关于某某大学校园网认证系统的一些工作
2015-12-28 22:10
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由于我们学校的校园网认证是弹出页面的那种,每次输密码都会很蛋疼,于是大一的时候我写过一个宏,每次打开认证界面按一下设定好的键就可以自动填上账号密码了,用了将近三年,效果一直不错。
但最近我发现了一个新的问题,我懒得连浏览器都不想自己打开了。
于是我用selenium又写了一个小工具。Selenium也是一个用于Web应用程序测试的工具。Selenium测试直接运行在浏览器中,就像真正的用户在操作一样。支持的浏览器包括IE、Mozilla Firefox、Mozilla Suite等。
# -*- coding:utf-8 -*- from selenium import webdriver from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.support import expected_conditions as EC from selenium.common.exceptions import NoSuchElementException from selenium.webdriver.common.by import By def submit(): browser = webdriver.Firefox() browser.get("http://61.137.86.87:8080/portalNat444/index.jsp") browser.maximize_window() try: submit_account = WebDriverWait(browser,timeout=10).until(EC.presence_of_element_located((By.ID,'account')),message=u'元素加载超时!') submit_account.send_keys("--YOUR_ACCOUNT--") submit_password = WebDriverWait(browser,timeout=10).until(EC.presence_of_element_located((By.ID,'userPassword')),message=u'元素加载超时!') submit_password.send_keys("--YOUR_PASSWORD--") browser.find_element_by_id("login_button").click() browser.quit() print ("登录成功!") except NoSuchElementException as e: print ("登录失败:") print (e.message) if __name__ == "__main__": submit()
其实这段代码已经可以很好地满足我的需要了。
不过因为这两天在学习PyQt4,所以一顺手就写了一个界面,方便使用。
#coding:utf-8 import sys import os from PyQt4 import QtGui ,Qt ,QtCore from selenium import webdriver from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.support import expected_conditions as EC from selenium.common.exceptions import NoSuchElementException from selenium.webdriver.common.by import By class Window( QtGui.QWidget ): def __init__( self ): super( Window, self ).__init__() self.setWindowTitle( "Auto Submit tool" ) self.setFixedSize(150, 50) gridlayout = QtGui.QGridLayout() button1 = QtGui.QPushButton( "Come on!" ) self.connect( button1, QtCore.SIGNAL( 'clicked()' ), self.submit ) gridlayout.addWidget( button1, 0, 0) self.setLayout( gridlayout ) def OnButton1(self): submit() def submit(self): browser = webdriver.Firefox() browser.get("http://61.137.86.87:8080/portalNat444/index.jsp") browser.maximize_window() try: submit_account = WebDriverWait(browser,timeout=10).until(EC.presence_of_element_located((By.ID,'account')),message=u'元素加载超时!') submit_account.send_keys("--YOUR_ACCOUNT--") submit_password = WebDriverWait(browser,timeout=10).until(EC.presence_of_element_located((By.ID,'userPassword')),message=u'元素加载超时!') submit_password.send_keys("--YOUR_PASSWORD--") browser.find_element_by_id("login_button").click() browser.quit() message = "Successful" QtGui.QMessageBox.about( self, 'State', message ) print ("登录成功!") except NoSuchElementException as e: message = "Login Failed:" + e.message print ("登录失败:") print (e.message) app = QtGui.QApplication( sys.argv ) win = Window() win.show() app.exec_()
之后我们惯例应该生成exe的,不过这个东西貌似受众并不广泛,需要的就自己去生成一下喽,记得加上selenium库~
python setup.py py2exe -p selenium
另外,我在找DOM的id的时候发现了一些羞羞的东西(啊啊啊,我真的只是去看一下id的啊!)
