springboot實現Web系統License授權認證


在我們做系統級框架的時候,我們要一定程度上考慮系統的使用版權,不能隨便一個人拿去在任何環境都能用,所以我們需要給我們系統做一個授權認證機制,只有上傳了我們下發的lic文件並驗證通過,才能正常使用,下面就開始一步一步實現這個功能

1.生成機器碼

我們首先要做的就是對軟件部署的環境的唯一性進行限制,這里使用的是macadderss,當然你也可以換成cpu序列編號,並無太大影響,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);

}

  


這里進行的操作是取出機器碼,與java版本,jvm,操作系統參數進行混合,並進行MD5操作

2.進行lic文件的生成

 

 

這是我生成證書與進行授權證書的界面,可以看到授權證書主要包含三個要素,機器碼,是否永久有效標識,證書時效,我們會將這些數據寫入文本中並進行加密處理,看下生成證書的代碼

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",
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內容進行混合簽名並寫入內容
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);
//將寫入的內容整體加密替換
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識進行拼接然后加密,使用的是RSA加密,我們使用私鑰加密公鑰解密,保證驗證的開放性與生成證書的私密性,密鑰可以使用java自帶的keytool工具進行生成,教程地址:http://note.youdao.com/noteshare?id=09e2bfc902b21a335a4505f7946a45c9,在lic文件最后我們加上一個LICENSESIGN參數,對其他信息進行一次加密,防止信息被篡改,生成文件后再對文本進行整體加密

這里生成密鑰的長度為2048而非1024,所以解密塊長度為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;
// 對數據分段解密
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.驗證lic

我們會在系統中注冊一個攔截器,未通過系統授權認證會自動跳轉到lic文件上傳界面,springboot接收文件與常規java有一些不同,使用的MultipartFile對象,會獲取到上傳文件的數組,進行操作,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();
//創建一個文件輸出流
FileOutputStream out = new FileOutputStream(savePath + "\\" + filename);
//創建一個緩沖區
byte buffer[] = new byte[1024];
//判斷輸入流中的數據是否已經讀完的標識
int len = 0;
//循環將輸入流讀入到緩沖區當中,(len=in.read(buffer))>0就表示in里面還有數據
while((len=in.read(buffer))>0){
//使用FileOutputStream輸出流將緩沖區的數據寫入到指定的目錄(savePath + "\\" + filename)當中
out.write(buffer, 0, len);
}
//關閉輸入流
in.close();
//關閉輸出流
out.close();
}
map.put("executestatus","1");

}catch (Exception e){
e.printStackTrace();
map.put("executestatus","0");
}

return map;
}

  


有了上傳文件,我們就可以通過系統內置的公鑰對lic文件的機器碼,授權時間進行驗證,確定是否能正常訪問系統

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))){
//驗證機器碼
if (getMachineCode().equals(machinecode)){
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
Date bt=new Date();
Date et=sdf.parse(liclimit);
//驗證時間
if(bt.compareTo(et)<=0){
isauth = true;
System.out.println("注冊文件:"+filelist[i]+",已通過驗證");
break;
}else{
System.out.println("證書過期");
}
}else{
System.out.println("機器碼不一致");
}
}else{
System.out.println("簽名不一致");
}
}
}
}
}else{
System.out.println("未上傳證書");
}
return isauth;
}

  


 
————————————————
版權聲明:本文為CSDN博主「code2roc」的原創文章,遵循CC 4.0 BY-SA版權協議,轉載請附上原文出處鏈接及本聲明。
原文鏈接:https://blog.csdn.net/u013407099/java/article/details/81271701


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