在我們做系統(tǒng)級(jí)框架的時(shí)候，我們要一定程度上考慮系統(tǒng)的使用版權(quán)，不能隨便一個(gè)人拿去在任何環(huán)境都能用，所以我們需要給我們系統(tǒng)做一個(gè)授權(quán)認(rèn)證機(jī)制，只有上傳了我們下發(fā)的lic文件并驗(yàn)證通過(guò)，才能正常使用，下面就開(kāi)始一步一步實(shí)現(xiàn)這個(gè)功能

1.生成機(jī)器碼

我們首先要做的就是對(duì)軟件部署的環(huán)境的唯一性進(jìn)行限制，這里使用的是macadderss，當(dāng)然你也可以換成cpu序列編號(hào)，并無(wú)太大影響，先上代碼

private static String getMac() { try { Enumeration<NetworkInterface> el = NetworkInterface .getNetworkInterfaces(); while (el.hasMoreElements()) {byte[] mac = el.nextElement().getHardwareAddress();if (mac == null) continue;String hexstr = bytesToHexString(mac);return getSplitString(hexstr, '-', 2).toUpperCase(); } } catch (Exception exception) { exception.printStackTrace(); } return null; } public static String getMachineCode() throws Exception{ Set<String> result = new HashSet<>(); String mac = getMac(); result.add(mac); Properties props = System.getProperties(); String javaVersion = props.getProperty('java.version'); result.add(javaVersion); String javaVMVersion = props.getProperty('java.vm.version'); result.add(javaVMVersion); String osVersion = props.getProperty('os.version'); result.add(osVersion); String code = Encrpt.GetMD5Code(result.toString()); return getSplitString(code, '-', 4); }

這里進(jìn)行的操作是取出機(jī)器碼，與java版本，jvm，操作系統(tǒng)參數(shù)進(jìn)行混合，并進(jìn)行MD5操作

2.進(jìn)行l(wèi)ic文件的生成

這是我生成證書(shū)與進(jìn)行授權(quán)證書(shū)的界面，可以看到授權(quán)證書(shū)主要包含三個(gè)要素，機(jī)器碼，是否永久有效標(biāo)識(shí)，證書(shū)時(shí)效，我們會(huì)將這些數(shù)據(jù)寫(xiě)入文本中并進(jìn)行加密處理，看下生成證書(shū)的代碼

public static void getLicense(String isNoTimeLimit, String licenseLimit, String machineCode, String licensePath, String priavateKeyPath) throws Exception{ String[] liccontent = {'LICENSEID=yanpeng19940119@gmail.com','LICENSENAME=YBLOG使用證書(shū)',MessageFormat.format('LICENSETYPE={0}',isNoTimeLimit),MessageFormat.format('EXPIREDAY={0}',licenseLimit), //日期采用yyyy-MM-dd日期格式MessageFormat.format('MACHINECODE={0}',machineCode),'' }; //將lic內(nèi)容進(jìn)行混合簽名并寫(xiě)入內(nèi)容 StringBuilder sign = new StringBuilder(); for(String item:liccontent){ sign.append(item+'yblog'); } liccontent[5] = MessageFormat.format('LICENSESIGN={0}',Encrpt.GetMD5Code(sign.toString())); FileUtil.createFileAndWriteLines(licensePath,liccontent); //將寫(xiě)入的內(nèi)容整體加密替換 String filecontent =FileUtil.readFileToString(licensePath); String encrptfilecontent = Encrpt.EncriptWRSA_Pri(filecontent,priavateKeyPath); File file = new File(licensePath); file.delete(); FileUtil.createFile(licensePath,encrptfilecontent); }

這里我們是將一些信息與特定標(biāo)識(shí)進(jìn)行拼接然后加密，使用的是RSA加密，我們使用私鑰加密公鑰解密，保證驗(yàn)證的開(kāi)放性與生成證書(shū)的私密性，密鑰可以使用java自帶的keytool工具進(jìn)行生成，