1.index.js:
var publickey = RSAUtils.getKeyPair("10001","","a8a02b821d52d3d0ca90620c78474b78435423be99da83cc190ab5cb5b9b922a4c8ba6b251e78429757cf11cde119e1eacff46fa3bf3b43ef68ceb29897b7aa6b5b1359fef6f35f32b748dc109fd3d09f3443a2cc3b73e99579f3d0fe6a96ccf6a48bc40056a6cac327d309b93b1d61d6f6e8f4a42fc9540f34f1c4a2e053445"); var logFlag = false; //设置登录函数 $(document).ready(function(){ //公告 $('#DialogNote').dialog({ modal:true, title:'XX大学上网注意事项', iconCls:'icon-help', buttons:[ { text:'确 认 ', handler:function() { $('#DialogNote').dialog('close'); } }] }); //获取公告内容 $.get('gonggao/usingNote.txt',function(data){$('#Notes').html(data)}); //禁用右键 $('body').bind('contextmenu', function() { return false; }); $("#login_button").click(function(){ if(true == logFlag) { alert("正在提交服务器,请稍后!"); return; } if(("" == $("#account").val())||(""==$("#userPassword").val())) { alert("账号或密码不能空"); return; } // if(""==$('#validateCode').val()) // { // alert("校验码不能空"); // return; // } if(($("#account").val().length>32)||($("#userPassword").val().length>32)) { alert("账号或密码超长"); return; } if((""==$("#userIntranetAddress").val())||("null"==$("#userIntranetAddress").val())) { alert('无法获取您的网络地址,请输入任意其它网站从网关处导航至本认证页面'); return; } if((""==$("#brasAddress").val())||("null"==$("#brasAddress").val())) { alert('无法获取您接入点设备地址,请输入任意其它网站从网关处导航至本认证页面'); return; } //设置避免重复提交 logFlag = true ; $("#account").attr("readonly",true); $("#userPassword").attr("readonly",true); $.ajax({ url:'AccessServices/login', data:{ 'accountID':$("#account").val()+'@zndx.inter', 'password':RSAUtils.encryptedString(publickey, encodeURIComponent($("#userPassword").val())), // 'validateCode':$('#validateCode').val(), 'brasAddress':$("#brasAddress").val(), 'userIntranetAddress':$("#userIntranetAddress").val() }, type:'post', dataType:'json', contentType:'application/x-www-form-urlencoded;charset=utf-8', cache:false, success:function(data){ logFlag = false ; $("#account").attr("readonly",false); $("#userPassword").attr("readonly",false); switch (data.resultCode){ case '0': window.location="main2.jsp"; break; case '1': if(data.resultDescribe == null || data.resultDescribe =="") { alert('其他原因认证拒绝'); } else { alert(data.resultDescribe); } break; case '2': alert('用户连接已经存在'); break; case '3': alert('接入服器务繁忙,稍后重试'); break; case '4': alert('未知错误'); break; case '6': alert('认证响应超时'); break; case '7': alert('捕获用户网络地址错误'); break; case '8': alert('服务器网络连接异常'); break; case '9': alert('认证服务脚本执行异常'); break; case '10': alert('校验码错误'); // reloadValidateCode(); break; case '11': alert('您的密码相对简单,帐号存在被盗风险,请及时修改成强度高的密码'); window.location="main2.jsp"; break; case '12': alert('无法获取您的网络地址,请输入任意其它网站从网关处导航至本认证页面'); break; case '13': alert('无法获取您接入点设备地址,请输入任意其它网站从网关处导航至本认证页面'); break; case '14': alert('无法获取您套餐信息'); break; case '16': alert('请输入任意其它网站导航至本认证页面,并按正常PORTAL正常流程认证'); break; case '17': alert('连接已失效,请输入任意其它网站从网关处导航至本认证页面'); break; default: alert('未知错误'); break; } }, error:function(xhr){ logFlag = false ; $("#account").attr("readonly",false); $("#userPassword").attr("readonly",false); alert('网络异常,服务脚本执行异常'); } }); }); }); //校验码 function reloadValidateCode(){ var timeStr = "?time=" + (new Date()).getTime(); var url = "./CodeServlet"+timeStr; document.getElementById("validateCodeImg").src = url; } //重置 function resetVal() { $("#account").val(''); $("#userPassword").val(''); return false; } //国际化 function i18n(type) { if('1'==type) { $("span[id=userid_span]").html("帐 号:"); $("span[id=password_span]").html("密 码:"); $("span[id=validateCode_span]").html("验证码:"); } else if('2'==type) { $("span[id=userid_span]").html("Userid:"); $("span[id=password_span]").html("Password:"); $("span[id=validateCode_span]").html("ValidateCode:"); } }
2.security.js:
