bit integer argument
	 * @param {number} n The number of bits to shift
	 * @return {Int_64} The x shifted by n bits
	 */
	function shr_64(x, n)
	{
		var retVal = null;

		if (32 >= n)
		{
			retVal = new Int_64(
					x.highOrder >>> n,
					x.lowOrder >>> n | ((x.highOrder << (32 - n)) & 0xFFFFFFFF)
				);
		}
		else
		{
			retVal = new Int_64(
					0,
					x.highOrder >>> (n - 32)
				);
		}

		return retVal;
	}

	/**
	 * The 32-bit implementation of the NIST specified Parity function
	 *
	 * @private
	 * @param {number} x The first 32-bit integer argument
	 * @param {number} y The second 32-bit integer argument
	 * @param {number} z The third 32-bit integer argument
	 * @return {number} The NIST specified output of the function
	 */
	function parity_32(x, y, z)
	{
		return x ^ y ^ z;
	}

	/**
	 * The 32-bit implementation of the NIST specified Ch function
	 *
	 * @private
	 * @param {number} x The first 32-bit integer argument
	 * @param {number} y The second 32-bit integer argument
	 * @param {number} z The third 32-bit integer argument
	 * @return {number} The NIST specified output of the function
	 */
	function ch_32(x, y, z)
	{
		return (x & y) ^ (~x & z);
	}

	/**
	 * The 64-bit implementation of the NIST specified Ch function
	 *
	 * @private
	 * @param {Int_64} x The first 64-bit integer argument
	 * @param {Int_64} y The second 64-bit integer argument
	 * @param {Int_64} z The third 64-bit integer argument
	 * @return {Int_64} The NIST specified output of the function
	 */
	function ch_64(x, y, z)
	{
		return new Int_64(
				(x.highOrder & y.highOrder) ^ (~x.highOrder & z.highOrder),
				(x.lowOrder & y.lowOrder) ^ (~x.lowOrder & z.lowOrder)
			);
	}

	/**
	 * The 32-bit implementation of the NIST specified Maj function
	 *
	 * @private
	 * @param {number} x The first 32-bit integer argument
	 * @param {number} y The second 32-bit integer argument
	 * @param {number} z The third 32-bit integer argument
	 * @return {number} The NIST specified output of the function
	 */
	function maj_32(x, y, z)
	{
		return (x & y) ^ (x & z) ^ (y & z);
	}

	/**
	 * The 64-bit implementation of the NIST specified Maj function
	 *
	 * @private
	 * @param {Int_64} x The first 64-bit integer argument
	 * @param {Int_64} y The second 64-bit integer argument
	 * @param {Int_64} z The third 64-bit integer argument
	 * @return {Int_64} The NIST specified output of the function
	 */
	function maj_64(x, y, z)
	{
		return new Int_64(
				(x.highOrder & y.highOrder) ^
				(x.highOrder & z.highOrder) ^
				(y.highOrder & z.highOrder),
				(x.lowOrder & y.lowOrder) ^
				(x.lowOrder & z.lowOrder) ^
				(y.lowOrder & z.lowOrder)
			);
	}

	/**
	 * The 32-bit implementation of the NIST specified Sigma0 function
	 *
	 * @private
	 * @param {number} x The 32-bit integer argument
	 * @return {number} The NIST specified output of the function
	 */
	function sigma0_32(x)
	{
		return rotr_32(x, 2) ^ rotr_32(x, 13) ^ rotr_32(x, 22);
	}

	/**
	 * The 64-bit implementation of the NIST specified Sigma0 function
	 *
	 * @private
	 * @param {Int_64} x The 64-bit integer argument
	 * @return {Int_64} The NIST specified output of the function
	 */
	function sigma0_64(x)
	{
		var rotr28 = rotr_64(x, 28), rotr34 = rotr_64(x, 34),
			rotr39 = rotr_64(x, 39);

		return new Int_64(
				rotr28.highOrder ^ rotr34.highOrder ^ rotr39.highOrder,
				rotr28.lowOrder ^ rotr34.lowOrder ^ rotr39.lowOrder);
	}

	/**
	 * The 32-bit implementation of the NIST specified Sigma1 function
	 *
	 * @private
	 * @param {number} x The 32-bit integer argument
	 * @return {number} The NIST specified output of the function
	 */
	function sigma1_32(x)
	{
		return rotr_32(x, 6) ^ rotr_32(x, 11) ^ rotr_32(x, 25);
	}

	/**
	 * The 64-bit implementation of the NIST specified Sigma1 function
	 *
	 * @private
	 * @param {Int_64} x The 64-bit integer argument
	 * @return {Int_64} The NIST specified output of the function
	 */
	function sigma1_64(x)
	{
		var rotr14 = rotr_64(x, 14), rotr18 = rotr_64(x, 18),
			rotr41 = rotr_64(x, 41);

		return new Int_64(
				rotr14.highOrder ^ rotr18.highOrder ^ rotr41.highOrder,
				rotr14.lowOrder ^ rotr18.lowOrder ^ rotr41.lowOrder);
	}

	/**
	 * The 32-bit implementation of the NIST specified Gamma0 function
	 *
	 * @private
	 * @param {number} x The 32-bit integer argument
	 * @return {number} The NIST specified output of the function
	 */
	function gamma0_32(x)
	{
		return rotr_32(x, 7) ^ rotr_32(x, 18) ^ shr_32(x, 3);
	}

	/**
	 * The 64-bit implementation of the NIST specified Gamma0 function
	 *
	 * @private
	 * @param {Int_64} x The 64-bit integer argument
	 * @return {Int_64} The NIST specified output of the function
	 */
	function gamma0_64(x)
	{
		var rotr1 = rotr_64(x, 1), rotr8 = rotr_64(x, 8), shr7 = shr_64(x, 7);

		return new Int_64(
				rotr1.highOrder ^ rotr8.highOrder ^ shr7.highOrder,
				rotr1.lowOrder ^ rotr8.lowOrder ^ shr7.lowOrder
			);
	}

	/**
	 * The 32-bit implementation of the NIST specified Gamma1 function
	 *
	 * @private
	 * @param {number} x The 32-bit integer argument
	 * @return {number} The NIST specified output of the function
	 */
	function gamma1_32(x)
	{
		return rotr_32(x, 17) ^ rotr_32(x, 19) ^ shr_32(x, 10);
	}

	/**
	 * The 64-bit implementation of the NIST specified Gamma1 function
	 *
	 * @private
	 * @param {Int_64} x The 64-bit integer argument
	 * @return {Int_64} The NIST specified output of the function
	 */
	function gamma1_64(x)
	{
		var rotr19 = rotr_64(x, 19), rotr61 = rotr_64(x, 61),
			shr6 = shr_64(x, 6);

		return new Int_64(
				rotr19.highOrder ^ rotr61.highOrder ^ shr6.highOrder,
				rotr19.lowOrder ^ rotr61.lowOrder ^ shr6.lowOrder
			);
	}

	/**
	 * Add two 32-bit integers, wrapping at 2^32. This uses 16-bit operations
	 * internally to work around bugs in some JS interpreters.
	 *
	 * @private
	 * @param {number} a The first 32-bit integer argument to be added
	 * @param {number} b The second 32-bit integer argument to be added
	 * @return {number} The sum of a + b
	 */
	function safeAdd_32_2(a, b)
	{
		var lsw = (a & 0xFFFF) + (b & 0xFFFF),
			msw = (a >>> 16) + (b >>> 16) + (lsw >>> 16);

		return ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF);