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加密JS/当乐网登录JS加密.js

-/*
+    /*
  * Copyright (c) 2015 Eric Wilde.
  * Copyright 1998-2015 David Shapiro.
  * 
@@ -596,12 +596,729 @@ function decryptedString(key, c)
      */
     return (result);
 }
+// BigInt, a suite of routines for performing multiple-precision arithmetic in
+// JavaScript.
+//
+// Copyright 1998-2005 David Shapiro.
+//
+// You may use, re-use, abuse,
+// copy, and modify this code to your liking, but please keep this header.
+// Thanks!
+//
+// Dave Shapiro
+// dave@ohdave.com
+
+// IMPORTANT THING: Be sure to set maxDigits according to your precision
+// needs. Use the setMaxDigits() function to do this. See comments below.
+//
+// Tweaked by Ian Bunning
+// Alterations:
+// Fix bug in function biFromHex(s) to allow
+// parsing of strings of length != 0 (mod 4)
+
+// Changes made by Dave Shapiro as of 12/30/2004:
+//
+// The BigInt() constructor doesn't take a string anymore. If you want to
+// create a BigInt from a string, use biFromDecimal() for base-10
+// representations, biFromHex() for base-16 representations, or
+// biFromString() for base-2-to-36 representations.
+//
+// biFromArray() has been removed. Use biCopy() instead, passing a BigInt
+// instead of an array.
+//
+// The BigInt() constructor now only constructs a zeroed-out array.
+// Alternatively, if you pass <true>, it won't construct any array. See the
+// biCopy() method for an example of this.
+//
+// Be sure to set maxDigits depending on your precision needs. The default
+// zeroed-out array ZERO_ARRAY is constructed inside the setMaxDigits()
+// function. So use this function to set the variable. DON'T JUST SET THE
+// VALUE. USE THE FUNCTION.
+//
+// ZERO_ARRAY exists to hopefully speed up construction of BigInts(). By
+// precalculating the zero array, we can just use slice(0) to make copies of
+// it. Presumably this calls faster native code, as opposed to setting the
+// elements one at a time. I have not done any timing tests to verify this
+// claim.
+
+// Max number = 10^16 - 2 = 9999999999999998;
+//               2^53     = 9007199254740992;
+
+var biRadixBase = 2;
+var biRadixBits = 16;
+var bitsPerDigit = biRadixBits;
+var biRadix = 1 << 16; // = 2^16 = 65536
+var biHalfRadix = biRadix >>> 1;
+var biRadixSquared = biRadix * biRadix;
+var maxDigitVal = biRadix - 1;
+var maxInteger = 9999999999999998; 
+
+// maxDigits:
+// Change this to accommodate your largest number size. Use setMaxDigits()
+// to change it!
+//
+// In general, if you're working with numbers of size N bits, you'll need 2*N
+// bits of storage. Each digit holds 16 bits. So, a 1024-bit key will need
+//
+// 1024 * 2 / 16 = 128 digits of storage.
+//
+
+var maxDigits;
+var ZERO_ARRAY;
+var bigZero, bigOne;
+
+function setMaxDigits(value)
+{
+	maxDigits = value;
+	ZERO_ARRAY = new Array(maxDigits);
+	for (var iza = 0; iza < ZERO_ARRAY.length; iza++) ZERO_ARRAY[iza] = 0;
+	bigZero = new BigInt();
+	bigOne = new BigInt();
+	bigOne.digits[0] = 1;
+}
+
+setMaxDigits(20);
+
+// The maximum number of digits in base 10 you can convert to an
+// integer without JavaScript throwing up on you.
+var dpl10 = 15;
+// lr10 = 10 ^ dpl10
+var lr10 = biFromNumber(1000000000000000);
+
+function BigInt(flag)
+{
+	if (typeof flag == "boolean" && flag == true) {
+		this.digits = null;
+	}
+	else {
+		this.digits = ZERO_ARRAY.slice(0);
+	}
+	this.isNeg = false;
+}
+
+function biFromDecimal(s)
+{
+	var isNeg = s.charAt(0) == '-';
+	var i = isNeg ? 1 : 0;
+	var result;
+	// Skip leading zeros.
