求帮写注册机
本帖最后由 ArmedImmediatel 于 2025-1-24 15:56 编辑今天看到一个有秘钥验证的apk 本来想着练练手写个注册机 结果绕着绕着绕晕了 有哪位大佬能看懂
反编译伪java代码：
package formatFa.comic;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
public class FAppProtect extends Activity {
EditText edit;
Button enter;
int id = -1;
int key = 520;
String temp;
TextView tv;
public FAppProtect() {
}
public static String byte2hex(byte[] bArr) {
byte[] bArr2 = bArr;
String str = "";
String str2 = "";
for (byte b : bArr2) {//依次抽出bArr2数组每个项遍历
str2 = Integer.toHexString(b & 255);
StringBuffer stringBuffer;
StringBuffer stringBuffer2;
if (str2.length() == 1) {
stringBuffer = r8;
stringBuffer2 = new StringBuffer();
stringBuffer2 = r8;
StringBuffer stringBuffer3 = new StringBuffer();
str = stringBuffer.append(stringBuffer2.append(str).append("0").toString()).append(str2).toString();
} else {
stringBuffer = r8;
stringBuffer2 = new StringBuffer();
str = stringBuffer.append(str).append(str2).toString();
}
}
return str.toUpperCase();
}
public static String de(String str) {
String str2 = str;
if (str2 == null) {
return (String) null;
}
String str3 = "vice587@.613฿@95";
if (str3 == null) {
try {
return (String) null;
} catch (Exception e) {
System.out.println(e.toString());
return (String) null;
}
} else if (str3.length() != 16) {
return (String) null;
} else {
SecretKeySpec secretKeySpec = r13;
SecretKeySpec secretKeySpec2 = new SecretKeySpec(str3.getBytes("ASCII"), "AES");
SecretKeySpec secretKeySpec3 = secretKeySpec;
Cipher instance = Cipher.getInstance("AES");
instance.init(2, secretKeySpec3);
try {
String str4 = r13;
String str5 = new String(instance.doFinal(hex2byte(str2)));
return str4;
} catch (Exception e2) {
System.out.println(e2.toString());
return (String) null;
}
}
}
public static String en(String str) throws Exception {
String str2 = str;
String str3 = "vice587@.613฿@95";
if (str3 == null) {
return (String) null;
}
if (str3.length() != 16) {
return (String) null;
}
SecretKeySpec secretKeySpec = r11;
SecretKeySpec secretKeySpec2 = new SecretKeySpec(str3.getBytes("ASCII"), "AES");
SecretKeySpec secretKeySpec3 = secretKeySpec;
Cipher instance = Cipher.getInstance("AES");
instance.init(1, secretKeySpec3);
return byte2hex(instance.doFinal(str2.getBytes())).toLowerCase();
}
public static String formatDuring(long j) {
long j2 = j;
long j3 = j2 / ((long) 86400000);
long j4 = (j2 % ((long) 86400000)) / ((long) 3600000);
long j5 = (j2 % ((long) 3600000)) / ((long) 60000);
long j6 = (j2 % ((long) 60000)) / ((long) 1000);
StringBuffer stringBuffer = r20;
StringBuffer stringBuffer2 = new StringBuffer();
stringBuffer2 = r20;
StringBuffer stringBuffer3 = new StringBuffer();
stringBuffer3 = r20;
StringBuffer stringBuffer4 = new StringBuffer();
stringBuffer4 = r20;
StringBuffer stringBuffer5 = new StringBuffer();
stringBuffer5 = r20;
StringBuffer stringBuffer6 = new StringBuffer();
stringBuffer6 = r20;
StringBuffer stringBuffer7 = new StringBuffer();
stringBuffer7 = r20;
StringBuffer stringBuffer8 = new StringBuffer();
return stringBuffer.append(stringBuffer2.append(stringBuffer3.append(stringBuffer4.append(stringBuffer5.append(stringBuffer6.append(stringBuffer7.append(j3).append(" 天 ").toString()).append(j4).toString()).append(" 小时 ").toString()).append(j5).toString()).append(" 分钟 ").toString()).append(j6).toString()).append(" 秒 ").toString();
}
public static byte[] hex2byte(String str) {
String str2 = str;
if (str2 == null) {
return (byte[]) null;
}
int length = str2.length();
if (length % 2 == 1) {
return (byte[]) null;
}
byte[] bArr = new byte[(length / 2)];
for (int i = 0; i != length / 2; i++) {
bArr = (byte) Integer.parseInt(str2.substring(i * 2, (i * 2) + 2), 16);
}
return bArr;
}
void dia(String str, OnClickListener onClickListener) {
String str2 = str;
