可以在客户端对密码进行简单的64位加密，服务端对应使用64位解密即可。
1 /** 2 * 3 * Base64 encode / decode 4 * 5 * @author 6 7 * @date 8 9 * @email 10 */ 11 12 function Base64() { 13 14 // private property 15 _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; 16 17 // public method for encoding 18 this.encode = function (input) { 19 var output = ""; 20 var chr1, chr2, chr3, enc1, enc2, enc3, enc4; 21 var i = 0; 22 input = _utf8_encode(input); 23 while (i < input.length) { 24 chr1 = input.charCodeAt(i++); 25 chr2 = input.charCodeAt(i++); 26 chr3 = input.charCodeAt(i++); 27 enc1 = chr1 >> 2; 28 enc2 = ((chr1 & 3) << 4) | (chr2 >> 4); 29 enc3 = ((chr2 & 15) << 2) | (chr3 >> 6); 30 enc4 = chr3 & 63; 31 if (isNaN(chr2)) { 32 enc3 = enc4 = 64; 33 } else if (isNaN(chr3)) { 34 enc4 = 64; 35 } 36 output = output + 37 _keyStr.charAt(enc1) + _keyStr.charAt(enc2) + 38 _keyStr.charAt(enc3) + _keyStr.charAt(enc4); 39 } 40 return output; 41 } 42 43 44 45 // private method for UTF-8 encoding 46 _utf8_encode = function (string) { 47 string = string.replace(/ /g," "); 48 var utftext = ""; 49 for (var n = 0; n < string.length; n++) { 50 var c = string.charCodeAt(n); 51 if (c < 128) { 52 utftext += String.fromCharCode(c); 53 } else if((c > 127) && (c < 2048)) { 54 utftext += String.fromCharCode((c >> 6) | 192); 55 utftext += String.fromCharCode((c & 63) | 128); 56 } else { 57 utftext += String.fromCharCode((c >> 12) | 224); 58 utftext += String.fromCharCode(((c >> 6) & 63) | 128); 59 utftext += String.fromCharCode((c & 63) | 128); 60 } 61 } 62 return utftext; 63 } 64 65 //只使用加密方法，解密方法暂时注释，后期删除 66 // public method for decoding 67 this.decode = function (input) { 68 var output = ""; 69 var chr1, chr2, chr3; 70 var enc1, enc2, enc3, enc4; 71 var i = 0; 72 input = input.replace(/[^A-Za-z0-9+/=]/g, ""); 73 while (i < input.length) { 74 enc1 = _keyStr.indexOf(input.charAt(i++)); 75 enc2 = _keyStr.indexOf(input.charAt(i++)); 76 enc3 = _keyStr.indexOf(input.charAt(i++)); 77 enc4 = _keyStr.indexOf(input.charAt(i++)); 78 chr1 = (enc1 << 2) | (enc2 >> 4); 79 chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); 80 chr3 = ((enc3 & 3) << 6) | enc4; 81 output = output + String.fromCharCode(chr1); 82 if (enc3 != 64) { 83 output = output + String.fromCharCode(chr2); 84 } 85 if (enc4 != 64) { 86 output = output + String.fromCharCode(chr3); 87 } 88 } 89 output = _utf8_decode(output); 90 return output; 91 } 92 93 // private method for UTF-8 decoding 94 _utf8_decode = function (utftext) { 95 var string = ""; 96 var i = 0; 97 var c = c1 = c2 = 0; 98 while ( i < utftext.length ) { 99 c = utftext.charCodeAt(i); 100 if (c < 128) { 101 string += String.fromCharCode(c); 102 i++; 103 } else if((c > 191) && (c < 224)) { 104 c2 = utftext.charCodeAt(i+1); 105 string += String.fromCharCode(((c & 31) << 6) | (c2 & 63)); 106 i += 2; 107 } else { 108 c2 = utftext.charCodeAt(i+1); 109 c3 = utftext.charCodeAt(i+2); 110 string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63)); 111 i += 3; 112 } 113 } 114 return string; 115 } 116 }
使用方法：
var encoder = new Base64(); //64加密 userPwd = encoder.encode(userPwd);