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| | | namespace Common |
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| | | { |
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| | | public class DESEncrypt |
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| | | { |
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| | | public class DESEncrypt |
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| | | { |
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| | | //加密串 |
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| | | //public static string encryptStr = "litianping"; |
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| | | public static string encryptStr = "abcDEF123@$@"; |
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| | | |
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| | | public static string Encrypt(string Text) |
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| | | { |
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| | | return DESEncrypt.Encrypt(Text, encryptStr ); |
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| | | } |
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| | | |
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| | | public static string Encrypt(string Text, string sKey) |
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| | | { |
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| | | DESCryptoServiceProvider cryptoServiceProvider = new DESCryptoServiceProvider(); |
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| | | byte[] bytes = Encoding.Default.GetBytes(Text); |
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| | | //c#的DES加密是key为8位 |
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| | | cryptoServiceProvider.Key = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); |
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| | | cryptoServiceProvider.IV = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); |
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| | | MemoryStream memoryStream = new MemoryStream(); |
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| | | CryptoStream cryptoStream = new CryptoStream((Stream) memoryStream, cryptoServiceProvider.CreateEncryptor(), CryptoStreamMode.Write); |
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| | | cryptoStream.Write(bytes, 0, bytes.Length); |
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| | | cryptoStream.FlushFinalBlock(); |
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| | | StringBuilder stringBuilder = new StringBuilder(); |
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| | | foreach (byte num in memoryStream.ToArray()) |
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| | | stringBuilder.AppendFormat("{0:X2}", (object) num); |
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| | | return stringBuilder.ToString(); |
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| | | } |
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| | | |
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| | | public static string Decrypt(string Text) |
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| | | { |
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| | | return DESEncrypt.Decrypt(Text, encryptStr); |
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| | | } |
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| | | |
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| | | public static string Decrypt(string Text, string sKey) |
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| | | { |
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| | | DESCryptoServiceProvider cryptoServiceProvider = new DESCryptoServiceProvider(); |
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| | | int length = Text.Length / 2; |
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| | | byte[] buffer = new byte[length]; |
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| | | for (int index = 0; index < length; ++index) |
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| | | { |
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| | | int num = Convert.ToInt32(Text.Substring(index * 2, 2), 16); |
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| | | buffer[index] = (byte) num; |
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| | | { |
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| | | return DESEncrypt.Encrypt(Text, encryptStr); |
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| | | } |
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| | | |
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| | | public static string Encrypt(string Text, string sKey) |
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| | | { |
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| | | DESCryptoServiceProvider cryptoServiceProvider = new DESCryptoServiceProvider(); |
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| | | byte[] bytes = Encoding.Default.GetBytes(Text); |
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| | | //c#的DES加密是key为8位 |
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| | | cryptoServiceProvider.Key = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); |
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| | | cryptoServiceProvider.IV = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); |
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| | | MemoryStream memoryStream = new MemoryStream(); |
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| | | CryptoStream cryptoStream = new CryptoStream((Stream) memoryStream, cryptoServiceProvider.CreateDecryptor(), CryptoStreamMode.Write); |
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| | | cryptoStream.Write(buffer, 0, buffer.Length); |
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| | | cryptoStream.FlushFinalBlock(); |
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| | | return Encoding.Default.GetString(memoryStream.ToArray()); |
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| | | cryptoServiceProvider.IV = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); |
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| | | MemoryStream memoryStream = new MemoryStream(); |
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| | | CryptoStream cryptoStream = new CryptoStream((Stream)memoryStream, cryptoServiceProvider.CreateEncryptor(), CryptoStreamMode.Write); |
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| | | cryptoStream.Write(bytes, 0, bytes.Length); |
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| | | cryptoStream.FlushFinalBlock(); |
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| | | StringBuilder stringBuilder = new StringBuilder(); |
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| | | foreach (byte num in memoryStream.ToArray()) |
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| | | stringBuilder.AppendFormat("{0:X2}", (object)num); |
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| | | return stringBuilder.ToString(); |
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| | | } |
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| | | |
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| | | public static string Decrypt(string Text) |
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| | | { |
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| | | return DESEncrypt.Decrypt(Text, encryptStr); |
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| | | } |
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| | | |
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| | | public static string Decrypt(string Text, string sKey) |
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| | | { |
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| | | DESCryptoServiceProvider cryptoServiceProvider = new DESCryptoServiceProvider(); |
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| | | int length = Text.Length / 2; |
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| | | byte[] buffer = new byte[length]; |
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| | | for (int index = 0; index < length; ++index) |
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| | | { |
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| | | int num = Convert.ToInt32(Text.Substring(index * 2, 2), 16); |
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| | | buffer[index] = (byte)num; |
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| | | } |
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| | | //c#的DES加密是key为8位 |
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| | | cryptoServiceProvider.Key = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); |
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| | | cryptoServiceProvider.IV = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); |
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| | | MemoryStream memoryStream = new MemoryStream(); |
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| | | CryptoStream cryptoStream = new CryptoStream((Stream)memoryStream, cryptoServiceProvider.CreateDecryptor(), CryptoStreamMode.Write); |
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| | | cryptoStream.Write(buffer, 0, buffer.Length); |
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| | | cryptoStream.FlushFinalBlock(); |
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| | | return Encoding.Default.GetString(memoryStream.ToArray()); |
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| | | } |
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| | | } |
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| | | } |
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| | | } |
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