到目前为止，我搜索了很多关于解密 whatsapp db file 的扩展名为
.db.crypt5
但没有办法对我有效。我尝试了一个 Crypto.class ，在stackoverflow链接中可以看到很多东西来读取WhatsApp数据库文件，但该文件对我来说也不起作用。
这是我的 Crypto.class ：
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.spec.SecretKeySpec;
import android.util.Log;
public class Crypto
{
public FileInputStream mIn;
public FileOutputStream mOut;
public Crypto(String fileIn, String fileOut)
{
try
{
mIn = new FileInputStream(new File(fileIn));
mOut = new FileOutputStream(new File(fileOut));
decrypt(mIn, mOut);
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static void decrypt(InputStream in, FileOutputStream out) throws Exception
{
final String string = "346a23652a46392b4d73257c67317e352e3372482177652c";
byte[] hexAsBytes = hexStringToByteArray(string);
SecretKeySpec keySpec = new SecretKeySpec(hexAsBytes, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, keySpec);
in = new CipherInputStream(in, cipher);
byte[] buffer = new byte[24];
int bytesRead;
while ((bytesRead = in.read(buffer)) != -1)
{
out.write(buffer, 0, bytesRead);
String si = new String(buffer);
Log.d("Crypto", si);
}
}
public static byte[] hexStringToByteArray(String s)
{
int len = s.length();
byte[] data = new byte[len / 2];
for(int i = 0; i < len; i += 2)
{
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character.digit(s.charAt(i + 1), 16));
}
return data;
}
}
这就是我在我的活动中调用构造函数的方式：
Crypto c = new Crypto("/sdcard/WhatsApp/Databases/msgstore.db.crypt5", "/sdcard/My_Folder_Name/watsapp");
我只想解密此文件并查看所有聊天内容。为了测试，我正在尝试使用此文件 msgstore.db.crypt5 。
我在做错的地方需要帮助吗？
答案 0 :(得分：7)
我通过以下方式完成了这项工作：
根设备并尝试此代码::
public void copyDbToSdcard()
{
try
{
String comando = "cp -r /data/data/com.whatsapp/databases/msgstore.db /sdcard/My_Custom_Folder/";
Process suProcess = Runtime.getRuntime().exec("su");
DataOutputStream os = new DataOutputStream(suProcess.getOutputStream());
os.writeBytes(comando + "\n");
os.flush();
os.writeBytes("exit\n");
os.flush();
try
{
int suProcessRetval = suProcess.waitFor();
if(255 != suProcessRetval)
{
//
}
else
{
//
}
}
catch (Exception ex)
{
Log.e("ERROR-->", ex.toString());
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
private void openAndQueryDatabase()
{
try
{
DataBaseHelper dbHelper = new DataBaseHelper(this.getApplicationContext());
newDB = dbHelper.getWritableDatabase();
Cursor c = newDB.rawQuery("SELECT data FROM messages where data!=''", null);
if(c != null)
{
if(c.moveToFirst())
{
do
{
String data = c.getString(c.getColumnIndex("data"));
results.add(data); //adding to arrayList
}
while (c.moveToNext());
}
}
while (c3.moveToNext());
}
}
}
catch (SQLiteException se)
{
Log.e(getClass().getSimpleName(), "Could not create or Open the database");
}
}
然后在TextView或您想要的任何地方显示结果。
答案 1 :(得分：3)
一旦你有权访问dbcrypt5文件，这里有解密它的android代码：
private byte[] key = { (byte) 141, 75, 21, 92, (byte) 201, (byte) 255,
(byte) 129, (byte) 229, (byte) 203, (byte) 246, (byte) 250, 120,
25, 54, 106, 62, (byte) 198, 33, (byte) 166, 86, 65, 108,
(byte) 215, (byte) 147 };
private final byte[] iv = { 0x1E, 0x39, (byte) 0xF3, 0x69, (byte) 0xE9, 0xD,
(byte) 0xB3, 0x3A, (byte) 0xA7, 0x3B, 0x44, 0x2B, (byte) 0xBB,
(byte) 0xB6, (byte) 0xB0, (byte) 0xB9 };
long start = System.currentTimeMillis();
// create paths
backupPath = Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/WhatsApp/Databases/msgstore.db.crypt5";
outputPath = Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/WhatsApp/Databases/msgstore.db.decrypt";
File backup = new File(backupPath);
// check if file exists / is accessible
if (!backup.isFile()) {
Log.e(TAG, "Backup file not found! Path: " + backupPath);
