unity3d：激活码系统（根据PC机器码，给对应激活码完成软件注册）

亦凉 2022-02-20 06:38 610阅读 0赞

1.机器码为明文，采用DES加密  
2.判断输入激活码与机器码的密文一致，激活成功

using UnityEngine;
    using UnityEngine.UI;
    
    using UnityEngine.SceneManagement;
    using System.IO;
    
    namespace KeyScene
    { 
        public class KeyMgr : MonoBehaviour
        { 
            public string m_titleName;
            public string m_projectName;
            string m_sMachineCode;
            public string m_nextScene;
            public Text m_machineCode;
            public InputField m_inputActice;
            public Text m_title;
            public UnityEngine.UI.Button m_btnCopy;
            public UnityEngine.UI.Button m_btnActive;
    
            public Text m_hint;
    
            string m_miMa;
            string m_path;
            string m_fileName = "mi.json";
            string m_allPath;
    
            public GameObject m_panel;
            // Use this for initialization
            void Start()
            { 
                m_miMa = DesTool.EncryptString(m_sMachineCode, "subor123");
                Debug.Log(m_miMa);
                m_path = UnityEngine.Application.streamingAssetsPath;
                m_allPath = m_path + "/" + m_fileName;
                if (File.Exists(m_allPath) == true)
                { 
                    string sContent = GetJsonString(m_allPath);
                    if (sContent == m_miMa)
                    { 
                        SceneManager.LoadScene(m_nextScene);
                    }
                    else { 
                        m_panel.SetActive(true);
                    }
                }
                else { 
                    m_panel.SetActive(true);
                }
                
    
                
                m_machineCode.text = m_sMachineCode;
                m_title.text = m_titleName;
    
                m_btnActive.onClick.AddListener(OnBtnActive);
                m_btnCopy.onClick.AddListener(OnBtnCopy);
    
                
                
            }
    
    
            void OnBtnActive()
            { 
                string active = m_inputActice.text;
                if (active == m_miMa)
                { 
                    
                    m_hint.text = "激活成功";
                    m_hint.color = Color.green;
                    m_hint.gameObject.SetActive(true);
                    m_panel.SetActive(false);
                    //保存文本
                    SaveJsonString(active, m_allPath);
                    SceneManager.LoadScene(m_nextScene);
                }
                else { 
                    m_hint.text = "激活失败";
                    m_hint.color = Color.red;
                    m_hint.gameObject.SetActive(true);
                }
            }
    
            void OnBtnCopy()
            { 
                System.Windows.Forms.Clipboard.SetDataObject(m_sMachineCode);
            
            }
    
    
    
            static public void SaveJsonString(string JsonString, string path)    //保存Json格式字符串
            { 
                //写入Json数据
                if (File.Exists(path) == true)
                { 
                    File.Delete(path);
                }
    
                string onlyPath = GetOnlyPath(path);
                if (!Directory.Exists(onlyPath))
                { 
                    Directory.CreateDirectory(onlyPath);
                }
    
                FileInfo file = new FileInfo(path);
                StreamWriter writer = file.CreateText();
                writer.Write(JsonString);
                writer.Close();
                writer.Dispose();
            }
    
            static public string GetJsonString(string path)     //从文件里面读取json数据
            { //读取Json数据
                StreamReader reader = new StreamReader(path);
                string jsonData = reader.ReadToEnd();
                reader.Close();
                reader.Dispose();
                return jsonData;
            }
    
            public static string GetOnlyPath(string path)
            { 
                string[] bufPath = path.Split('/');
                string name = bufPath[bufPath.Length - 1];
                string onlyPath = path.Replace(name, "");
                //string abPath = info.m_prefabName.Replace("/" + abName, "");
                //string[] bufAbName = abName.Split('.');
                return onlyPath;
            }
        }
    }

des加密

using System.IO;
    using System.Text;
    using System.Security.Cryptography;
    using System;
    
    public class DesTool  { 
    
        #region 密钥
    
        //private static string key = "abcd1234"; //密钥(长度必须8位以上) 
    
        #endregion
    
    
    
        #region DES加密
    
        public static string EncryptString(string pToEncrypt,string key)
        { 
    
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
    
            byte[] inputByteArray = Encoding.UTF8.GetBytes(pToEncrypt);
    
    
    
    
    
            des.Key = UTF8Encoding.UTF8.GetBytes(key);
    
            des.IV = UTF8Encoding.UTF8.GetBytes(key);
    
            MemoryStream ms = new MemoryStream();
    
            CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
    
    
    
            cs.Write(inputByteArray, 0, inputByteArray.Length);
    
            cs.FlushFinalBlock();
    
    
    
            StringBuilder ret = new StringBuilder();
    
            foreach (byte b in ms.ToArray())
            { 
    
                ret.AppendFormat("{0:X2}", b);
    
            }
    
            ret.ToString();
    
            return ret.ToString();
    
        }
    
        #endregion
    
    }

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