public static byte[] Decrypt(byte[] inData, string key)
{
// 密钥
byte[] btKey = MyTools.HexStringToBytes(key);
// 初始向量
byte[] btIV = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
DES des = new DESCryptoServiceProvider();
des.Mode = CipherMode.ECB;
des.Padding = PaddingMode.None;
des.BlockSize = 64;
using (MemoryStream ms = new MemoryStream())
{
try
{
using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(btKey, btIV), CryptoStreamMode.Write))
{
cs.Write(inData, 0, inData.Length);
cs.FlushFinalBlock();
cs.Close();
}
return(ms.ToArray());
}
catch (Exception e)
{
MessageBox.Show(e.Message, "消息提示框");
}
}
return(null);
}
// 获取字符串的MD5值，1为UTF-8编码，2位Hex
public static String GetMD5(String strSrc, int index)
{
try
{
if (strSrc == null)
{
MessageBox.Show("输入数据不能为空！", "消息提示框");
}
byte[] byt = null;
if (index == 1)
{
byt = Encoding.UTF8.GetBytes(strSrc);
}
else if (index == 2)
{
byt = MyTools.HexStringToBytes(strSrc);
}
MD5 md5 = new MD5CryptoServiceProvider();
byte[] result = md5.ComputeHash(byt);
return(MyTools.BytesToHexString(result));
}
catch (Exception e)
{
MessageBox.Show(e.Message, "消息提示框");
}
return(null);
}
/** 计算方法 */
private string Hex2ChineseChar_Method(string text)
{
byte[] bs = MyTools.HexStringToBytes(Regex.Replace(text, @"\s", ""));
if (bs == null)
{
return("数据不合法，请参照提示重新输入！");
}
if (this.radioButton01_01.Checked)
{
if (this.radioButton01_03.Checked)
{
return(MyTools.addBlank(Encoding.GetEncoding("GBK").GetString(bs), int.Parse(this.textBox01_01.Text), true));
}
else
{
return(Encoding.GetEncoding("GBK").GetString(bs));
}
}
else
{
if (this.radioButton01_03.Checked)
{
return(MyTools.addBlank(Encoding.GetEncoding("UTF-8").GetString(bs), int.Parse(this.textBox01_01.Text), true));
}
else
{
return(Encoding.GetEncoding("UTF-8").GetString(bs));
}
}
}
public static String Hex2ASCII(string hex, int index)
{
try
{
byte[] bys = MyTools.HexStringToBytes(Regex.Replace(hex, @"\s", ""));
if (bys == null)
{
return(null);
}
StringBuilder stringBuilder = new StringBuilder();
if (index == 0)
{
for (int i = 0; i < bys.Length; i++)
{
stringBuilder.Append(((char)bys[i]).ToString());
}
}
else
{
for (int i = 0; i < bys.Length; i++)
{
stringBuilder.Append(((char)bys[i]).ToString() + " ");
}
}
return(stringBuilder.ToString());
}
catch (Exception e)
{
MessageBox.Show(e.Message, "消息提示框");
}
return(null);
}
// 获取源数据UTF-8编码的byte,Hex编码的密钥,返回16进制字符串
public static String Get3DES(String strSrc, string key)
{
SymmetricAlgorithm tdes = new TripleDESCryptoServiceProvider();
// 密钥
tdes.Key = MyTools.HexStringToBytes(key);
// 初始值
tdes.IV = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
// 指定加密的运算模式
tdes.Mode = System.Security.Cryptography.CipherMode.ECB;
// 获取或设置加密算法的填充模式
tdes.Padding = System.Security.Cryptography.PaddingMode.PKCS7;
// 块大小
tdes.BlockSize = 64;
ICryptoTransform ct;
System.IO.MemoryStream ms;
CryptoStream cs;
try
{
ct = tdes.CreateEncryptor(tdes.Key, tdes.IV); // 创建加密对象
byte[] byt = Encoding.UTF8.GetBytes(strSrc); // 转换为byte数组
int len = byt.Length; // 获取数组长度
int diff = 8 - len % 8; // 距8的整数倍还差多少
byte[] byt1 = new byte[len + diff]; // 定义大于byt的最小8的整数倍个空间
Array.Copy(byt, 0, byt1, 0, byt.Length); // 将与数据拷贝过去
byt1[len] = 0x80; //
for (int j = 0; j < diff - 1; j++)
{
byt1[len + j + 1] = 0x00;
}
ms = new System.IO.MemoryStream();