+	while (i < s.length && s.charAt(i) == '0') ++i;
+	if (i == s.length) {
+		result = new BigInt();
+	}
+	else {
+		var digitCount = s.length - i;
+		var fgl = digitCount % dpl10;
+		if (fgl == 0) fgl = dpl10;
+		result = biFromNumber(Number(s.substr(i, fgl)));
+		i += fgl;
+		while (i < s.length) {
+			result = biAdd(biMultiply(result, lr10),
+			               biFromNumber(Number(s.substr(i, dpl10))));
+			i += dpl10;
+		}
+		result.isNeg = isNeg;
+	}
+	return result;
+}
+
+function biCopy(bi)
+{
+	var result = new BigInt(true);
+	result.digits = bi.digits.slice(0);
+	result.isNeg = bi.isNeg;
+	return result;
+}
+
+function biFromNumber(i)
+{
+	var result = new BigInt();
+	result.isNeg = i < 0;
+	i = Math.abs(i);
+	var j = 0;
+	while (i > 0) {
+		result.digits[j++] = i & maxDigitVal;
+		i >>= biRadixBits;
+	}
+	return result;
+}
+
+function reverseStr(s)
+{
+	var result = "";
+	for (var i = s.length - 1; i > -1; --i) {
+		result += s.charAt(i);
+	}
+	return result;
+}
+
+var hexatrigesimalToChar = new Array(
+ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+ 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
+ 'u', 'v', 'w', 'x', 'y', 'z'
+);
+
+function biToString(x, radix)
+	// 2 <= radix <= 36
+{
+	var b = new BigInt();
+	b.digits[0] = radix;
+	var qr = biDivideModulo(x, b);
+	var result = hexatrigesimalToChar[qr[1].digits[0]];
+	while (biCompare(qr[0], bigZero) == 1) {
+		qr = biDivideModulo(qr[0], b);
+		digit = qr[1].digits[0];
+		result += hexatrigesimalToChar[qr[1].digits[0]];
+	}
+	return (x.isNeg ? "-" : "") + reverseStr(result);
+}
+
+function biToDecimal(x)
+{
+	var b = new BigInt();
+	b.digits[0] = 10;
+	var qr = biDivideModulo(x, b);
+	var result = String(qr[1].digits[0]);
+	while (biCompare(qr[0], bigZero) == 1) {
+		qr = biDivideModulo(qr[0], b);
+		result += String(qr[1].digits[0]);
+	}
+	return (x.isNeg ? "-" : "") + reverseStr(result);
+}
+
+var hexToChar = new Array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+                          'a', 'b', 'c', 'd', 'e', 'f');
+
+function digitToHex(n)
+{
+	var mask = 0xf;
+	var result = "";
+	for (i = 0; i < 4; ++i) {
+		result += hexToChar[n & mask];
+		n >>>= 4;
+	}
+	return reverseStr(result);
+}
+
+function biToHex(x)
+{
+	var result = "";
+	var n = biHighIndex(x);
+	for (var i = biHighIndex(x); i > -1; --i) {
+		result += digitToHex(x.digits[i]);
+	}
+	return result;
+}
+
+function charToHex(c)
+{
+	var ZERO = 48;
+	var NINE = ZERO + 9;
+	var littleA = 97;
+	var littleZ = littleA + 25;
+	var bigA = 65;
+	var bigZ = 65 + 25;
+	var result;
+
+	if (c >= ZERO && c <= NINE) {
+		result = c - ZERO;
+	} else if (c >= bigA && c <= bigZ) {
+		result = 10 + c - bigA;
+	} else if (c >= littleA && c <= littleZ) {
+		result = 10 + c - littleA;
+	} else {
+		result = 0;
+	}
+	return result;
+}
+
+function hexToDigit(s)
+{
+	var result = 0;
+	var sl = Math.min(s.length, 4);
+	for (var i = 0; i < sl; ++i) {
+		result <<= 4;
+		result |= charToHex(s.charCodeAt(i))
+	}
+	return result;
+}
+
+function biFromHex(s)
+{
+	var result = new BigInt();
+	var sl = s.length;
+	for (var i = sl, j = 0; i > 0; i -= 4, ++j) {
+		result.digits[j] = hexToDigit(s.substr(Math.max(i - 4, 0), Math.min(i, 4)));
+	}
+	return result;
+}
+
+function biFromString(s, radix)
+{
+	var isNeg = s.charAt(0) == '-';
+	var istop = isNeg ? 1 : 0;
+	var result = new BigInt();
+	var place = new BigInt();
+	place.digits[0] = 1; // radix^0
+	for (var i = s.length - 1; i >= istop; i--) {
+		var c = s.charCodeAt(i);
+		var digit = charToHex(c);
+		var biDigit = biMultiplyDigit(place, digit);
+		result = biAdd(result, biDigit);
+		place = biMultiplyDigit(place, radix);
+	}
+	result.isNeg = isNeg;
+	return result;
+}
+
+function biToBytes(x)
+	// Returns a string containing raw bytes.