教程地址：http://note.youdao.com/noteshare?id=09e2bfc902b21a335a4505f7946a45c9

在lic文件最后我們加上一個(gè)LICENSESIGN參數(shù)，對(duì)其他信息進(jìn)行一次加密，防止信息被篡改，生成文件后再對(duì)文本進(jìn)行整體加密

這里生成密鑰的長(zhǎng)度為2048而非1024，所以解密塊長(zhǎng)度為256，這里需要注意下，公鑰加密方法為，為了方便大家，這里提供下具體加密代碼

private static final int MAX_ENCRYPT_BLOCK = 117;private static final int MAX_DECRYPT_BLOCK=256; public static String EncriptWRSA_Pri(String data,String path) throws Exception{ String encryptData =''; FileInputStream in = new FileInputStream(path); KeyStore ks = KeyStore.getInstance('JKS');// JKS: Java KeyStoreJKS，可以有多種類型 ks.load(in, '123'.toCharArray()); in.close(); String alias = 'yblogkey'; // 記錄的別名 String pswd = '123'; // 記錄的訪問(wèn)密碼 java.security.cert.Certificate cert = ks.getCertificate(alias); //獲取私鑰 PrivateKey privateKey = (PrivateKey) ks.getKey(alias, pswd.toCharArray()); //私鑰加密 Cipher cipher = Cipher.getInstance('rsa'); SecureRandom random = new SecureRandom(); cipher.init(Cipher.ENCRYPT_MODE, privateKey, random); try { // Cipher cipher = Cipher.getInstance('RSA'); // cipher.init(Cipher.ENCRYPT_MODE, publicKey); int length = data.getBytes().length; int offset = 0; byte[] cache; ByteArrayOutputStream outStream = new ByteArrayOutputStream(); int i = 0; while(length - offset > 0){if(length - offset > MAX_ENCRYPT_BLOCK){ cache = cipher.doFinal(data.getBytes(), offset, MAX_ENCRYPT_BLOCK);}else{ cache = cipher.doFinal(data.getBytes(), offset, length - offset);}outStream.write(cache, 0, cache.length);i++;offset = i * MAX_ENCRYPT_BLOCK; } return encode.encode(outStream.toByteArray()); } catch (IllegalBlockSizeException e) { e.printStackTrace(); } catch (BadPaddingException e) { e.printStackTrace(); } return encryptData; } public static String DecriptWithRSA_Pub(String data,String path) throws Exception{ X509Certificate x509Certificate = (X509Certificate) getCertificate(path); // 獲得公鑰 PublicKey publicKey = x509Certificate.getPublicKey(); Cipher cipher = Cipher.getInstance('rsa'); SecureRandom random = new SecureRandom(); byte[] bEncrypt = decoder.decodeBuffer(data); //公鑰解密 cipher.init(Cipher.DECRYPT_MODE, publicKey, random); String decryptData = ''; // byte[] plainData = cipher.doFinal(bEncrypt); // System.out.println('11111:'+new String(plainData)); int inputLen = bEncrypt.length; ByteArrayOutputStream out = new ByteArrayOutputStream(); int offSet = 0; byte[] cache; int i = 0; // 對(duì)數(shù)據(jù)分段解密 while (inputLen - offSet > 0) { if (inputLen - offSet > MAX_DECRYPT_BLOCK) {cache = cipher.doFinal(bEncrypt, offSet, MAX_DECRYPT_BLOCK); } else {cache = cipher.doFinal(bEncrypt, offSet, inputLen - offSet); } out.write(cache, 0, cache.length); i++; offSet = i * MAX_DECRYPT_BLOCK; } byte[] decryptedData = out.toByteArray(); out.close(); return new String(decryptedData); }

3.驗(yàn)證lic

我們會(huì)在系統(tǒng)中注冊(cè)一個(gè)攔截器，未通過(guò)系統(tǒng)授權(quán)認(rèn)證會(huì)自動(dòng)跳轉(zhuǎn)到lic文件上傳界面，springboot接收文件與常規(guī)java有一些不同，使用的MultipartFile對(duì)象，會(huì)獲取到上傳文件的數(shù)組，進(jìn)行操作，看下保存上傳lic文件代碼

