ASP.NET 1.1示例代码：
object machineKeyConfig = HttpContext.Current.GetConfig("system.web/machineKey");
//得到System.Web.Configuration.MachineKey+MachineKeyConfig的实例,
MachineKeyConfig是MachineKey的嵌套类
Type machineKeyType = machineKeyConfig.GetType().Assembly.GetType
("System.Web.Configuration.MachineKey");
//得到System.Web.Configuration.MachineKey类型
BindingFlags bf = BindingFlags.NonPublic | BindingFlags.Static;
//设置绑定标志
MethodInfo byteArrayToHexString = machineKeyType.GetMethod("ByteArrayToHexString", bf);
//通过反射获取MachineKey中的ByteArrayToHexString方法,
该方法用于将字节数组转换为16进制表示的字符串
Byte[] validationKey = (Byte[])machineKeyType.GetField("s_validationKey",bf).
GetValue(machineKeyConfig);
//获取验证密钥字节数组
SymmetricAlgorithm algorithm = (SymmetricAlgorithm)machineKeyType.
GetField("s_oDes",bf).GetValue(machineKeyConfig);
Byte[] decryptionKey = algorithm.Key;
//获取加密密钥字节数组
string ValidationKey = (string)byteArrayToHexString.Invoke(null
,new object[]{validationKey,validationKey.Length});
//将验证密钥字节数组转换为16进制表示的字符串
string DecryptionKey = (string)byteArrayToHexString.Invoke(null,new
object[]{decryptionKey,decryptionKey.Length});
//将加密密钥字节数组转换为16进制表示的字符串
ASP.NET 2.0示例代码：System.Web.Configuration.MachineKeySection machineKeySection = new
System.Web.Configuration.MachineKeySection();
//直接创建MachineKeySection的实例,ASP.NET 2.0中用machineKeySection取代ASP.NET 1.1
中的MachineKey,并且可以直接访问,没有被internal保护。
Type type = typeof(System.Web.Configuration.MachineKeySection);//或者
machineKeySection.GetType(); PropertyInfo propertyInfo = type.GetProperty
("ValidationKeyInternal", BindingFlags.NonPublic | BindingFlags.Instance);
Byte[] validationKeyArray = (Byte[])propertyInfo.GetValue(machineKeySection, null);
//获取随机生成的验证密钥字节数组
propertyInfo = type.GetProperty("DecryptionKeyInternal", BindingFlags.NonPublic |
BindingFlags.Instance);
Byte[] decryptionKeyArray = (Byte[])propertyInfo.GetValue(machineKeySection, null);
//获取随机生成的加密密钥字节数
MethodInfo byteArrayToHexString = type.GetMethod("ByteArrayToHexString",
BindingFlags.Static | BindingFlags.NonPublic);
//通过反射获取MachineKeySection中的ByteArrayToHexString方法,
该方法用于将字节数组转换为16进制表示的字符串
string validationKey = (string)byteArrayToHexString.Invoke(null,
new object[] { validationKeyArray, validationKeyArray.Length });
//将验证密钥字节数组转换为16进制表示的字符串
string DecryptionKey = (string)byteArrayToHexString.Invoke(null,
new object[] { decryptionKeyArray, decryptionKeyArray.Length });
//将加密密钥字节数组转换为16进制表示的字符串
