最近闲来无事给自己写了家庭财务收支管理系统，也就包含支出管理，收入管理和一些统计功能。

先说登录模块，因为涉及GET和POST请求，这些东西都是能被监控和抓取的所以就考虑这使用RSA加密解密方式传输用户名和密码参数，页面JS如下：

//与后台交互获取公钥function getPublicKey() { var pubKey = ''; if ($.cookie('publicKey') == null) { $.ajax({ url: "/Account/GetRsaPublicKey", type: "get", contentType: "application/x-mon { /// <summary> /// 产生一组RSA公钥、私钥 /// </summary> /// <returns></returns> public static Dictionary<string, string> CreateRsaKeyPair() { var keyPair = new Dictionary<string, string>(); var rsaProvider = new RSACryptoServiceProvider(1024); RSAParameters parameter = rsaProvider.ExportParameters(true); keyPair.Add("PUBLIC", BytesToHexString(parameter.Exponent) + "," + BytesToHexString(parameter.Modulus)); keyPair.Add("PRIVATE", rsaProvider.ToXmlString(true)); return keyPair; } /// <summary> /// RSA解密字符串 /// </summary> /// <param name="encryptData">密文</param> /// <param name="privateKey">私钥</param> /// <returns>明文</returns> public static string DecryptRSA(string encryptData, string privateKey) { string decryptData = ""; try { var provider = new RSACryptoServiceProvider(); provider.FromXmlString(privateKey); byte[] result = provider.Decrypt(HexStringToBytes(encryptData), false); ASCIIEncoding enc = new ASCIIEncoding(); decryptData = enc.GetString(result); } catch (Exception e) { throw new Exception("RSA解密出错!", e); } return decryptData; } private static string BytesToHexString(byte[] input) { StringBuilder hexString = new StringBuilder(64); for (int i = 0; i < input.Length; i++) { hexString.Append(String.Format("{0:X2}", input[i])); } return hexString.ToString(); } public static byte[] HexStringToBytes(string hex) { if (hex.Length == 0) { return new byte[] { 0 }; } if (hex.Length % 2 == 1) { hex = "0" + hex; } byte[] result = new byte[hex.Length / 2]; for (int i = 0; i < hex.Length / 2; i++) { result[i] = byte.Parse(hex.Substring(2 * i, 2), System.Globalization.NumberStyles.AllowHexSpecifier); } return result; } private static ObjectCache Cache { get { return MemoryCache.Default; } } /// <summary> /// 获取缓存 /// </summary> /// <param name="key"></param> /// <returns></returns> public static object CacheGet(string key) { return Cache[key]; } /// <summary> /// 设置缓存 /// </summary> /// <param name="key"></param> /// <param name="data"></param> /// <param name="cacheTime"></param> public static void CacheSet(string key, object data, int cacheTime) { CacheItemPolicy policy = new CacheItemPolicy(); policy.AbsoluteExpiration = DateTime.Now + TimeSpan.FromMinutes(cacheTime); Cache.Add(new CacheItem(key, data), policy); } /// <summary> /// 判断缓存是否存在 /// </summary> /// <param name="key"></param> /// <returns></returns> public static bool IsSet(string key) { return (Cache[key] != null); } /// <summary> /// 缓存失效 /// </summary> /// <param name="key"></param> public static void CacheRemove(string key) { Cache.Remove(key); } /// <summary> /// 对字符串进行加密（不可逆） /// </summary> /// <param name="Password">要加密的字符串</param> /// <param name="Format">加密方式,0 is SHA1,1 is MD5</param> /// <returns></returns> public static string NoneEncrypt(string Password, int Format) { string strResult = ""; switch (Format) { case 0: strResult = FormsAuthentication.HashPasswordForStoringInConfigFile(Password, "SHA1"); break; case 1: strResult = FormsAuthentication.HashPasswordForStoringInConfigFile(Password, "MD5"); break; default: strResult = Password; break; } return strResult; } }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。