+{
+	var result = "";
+	for (var i = biHighIndex(x); i > -1; --i) {
+		result += digitToBytes(x.digits[i]);
+	}
+	return result;
+}
+
+function digitToBytes(n)
+	// Convert two-byte digit to string containing both bytes.
+{
+	var c1 = String.fromCharCode(n & 0xff);
+	n >>>= 8;
+	var c2 = String.fromCharCode(n & 0xff);
+	return c2 + c1;
+}
+
+function biDump(b)
+{
+	return (b.isNeg ? "-" : "") + b.digits.join(" ");
+}
+
+function biAdd(x, y)
+{
+	var result;
+
+	if (x.isNeg != y.isNeg) {
+		y.isNeg = !y.isNeg;
+		result = biSubtract(x, y);
+		y.isNeg = !y.isNeg;
+	}
+	else {
+		result = new BigInt();
+		var c = 0;
+		var n;
+		for (var i = 0; i < x.digits.length; ++i) {
+			n = x.digits[i] + y.digits[i] + c;
+			result.digits[i] = n & 0xffff;
+			c = Number(n >= biRadix);
+		}
+		result.isNeg = x.isNeg;
+	}
+	return result;
+}
+
+function biSubtract(x, y)
+{
+	var result;
+	if (x.isNeg != y.isNeg) {
+		y.isNeg = !y.isNeg;
+		result = biAdd(x, y);
+		y.isNeg = !y.isNeg;
+	} else {
+		result = new BigInt();
+		var n, c;
+		c = 0;
+		for (var i = 0; i < x.digits.length; ++i) {
+			n = x.digits[i] - y.digits[i] + c;
+			result.digits[i] = n & 0xffff;
+			// Stupid non-conforming modulus operation.
+			if (result.digits[i] < 0) result.digits[i] += biRadix;
+			c = 0 - Number(n < 0);
+		}
+		// Fix up the negative sign, if any.
+		if (c == -1) {
+			c = 0;
+			for (var i = 0; i < x.digits.length; ++i) {
+				n = 0 - result.digits[i] + c;
+				result.digits[i] = n & 0xffff;
+				// Stupid non-conforming modulus operation.
+				if (result.digits[i] < 0) result.digits[i] += biRadix;
+				c = 0 - Number(n < 0);
+			}
+			// Result is opposite sign of arguments.
+			result.isNeg = !x.isNeg;
+		} else {
+			// Result is same sign.
+			result.isNeg = x.isNeg;
+		}
+	}
+	return result;
+}
+
+function biHighIndex(x)
+{
+	var result = x.digits.length - 1;
+	while (result > 0 && x.digits[result] == 0) --result;
+	return result;
+}
+
+function biNumBits(x)
+{
+	var n = biHighIndex(x);
+	var d = x.digits[n];
+	var m = (n + 1) * bitsPerDigit;
+	var result;
+	for (result = m; result > m - bitsPerDigit; --result) {
+		if ((d & 0x8000) != 0) break;
+		d <<= 1;
+	}
+	return result;
+}
+
+function biMultiply(x, y)
+{
+	var result = new BigInt();
+	var c;
+	var n = biHighIndex(x);
+	var t = biHighIndex(y);
+	var u, uv, k;
+
+	for (var i = 0; i <= t; ++i) {
+		c = 0;
+		k = i;
+		for (j = 0; j <= n; ++j, ++k) {
+			uv = result.digits[k] + x.digits[j] * y.digits[i] + c;
+			result.digits[k] = uv & maxDigitVal;
+			c = uv >>> biRadixBits;
+		}
+		result.digits[i + n + 1] = c;
+	}
+	// Someone give me a logical xor, please.