return;
}
// acquire account name
AccountManager manager = AccountManager.get(this);
Account[] accounts = manager.getAccountsByType("com.google");
if (accounts.length == 0) {
Log.e(TAG, "Unable to fetch account!");
return;
}
String account = accounts[0].name;
try {
// calculate md5 hash over account name
MessageDigest message = MessageDigest.getInstance("MD5");
message.update(account.getBytes());
byte[] md5 = message.digest();
// generate key for decryption
for (int i = 0; i < 24; i++)
key[i] ^= md5[i & 0xF];
// read encrypted byte stream
byte[] data = new byte[(int) backup.length()];
DataInputStream reader = new DataInputStream(new FileInputStream(
backup));
reader.readFully(data);
reader.close();
// create output writer
File output = new File(outputPath);
DataOutputStream writer = new DataOutputStream(
new FileOutputStream(output));
// decrypt file
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
SecretKeySpec secret = new SecretKeySpec(key, "AES");
IvParameterSpec vector = new IvParameterSpec(iv);
cipher.init(Cipher.DECRYPT_MODE, secret, vector);
writer.write(cipher.update(data));
writer.write(cipher.doFinal());
writer.close();
} catch (NoSuchAlgorithmException e) {
Log.e(TAG, "Could not acquire hash algorithm!", e);
return;
} catch (IOException e) {
Log.e(TAG, "Error accessing file!", e);
return;
} catch (Exception e) {
Log.e(TAG, "Something went wrong during the encryption!", e);
return;
}
long end = System.currentTimeMillis();
Log.i(TAG, "Success! It took " + (end - start) + "ms");
答案 2 :(得分：0)
我在这里找到了这段代码code 它需要msgstore.db.crypt5并生成msgstore.db，然后您可以使用任何sqLite bowser打开该文件。
package whatsapp;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.util.Arrays;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class WhatsAppDecrypt5 {
private static final byte[] INITIALIZATION_VECTOR = hexStringToByteArray("1e39f369e90db33aa73b442bbbb6b0b9");
private static final byte[] ENCRYPTION_KEY = hexStringToByteArray("8d4b155cc9ff81e5cbf6fa7819366a3ec621a656416cd793");
public static void main(String[] args) throws Exception {
if (args.length != 3) {
System.out.println("usage <inputfile> <outputfile> <email>");
// System.exit(0);
}
decrypt(new File("/Users/ovazquez/Downloads/msgstore.db.crypt5"), new File("/Users/ovazquez/Downloads/msgstore.db"), "theasociatedemail@gmail.com");
System.out.println("finalizado");
}
private static void decrypt(File inputFile, File outputFile, String email)
throws Exception {
String emailMD5 = md5(email);
byte[] emailMD5Bytes = hexStringToByteArray(emailMD5 + emailMD5);
byte[] decryptionKey = Arrays.copyOf(ENCRYPTION_KEY, 24);
for (int i = 0; i < 24; i++) {
decryptionKey[i] ^= emailMD5Bytes[i & 0xF];
}
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding", "SunJCE");
cipher.init(Cipher.DECRYPT_MODE,new SecretKeySpec(decryptionKey, "AES"), new IvParameterSpec(INITIALIZATION_VECTOR));
CipherInputStream cIn = new CipherInputStream(new FileInputStream(inputFile), cipher);
FileOutputStream fOut = new FileOutputStream(outputFile);
byte[] buffer = new byte[8192];
int n;
while ((n = cIn.read(buffer)) != -1) {
fOut.write(buffer, 0, n);
}
cIn.close();
fOut.close();
}
private static byte[] hexStringToByteArray(String s) {
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character
.digit(s.charAt(i + 1), 16));
}
return data;
}
private static String md5(String md5) throws Exception {
MessageDigest m = MessageDigest.getInstance("MD5");
m.reset();
m.update(md5.getBytes());
byte[] digest = m.digest();
BigInteger bigInt = new BigInteger(1, digest);
return bigInt.toString(16);
}
}