Go homepage(回首页) Upload pictures (上传图片) Write articles (发文字帖)
The author:(作者)归海一刀published in(发表于) 2014/1/30 0:59:22 ASP.NET加密算法(MD5、DES)_[Asp.Net教程]
本文讲 ASP.NET的MD5和DES加密和解密算法#region MD5算法 public string md5(string str, int code) { if (code == 16) //16位MD5加密（取32位加密的9~25字符） { return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower().Substring(8, 16); } if (code == 32) //32位加密 { return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower(); } return "00000000000000000000000000000000"; } #endregion
#region DESEncrypt DES加密 // /// 进行DES加密。 /// /// 要加密的字符串。 /// 密钥，且必须为8位。 /// 以Base64格式返回的加密字符串。 public string DESEncrypt(string pToEncrypt, string sKey) { using (DESCryptoServiceProvider des = new DESCryptoServiceProvider()) { byte[] inputByteArray = Encoding.UTF8.GetBytes(pToEncrypt); des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); System.IO.MemoryStream ms = new System.IO.MemoryStream(); using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write)) { cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); cs.Close(); } string str = Convert.ToBase64String(ms.ToArray()); ms.Close(); return str; } } #endregion
#region DESDecrypt DES解密 /// /// 进行DES解密。 /// /// 要解密的以Base64 /// 密钥，且必须为8位。 /// 已解密的字符串。 public string DESDecrypt(string pToDecrypt, string sKey) { byte[] inputByteArray = Convert.FromBase64String(pToDecrypt); using (DESCryptoServiceProvider des = new DESCryptoServiceProvider()) { des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); System.IO.MemoryStream ms = new System.IO.MemoryStream(); using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write)) { cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); cs.Close(); } string str = Encoding.UTF8.GetString(ms.ToArray()); ms.Close(); return str; } } #endregion来源：http://www.cnblogs.com/hakuci
赞