/* * RSA, a suite of routines for performing RSA public-key computations in JavaScript. * Copyright 1998-2005 David Shapiro. * Dave Shapiro * dave@ohdave.com * changed by Fuchun, 2010-05-06 * fcrpg2005@gmail.com */ (function($w) { if(typeof $w.RSAUtils === 'undefined') var RSAUtils = $w.RSAUtils = {}; 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; var BigInt = $w.BigInt = function(flag) { if (typeof flag == "boolean" && flag == true) { this.digits = null; } else { this.digits = ZERO_ARRAY.slice(0); } this.isNeg = false; }; RSAUtils.setMaxDigits = function(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; }; RSAUtils.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; RSAUtils.biFromNumber = function(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 = Math.floor(i / biRadix); } return result; }; //lr10 = 10 ^ dpl10 var lr10 = RSAUtils.biFromNumber(1000000000000000); RSAUtils.biFromDecimal = function(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 = RSAUtils.biFromNumber(Number(s.substr(i, fgl))); i += fgl; while (i < s.length) { result = RSAUtils.biAdd(RSAUtils.biMultiply(result, lr10), RSAUtils.biFromNumber(Number(s.substr(i, dpl10)))); i += dpl10; } result.isNeg = isNeg; } return result; }; RSAUtils.biCopy = function(bi) { var result = new BigInt(true); result.digits = bi.digits.slice(0); result.isNeg = bi.isNeg; return result; }; RSAUtils.reverseStr = function(s) { var result = ""; for (var i = s.length - 1; i > -1; --i) { result += s.charAt(i); } return result; }; var hexatrigesimalToChar = [ '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' ]; RSAUtils.biToString = function(x, radix) { // 2 <= radix <= 36 var b = new BigInt(); b.digits[0] = radix; var qr = RSAUtils.biDivideModulo(x, b); var result = hexatrigesimalToChar[qr[1].digits[0]]; while (RSAUtils.biCompare(qr[0], bigZero) == 1) { qr = RSAUtils.biDivideModulo(qr[0], b); digit = qr[1].digits[0]; result += hexatrigesimalToChar[qr[1].digits[0]]; } return (x.isNeg ? "-" : "") + RSAUtils.reverseStr(result); }; RSAUtils.biToDecimal = function(x) { var b = new BigInt(); b.digits[0] = 10; var qr = RSAUtils.biDivideModulo(x, b); var result = String(qr[1].digits[0]); while (RSAUtils.biCompare(qr[0], bigZero) == 1) { qr = RSAUtils.biDivideModulo(qr[0], b); result += String(qr[1].digits[0]); } return (x.isNeg ? "-" : "") + RSAUtils.reverseStr(result); }; var hexToChar = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f']; RSAUtils.digitToHex = function(n) { var mask = 0xf; var result = ""; for (i = 0; i < 4; ++i) { result += hexToChar[n & mask]; n >>>= 4; } return RSAUtils.reverseStr(result); }; RSAUtils.biToHex = function(x) { var result = ""; var n = RSAUtils.biHighIndex(x); for (var i = RSAUtils.biHighIndex(x); i > -1; --i) { result += RSAUtils.digitToHex(x.digits[i]); } return result; }; RSAUtils.charToHex = function(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; }; RSAUtils.hexToDigit = function(s) { var result = 0; var sl = Math.min(s.length, 4); for (var i = 0; i < sl; ++i) { result <<= 4; result |= RSAUtils.charToHex(s.charCodeAt(i)); } return result; }; RSAUtils.biFromHex = function(s) { var result = new BigInt(); var sl = s.length; for (var i = sl, j = 0; i > 0; i -= 4, ++j) { result.digits[j] = RSAUtils.hexToDigit(s.substr(Math.max(i - 4, 0), Math.min(i, 4))); } return result; }; RSAUtils.biFromString = function(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 = RSAUtils.charToHex(c); var biDigit = RSAUtils.biMultiplyDigit(place, digit); result = RSAUtils.biAdd(result, biDigit); place = RSAUtils.biMultiplyDigit(place, radix); } result.isNeg = isNeg; return result; }; RSAUtils.biDump = function(b) { return (b.isNeg ? "-" : "") + b.digits.join(" "); }; RSAUtils.biAdd = function(x, y) { var result; if (x.isNeg != y.isNeg) { y.isNeg = !y.isNeg; result = RSAUtils.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 % biRadix; c = Number(n >= biRadix); } result.isNeg = x.isNeg; } return result; }; RSAUtils.biSubtract = function(x, y) { var result; if (x.isNeg != y.isNeg) { y.isNeg = !y.isNeg; result = RSAUtils.