.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
2、向窗体中添加两个button与textbox控件，用于操作，如图所示：
3、在准备操作之前，要应用系统的一些方法。代码如下：
public uint DogBytes, 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
}
}
4、双击button1，添加如下代码。
Dog dog = new Dog(100);
dog.DogAddr = 0;
dog.DogBytes = 10;
string str = textBox1.Text;
for (int i = 0; i < str.Length; i++)
{
dog.DogData[i] = (byte)str[i];
}
dog.WriteDog();
MessageBox.Show("密码已成功写入加密狗！", "成功提示！", MessageBoxButtons.OK, MessageBoxIcon.Information);
textBox1.ReadOnly = true;
button1.Enabled = false;
button2.Enabled = true;
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。