加密库.js

    1. package com.dodonew.online.util;
    3. import android.util.Base64;
    4. import java.security.MessageDigest;
    5. import javax.crypto.Cipher;
    6. import javax.crypto.SecretKey;
    7. import javax.crypto.SecretKeyFactory;
    8. import javax.crypto.spec.DESKeySpec;
    9. import javax.crypto.spec.IvParameterSpec;
    11. public class DesSecurity {
    12.     Cipher deCipher;
    13.     Cipher enCipher;
    15.     public DesSecurity(String key, String iv) throws Exception {
    16.         if (key == null) {
    17.             throw new NullPointerException("Parameter is null!");
    18.         }
    19.         InitCipher(key.getBytes(), iv.getBytes());
    20.     }
    22.     private void InitCipher(byte[] secKey, byte[] secIv) throws Exception {
    23.         MessageDigest md = MessageDigest.getInstance("MD5");
    24.         md.update(secKey);
    25.         SecretKey key = SecretKeyFactory.getInstance("DES").generateSecret(new DESKeySpec(md.digest()));
    26.         IvParameterSpec iv = new IvParameterSpec(secIv);
    27.         this.enCipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
    28.         this.deCipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
    29.         this.enCipher.init(1, key, iv);
    30.         this.deCipher.init(2, key, iv);
    31.     }
    33.     public String encrypt64(byte[] data) throws Exception {
    34.         return Base64.encodeToString(this.enCipher.doFinal(data), 0);
    35.     }
    37.     public byte[] decrypt64(String data) throws Exception {
    38.         return this.deCipher.doFinal(Base64.decode(data, 0));
    39.     }
    40. }
    1. function DES_Encrypt() {
    2.     let iv = CryptoJS.enc.Utf8.parse("32028092");
    3.     let key = CryptoJS.enc.Hex.parse(CryptoJS.MD5("65102933").toString());
    4.     var result = CryptoJS.DES.encrypt(rowdata, key, {
    5.         iv: iv,
    6.         mode: CryptoJS.mode.CBC,
    7.         padding: CryptoJS.pad.Pkcs7
    8.     }).toString();
    9.     return result;
    10. }

    这个apk的重点是对key的解析：

    1.         MessageDigest md = MessageDigest.getInstance("MD5");
    2.         md.update(secKey);
    3.         SecretKey key = SecretKeyFactory.getInstance("DES").generateSecret(new DESKeySpec(md.digest()));

    这儿是把传入的secKey直接md5得出的结果并没有hex解析就放进SecretKeyFactory进行解析
    另外就是，解密的时候，记得吧“\n”删掉
    image.png