受朋友所託,須要給產品加上License驗證功能,進行試用期受權,在試用期事後,產品再也不可用。java
經過研究調查,能夠利用Truelicense開源框架實現,下面分享一下如何利用Truelicense實現受權驗證功能。服務器
在此以前先介紹一下License受權和驗證的原理:app
一、 首先須要生成密鑰對,方法有不少,JDK中提供的KeyTool便可生成。框架
二、 受權者保留私鑰,使用私鑰對包含受權信息(如截止日期,MAC地址等)的license進行數字簽名。工具
三、 公鑰交給使用者(放在驗證的代碼中使用),用於驗證license是否符合使用條件。測試
實現步驟(代碼參考前賢網上案例實現,再也不贅寫):this
1、使用KeyTool生成密鑰對加密
轉到CMD命令行,切換到%JAVA_HOME%\jre\bin\security\ 目錄(KeyTool工具通常在此目錄),執行命令生成的密鑰對:spa
一、首先利用KeyTool工具來生成私匙庫:(-alias別名 –validity 3650表示10年有效).net
keytool -genkey -alias privatekey -keystoreprivateKeys.store -validity 3650
二、而後把私匙庫內的公匙導出到一個文件當中:
keytool -export -alias privatekey -file certfile.cer -keystore privateKeys.store
三、而後再把這個證書文件導入到公匙庫:
keytool -import -alias publiccert -file certfile.cer -keystore publicCerts.store
最後生成文件privateKeys.store、publicCerts.store拷貝出來備用。
2、生成證書(該部分代碼由受權者獨立保管執行)
一、 首先是 LicenseManagerHolder.java 類
package cn.melina.license; import de.schlichtherle.license.LicenseManager; import de.schlichtherle.license.LicenseParam; /** * LicenseManagerHolder * @author melina */ public class LicenseManagerHolder { private static LicenseManager licenseManager; public static synchronized LicenseManager getLicenseManager(LicenseParam licenseParams) { if (licenseManager == null) { licenseManager = new LicenseManager(licenseParams); } return licenseManager; } }
二、 而後是主要生成 license 的代碼 CreateLicense.java
package cn.melina.license; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Properties; import java.util.prefs.Preferences; import javax.security.auth.x500.X500Principal; import de.schlichtherle.license.CipherParam; import de.schlichtherle.license.DefaultCipherParam; import de.schlichtherle.license.DefaultKeyStoreParam; import de.schlichtherle.license.DefaultLicenseParam; import de.schlichtherle.license.KeyStoreParam; import de.schlichtherle.license.LicenseContent; import de.schlichtherle.license.LicenseParam; import de.schlichtherle.license.LicenseManager; /** * CreateLicense * @author melina */ public class CreateLicense { //common param private static String PRIVATEALIAS = ""; private static String KEYPWD = ""; private static String STOREPWD = ""; private static String SUBJECT = ""; private static String licPath = ""; private static String priPath = ""; //license content private static String issuedTime = ""; private static String notBefore = ""; private static String notAfter = ""; private static String consumerType = ""; private static int consumerAmount = 0; private static String info = ""; // 爲了方便直接用的API裏的例子 // X500Princal是一個證書文件的固有格式,詳見API private final static X500Principal DEFAULTHOLDERANDISSUER = new X500Principal( "CN=Duke、OU=JavaSoft、O=Sun Microsystems、C=US"); public void setParam(String propertiesPath) { // 獲取參數 Properties prop = new Properties(); InputStream in = getClass().getResourceAsStream(propertiesPath); try { prop.load(in); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } PRIVATEALIAS = prop.getProperty("PRIVATEALIAS"); KEYPWD = prop.getProperty("KEYPWD"); STOREPWD = prop.getProperty("STOREPWD"); SUBJECT = prop.getProperty("SUBJECT"); KEYPWD = prop.getProperty("KEYPWD"); licPath = prop.getProperty("licPath"); priPath = prop.getProperty("priPath"); //license content issuedTime = prop.getProperty("issuedTime"); notBefore = prop.getProperty("notBefore"); notAfter = prop.getProperty("notAfter"); consumerType = prop.getProperty("consumerType"); consumerAmount = Integer.valueOf(prop.getProperty("consumerAmount")); info = prop.getProperty("info"); } public boolean create() { try { /************** 證書發佈者端執行 ******************/ LicenseManager licenseManager = LicenseManagerHolder .getLicenseManager(initLicenseParams0()); licenseManager.store((createLicenseContent()), new File(licPath)); } catch (Exception e) { e.printStackTrace(); System.out.println("客戶端證書生成失敗!"); return false; } System.out.println("服務器端生成證書成功!"); return true; } // 返回生成證書時須要的參數 private static LicenseParam initLicenseParams0() { Preferences preference = Preferences .userNodeForPackage(CreateLicense.class); // 設置對證書內容加密的對稱密碼 CipherParam cipherParam = new DefaultCipherParam(STOREPWD); // 參數1,2從哪一個Class.getResource()得到密鑰庫;參數3密鑰庫的別名;參數4密鑰庫存儲密碼;參數5密鑰庫密碼 KeyStoreParam privateStoreParam = new DefaultKeyStoreParam( CreateLicense.class, priPath, PRIVATEALIAS, STOREPWD, KEYPWD); LicenseParam licenseParams = new DefaultLicenseParam(SUBJECT, preference, privateStoreParam, cipherParam); return licenseParams; } // 從外部表單拿到證書的內容 public final static LicenseContent createLicenseContent() { DateFormat format = new SimpleDateFormat("yyyy-MM-dd"); LicenseContent content = null; content = new LicenseContent(); content.setSubject(SUBJECT); content.setHolder(DEFAULTHOLDERANDISSUER); content.setIssuer(DEFAULTHOLDERANDISSUER); try { content.setIssued(format.parse(issuedTime)); content.setNotBefore(format.parse(notBefore)); content.setNotAfter(format.parse(notAfter)); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } content.setConsumerType(consumerType); content.setConsumerAmount(consumerAmount); content.setInfo(info); // 擴展 content.setExtra(new Object()); return content; } }
