离子v3 AES 256算法使用加密无法在Java AES / GCM / noPadding算法中解密

如何解决离子v3 AES 256算法使用加密无法在Java AES / GCM / noPadding算法中解密

我们正在开发基于ionc v3的移动应用程序，我们必须在前端加密密码，并且需要在Java中间件级别解密密码。现在ionic v3我们进行了示例加密，但是加密后的数据无法在我们的Java中解密。请在下面的ionic和Java代码中提出建议，我们必须在此进行更改。

ionic v3 AES 256示例代码

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';
import { AES256 } from '@ionic-native/aes-256';
import { Platform } from 'ionic-angular/index';
import * as CryptoJS from 'crypto-js';
@Component({
  selector: 'page-home',templateUrl: 'home.html'
})
export class HomePage {
  text: string;
 private secureKey:string ;// Any string,the length should be 32
 private secureIV:string ;
 private password = "test@123"
 
  EncryptedData :string;
  constructor(public navCtrl: NavController,private aes256: AES256,private platform: Platform) {
 
   this.generateSecureKey(this.password);
  this.generateSecureIV(this.password);
  }
  

  generateSecureKey(password) {
    this.platform.ready().then(() => {
      this.aes256.generateSecureKey(password).then((secureKey)  => {
          this.secureKey = secureKey;
          console.log('Secure Key----',secureKey);          
        },(error) => {
          console.log('Error----',error);
        });
    });
  }
  generateSecureIV(password) {
    this.platform.ready().then(() => {
      this.aes256.generateSecureIV(password).then((secureIV)  => {
        this.secureIV = secureIV;
          console.log('Secure Key----',secureIV);          
        },error);
        });
    });
  }
  encrypt() {
  this.platform.ready().then(() => {
   
  this.aes256.encrypt(this.secureKey,this.secureIV,this.text)
  
  .then(res =>  {alert('Encrypted Data: '+res)
  console.log("Secure Key" +this.secureKey);
  console.log("Secure Key" +this.secureIV);
  this.EncryptedData = res;
  console.log(EncryptedData);
  })
  .catch((error: any) => console.error(error));
   });
 }
 decrypt() {
  this.platform.ready().then(() => {
  this.aes256.decrypt(this.secureKey,this.EncryptedData)
  .then(res => { alert('Decrypted Data : '+res)
  console.log("Secure Key" +this.secureKey);
  console.log("Secure Key" +this.secureIV);
  
})
  .catch((error: any) => console.error(error));

});
 }
}

Java代码示例：

package com.test.reactapi;

import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
import java.util.Base64;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.GCMParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;


public class TestEncry {
    
    private static final String ENCRYPT_ALGO = "AES/GCM/nopadding";

    private static final int TAG_LENGTH_BIT = 128;

    private static final Charset UTF_8 = StandardCharsets.UTF_8;
    
    
    public static String encrypt(byte[] pText) throws Exception {
        String password = "test@123";
        byte[] salt = getRandomNonce(32);
        byte[] iv = getRandomNonce(12);
        SecretKey aesKeyFromPassword = getAESKeyFromPassword(password.tochararray(),salt);
        Cipher cipher = Cipher.getInstance(ENCRYPT_ALGO);
        cipher.init(1,aesKeyFromPassword,new GCMParameterSpec(TAG_LENGTH_BIT,iv));
        byte[] cipherText = cipher.doFinal(pText);
        byte[] cipherTextWithIvSalt = ByteBuffer.allocate(iv.length + salt.length + cipherText.length).put(iv).put(salt)
                .put(cipherText).array();
        return Base64.getEncoder().encodetoString(cipherTextWithIvSalt);
    }

    public static SecretKey getAESKeyFromPassword(char[] password,byte[] salt)
            throws NoSuchAlgorithmException,InvalidKeySpecException {

        SecretKeyFactory factory = SecretKeyFactory.getInstance("SHA256");
        KeySpec spec = new PBEKeySpec(password,salt,65536,256);
        return new SecretKeySpec(factory.generateSecret(spec).getEncoded(),"AES");

    }

    public static String decrypt(String cText) throws Exception {
        
        byte[] plainText = null;
        
        try {
        String password = "test@123";
        byte[] decode = Base64.getDecoder().decode(cText.getBytes(UTF_8));
        ByteBuffer bb = ByteBuffer.wrap(decode);
        byte[] iv = new byte[12];
        bb.get(iv);
        byte[] salt = new byte[32];
        bb.get(salt);
        byte[] cipherText = new byte[bb.remaining()];
        bb.get(cipherText);
        SecretKey aesKeyFromPassword = getAESKeyFromPassword(password.tochararray(),salt);
        Cipher cipher = Cipher.getInstance(ENCRYPT_ALGO);
        cipher.init(2,new GCMParameterSpec(128,iv));
        plainText = cipher.doFinal(cipherText);
        
        } catch (Exception e) {
            e.printstacktrace();
        }
        return new String(plainText,UTF_8);
    
    }
    
    public static byte[] getRandomNonce(int numBytes) {
        byte[] nonce = new byte[numBytes];
        new SecureRandom().nextBytes(nonce);
        return nonce;
    }

    public static void main(String[] args) throws Exception {
    
            System.out.println("Decrypted pwd:" + decrypt("kkkkkk/kllmnn=="));
}
    
    

}

请提供建议并帮助我们

错误：

java.nio.BufferUnderflowException
    at java.nio.HeapByteBuffer.get(HeapByteBuffer.java:151)
    at java.nio.ByteBuffer.get(ByteBuffer.java:715)
    at com.test.reactapi.TestEncry.decrypt(TestEncry.java:62)
    at com.test.reactapi.TestEncry.main(TestEncry.java:90)
Exception in thread "main" java.lang.NullPointerException
    at java.lang.String.<init>(String.java:515)
    at com.test.reactapi.TestEncry.decrypt(TestEncry.java:73)
    at com.test.reactapi.TestEncry.main(TestEncry.java:90)