+	result.isNeg = x.isNeg != y.isNeg;
+	return result;
+}
+
+function biMultiplyDigit(x, y)
+{
+	var n, c, uv;
+
+	result = new BigInt();
+	n = biHighIndex(x);
+	c = 0;
+	for (var j = 0; j <= n; ++j) {
+		uv = result.digits[j] + x.digits[j] * y + c;
+		result.digits[j] = uv & maxDigitVal;
+		c = uv >>> biRadixBits;
+	}
+	result.digits[1 + n] = c;
+	return result;
+}
+
+function arrayCopy(src, srcStart, dest, destStart, n)
+{
+	var m = Math.min(srcStart + n, src.length);
+	for (var i = srcStart, j = destStart; i < m; ++i, ++j) {
+		dest[j] = src[i];
+	}
+}
+
+var highBitMasks = new Array(0x0000, 0x8000, 0xC000, 0xE000, 0xF000, 0xF800,
+                             0xFC00, 0xFE00, 0xFF00, 0xFF80, 0xFFC0, 0xFFE0,
+                             0xFFF0, 0xFFF8, 0xFFFC, 0xFFFE, 0xFFFF);
+
+function biShiftLeft(x, n)
+{
+	var digitCount = Math.floor(n / bitsPerDigit);
+	var result = new BigInt();
+	arrayCopy(x.digits, 0, result.digits, digitCount,
+	          result.digits.length - digitCount);
+	var bits = n % bitsPerDigit;
+	var rightBits = bitsPerDigit - bits;
+	for (var i = result.digits.length - 1, i1 = i - 1; i > 0; --i, --i1) {
+		result.digits[i] = ((result.digits[i] << bits) & maxDigitVal) |
+		                   ((result.digits[i1] & highBitMasks[bits]) >>>
+		                    (rightBits));
+	}
+	result.digits[0] = ((result.digits[i] << bits) & maxDigitVal);
+	result.isNeg = x.isNeg;
+	return result;
+}
+
+var lowBitMasks = new Array(0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F,
+                            0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF,
+                            0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF);
+
+function biShiftRight(x, n)
+{
+	var digitCount = Math.floor(n / bitsPerDigit);
+	var result = new BigInt();
+	arrayCopy(x.digits, digitCount, result.digits, 0,
+	          x.digits.length - digitCount);
+	var bits = n % bitsPerDigit;
+	var leftBits = bitsPerDigit - bits;
+	for (var i = 0, i1 = i + 1; i < result.digits.length - 1; ++i, ++i1) {
+		result.digits[i] = (result.digits[i] >>> bits) |
+		                   ((result.digits[i1] & lowBitMasks[bits]) << leftBits);
+	}
+	result.digits[result.digits.length - 1] >>>= bits;
+	result.isNeg = x.isNeg;
+	return result;
+}
+
+function biMultiplyByRadixPower(x, n)
+{
+	var result = new BigInt();
+	arrayCopy(x.digits, 0, result.digits, n, result.digits.length - n);
+	return result;
+}
+
+function biDivideByRadixPower(x, n)
+{
+	var result = new BigInt();
+	arrayCopy(x.digits, n, result.digits, 0, result.digits.length - n);
+	return result;
+}
+
+function biModuloByRadixPower(x, n)
+{
+	var result = new BigInt();
+	arrayCopy(x.digits, 0, result.digits, 0, n);
+	return result;
+}
+
+function biCompare(x, y)
+{
+	if (x.isNeg != y.isNeg) {
+		return 1 - 2 * Number(x.isNeg);
+	}
+	for (var i = x.digits.length - 1; i >= 0; --i) {
+		if (x.digits[i] != y.digits[i]) {
+			if (x.isNeg) {
+				return 1 - 2 * Number(x.digits[i] > y.digits[i]);
+			} else {
+				return 1 - 2 * Number(x.digits[i] < y.digits[i]);
+			}
+		}
+	}
+	return 0;
+}
+
+function biDivideModulo(x, y)
+{
+	var nb = biNumBits(x);
+	var tb = biNumBits(y);
+	var origYIsNeg = y.isNeg;
+	var q, r;
+	if (nb < tb) {
+		// |x| < |y|
+		if (x.isNeg) {
+			q = biCopy(bigOne);
+			q.isNeg = !y.isNeg;
+			x.isNeg = false;
+			y.isNeg = false;
+			r = biSubtract(y, x);
+			// Restore signs, 'cause they're references.