三、 測試程序 licenseCreateTest.java
package cn.melina.license; import cn.melina.license.CreateLicense; public class licenseCreateTest { public static void main(String[] args){ CreateLicense cLicense = new CreateLicense(); //獲取參數 cLicense.setParam("./param.properties"); //生成證書 cLicense.create(); } }
四、 生成時使用到的 param.properties 文件以下
##########common parameters########### #alias PRIVATEALIAS=privatekey #key(該密碼生成密鑰對的密碼,須要妥善保管,不能讓使用者知道) KEYPWD=bigdata123456 #STOREPWD(該密碼是在使用keytool生成密鑰對時設置的密鑰庫的訪問密碼) STOREPWD=abc123456 #SUBJECT SUBJECT=bigdata #licPath licPath=bigdata.lic #priPath priPath=privateKeys.store ##########license content########### #issuedTime issuedTime=2014-04-01 #notBeforeTime notBefore=2014-04-01 #notAfterTime notAfter=2014-05-01 #consumerType consumerType=user #ConsumerAmount consumerAmount=1 #info info=this is a license
根據properties文件能夠看出,這裏只簡單設置了使用時間的限制,固然能夠自定義添加更多限制。該文件中表示受權者擁有私鑰,而且知道生成密鑰對的密碼。而且設置license的內容。
3、驗證證書(使用證書)(該部分代碼結合須要受權的程序一塊兒使用)
一、 首先 LicenseManagerHolder.java 類,同上。
二、 而後是主要驗證 license 的代碼 VerifyLicense.java
package cn.melina.license; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.util.Properties; import java.util.prefs.Preferences; import de.schlichtherle.license.CipherParam; import de.schlichtherle.license.DefaultCipherParam; import de.schlichtherle.license.DefaultKeyStoreParam; import de.schlichtherle.license.DefaultLicenseParam; import de.schlichtherle.license.KeyStoreParam; import de.schlichtherle.license.LicenseParam; import de.schlichtherle.license.LicenseManager; /** * VerifyLicense * @author melina */ public class VerifyLicense { //common param private static String PUBLICALIAS = ""; private static String STOREPWD = ""; private static String SUBJECT = ""; private static String licPath = ""; private static String pubPath = ""; public void setParam(String propertiesPath) { // 獲取參數 Properties prop = new Properties(); InputStream in = getClass().getResourceAsStream(propertiesPath); try { prop.load(in); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } PUBLICALIAS = prop.getProperty("PUBLICALIAS"); STOREPWD = prop.getProperty("STOREPWD"); SUBJECT = prop.getProperty("SUBJECT"); licPath = prop.getProperty("licPath"); pubPath = prop.getProperty("pubPath"); } public boolean verify() { /************** 證書使用者端執行 ******************/ LicenseManager licenseManager = LicenseManagerHolder .getLicenseManager(initLicenseParams()); // 安裝證書 try { licenseManager.install(new File(licPath)); System.out.println("客戶端安裝證書成功!"); } catch (Exception e) { e.printStackTrace(); System.out.println("客戶端證書安裝失敗!"); return false; } // 驗證證書 try { licenseManager.verify(); System.out.println("客戶端驗證證書成功!"); } catch (Exception e) { e.printStackTrace(); System.out.println("客戶端證書驗證失效!"); return false; } return true; } // 返回驗證證書須要的參數 private static LicenseParam initLicenseParams() { Preferences preference = Preferences .userNodeForPackage(VerifyLicense.class); CipherParam cipherParam = new DefaultCipherParam(STOREPWD); KeyStoreParam privateStoreParam = new DefaultKeyStoreParam( VerifyLicense.class, pubPath, PUBLICALIAS, STOREPWD, null); LicenseParam licenseParams = new DefaultLicenseParam(SUBJECT, preference, privateStoreParam, cipherParam); return licenseParams; } }
三、 驗證測試程序 licenseVerifyTest.java
package cn.melina.license; public class licenseVerifyTest { public static void main(String[] args){ VerifyLicense vLicense = new VerifyLicense(); //獲取參數 vLicense.setParam("./param.properties"); //驗證證書 vLicense.verify(); } }
四、 驗證時使用到的Properties文件
##########common parameters########### #alias PUBLICALIAS=publiccert #STOREPWD(該密碼是在使用keytool生成密鑰對時設置的密鑰庫的訪問密碼) STOREPWD=abc123456 #SUBJECT SUBJECT=bigdata #licPath licPath=bigdata.lic #pubPath pubPath=publicCerts.store
根據該驗證的properties能夠看出,使用者只擁有公鑰,沒有私鑰,而且也只知道訪問密鑰庫的密碼,而不能知道生成密鑰對的密碼。
4、參考資料
truelicense官網
https://sourceforge.net/projects/truelicense/
luckymelina專欄
https://blog.csdn.net/luckymelina/article/details/22870665
老張專欄(支持綁定MAC地址)
https://blog.csdn.net/jingshuaizh/article/details/44461289
做者:朝雨憶輕塵
出處:https://www.cnblogs.com/xifengxiaoma/ 版權全部,歡迎轉載,轉載請註明原文做者及出處。