OnClickListener onClickListener2 = onClickListener;
Builder builder = r8;
Builder builder2 = new Builder(this);
Builder builder3 = builder;
builder = builder3.setTitle("*_*");
builder = builder3.setMessage(str2);
builder = builder3.setPositiveButton("确定", onClickListener2);
AlertDialog show = builder3.show();
}
void enter() {
Intent intent = r5;
Intent intent2 = intent2;
try {
intent2 = new Intent(this, Class.forName("com.iapp.app.run.load"));
startActivity(intent);
finish();
} catch (Throwable e) {
Throwable th = e;
NoClassDefFoundError noClassDefFoundError = r11;
NoClassDefFoundError noClassDefFoundError2 = new NoClassDefFoundError(th.getMessage());
throw noClassDefFoundError;
}
}
@Override
public void onCreate(Bundle bundle) {
Exception exception;
NumberFormatException numberFormatException;
this.key = 123456789;
super.onCreate(bundle);
SharedPreferences defaultSharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
boolean z = defaultSharedPreferences.getBoolean("q1737611219077", false);
if (defaultSharedPreferences.getBoolean("q1737611220076", false)) {
enter();
return;
}
boolean commit;
this.temp = defaultSharedPreferences.getString("sss", "");
Date date = r24;
Date date2 = new Date();
Date date3 = date;
long j = (long) -1;
long j2 = (long) -1;
try {
j = Long.parseLong(de(this.temp));
} catch (Exception e) {
exception = e;
} catch (NumberFormatException e2) {
numberFormatException = e2;
}
if (z) {
this.temp = defaultSharedPreferences.getString("ttt", "");
try {
j2 = Long.parseLong(de(this.temp));
} catch (Exception e3) {
exception = e3;
} catch (NumberFormatException e22) {
numberFormatException = e22;
}
if (date3.getTime() - j > j2) {
dia("已过期!", (OnClickListener) null);
commit = defaultSharedPreferences.edit().putBoolean("q1737611219077", false).commit();
commit = defaultSharedPreferences.edit().putString("sss", "").commit();
commit = defaultSharedPreferences.edit().putString("ttt", "").commit();
} else {
enter();
return;
}
}
this.id = defaultSharedPreferences.getInt("id", -1);
if (this.id == -1) {
this.id = (int) ((Math.random() * ((double) 1000000000)) % ((double) 100000));
commit = defaultSharedPreferences.edit().putInt("id", this.id).commit();
}
View view = r24;
View linearLayout = new LinearLayout(this);
View view2 = view;
view2.setOrientation(1);
InputStream inputStream = (InputStream) null;
try {
inputStream = getAssets().open("background.jpg");
} catch (IOException e4) {
IOException iOException = e4;
}
if (inputStream != null) {
view2.setBackgroundDrawable(Drawable.createFromStream(inputStream, ""));
}
TextView textView = r24;
TextView textView2 = new TextView(this);
this.tv = textView;
this.tv.setTextSize((float) 20);
this.tv.setText("1\n2\n3\n4\n5format\n6\n7\n8\n9\n");
TextView textView3 = this.tv;
StringBuffer stringBuffer = r24;
StringBuffer stringBuffer2 = new StringBuffer();
textView3.append(stringBuffer.append("你的ID:").append(this.id).toString());
view2.addView(this.tv);
EditText editText = r24;
EditText editText2 = new EditText(this);
this.edit = editText;
view2.addView(this.edit);
view = r24;
linearLayout = new Button(this);
View view3 = view;
view3.setText("复制ID");
view = view3;
View.OnClickListener onClickListener = r24;
100000000 100000000 = new 100000000(this);
view.setOnClickListener(onClickListener);
view2.addView(view3);
Button button = r24;
Button button2 = new Button(this);
this.enter = button;
this.enter.setText("进入");
view2.addView(this.enter);
Button button3 = this.enter;
onClickListener = r24;
100000002 100000002 = new 100000002(this, defaultSharedPreferences, date3);
button3.setOnClickListener(onClickListener);
button3 = r24;
button = new Button(this);
button3 = button3;
setContentView(view2);
}
}
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