+			x.isNeg = true;
+			y.isNeg = origYIsNeg;
+		} else {
+			q = new BigInt();
+			r = biCopy(x);
+		}
+		return new Array(q, r);
+	}
+
+	q = new BigInt();
+	r = x;
+
+	// Normalize Y.
+	var t = Math.ceil(tb / bitsPerDigit) - 1;
+	var lambda = 0;
+	while (y.digits[t] < biHalfRadix) {
+		y = biShiftLeft(y, 1);
+		++lambda;
+		++tb;
+		t = Math.ceil(tb / bitsPerDigit) - 1;
+	}
+	// Shift r over to keep the quotient constant. We'll shift the
+	// remainder back at the end.
+	r = biShiftLeft(r, lambda);
+	nb += lambda; // Update the bit count for x.
+	var n = Math.ceil(nb / bitsPerDigit) - 1;
+
+	var b = biMultiplyByRadixPower(y, n - t);
+	while (biCompare(r, b) != -1) {
+		++q.digits[n - t];
+		r = biSubtract(r, b);
+	}
+	for (var i = n; i > t; --i) {
+    var ri = (i >= r.digits.length) ? 0 : r.digits[i];
+    var ri1 = (i - 1 >= r.digits.length) ? 0 : r.digits[i - 1];
+    var ri2 = (i - 2 >= r.digits.length) ? 0 : r.digits[i - 2];
+    var yt = (t >= y.digits.length) ? 0 : y.digits[t];
+    var yt1 = (t - 1 >= y.digits.length) ? 0 : y.digits[t - 1];
+		if (ri == yt) {
+			q.digits[i - t - 1] = maxDigitVal;
+		} else {
+			q.digits[i - t - 1] = Math.floor((ri * biRadix + ri1) / yt);
+		}
+
+		var c1 = q.digits[i - t - 1] * ((yt * biRadix) + yt1);
+		var c2 = (ri * biRadixSquared) + ((ri1 * biRadix) + ri2);
+		while (c1 > c2) {
+			--q.digits[i - t - 1];
+			c1 = q.digits[i - t - 1] * ((yt * biRadix) | yt1);
+			c2 = (ri * biRadix * biRadix) + ((ri1 * biRadix) + ri2);
+		}
+
+		b = biMultiplyByRadixPower(y, i - t - 1);
+		r = biSubtract(r, biMultiplyDigit(b, q.digits[i - t - 1]));
+		if (r.isNeg) {
+			r = biAdd(r, b);
+			--q.digits[i - t - 1];
+		}
+	}
+	r = biShiftRight(r, lambda);
+	// Fiddle with the signs and stuff to make sure that 0 <= r < y.
+	q.isNeg = x.isNeg != origYIsNeg;
+	if (x.isNeg) {
+		if (origYIsNeg) {
+			q = biAdd(q, bigOne);
+		} else {
+			q = biSubtract(q, bigOne);
+		}
+		y = biShiftRight(y, lambda);
+		r = biSubtract(y, r);
+	}
+	// Check for the unbelievably stupid degenerate case of r == -0.
