Free-Abc智能java代码如下
文件
ASEUtils.java
package com.paic.yzt.dmps.common.utils;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.binary.StringUtils;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
/**
* @Auther: LI LIN 073
* @Date: 2019/8/12 09:51
* @Description:
*/
public class AESUtils {
private static final String KEY_ALGORITHM = "AES";
private static final String CHAR_SET = "UTF-8";
/**
* AES的密钥长度
*/
private static final Integer SECRET_KEY_LENGTH = 128;
/**
* 加密算法
* "/算法/模式/补码方式"
*/
private static final String DEFAULT_CIPHER_ALGORITHM = "AES/ECB/PKCS5Padding";
public static String encrypt(String content, String password) {
try {
SecretKey key = getSecretKey(password);
//创建一个实现指定转换的 Cipher对象，该转换由指定的提供程序提供。
Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] byteContent = content.getBytes(CHAR_SET);
byte[] cryptograph = cipher.doFinal(byteContent);
return new String(Base64.encodeBase64(cryptograph));
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static String decrypt(String cryptograph, String password) {
try {
SecretKey key = getSecretKey(password);
Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] content = cipher.doFinal(Base64.decodeBase64(cryptograph));
return new String(content,CHAR_SET);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
private static SecretKey getSecretKey(String password) throws Exception {
if (org.apache.commons.lang.StringUtils.isBlank(password)) {
throw new NullPointerException("key not is null");
}
SecretKeySpec keySpec = null;
try {
//"AES"：请求的密钥算法的标准名称
KeyGenerator kgen = KeyGenerator.getInstance(KEY_ALGORITHM);
//256：密钥生成参数；securerandom：密钥生成器的随机源
//SecureRandom securerandom = new SecureRandom(tohash256Deal(password));
SecureRandom securerandom = SecureRandom.getInstance("SHA1PRNG");
securerandom.setSeed(tohash256Deal(password));
kgen.init(SECRET_KEY_LENGTH, securerandom);
//生成秘密（对称）密钥
SecretKey secretKey = kgen.generateKey();
//返回基本编码格式的密钥
byte[] enCodeFormat = secretKey.getEncoded();
//根据给定的字节数组构造一个密钥。enCodeFormat：密钥内容；"AES"：与给定的密钥内容相关联的密钥算法的名称
keySpec = new SecretKeySpec(enCodeFormat, KEY_ALGORITHM);
} catch (NoSuchAlgorithmException ex) {
throw new NoSuchAlgorithmException();
}
return keySpec;
}
private static byte[] tohash256Deal(String datastr) {
try {
MessageDigest digester=MessageDigest.getInstance("SHA-256");
digester.update(datastr.getBytes());
byte[] hex=digester.digest();
return hex;
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e.getMessage());
}
}
public static void main(String[] args){
String password="123abc";
String content="15067179625";
String cryptograph = encrypt(content,password);
System.out.println("加密后："+cryptograph);
String decrypt = decrypt(cryptograph,password);
System.out.println("解密后："+decrypt);
}
}
————————————————————————————-
因为java端不是单纯的做的aes 加密， 而是将 key 又多做了一次sha256 hash
网上一直找不到sha256，自己盲测了很久终于摸索出了能匹配上java 的php代码
classAesUtil
{
/**
*
*@paramstring$string需要加密的字符串
*@paramstring$key密钥
*@returnstring
*/
public static function encrypt($string,$key){
//对接java，服务商做的AES加密通过SHA1PRNG算法（只要password一样，每次生成的数组都是一样的），Java的加密源码翻译php如下：
//$key=substr(openssl_digest(openssl_digest($key,'sha256',true),'sha1',true),0,16);
//$key=openssl_digest(openssl_digest($key,'sha256',true),'sha256',true);
$key=openssl_digest($key,'sha256',true);
//$key=hash("sha256",$key);
$key=openssl_digest(openssl_digest($key,'sha1',true),'sha1',true);
//var_dump($keys=bin2hex($key));
$key=substr($key,0,16);
//openssl_encrypt加密不同Mcrypt，对秘钥长度要求，超出16加密结果不变
$data=openssl_encrypt($string,'AES-128-ECB',$key,OPENSSL_RAW_DATA);
$data=base64_encode($data);
return$data;
}
/**
*@paramstring$string需要解密的字符串
*@paramstring$key密钥
*@returnstring
*/
public static function decrypt($string,$key){
//对接java，服务商做的AES加密通过SHA1PRNG算法（只要password一样，每次生成的数组都是一样的），Java的加密源码翻译php如下：
//原始算法是不需要做sha256的，这里是因为java端在原始key基础上做了一次混淆运算
$key=openssl_digest($key,'sha256',true);
//$key=hash("sha256",$key);
$key=openssl_digest(openssl_digest($key,'sha1',true),'sha1',true);
//var_dump($keys=bin2hex($key));
$key=substr($key,0,16);
$decrypted=openssl_decrypt(base64_decode($string),'AES-128-ECB',$key,OPENSSL_RAW_DATA);
return$decrypted;
}
}