.net密码写入与读出加密狗

1、新建一个项目，命名随便，主窗体设置为Dog

3、在准备操作之前，要应用系统的一些方法。代码如下： public uint DogB鲻戟缒男ytes, DogAddr; //设置加密狗字节长度和起始地址 public byte[] DogData; //设置数据的长度 public uint Retcode; [DllImport("Win32dll.dll", CharSet = CharSet.Ansi)] public static unsafe extern uint DogRead(uint idogBytes, uint idogAddr, byte* pdogData); [DllImport("Win32dll.dll", CharSet = CharSet.Ansi)] public static unsafe extern uint DogWrite(uint idogBytes, uint idogAddr, byte* pdogData); public unsafe Dog(ushort num) { DogBytes = num; DogData = new byte[DogBytes]; //设置数据的长度 } public unsafe void ReadDog() { fixed (byte* pDogData = &DogData[0]) { Retcode = DogRead(DogBytes, DogAddr, pDogData);　　//将数据读出加密狗 } } public unsafe void WriteDog() { fixed (byte* pDogData = &DogData[0]) { Retcode = DogWrite(DogBytes, DogAddr, pDogData);　//将数据写入加密狗 } }

5、同样双击button2，添加 Dog dog = new Dog(100); dog.DogAddr = 0; dog.DogBytes = 10; dog.ReadDog(); if (dog.Retcode == 0) //开始读加密狗数据 { char[] chTemp = new char[textBox1.Text.Length]; for (int i = 0; i < textBox1.Text.Length; i++) { chTemp[i] = (char)dog.DogData[i]; } String str = new String(chTemp); textBox2.Text = str; } else { textBox2.Text = "2:" + dog.Retcode; } textBox1.ReadOnly = false; button2.Enabled = false; button1.Enabled = true;

6、记得把第一步骤的方法封装成dog类给予调用。编译通过实现。