|
|
@ -0,0 +1,168 @@
|
|
|
package com.yihu.jw.hospital.prescription.service.entrance.util;
|
|
|
|
|
|
import java.security.NoSuchAlgorithmException;
|
|
|
|
|
|
import javax.crypto.Cipher;
|
|
|
import javax.crypto.KeyGenerator;
|
|
|
import javax.crypto.SecretKey;
|
|
|
import javax.crypto.spec.IvParameterSpec;
|
|
|
import javax.crypto.spec.SecretKeySpec;
|
|
|
|
|
|
import com.yihu.jw.utils.encode.Base64;
|
|
|
import sun.misc.BASE64Decoder;
|
|
|
import sun.misc.BASE64Encoder;
|
|
|
|
|
|
public class AES {
|
|
|
|
|
|
public static String encrypt(String strKey, String strIn) {
|
|
|
try {
|
|
|
SecretKeySpec skeySpec = getKey(strKey);
|
|
|
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
|
|
|
IvParameterSpec iv = new IvParameterSpec(
|
|
|
"0102030405060708".getBytes());
|
|
|
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
|
|
|
byte[] encrypted = cipher.doFinal(strIn.getBytes("UTF-8"));
|
|
|
|
|
|
return Base64.encode(encrypted);
|
|
|
} catch (Exception e) {
|
|
|
e.printStackTrace();
|
|
|
return null;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
public static String decrypt(String strKey, String strIn) throws Exception {
|
|
|
try {
|
|
|
SecretKeySpec skeySpec = getKey(strKey);
|
|
|
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
|
|
|
IvParameterSpec iv = new IvParameterSpec(
|
|
|
"0102030405060708".getBytes());
|
|
|
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
|
|
|
byte[] encrypted1 = Base64.decode(strIn);
|
|
|
|
|
|
byte[] original = cipher.doFinal(encrypted1);
|
|
|
String originalString = new String(original, "UTF-8");
|
|
|
return originalString;
|
|
|
} catch (Exception e) {
|
|
|
e.printStackTrace();
|
|
|
return null;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
private static SecretKeySpec getKey(String strKey) throws Exception {
|
|
|
byte[] arrBTmp = strKey.getBytes();
|
|
|
byte[] arrB = new byte[16]; // 创建一个空的16位字节数组（默认值为0）
|
|
|
|
|
|
for (int i = 0; i < arrBTmp.length && i < arrB.length; i++) {
|
|
|
arrB[i] = arrBTmp[i];
|
|
|
}
|
|
|
|
|
|
SecretKeySpec skeySpec = new SecretKeySpec(arrB, "AES");
|
|
|
|
|
|
return skeySpec;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 随机生成秘钥
|
|
|
*/
|
|
|
public static void generateKey(){
|
|
|
try {
|
|
|
KeyGenerator kg = KeyGenerator.getInstance("AES");
|
|
|
kg.init(128);//要生成多少位，只需要修改这里即可128, 192或256
|
|
|
SecretKey sk = kg.generateKey();
|
|
|
byte[] b = sk.getEncoded();
|
|
|
String s = byteToHexString(b);
|
|
|
System.out.println(s);
|
|
|
System.out.println("十六进制密钥长度为"+s.length());
|
|
|
System.out.println("二进制密钥的长度为"+s.length()*4);
|
|
|
} catch (NoSuchAlgorithmException e) {
|
|
|
e.printStackTrace();
|
|
|
System.out.println("没有此算法。");
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* byte数组转化为16进制字符串
|
|
|
* @param bytes
|
|
|
* @return
|
|
|
*/
|
|
|
public static String byteToHexString(byte[] bytes){
|
|
|
StringBuffer sb = new StringBuffer();
|
|
|
for (int i = 0; i < bytes.length; i++) {
|
|
|
String strHex=Integer.toHexString(bytes[i]);
|
|
|
if(strHex.length() > 3){
|
|
|
sb.append(strHex.substring(6));
|
|
|
} else {
|
|
|
if(strHex.length() < 2){
|
|
|
sb.append("0" + strHex);
|
|
|
} else {
|
|
|
sb.append(strHex);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
return sb.toString();
|
|
|
}
|
|
|
|
|
|
public static String signConvertToPara(String region) {
|
|
|
String target = "";
|
|
|
if (region != null) {
|
|
|
target = region.replaceAll("\\+", "%2B").replaceAll("\\ ", "%20")
|
|
|
.replaceAll("\\/", "%2F").replaceAll("\\?", "%3F")
|
|
|
.replaceAll("\\#", "%23").replaceAll("\\&", "%26")
|
|
|
.replaceAll("\\=", "%3D");
|
|
|
}
|
|
|
return target;
|
|
|
}
|
|
|
|
|
|
public static String paraConvertsign(String region) {
|
|
|
String target = "";
|
|
|
if (region != null) {
|
|
|
target = region.replaceAll("%2B", "+").replaceAll("%20", " ")
|
|
|
.replaceAll("%2F", "/").replaceAll("%3F", "?")
|
|
|
.replaceAll("%25", "%").replaceAll("%23", "#")
|
|
|
.replaceAll("%26", "&").replaceAll("%3D", "=");
|
|
|
}
|
|
|
return target;
|
|
|
}
|
|
|
//用于和c#互通的加解密
|
|
|
//https://www.jianshu.com/p/9483c9ea3a04
|
|
|
/**
|
|
|
* AES的加密函数
|
|
|
* @param str 传入需要加密的字符
|
|
|
* @param key 传入一个16位长度的密钥。否则报错
|
|
|
* @return 执行成功返回加密结果，否则报错
|
|
|
* @throws Exception 抛出一个加密异常
|
|
|
*/
|
|
|
public static String aesEncrypt(String str, String key) throws Exception {
|
|
|
if (str == null || key == null) return null;
|
|
|
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
|
|
|
cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(key.getBytes("utf-8"), "AES"));
|
|
|
byte[] bytes = cipher.doFinal(str.getBytes("utf-8"));
|
|
|
return new BASE64Encoder().encode(bytes);
|
|
|
}
|
|
|
/**
|
|
|
* AES的解密函数
|
|
|
* @param str 传入需要解密的字符
|
|
|
* @param key 传入一个16位长度的密钥。否则报错
|
|
|
* @return 执行成功返回加密结果，否则报错
|
|
|
* @throws Exception 抛出一个解密异常
|
|
|
*/
|
|
|
public static String aesDecrypt(String str, String key) throws Exception {
|
|
|
if (str == null || key == null) return null;
|
|
|
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
|
|
|
cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(key.getBytes("utf-8"), "AES"));
|
|
|
byte[] bytes = new BASE64Decoder().decodeBuffer(str);
|
|
|
bytes = cipher.doFinal(bytes);
|
|
|
return new String(bytes, "utf-8");
|
|
|
}
|
|
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
|
generateKey();
|
|
|
String testKey = "xmxzzxtj";
|
|
|
String testEn = AES.encrypt(testKey, "{'function':'healthExam','yyid00':'220006','userId':'','name':'','phone':'','identityCard':'','icCard':''}");
|
|
|
System.out.println(testEn);
|
|
|
String testDe = AES.decrypt(testKey, testEn);
|
|
|
System.out.println(testDe);
|
|
|
|
|
|
|
|
|
}
|
|
|
}
|
wangzhinan