Java与js完成des+3des加密 、解密
2017-07-12 16:49
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与移动端进行交换的时候经常遇到需要加密、解密的情况,最近在给移动端做接口,就研究了下加解密,把两种方式汇总一下:
1、des加密、解密
(1)des加解密工具类
DesUtil:
(2)Controller里头直接调用
返回实体MyReturnEntity:按移动端返回要求设置
package com.loan.fore.util;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
public class MyReturnEntity {
private Integer returnStatus=200;
private String returnReason="OK";
private String remarks="No remarks";//中文乱码
private Integer returnTotal=0;
// private List returnMessage=new ArrayList();
private Map<String, Object> returnInformation = new HashMap<String, Object>();
public Map<String, Object> getReturnInformation() {
return returnInformation;
}
public MyReturnEntity setReturnInformation(Map<String, Object> returnInformation) {
this.returnInformation = returnInformation;
return this;
}
public MyReturnEntity() {
// TODO Auto-generated constructor stub
}
public MyReturnEntity(Map<String, Object> returnInformation) {
this.setReturnInformation(returnInformation);
// setReturnMessage(returnMessage);
}
public MyReturnEntity(Integer returnStatus, String returnReason, String remarks) {
this.returnStatus = returnStatus;
this.returnReason = returnReason;
this.remarks = remarks;
}
public MyReturnEntity(Integer returnStatus, String returnReason, String remarks, List returnMessage) {
this.returnStatus = returnStatus;
this.returnReason = returnReason;
this.remarks = remarks;
this.setReturnInformation(returnInformation);
// setReturnMessage(returnMessage);
}
public Integer getReturnStatus() {
return returnStatus;
}
public void setReturnStatus(Integer returnStatus) {
this.returnStatus = returnStatus;
}
public String getReturnReason() {
return returnReason;
}
public void setReturnReason(String returnReason) {
this.returnReason = returnReason;
}
public String getRemarks() {
return remarks;
}
public void setRemarks(String remarks) {
this.remarks = remarks;
}
public Integer getReturnTotal() {
return returnTotal;
}
public void setReturnTotal(Integer returnTotal) {
this.returnTotal = returnTotal;
}
// public List getReturnMessage() {
// return returnMessage;
// }
//
// public void setReturnMessage(List returnMessage) {
// this.returnMessage = returnMessage;
//
// returnTotal=returnMessage==null?0:returnMessage.size();
// }
//
// public MyReturnEntity set(List returnMessage){
//
// if (returnMessage==null) return this.set(new ArrayList());
//
// this.returnMessage = returnMessage;
//
// returnTotal=Optional.ofNullable(returnMessage).map(s->s.size()).orElse(0);
//
// return this;
// }
public MyReturnEntity put(Map<String, Object> returnInformation) {
if (returnInformation == null) {
return this.setReturnInformation(new HashMap<String, Object>());
} else {
this.returnInformation = returnInformation;
returnTotal=Optional.ofNullable(returnInformation).map(s->s.size()).orElse(0);
return this;
}
}
}
package com.loan.fore.util;
//返回消息的工具类
public class ReturnEntityUtils {
//加密验证失败
public static final MyReturnEntity ENCRYFAIL_RETURN=new MyReturnEntity(401,"Invalid encry","非法加密");
//cookie验证失败
public static final MyReturnEntity COOKIEFAIL_RETURN=new MyReturnEntity(401, "Invalid Cookie", "非法 Cookie");
//header验证失败
public static final MyReturnEntity HEADERFAIL_RETURN=new MyReturnEntity(401, "Invalid Header", "非法 Header");
//成功返回,调用时需要.set() 设置返回数据
public static
bed5
final MyReturnEntity SUCCESS_RETURN=new MyReturnEntity();
}
加密:
@RequestMapping("DES")
public void test_des(String ciphertext, HttpServletRequest req, HttpServletResponse rep) throws IOException{
rep.setContentType("application/json;charset=utf-8");
System.out.println("DES接收到的密文: "+ciphertext);
//解密得到明文
try {
String res = DesUtil.decryptDES(ciphertext);
System.out.println("des解密明文: "+res);
}catch (Exception e) {
e.printStackTrace();
}
rep.getWriter().write(JSON.toJSONString(ReturnEntityUtils.SUCCESS_RETURN.put(map)));
}
以上基本des加密就完成了。
2、3des加密解密
3des只有Java部分哦,js部分没有找,如果需要自己找哦~
(1)3des 工具类
(2)调用的话直接通过 如下调用就可以:
加密:
@ResponseBody
@RequestMapping("threeDES")
public String test_3des(HttpServletRequest req, HttpServletResponse rep) throws IOException{
