首页 > 代码库 > 登陆验证前对用户名和密码加密之后传输数据---base64加密
登陆验证前对用户名和密码加密之后传输数据---base64加密
以下这种方法是加密传输的简单实现
1，base64.js
/** * * Base64 encode / decode * * */function Base64() { // private property _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; // public method for encoding this.encode = function (input) { var output = ""; var chr1, chr2, chr3, enc1, enc2, enc3, enc4; var i = 0; input = _utf8_encode(input); while (i < input.length) { chr1 = input.charCodeAt(i++); chr2 = input.charCodeAt(i++); chr3 = input.charCodeAt(i++); enc1 = chr1 >> 2; enc2 = ((chr1 & 3) << 4) | (chr2 >> 4); enc3 = ((chr2 & 15) << 2) | (chr3 >> 6); enc4 = chr3 & 63; if (isNaN(chr2)) { enc3 = enc4 = 64; } else if (isNaN(chr3)) { enc4 = 64; } output = output + _keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4); } return output; } // public method for decoding this.decode = function (input) { var output = ""; var chr1, chr2, chr3; var enc1, enc2, enc3, enc4; var i = 0; input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ""); while (i < input.length) { enc1 = _keyStr.indexOf(input.charAt(i++)); enc2 = _keyStr.indexOf(input.charAt(i++)); enc3 = _keyStr.indexOf(input.charAt(i++)); enc4 = _keyStr.indexOf(input.charAt(i++)); chr1 = (enc1 << 2) | (enc2 >> 4); chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); chr3 = ((enc3 & 3) << 6) | enc4; output = output + String.fromCharCode(chr1); if (enc3 != 64) { output = output + String.fromCharCode(chr2); } if (enc4 != 64) { output = output + String.fromCharCode(chr3); } } output = _utf8_decode(output); return output; } // private method for UTF-8 encoding _utf8_encode = function (string) { string = string.replace(/\r\n/g, "\n"); var utftext = ""; for (var n = 0; n < string.length; n++) { var c = string.charCodeAt(n); if (c < 128) { utftext += String.fromCharCode(c); } else if ((c > 127) && (c < 2048)) { utftext += String.fromCharCode((c >> 6) | 192); utftext += String.fromCharCode((c & 63) | 128); } else { utftext += String.fromCharCode((c >> 12) | 224); utftext += String.fromCharCode(((c >> 6) & 63) | 128); utftext += String.fromCharCode((c & 63) | 128); } } return utftext; } // private method for UTF-8 decoding _utf8_decode = function (utftext) { var string = ""; var i = 0; var c = c1 = c2 = 0; while (i < utftext.length) { c = utftext.charCodeAt(i); if (c < 128) { string += String.fromCharCode(c); i++; } else if ((c > 191) && (c < 224)) { c2 = utftext.charCodeAt(i + 1); string += String.fromCharCode(((c & 31) << 6) | (c2 & 63)); i += 2; } else { c2 = utftext.charCodeAt(i + 1); c3 = utftext.charCodeAt(i + 2); string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63)); i += 3; } } return string; }}
2,前端
<button class="btn" onclick="cmdEncrypt()">登录</button>
function cmdEncrypt() { var username = $("#userName").val(); var pwd = $("#password").val(); var b = new Base64(); var params = {}; params.userName64 = b.encode(username); params.password64 = b.encode(pwd); params.validcode = $("#txtCode").val();; params.openID = $("#openID").val(); params.status = $("#status").val(); //alert(params.validcode); $.ajax({ type: "POST", async: false, url: "/Account/UserLogin", datatype: "json", data: params, error: function (msg) { alert(‘error‘)}, success: function (msg) { //alert(msg); if (msg == ‘success‘) { location.href = "/Account/FirstPage?status=" + params.status; } else { $(".tit").html(msg); } } }); }
3,MVC C# 实现
/// <summary> /// Base64解密 /// </summary> /// <param name="codeName">解密采用的编码方式，注意和加密时采用的方式一致</param> /// <param name="result">待解密的密文</param> /// <returns>解密后的字符串</returns> public static string DecodeBase64(Encoding encode, string result) { string decode = ""; byte[] bytes = Convert.FromBase64String(result); try { decode = encode.GetString(bytes); } catch { decode = result; } return decode; }
//用户名和密码解密 string UserName = DecodeBase64(Encoding.UTF8, UserName64); string Pwd = DecodeBase64(Encoding.UTF8, Pwd64);
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