C#与大华视频OCR分析设备DH-IVD501-V2通讯设置步骤
使用大华公司的视频分析设备 小神算系列产品（型号DH-IVD501-V2）做相机的OCR识别通讯。 硬件连接 硬盘 需打开外壳，安装硬盘。如不安装硬盘，进入系统后蜂鸣器会鸣响报错。 网络 IVD501有两个网口，网口1默认IP地址192.168.1.108...
标签： C#
FreeSCADA 2：基于.NET的开源 SCADA 系统
FreeSCADA 2 是一款开源 SCADA 系统，基于微软技术栈构建，采用 .NET/C#/WPF/XAML 技术。它支持纯 XAML 语法定义矢量图形，并可将 XAML 属性直接绑定到标签值，实现动态数据可视化展示，内置 OPC、ModBus 和 SNMP 等多种通信协议驱动程序，在工业自动化领域具有广泛应用潜力。系统架构主要由 Designer 和 Run Time 两个核心模块以及其他辅助模块和插件组成。Designer 是用于创建和配置项目的开发工具，提供可视化界面，允许用户定义与数据源的链接、设置归档规则等；Run Time 负责项目的实际运行和监控，实现数据的实时采集、处理、存储、归档等功能。
可通用的VB.NET、C#与Java的Des加解密代码
1、Java版
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import java.io.UnsupportedEncodingException; import java.security.SecureRandom; import javax.crypto.spec.DESKeySpec; import javax.crypto.spec.IvParameterSpec; import Decoder.BASE64Decoder; import Decoder.BASE64Encoder; import javax.crypto.SecretKeyFactory; import javax.crypto.SecretKey; import javax.crypto.Cipher; public class MyDesc { public MyDesc() {} //测试 public static void main(String args[]) throws UnsupportedEncodingException { //待加密内容 String str = "{\"pid\":\"511025198710264794\",\"pname\":false}"; //密码，长度要是8的倍数 String password = "2018052400018841"; String result = MyDesc.encrypt(str.getBytes("UTF-8"),password); System.out.println("加密后："+result); //uMI2SuMFepPhQxytg/ONQPwfCnlLZHYOQiuIY6u176gbgHCw8nD7u3fMV7IgSr5o //直接将如上内容解密 try { String decryResult = MyDesc.decrypt(result, password); System.out.println("解密后："+decryResult); //{"pid":"511025198710264794","pname":false} } catch (Exception e1) { e1.printStackTrace(); } } /** * 加密 * @param datasource * @param password * @return */ public static String encrypt(byte[] datasource, String password) { String strIv = "12345678"; try{ SecureRandom random = new SecureRandom(); DESKeySpec desKey = new DESKeySpec(password.getBytes("UTF-8")); //创建一个密匙工厂，然后用它把DESKeySpec转换成 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey securekey = keyFactory.generateSecret(desKey); //Cipher对象实际完成加密操作 Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); //用密匙初始化Cipher对象 IvParameterSpec param = new IvParameterSpec(strIv.getBytes()); cipher.init(Cipher.ENCRYPT_MODE, securekey, param); //现在，获取数据并加密 //正式执行加密操作 byte[] buf = cipher.doFinal(datasource); String utf8 = new BASE64Encoder().encodeBuffer(buf); return utf8; }catch(Throwable e){ e.printStackTrace(); } return null; } /** * 解密 * @param src * @param password * @return * @throws Exception */ public static String decrypt(String src, String password) throws Exception { String strIv = "12345678"; // DES算法要求有一个可信任的随机数源 SecureRandom random = new SecureRandom(); // 创建一个DESKeySpec对象 DESKeySpec desKey = new DESKeySpec(password.getBytes()); // 创建一个密匙工厂 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); // 将DESKeySpec对象转换成SecretKey对象 SecretKey securekey = keyFactory.generateSecret(desKey); // Cipher对象实际完成解密操作 Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); // 用密匙初始化Cipher对象 IvParameterSpec param = new IvParameterSpec(strIv.getBytes()); cipher.init(Cipher.DECRYPT_MODE, securekey, param); // 真正开始解密操作 byte[] dec = new BASE64Decoder().decodeBuffer(src); byte[] utf8 = cipher.doFinal(dec); String decryptedStr = new String(utf8, "UTF-8"); return decryptedStr; } } |
2、C#版
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using System; using System.Collections.Generic; using System.Linq; using System; using System.Linq; using System.Web.Script.Serialization; using System.Runtime.Serialization; using System.Dynamic; using System.Net; using System.IO; using System.Collections.Specialized; using System.Web; using System.Security.Cryptography; using System.Text; namespace testDESC { static class Test { /// <summary> /// 解密 /// </summary> /// <param name="encryptedString"></param> /// <param name="keyString"></param> /// <returns></returns> public static string Decrypt(string encryptedString, string keyString) { keyString = keyString.Substring(0, 8); byte[] btKey = Encoding.UTF8.GetBytes(keyString); byte[] btIv = Encoding.UTF8.GetBytes("12345678"); var des = new DESCryptoServiceProvider(); des.Mode = CipherMode.CBC;//这里指定加密模式为CBC des.Padding = PaddingMode.PKCS7; des.Key = btKey; des.IV = btIv; using (var ms = new MemoryStream()) { try { byte[] inData = Convert.FromBase64String(encryptedString); using (var cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write)) { cs.Write(inData, 0, inData.Length); cs.FlushFinalBlock(); } return Encoding.UTF8.GetString(ms.ToArray()); } catch (Exception ex) { return "-1"; // throw ex; } } } /// <summary> /// 加密 /// </summary> /// <param name="sourceString"></param> /// <param name="keyString"></param> /// <returns></returns> public static string Encrypt(string sourceString, string keyString) { keyString = keyString.Substring(0, 8); byte[] btIv = Encoding.UTF8.GetBytes("12345678"); byte[] btKey = Encoding.UTF8.GetBytes(keyString); try { DESCryptoServiceProvider des = new DESCryptoServiceProvider(); using (MemoryStream ms = new MemoryStream()) { byte[] inData = Encoding.UTF8.GetBytes(sourceString); using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(btKey, btIv), CryptoStreamMode.Write)) { cs.Write(inData, 0, inData.Length); cs.FlushFinalBlock(); } return Convert.ToBase64String(ms.ToArray()); } } catch { return "-1"; } } static void Main(string[] args) { string str = "{\"pid\":\"511025198710264794\",\"pname\":false}"; string re = Encrypt(str, "2018052400018841"); Console.WriteLine("加密：" + re); //uMI2SuMFepPhQxytg/ONQPwfCnlLZHYOQiuIY6u176gbgHCw8nD7u3fMV7IgSr5o string re1 = Decrypt(re, "2018052400018841"); Console.WriteLine("解密：" + re1); //{"pid":"511025198710264794","pname":false} } } } |
3、VB.NET版
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Imports System.IO Imports System.Security.Cryptography Imports System.Text ''' <summary> ''' DES加密 ''' </summary> Public Class DES ''' <summary> ''' 进行DES加密 ''' </summary> ''' <param name="pToEncrypt">需要加密的字符串</param> ''' <param name="sKey">密钥</param> ''' <returns></returns> Public Function Encrypt(ByVal pToEncrypt As String, ByVal sKey As String) As String Using des As DESCryptoServiceProvider = New DESCryptoServiceProvider() Dim inputByteArray As Byte() = Encoding.UTF8.GetBytes(pToEncrypt) des.Key = Encoding.UTF8.GetBytes(sKey) des.IV = Encoding.UTF8.GetBytes("12345678") des.Padding = PaddingMode.PKCS7 des.Mode = CipherMode.ECB Dim ms As MemoryStream = New MemoryStream() Try Using cs As CryptoStream = New CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write) cs.Write(inputByteArray, 0, inputByteArray.Length) cs.FlushFinalBlock() cs.Close() End Using Dim base64 As String = Convert.ToBase64String(ms.ToArray()) Return base64 Catch ex As Exception Return "-1" Finally ms.Close() End Try End Using End Function ''' <summary> ''' 进行DES解密 ''' </summary> ''' <param name="pToDecrypt">需要解密的字符串</param> ''' <param name="sKey">密钥</param> ''' <returns></returns> Public Function Decrypt(ByVal pToDecrypt As String, ByVal sKey As String) As String Dim inputByteArray As Byte() = Convert.FromBase64String(pToDecrypt) Using des As DESCryptoServiceProvider = New DESCryptoServiceProvider() des.Key = Encoding.UTF8.GetBytes(sKey) des.IV = Encoding.UTF8.GetBytes("12345678") des.Padding = PaddingMode.PKCS7 des.Mode = CipherMode.ECB Dim ms As MemoryStream = New MemoryStream() Try Using cs As CryptoStream = New CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write) cs.Write(inputByteArray, 0, inputByteArray.Length) cs.FlushFinalBlock() cs.Close() End Using Dim str As String = Encoding.UTF8.GetString(ms.ToArray()) Return str Catch ex As Exception Return "-1" Finally ms.Close() End Try End Using End Function End Class Public Class Form1 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Dim myDES As New DES Debug.Print(myDES.Decrypt("vqzlic2Xtm1pWb4GwaH0Mdh4SETUnomlkKfyxfxF2RUI4J1O4SIWcw==", "ZMCCXZQA")) End Sub Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click Dim myDES As New DES Debug.Print(myDES.Encrypt("{""username"":""张三"",""sex"":""男""}", "ZMCCXZQA")) End Sub End Class |
可通用的C...
[转]FreeSCADA的数据库存储方式(Archiver)探究[MySQL为例]
原文链接 https://www.cnblogs.com/jayhust/p/5812747.html 1.我们先新建一个FreeSCADA的工程实例，看下实际的存储效果： a) 建立几个数据通道作为数据源(Communication菜单编辑，Channe...