cs = new CryptoStream(ms, ct, CryptoStreamMode.Write);
cs.Write(byt1, 0, byt1.Length);
cs.FlushFinalBlock();
if (cs != null)
{
cs.Close();
}
byte[] temp = ms.ToArray();
byte[] result = new byte[temp.Length - 8];
Array.Copy(temp, 0, result, 0, temp.Length - 8);
return(MyTools.BytesToHexString(result));
}
catch (Exception e)
{
MessageBox.Show(e.Message, "消息提示框");
}
return(null);
}
public static byte[] Encrypt(byte[] inData, string key)
{
byte[] btKey = MyTools.HexStringToBytes(key);
if (btKey == null)
{
return(null);
}
// 初始向量
byte[] btIV = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
try
{
// DES加密算法对象
DES des = new DESCryptoServiceProvider();
des.Mode = CipherMode.ECB;
des.Padding = PaddingMode.None;
des.BlockSize = 64;
using (MemoryStream ms = new MemoryStream())
{
// 获得报文的长度
int srcLen = inData.Length;
// 获得报文与8的倍数之差
int diff = 8 - srcLen % 8;
// 定义新报文的空间
byte[] bys = new byte[srcLen + diff];
Array.Copy(inData, bys, srcLen);
// 为报文的后面追加0x80、0x00
bys[srcLen] = 0x80;
for (int i = 0; i < diff - 1; i++)
{
bys[srcLen + i + 1] = 0x00;
}
try
{
using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(btKey, btIV), CryptoStreamMode.Write))
{
cs.Write(bys, 0, bys.Length);
cs.FlushFinalBlock();
cs.Close();
}
return(ms.ToArray());
}
catch (Exception e)
{
MessageBox.Show(e.Message, "消息提示框");
}
}
}
catch (Exception e)
{
MessageBox.Show(e.Message, "消息提示框");
}
return(null);
}
/** 发送区1发送 */
private void btnManualSend3_Click(object sender, EventArgs e)
{
if (this.textSendRegionHex03.Checked)
{
this.SendData(MyTools.HexStringToBytes(this.textSendRegion3.Text.Replace(" ", "")));
}
else
{
this.SendData(System.Text.Encoding.Default.GetBytes(this.textSendRegion3.Text));
}
this.sendFrames++;
this.sendBytes += textSendRegion3.Text.Replace(" ", "").Length / 2;
DataCountShow();
// 滚动到控件光标处
RecvRegionShow(textSendRegion3.Text, false);
}
public static String Get3Mac(String srcStr, string key)
{
try
{
// 获取密钥
string lKey = key.Substring(0, 16);
string rKey = key.Substring(16, 16);
// 初始值
byte[] btIV = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
// 获取3DES加密后的结果
// byte[] bys = MyTools.HexStringToBytes(srcStr);
String strTemp = MyEnctypt.Get3DES(srcStr, key); // 该方法获取源数据UTF-8编码的byte,Hex编码的密钥,返回16进制字符串
byte[] md5 = MyTools.HexStringToBytes(MyEnctypt.GetMD5(strTemp, 2)); // 获取字符串的MD5值，1为UTF-8编码，2为Hex
byte[] bysTemp = new byte[8]; // 临时数组
byte[] bysTemp1 = new byte[8]; // 临时数组
Array.Copy(md5, 0, bysTemp, 0, 8); // 将md5的前8个byte拷贝到bysTemp中
byte[] bysTemp2 = DoXOR(bysTemp, btIV); // 将前8个byte和初始值求异或
for (int i = 1; i < md5.Length / 8; i++) // 轮流DES加密、异或
{
Array.Copy(Encrypt(bysTemp2, lKey), 0, bysTemp, 0, 8); // 加密
Array.Copy(md5, i * 8, bysTemp1, 0, 8); // 获取下一组
Array.Copy(DoXOR(bysTemp, bysTemp1), 0, bysTemp2, 0, 8); // 异或
}
byte[] tail = new byte[] { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
Array.Copy(Encrypt(bysTemp2, lKey), 0, bysTemp, 0, 8); // 加密
Array.Copy(DoXOR(bysTemp, tail), 0, bysTemp2, 0, 8); // 异或
Array.Copy(Encrypt(bysTemp2, lKey), 0, bysTemp, 0, 8); // 左8个字节密钥加密
Array.Copy(Decrypt(bysTemp, rKey), 0, bysTemp2, 0, 8); // 右8个字节密钥解密
Array.Copy(Encrypt(bysTemp2, lKey), 0, bysTemp, 0, 8); // 左8个字节密钥加密
return(MyTools.BytesToHexString(bysTemp)); // 返回16进制字符串
}
catch (Exception e)
{
MessageBox.Show(e.Message, "消息提示框");
}
return(null);
}