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 % biRadix; // 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 % biRadix; // 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; }; RSAUtils.biHighIndex = function(x) { var result = x.digits.length - 1; while (result > 0 && x.digits[result] == 0) --result; return result; }; RSAUtils.biNumBits = function(x) { var n = RSAUtils.biHighIndex(x); var d = x.digits ; var m = (n + 1) * bitsPerDigit; var result; for (result = m; result > m - bitsPerDigit; --result) { if ((d & 0x8000) != 0) break; d <<= 1; } return result; }; RSAUtils.biMultiply = function(x, y) { var result = new BigInt(); var c; var n = RSAUtils.biHighIndex(x); var t = RSAUtils.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; //c = Math.floor(uv / biRadix); } result.digits[i + n + 1] = c; } // Someone give me a logical xor, please. result.isNeg = x.isNeg != y.isNeg; return result; }; RSAUtils.biMultiplyDigit = function(x, y) { var n, c, uv; result = new BigInt(); n = RSAUtils.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; //c = Math.floor(uv / biRadix); } result.digits[1 + n] = c; return result; }; RSAUtils.arrayCopy = function(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 = [0x0000, 0x8000, 0xC000, 0xE000, 0xF000, 0xF800, 0xFC00, 0xFE00, 0xFF00, 0xFF80, 0xFFC0, 0xFFE0, 0xFFF0, 0xFFF8, 0xFFFC, 0xFFFE, 0xFFFF]; RSAUtils.biShiftLeft = function(x, n) { var digitCount = Math.floor(n / bitsPerDigit); var result = new BigInt(); RSAUtils.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 = [0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF]; RSAUtils.biShiftRight = function(x, n) { var digitCount = Math.floor(n / bitsPerDigit); var result = new BigInt(); RSAUtils.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; }; RSAUtils.biMultiplyByRadixPower = function(x, n) { var result = new BigInt(); RSAUtils.arrayCopy(x.digits, 0, result.digits, n, result.digits.length - n); return result; }; RSAUtils.biDivideByRadixPower = function(x, n) { var result = new BigInt(); RSAUtils.arrayCopy(x.digits, n, result.digits, 0, result.digits.length - n); return result; }; RSAUtils.biModuloByRadixPower = function(x, n) { var result = new BigInt(); RSAUtils.arrayCopy(x.digits, 0, result.digits, 0, n); return result; }; RSAUtils.biCompare = function(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; }; RSAUtils.biDivideModulo = function(x, y) { var nb = RSAUtils.biNumBits(x); var tb = RSAUtils.biNumBits(y); var origYIsNeg = y.isNeg; var q, r; if (nb < tb) { // |x| < |y| if (x.isNeg) { q = RSAUtils.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 = RSAUtils.biCopy(x); } return [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 = RSAUtils.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 = RSAUtils.biShiftLeft(r, lambda); nb += lambda; // Update the bit count for x. var n = Math.ceil(nb / bitsPerDigit) - 1; var b = RSAUtils.biMultiplyByRadixPower(y, n - t); while (RSAUtils.biCompare(r, b) != -1) { ++q.digits[n - t]; r = RSAUtils.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 = RSAUtils.biMultiplyByRadixPower(y, i - t - 1); r = RSAUtils.biSubtract(r, RSAUtils.biMultiplyDigit(b, q.digits[i - t - 1])); if (r.isNeg) { r = RSAUtils.biAdd(r, b); --q.digits[i - t - 1]; } } r = RSAUtils.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 = RSAUtils.biAdd(q, bigOne); } else { q = RSAUtils.biSubtract(q, bigOne); } y = RSAUtils.biShiftRight(y, lambda); r = RSAUtils.biSubtract(y, r); } // Check for the unbelievably stupid degenerate case of r == -0. if (r.digits[0] == 0 && RSAUtils.biHighIndex(r) == 0) r.isNeg = false; return [q, r]; }; RSAUtils.biDivide = function(x, y) { return RSAUtils.biDivideModulo(x, y)[0]; }; RSAUtils.biModulo = function(x, y) { return RSAUtils.biDivideModulo(x, y)[1]; }; RSAUtils.biMultiplyMod = function(x, y, m) { return RSAUtils.biModulo(RSAUtils.biMultiply(x, y), m); }; RSAUtils.biPow = function(x, y) { var result = bigOne; var a = x; while (true) { if ((y & 1) != 0) result = RSAUtils.biMultiply(result, a); y >>= 1; if (y == 0) break; a = RSAUtils.biMultiply(a, a); } return result; }; RSAUtils.biPowMod = function(x, y, m) { var result = bigOne; var a = x; var k = y; while (true) { if ((k.digits[0] & 1) != 0) result = RSAUtils.biMultiplyMod(result, a, m); k = RSAUtils.biShiftRight(k, 1); if (k.digits[0] == 0 && RSAUtils.biHighIndex(k) == 0) break; a = RSAUtils.biMultiplyMod(a, a, m); } return result; }; $w.BarrettMu = function(m) { this.modulus = RSAUtils.biCopy(m); this.k = RSAUtils.biHighIndex(this.modulus) + 1; var b2k = new BigInt(); b2k.digits[2 * this.k] = 1; // b2k = b^(2k) this.mu = RSAUtils.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 $dmath = RSAUtils; var q1 = $dmath.biDivideByRadixPower(x, this.k - 1); var q2 = $dmath.biMultiply(q1, this.mu); var q3 = $dmath.biDivideByRadixPower(q2, this.k + 1); var r1 = $dmath.biModuloByRadixPower(x, this.k + 1); var r2term = $dmath.biMultiply(q3, this.modulus); var r2 = $dmath.biModuloByRadixPower(r2term, this.k + 1); var r = $dmath.biSubtract(r1, r2); if (r.isNeg) { r = $dmath.biAdd(r, this.bkplus1); } var rgtem = $dmath.biCompare(r, this.modulus) >= 0; while (rgtem) { r = $dmath.biSubtract(r, this.modulus); rgtem = $dmath.biCompare(r, this.modulus) >= 0; } return r; } function BarrettMu_multiplyMod(x, y) { /* x = this.modulo(x); y = this.modulo(y); */ var xy = RSAUtils.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 = RSAUtils.biShiftRight(k, 1); if (k.digits[0] == 0 && RSAUtils.biHighIndex(k) == 0) break; a = this.multiplyMod(a, a); } return result; } var RSAKeyPair = function(encryptionExponent, decryptionExponent, modulus) { var $dmath = RSAUtils; this.e = $dmath.biFromHex(encryptionExponent); this.d = $dmath.biFromHex(decryptionExponent); this.m = $dmath.biFromHex(modulus); // We can do two bytes per digit, so // chunkSize = 2 * (number of digits in modulus - 1). // Since biHighIndex returns the high index, not the number of digits, 1 has // already been subtracted. this.chunkSize = 2 * $dmath.biHighIndex(this.m); this.radix = 16; this.barrett = new $w.BarrettMu(this.m); }; RSAUtils.getKeyPair = function(encryptionExponent, decryptionExponent, modulus) { return new RSAKeyPair(encryptionExponent, decryptionExponent, modulus); }; if(typeof $w.twoDigit === 'undefined') { $w.twoDigit = function(n) { return (n < 10 ? "0" : "") + String(n); }; } // Altered by Rob Saunders (rob@robsaunders.net). New routine pads the // string after it has been converted to an array. This fixes an // incompatibility with Flash MX's ActionScript. RSAUtils.encryptedString = function(key, s) { var a = []; var sl = s.length; var i = 0; while (i < sl) { a[i] = s.charCodeAt(i); i++; } while (a.length % key.chunkSize != 0) { a[i++] = 0; } var al = a.length; var result = ""; var j, k, block; for (i = 0; i < al; i += key.chunkSize) { block = new BigInt(); j = 0; for (k = i; k < i + key.chunkSize; ++j) { block.digits[j] = a[k++]; block.digits[j] += a[k++] << 8; } var crypt = key.barrett.powMod(block, key.e); var text = key.radix == 16 ? RSAUtils.biToHex(crypt) : RSAUtils.biToString(crypt, key.radix); result += text + " "; } return result.substring(0, result.length - 1); // Remove last space. }; RSAUtils.decryptedString = function(key, s) { var blocks = s.split(" "); var result = ""; var i, j, block; for (i = 0; i < blocks.length; ++i) { var bi; if (key.radix == 16) { bi = RSAUtils.biFromHex(blocks[i]); } else { bi = RSAUtils.biFromString(blocks[i], key.radix); } block = key.barrett.powMod(bi, key.d); for (j = 0; j <= RSAUtils.biHighIndex(block); ++j) { result += String.fromCharCode(block.digits[j] & 255, block.digits[j] >> 8); } } // Remove trailing null, if any. if (result.charCodeAt(result.length - 1) == 0) { result = result.substring(0, result.length - 1); } return result; }; RSAUtils.setMaxDigits(130); })(window);
然后该怎么玩懂的人都懂哈,为了不被老湿请去喝茶,就写到这里吧。
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