Map<String, Object> map = new HashMap<>();
map.put("result", "成功");
String resCiphertext = null;
try {
System.out.println(JSON.toJSONString(map));
resCiphertext = ThreeDESUtil.encryptThreeDESECB(JSON.toJSONString(map), ThreeDESUtil.KEY);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Map<String, Object> map2 = new HashMap<>();
map2.put("dec", resCiphertext);
//rep.getWriter().write(resCiphertext);
return JSON.toJSONString(map2);
}解密:
以上就是des+3des加解密
按移动端返回要求设置
1、des加密、解密
(1)des加解密工具类
DesUtil:
package com.loan.fore.util; import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; /** * * <b>描述:</b> DES加解密 * <br><b>作者:</b> * <br><b>版本:</b>1.0 * <br><b>ProjectName:</b> loan-utils * <br><b>PackageName:</b> com.loan.fore.util * <br><b>ClassName:</b> DesUtil * <br><b>Date:</b> 2017年8月3日 下午2:10:40 */ public class DesUtil { private static byte[] iv = { 1, 2, 3, 4, 5, 6, 7, 8 }; public static final String KEY = "cf410f84"; public static String encryptDES(String encryptString) throws Exception { IvParameterSpec zeroIv = new IvParameterSpec(iv); SecretKeySpec key = new SecretKeySpec(KEY.getBytes(), "DES"); Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv); byte[] encryptedData = cipher.doFinal(encryptString.getBytes()); return Base64.encode(encryptedData); } public static String decryptDES(String decryptString) throws Exception { byte[] byteMi = Base64.decode(decryptString); IvParameterSpec zeroIv = new IvParameterSpec(iv); SecretKeySpec key = new SecretKeySpec(KEY.getBytes(), "DES"); Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, key, zeroIv); byte decryptedData[] = cipher.doFinal(byteMi); return new String(decryptedData); } public static void main(String[] args) throws Exception { String encryptDES = encryptDES("abc"); System.out.println(encryptDES); String decryptDES = decryptDES("MpWN08fvUgw="); System.out.println(decryptDES); } }
/** * */ package com.loan.fore.util; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.OutputStream; /** * <b>描述:</b> * <br><b>作者:</b> * <br><b>版本:</b>1.0 * <br><b>ProjectName:</b> loan-utils * <br><b>PackageName:</b> com.loan.fore.util * <br><b>ClassName:</b> Base64 * <br><b>Date:</b> 2017年8月3日 下午5:44:10 */ public class Base64 { private static final char[] legalChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" .toCharArray(); /** * data[]进行编码 * * @param data * @return */ public static String encode(byte[] data) { int start = 0; int len = data.length; StringBuffer buf = new StringBuffer(data.length * 3 / 2); int end = len - 3; int i = start; int n = 0; while (i <= end) { int d = ((((int) data[i]) & 0x0ff) << 16) | ((((int) data[i + 1]) & 0x0ff) << 8) | (((int) data[i + 2]) & 0x0ff); buf.append(legalChars[(d >> 18) & 63]); buf.append(legalChars[(d >> 12) & 63]); buf.append(legalChars[(d >> 6) & 63]); buf.append(legalChars[d & 63]); i += 3; if (n++ >= 14) { n = 0; buf.append(" "); } } if (i == start + len - 2) { int d = ((((int) data[i]) & 0x0ff) << 16) | ((((int) data[i + 1]) & 255) << 8); buf.append(legalChars[(d >> 18) & 63]); buf.append(legalChars[(d >> 12) & 63]); buf.append(legalChars[(d >> 6) & 63]); buf.append("="); } else if (i == start + len - 1) { int d = (((int) data[i]) & 0x0ff) << 16; buf.append(legalChars[(d >> 18) & 63]); buf.append(legalChars[(d >> 12) & 63]); buf.append("=="); } return buf.toString(); } public static byte[] decode(String s) { ByteArrayOutputStream bos = new ByteArrayOutputStream(); try { decode(s, bos); } catch (IOException e) { throw new RuntimeException(); } byte[] decodedBytes = bos.toByteArray(); try { bos.close(); bos = null; } catch (IOException ex) { System.err.println("Error while decoding BASE64: " + ex.toString()); } return decodedBytes; } private static void decode(String s, OutputStream os) throws IOException { int i = 0; int len = s.length(); while (true) { while (i < len && s.charAt(i) <= ' ') i++; if (i == len) break; int tri = (decode(s.charAt(i)) << 18) + (decode(s.charAt(i + 1)) << 12) + (decode(s.charAt(i + 2)) << 6) + (decode(s.charAt(i + 3))); os.write((tri >> 16) & 255); if (s.charAt(i + 2) == '=') break; os.write((tri >> 8) & 255); if (s.charAt(i + 3) == '=') break; os.write(tri & 255); i += 4; } } private static int decode(char c) { if (c >= 'A' && c <= 'Z') return ((int) c) - 65; else if (c >= 'a' && c <= 'z') return ((int) c) - 97 + 26; else if (c >= '0' && c <= '9') return ((int) c) - 48 + 26 + 26; else switch (c) { case '+': return 62; case '/': return 63; case '=': return 0; default: throw new RuntimeException("unexpected code: " + c); } } }