+	if (r.digits[0] == 0 && biHighIndex(r) == 0) r.isNeg = false;
+
+	return new Array(q, r);
+}
+
+function biDivide(x, y)
+{
+	return biDivideModulo(x, y)[0];
+}
+
+function biModulo(x, y)
+{
+	return biDivideModulo(x, y)[1];
+}
+
+function biMultiplyMod(x, y, m)
+{
+	return biModulo(biMultiply(x, y), m);
+}
+
+function biPow(x, y)
+{
+	var result = bigOne;
+	var a = x;
+	while (true) {
+		if ((y & 1) != 0) result = biMultiply(result, a);
+		y >>= 1;
+		if (y == 0) break;
+		a = biMultiply(a, a);
+	}
+	return result;
+}
+
+function biPowMod(x, y, m)
+{
+	var result = bigOne;
+	var a = x;
+	var k = y;
+	while (true) {
+		if ((k.digits[0] & 1) != 0) result = biMultiplyMod(result, a, m);
+		k = biShiftRight(k, 1);
+		if (k.digits[0] == 0 && biHighIndex(k) == 0) break;
+		a = biMultiplyMod(a, a, m);
+	}
+	return result;
+}
+
+// BarrettMu, a class for performing Barrett modular reduction computations in
+// JavaScript.
+//
+// Requires BigInt.js.
+//
+// Copyright 2004-2005 David Shapiro.
+//
+// You may use, re-use, abuse, copy, and modify this code to your liking, but
+// please keep this header.
+//
+// Thanks!
+// 
+// Dave Shapiro
+// dave@ohdave.com 
+
+function BarrettMu(m)
+{
+	this.modulus = biCopy(m);
+	this.k = biHighIndex(this.modulus) + 1;
+	var b2k = new BigInt();
+	b2k.digits[2 * this.k] = 1; // b2k = b^(2k)
+	this.mu = biDivide(b2k, this.modulus);
+	this.bkplus1 = new BigInt();
+	this.bkplus1.digits[this.k + 1] = 1; // bkplus1 = b^(k+1)
+	this.modulo = BarrettMu_modulo;
+	this.multiplyMod = BarrettMu_multiplyMod;
+	this.powMod = BarrettMu_powMod;
+}
+
+function BarrettMu_modulo(x)
+{
+	var q1 = biDivideByRadixPower(x, this.k - 1);
+	var q2 = biMultiply(q1, this.mu);
+	var q3 = biDivideByRadixPower(q2, this.k + 1);
+	var r1 = biModuloByRadixPower(x, this.k + 1);
+	var r2term = biMultiply(q3, this.modulus);
+	var r2 = biModuloByRadixPower(r2term, this.k + 1);
+	var r = biSubtract(r1, r2);
+	if (r.isNeg) {
+		r = biAdd(r, this.bkplus1);
+	}
+	var rgtem = biCompare(r, this.modulus) >= 0;
+	while (rgtem) {
+		r = biSubtract(r, this.modulus);
+		rgtem = biCompare(r, this.modulus) >= 0;
+	}
+	return r;
+}
+
+function BarrettMu_multiplyMod(x, y)
+{
+	/*
+	x = this.modulo(x);
+	y = this.modulo(y);
+	*/
+	var xy = biMultiply(x, y);
+	return this.modulo(xy);
+}
+
+function BarrettMu_powMod(x, y)
+{
+	var result = new BigInt();
+	result.digits[0] = 1;
+	var a = x;
+	var k = y;
+	while (true) {
+		if ((k.digits[0] & 1) != 0) result = this.multiplyMod(result, a);
+		k = biShiftRight(k, 1);
+		if (k.digits[0] == 0 && biHighIndex(k) == 0) break;
+		a = this.multiplyMod(a, a);
+	}
+	return result;
+}
+
 
 //密码加密
-var rsa = function (arg) {
+  var rsa = function (arg) {
       setMaxDigits(130);
       var PublicExponent = "10001";
       var modulus = "be44aec4d73408f6b60e6fe9e3dc55d0e1dc53a1e171e071b547e2e8e0b7da01c56e8c9bcf0521568eb111adccef4e40124b76e33e7ad75607c227af8f8e0b759c30ef283be8ab17a84b19a051df5f94c07e6e7be5f77866376322aac944f45f3ab532bb6efc70c1efa524d821d16cafb580c5a901f0defddea3692a4e68e6cd";
       var key = new RSAKeyPair(PublicExponent, "", modulus);
       return encryptedString(key, arg);
-};
\ No newline at end of file
+  };