JSD-7747 开源任务材料
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

262 lines
7.7 KiB

package com.fr.plugin.loginAuth.utils;
import com.fr.log.FineLoggerFactory;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.SecretKeySpec;
import java.io.IOException;
import java.security.Key;
import java.security.MessageDigest;
import java.security.SecureRandom;
/**
* 加解密工具类
*/
public class CipherUtils {
/**
* 加密
*
* @param datasource
* byte[]
* @param password
* String
* @return byte[]
*/
public static byte[] desEncrypt(byte[] datasource, String password) {
try {
SecureRandom random = new SecureRandom();
DESKeySpec desKey = new DESKeySpec(password.getBytes());
// 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");
// 用密匙初始化Cipher对象
cipher.init(Cipher.ENCRYPT_MODE, securekey, random);
// 现在,获取数据并加密
// 正式执行加密操作
return cipher.doFinal(datasource);
} catch (Throwable e) {
e.printStackTrace();
}
return null;
}
/**
* 解密
*
* @param src
* byte[]
* @param password
* String
* @return byte[]
* @throws Exception
*/
public static byte[] desDecrypt(byte[] src, String password) throws Exception {
// 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("UTF-8"));
// 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");
// 用密匙初始化Cipher对象
cipher.init(Cipher.DECRYPT_MODE, securekey, random);
// 真正开始解密操作
return cipher.doFinal(src);
}
/**
* 自定义一个key
**/
public static byte[] getKey(String keyRule) {
Key key = null;
byte[] keyByte = keyRule.getBytes();
// 创建一个空的八位数组,默认情况下为0
byte[] byteTemp = new byte[8];
// 将用户指定的规则转换成八位数组
for (int i = 0; i < byteTemp.length && i < keyByte.length; i++) {
byteTemp[i] = keyByte[i];
}
key = new SecretKeySpec(byteTemp, "DES");
return key.getEncoded();
}
/**
* 将16进制转换为二进制
*
* @param hexStr
* @return
*/
public static byte[] parseHexStr2Byte(String hexStr) {
if (hexStr.length() < 1) return null;
byte[] result = new byte[hexStr.length() / 2];
for (int i = 0; i < hexStr.length() / 2; i++) {
int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1), 16);
int low = Integer.parseInt(hexStr.substring(i * 2 + 1, i * 2 + 2), 16);
result[i] = (byte) (high * 16 + low);
}
return result;
}
/***
* 解密数据
* @param decryptString
* @param decryptKey
* @return
* @throws Exception
*/
public static String decryptDES(String decryptString, String decryptKey) throws Exception {
SecretKeySpec key = new SecretKeySpec(getKey(decryptKey), "DES");
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, key);
byte decryptedData[] = cipher.doFinal(parseHexStr2Byte(decryptString));
return new String(decryptedData,"utf-8");
}
/**
* jdksha256加密
* @param str
* @return
*/
public static String jdksha256(String str)
{
String sha256Str = "";
try {
MessageDigest sha256Deget = MessageDigest.getInstance("SHA-256");
byte[] sha256Encode = sha256Deget.digest(str.getBytes());
sha256Str = ByteToHexStr(sha256Encode);
}catch (Exception e){
FineLoggerFactory.getLogger().info("FRLOG:SHA256加密异常:"+e.getMessage());
}
return sha256Str;
}
/**
* byte数组转16进制字符串
* @param bytes
* @return
*/
private static String ByteToHexStr(byte[] bytes)
{
String hexStr = "";
for(int i =0;i<bytes.length;i++)
{
int temp = bytes[i] & 0xff;
String tempHex = Integer.toHexString(temp);
if(tempHex.length() < 2)
{
hexStr += "0"+tempHex;
}
else {
hexStr += tempHex;
}
}
return hexStr;
}
/**
* base64加密
* @param key
* @return
*/
public static String base64Encode(String key){
return (new BASE64Encoder()).encodeBuffer(key.getBytes());
}
/**
* base64解密
* @param key
* @return
*/
public static String base64Decode(String key){
String result = "";
try {
result = new String((new BASE64Decoder()).decodeBuffer(key));
} catch (IOException e) {
FineLoggerFactory.getLogger().info("FRLOG:BASE64解密异常:"+e.getMessage());
}
return result;
}
public static String getBase64DecodeStr(String str){
if(str == null || str.isEmpty()){
return "";
}
String result = base64Decode(str);
return result.contains("base64")?result:str;
}
/**
* 是否被base64加密过
* @param str
* @return
*/
public static boolean isBase64(String str) {
if (str == null || str.trim().length() == 0) {
return false;
}
else {
if (str.length() % 4 != 0) {
return false;
}
char[] strChars = str.toCharArray();
for (char c:strChars) {
if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9')
|| c == '+' || c == '/' || c == '=') {
continue;
}
else {
return false;
}
}
return true;
}
}
public static void main(String[] args) throws Exception {
// String key = "z2bse2zh";
// String key = "ajshcjzj";
// String str = "男";
////
// byte[] a =desEncrypt(str.getBytes(),key);
//// System.out.println(new String(a));
// String a1 = new BASE64Encoder().encodeBuffer(a);
////
// System.out.println(a1);
////
//// byte[] b = desDecrypt(a,key);
//// System.out.println(new String(b));
//
// String key2 = "rdTK5iLsDFw=";
// byte[] b2 = desDecrypt(new BASE64Decoder().decodeBuffer(key2),"ajshcjzj");
// System.out.println(new String(b2));
// //密钥
// String key = "z2bse2zh";
// //解密数据
// String encryDate = "DF2DF0F837C38A1233A8B1255B0532E36E9D29052873B7F8707936C025E2FE368B0A8919A93C8869";
// String a = "ED33AD65CDBAEF49";
// String result = decryptDES(a, key);
//
// System.out.println("result:" + result);
// System.out.println("result2:"+new String(decrypt(result.getBytes(),key)));
}
}