(2)Controller里头直接调用
返回实体MyReturnEntity:按移动端返回要求设置
package com.loan.fore.util;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
public class MyReturnEntity {
private Integer returnStatus=200;
private String returnReason="OK";
private String remarks="No remarks";//中文乱码
private Integer returnTotal=0;
// private List returnMessage=new ArrayList();
private Map<String, Object> returnInformation = new HashMap<String, Object>();
public Map<String, Object> getReturnInformation() {
return returnInformation;
}
public MyReturnEntity setReturnInformation(Map<String, Object> returnInformation) {
this.returnInformation = returnInformation;
return this;
}
public MyReturnEntity() {
// TODO Auto-generated constructor stub
}
public MyReturnEntity(Map<String, Object> returnInformation) {
this.setReturnInformation(returnInformation);
// setReturnMessage(returnMessage);
}
public MyReturnEntity(Integer returnStatus, String returnReason, String remarks) {
this.returnStatus = returnStatus;
this.returnReason = returnReason;
this.remarks = remarks;
}
public MyReturnEntity(Integer returnStatus, String returnReason, String remarks, List returnMessage) {
this.returnStatus = returnStatus;
this.returnReason = returnReason;
this.remarks = remarks;
this.setReturnInformation(returnInformation);
// setReturnMessage(returnMessage);
}
public Integer getReturnStatus() {
return returnStatus;
}
public void setReturnStatus(Integer returnStatus) {
this.returnStatus = returnStatus;
}
public String getReturnReason() {
return returnReason;
}
public void setReturnReason(String returnReason) {
this.returnReason = returnReason;
}
public String getRemarks() {
return remarks;
}
public void setRemarks(String remarks) {
this.remarks = remarks;
}
public Integer getReturnTotal() {
return returnTotal;
}
public void setReturnTotal(Integer returnTotal) {
this.returnTotal = returnTotal;
}
// public List getReturnMessage() {
// return returnMessage;
// }
//
// public void setReturnMessage(List returnMessage) {
// this.returnMessage = returnMessage;
//
// returnTotal=returnMessage==null?0:returnMessage.size();
// }
//
// public MyReturnEntity set(List returnMessage){
//
// if (returnMessage==null) return this.set(new ArrayList());
//
// this.returnMessage = returnMessage;
//
// returnTotal=Optional.ofNullable(returnMessage).map(s->s.size()).orElse(0);
//
// return this;
// }
public MyReturnEntity put(Map<String, Object> returnInformation) {
if (returnInformation == null) {
return this.setReturnInformation(new HashMap<String, Object>());
} else {
this.returnInformation = returnInformation;
returnTotal=Optional.ofNullable(returnInformation).map(s->s.size()).orElse(0);
return this;
}
}
}
package com.loan.fore.util;
//返回消息的工具类
public class ReturnEntityUtils {
//加密验证失败
public static final MyReturnEntity ENCRYFAIL_RETURN=new MyReturnEntity(401,"Invalid encry","非法加密");
//cookie验证失败
public static final MyReturnEntity COOKIEFAIL_RETURN=new MyReturnEntity(401, "Invalid Cookie", "非法 Cookie");
//header验证失败
public static final MyReturnEntity HEADERFAIL_RETURN=new MyReturnEntity(401, "Invalid Header", "非法 Header");
//成功返回,调用时需要.set() 设置返回数据
public static
bed5
final MyReturnEntity SUCCESS_RETURN=new MyReturnEntity();
}
加密:
@ResponseBody @RequestMapping("DES") public String test_des() throws Exception{ Map<String, Object> map = new HashMap<>(); map.put("result", "成功"); ProductInfo productInfo=new ProductInfo(); productInfo.setKeyId(1562352); map.put("product", productInfo); //加密得到密文 String resCiphertext = DesUtil.encryptDES((JSON.toJSONString(map))); System.out.println("des加密密文: "+resCiphertext); Map<String, Object> map2 = new HashMap<>(); map2.put("dec", resCiphertext); return JSON.toJSONString(ReturnEntityUtils.SUCCESS_RETURN.put(map2)); }