@RequestMapping(value='/login/licenseauth',method= RequestMethod.POST) @ResponseBody public Map<Object,Object> licenseauth(MultipartHttpServletRequest multiReq){ Map<Object,Object> map = new HashMap<Object,Object>(); try { String savePath = ResourceUtils.getURL('src/main/resources/static/lic').getPath(); MultipartFile file = multiReq.getFile('file'); String filename = file.getOriginalFilename(); File uploadfile = new File(savePath + '' + filename); if (!uploadfile.exists()){//獲取item中的上傳文件的輸入流InputStream in = file.getInputStream();//創(chuàng)建一個(gè)文件輸出流FileOutputStream out = new FileOutputStream(savePath + '' + filename);//創(chuàng)建一個(gè)緩沖區(qū)byte buffer[] = new byte[1024];//判斷輸入流中的數(shù)據(jù)是否已經(jīng)讀完的標(biāo)識(shí)int len = 0;//循環(huán)將輸入流讀入到緩沖區(qū)當(dāng)中，(len=in.read(buffer))>0就表示in里面還有數(shù)據(jù)while((len=in.read(buffer))>0){ //使用FileOutputStream輸出流將緩沖區(qū)的數(shù)據(jù)寫(xiě)入到指定的目錄(savePath + '' + filename)當(dāng)中 out.write(buffer, 0, len);}//關(guān)閉輸入流in.close();//關(guān)閉輸出流out.close(); } map.put('executestatus','1'); }catch (Exception e){ e.printStackTrace(); map.put('executestatus','0'); } return map; }

有了上傳文件，我們就可以通過(guò)系統(tǒng)內(nèi)置的公鑰對(duì)lic文件的機(jī)器碼，授權(quán)時(shí)間進(jìn)行驗(yàn)證，確定是否能正常訪問(wèn)系統(tǒng)

public static boolean authLicense() throws Exception{ boolean isauth = false; String pubkpath = ResourceUtils.getURL('src/main/resources/static/lic/').getPath()+'yblog.crt'; String licpath = ResourceUtils.getURL('src/main/resources/static/lic/').getPath(); File lic = new File(licpath); String[] filelist = lic.list(); if (filelist.length>0){ for (int i = 0; i < filelist.length; i++) {if (filelist[i].contains('.lic')){ File readfile = new File(licpath + filelist[i]); if (readfile.isFile()) { String liccontent = FileUtil.readFileToString(readfile); String decriptliccontent = Encrpt.DecriptWithRSA_Pub(liccontent,pubkpath); HashMap<String, String> props = genDataFromArrayByte(decriptliccontent.getBytes()); String licenseid = props.get('LICENSEID'); String licensename= props.get('LICENSENAME'); String licensetype = props.get('LICENSETYPE'); String liclimit = props.get('EXPIREDAY'); String machinecode = props.get('MACHINECODE'); String lincensesign = props.get('LICENSESIGN'); //驗(yàn)證簽名 String allinfogroup = 'LICENSEID='+licenseid+'yblog'+'LICENSENAME='+licensename+'yblog'+'LICENSETYPE='+licensetype+'yblog'+'EXPIREDAY='+liclimit+'yblog'+'MACHINECODE='+machinecode+'yblogyblog'; if (lincensesign.equals(Encrpt.GetMD5Code(allinfogroup))){ //驗(yàn)證機(jī)器碼 if (getMachineCode().equals(machinecode)){SimpleDateFormat sdf=new SimpleDateFormat('yyyy-MM-dd');Date bt=new Date();Date et=sdf.parse(liclimit);//驗(yàn)證時(shí)間if(bt.compareTo(et)<=0){ isauth = true; System.out.println('注冊(cè)文件:'+filelist[i]+',已通過(guò)驗(yàn)證'); break;}else{ System.out.println('證書(shū)過(guò)期');} }else{System.out.println('機(jī)器碼不一致'); } }else{ System.out.println('簽名不一致'); } }} } }else{ System.out.println('未上傳證書(shū)'); } return isauth; }

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持好吧啦網(wǎng)。