使用方式
string Value = "我们都是一起的一起的 一起的";
string _Des = Zgke.Test.DES.DESEncoder(Value, Encoding.Default, null, null);
string _AAA = Zgke.Test.DES.DESDecoder(_Des, Encoding.Default, null, null);
MessageBox.Show(_Des, _AAA);
下面是全部的类
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using System;
using System.Text;
using System.Security.Cryptography;
namespace Zgke.Test
{
/// <summary>
/// DES加密 解密
/// zgke@sina.com
/// qq:116149
/// </summary>
public class DES
{
/// <summary>
/// 对字节进行DES加密
/// </summary>
/// <param name="p_Value">字节数组</param>
/// <param name="p_Key">钥匙 可以使用 System.Text.Encoding.AscII.GetBytes("ABVD") 注意必须是8位 </param>
/// <param name="p_IV">向量 如果为NULL 向量和钥匙是一个</param>
/// <returns>加密后的BYTE</returns>
public static byte[] DESEncoder(byte[] p_Value, byte[] p_Key, byte[] p_IV)
{
byte[] _RgbKey = p_Key;
byte[] _RgbIV = p_IV;
if (_RgbKey == null || _RgbKey.Length!= 8) _RgbKey = new byte[] { 0x7A, 0x67, 0x6B, 0x65, 0x40, 0x73, 0x69, 0x6E };
if (_RgbIV == null) _RgbIV = _RgbKey;
DESCryptoServiceProvider _Desc = new DESCryptoServiceProvider();
ICryptoTransform _ICrypto = _Desc.CreateEncryptor(_RgbKey, _RgbIV);
return _ICrypto.TransformFinalBlock(p_Value, 0, p_Value.Length);
}
/// <summary>
/// 对字节进行DES解密
/// </summary>
/// <param name="p_Value">字节数组</param>
/// <param name="p_Key">钥匙 可以使用 System.Text.Encoding.AscII.GetBytes("ABVD") 注意必须是8位 </param>
/// <param name="p_IV">向量 如果为NULL 向量和钥匙是一个</param>
/// <returns>解密后的BYTE</returns>
public static byte[] DESDecoder(byte[] p_Value, byte[] p_Key, byte[] p_IV)
{
byte[] _RgbKey = p_Key;
byte[] _RgbIV = p_IV;
if (_RgbKey == null || _RgbKey.Length != 8) _RgbKey = new byte[] { 0x7A, 0x67, 0x6B, 0x65, 0x40, 0x73, 0x69, 0x6E };
if (_RgbIV == null) _RgbIV = _RgbKey;
DESCryptoServiceProvider _Desc = new DESCryptoServiceProvider();
ICryptoTransform _ICrypto = _Desc.CreateDecryptor(_RgbKey, _RgbIV);
return _ICrypto.TransformFinalBlock(p_Value, 0, p_Value.Length);
}
/// <summary>
/// DES加密
/// </summary>
/// <param name="enStr">原始数据</param>
/// <param name="p_TextEncoding">数据编码</param>
/// <param name="p_Key">钥匙 可以使用 System.Text.Encoding.AscII.GetBytes("ABVD") 注意必须是8位 </param>
/// <param name="p_IV">向量 如果为NULL 向量和钥匙是一个</param>
/// <returns>加密后的字符穿 00-00-00</returns>
public static string DESEncoder(string p_TextValue, System.Text.Encoding p_TextEncoding,byte[] p_Key,byte[] p_IV)
{
byte[] _DataByte = p_TextEncoding.GetBytes(p_TextValue);
return BitConverter.ToString(DESEncoder(_DataByte,p_Key,p_IV));
}
/// <summary>
/// DES解密
/// </summary>
/// <param name="p_TextValue">经过加密数据</param>
/// <param name="p_TextEncoding">数据编码</param>
/// <param name="p_Key">钥匙 可以使用 System.Text.Encoding.AscII.GetBytes("ABVD") 注意必须是8位 </param>
/// <param name="p_IV">向量 如果为NULL 向量和钥匙是一个</param>
/// <returns>解密后的字符穿</returns>
public static string DESDecoder(string p_TextValue, System.Text.Encoding p_TextEncoding,byte[] p_Key,byte[] p_IV)
{
string[] _ByteText = p_TextValue.Split('-');
byte[] _DataByte =new byte[_ByteText.Length];
for (int i = 0; i != _ByteText.Length; i++)
{
_DataByte[i] = Convert.ToByte(_ByteText[i], 16);
}
return p_TextEncoding.GetString(DESDecoder(_DataByte,p_Key,p_IV));
}
}
}
这样不好，只是90度的呀。
C# code
//测试用
private void button1_Click(object sender, EventArgs e)
{
Bitmap a = new Bitmap(pictureBox1.Image);//得到图片框中的图片
pictureBox1 .Image = Rotate(a, 30);//这里的30为度数，
pictureBox1.Refresh();//最后刷新图片框
}
#region 图片旋转函数
/// <summary>
/// 以逆时针为方向对图像进行旋转
/// </summary>
/// <param name="b">位图流</param>
/// <param name="angle">旋转角度[0,360](前台给的)</param>
/// <returns></returns>
public Bitmap Rotate(Bitmap b, int angle)
{
angle = angle % 360;
//弧度转换
double radian = angle * Math.PI / 180.0;
double cos = Math.Cos(radian);
double sin = Math.Sin(radian);
//原图的宽和高
int w = b.Width;
int h = b.Height;
int W = (int)(Math.Max(Math.Abs(w * cos - h * sin), Math.Abs(w * cos + h * sin)));
int H = (int)(Math.Max(Math.Abs(w * sin - h * cos), Math.Abs(w * sin + h * cos)));
//目标位图
Bitmap dsImage = new Bitmap(W, H);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(dsImage);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Bilinear;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//计算偏移量
Point Offset = new Point((W - w) / 2, (H - h) / 2);
//构造图像显示区域：让图像的中心与窗口的中心点一致
Rectangle rect = new Rectangle(Offset.X, Offset.Y, w, h);
Point center = new Point(rect.X + rect.Width / 2, rect.Y + rect.Height / 2);
g.TranslateTransform(center.X, center.Y);
g.RotateTransform(360 - angle);
//恢复图像在水平和垂直方向的平移
g.TranslateTransform(-center.X, -center.Y);
g.DrawImage(b, rect);
//重至绘图的所有变换
g.ResetTransform();
g.Save();
g.Dispose();
//dsImage.Save("yuancd.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
return dsImage;
}
#endregion 图片旋转函数