@RequestMapping("DES")
public void test_des(String ciphertext, HttpServletRequest req, HttpServletResponse rep) throws IOException{
rep.setContentType("application/json;charset=utf-8");
System.out.println("DES接收到的密文: "+ciphertext);
//解密得到明文
try {
String res = DesUtil.decryptDES(ciphertext);
System.out.println("des解密明文: "+res);
}catch (Exception e) {
e.printStackTrace();
}
rep.getWriter().write(JSON.toJSONString(ReturnEntityUtils.SUCCESS_RETURN.put(map)));
}
以上基本des加密就完成了。
2、3des加密解密
3des只有Java部分哦,js部分没有找,如果需要自己找哦~
(1)3des 工具类
按移动端返回要求设置 package com.loan.fore.util; import java.util.Base64; import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; public class ThreeDESUtil { public static final String KEY = "*******";//移动端约定好的key public static final boolean ISENABLED=true; /** * DESCBC加密 * * @param src * 数据源 * @param key * 密钥,长度必须是8的倍数 * @return 返回加密后的数据 Base64编码 * @throws Exception */ // 3DESECB加密,key必须是长度大于等于 3*8 = 24 位 public static String encryptThreeDESECB(final String src, final String key) throws Exception { final DESedeKeySpec dks = new DESedeKeySpec(key.getBytes("UTF-8")); final SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede"); final SecretKey securekey = keyFactory.generateSecret(dks); final Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, securekey); final byte[] b = cipher.doFinal(src.getBytes()); String res=Base64.getEncoder().encodeToString(b); return res; } /** * DESCBC解密 * * @param src * 加密之后的数据 * @param key * 密钥,长度必须是8的倍数 * @return 明码 * @throws Exception */ // 3DESECB解密,key必须是长度大于等于 3*8 = 24 位 public static String decryptThreeDESECB(final String src, final String key) throws Exception { // --通过base64,将字符串转成byte数组 //final byte[] bytesrc = Base64.getDecoder().decode(src); final byte[] bytesrc=Base64.getMimeDecoder().decode(src); //byte[] bytesrc=src.getBytes(); // --解密的key final DESedeKeySpec dks = new DESedeKeySpec(key.getBytes("UTF-8")); final SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede"); final SecretKey securekey = keyFactory.generateSecret(dks); // --Chipher对象解密 final Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, securekey); final byte[] retByte = cipher.doFinal(bytesrc); return new String(retByte); } public static void main(String[] args) throws Exception { final String key = ThreeDESUtil.KEY; // 加密流程 String telePhone = "{\"id\":29}"; // telePhone_encrypt = ThreeDESUtil.encryptThreeDESECB(URLEncoder.encode(telePhone, "UTF-8"), key); String telePhone_encrypt2=ThreeDESUtil.encryptThreeDESECB(telePhone, key); System.out.println(telePhone_encrypt2); // 解密流程 String tele_decrypt = ThreeDESUtil.decryptThreeDESECB("8hd/SyOpCYD/rL5I9g45IQ==", key); System.out.println("模拟代码解密:" + tele_decrypt); } }
(2)调用的话直接通过 如下调用就可以:
加密:
@ResponseBody
@RequestMapping("threeDES")
public String test_3des(HttpServletRequest req, HttpServletResponse rep) throws IOException{
Map<String, Object> map = new HashMap<>();
map.put("result", "成功");
String resCiphertext = null;
try {
System.out.println(JSON.toJSONString(map));
resCiphertext = ThreeDESUtil.encryptThreeDESECB(JSON.toJSONString(map), ThreeDESUtil.KEY);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Map<String, Object> map2 = new HashMap<>();
map2.put("dec", resCiphertext);
//rep.getWriter().write(resCiphertext);
return JSON.toJSONString(map2);
}解密:
@RequestMapping(value="threeDES") public void test_3des(HttpServletRequest req, String ciphertext, HttpServletResponse rep) throws IOException{ String res=""; rep.setContentType("application/json;charset=utf-8"); Map<String, Object> map = new HashMap<>(); System.out.println("3DES接收到的密文: "+ciphertext); try { //解密得到明文 res = ThreeDESUtil.decryptThreeDESECB(ciphertext, ThreeDESUtil.KEY); } catch (Exception e) { e.printStackTrace(); } rep.getWriter().write(JSON.toJSONString(ReturnEntityUtils.SUCCESS_RETURN.put(map))); }
以上就是des+3des加解密
按移动端返回要求设置
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