mobile 5ecurity

Belajar Jaringan pada Java

2010-11-30T21:52:00.000-08:00

saya sedang belajar jaringan pada java, pada Jaringan java ada yang akan menjadi server, dan ada yang akan menjadi client. ini source code untuk server : package server; import java.net.*; import java.io.*; public class servertyang { public static void main(String [] args) { ServerSocket server = null; Socket client; try { server = new ServerSocket(31);

menyembunyikan Pesan dalam file

2010-11-30T00:34:00.000-08:00

Apakah kamu pernah terpikirkan bahwa sebuah gambar JPG dapat digunakan untuk menyembunyikan pesan rahasia untuk dikirimkan? Jawabannya tentu saja ada. caranya dapat menggunakan STEGANOGRAFI. Steganografi adalah seni dan ilmu menulis pesan tersembunyi atau menyembunyikan pesan dengan suatu cara sehingga selain si pengirim dan si penerima, tidak ada seorangpun yang mengetahui atau

Amankan file dalam hosting

2010-07-11T01:40:00.001-07:00

Saat saya pertama kali menggunakan jasa file hosting untuk menyimpan file-file saya,saya tidak menyadari betapa pentingnya file index.html atau index.php saat it dengan bodohnya saya menghapus file tersebut. Kemudian beberapa waktu kemudian,saya membuka domain saya tempat hosting itu, dan ternyata yang ditampilkan oleh browser adalah isi semua folder saya. Celaka,kalo ada yang buka,isinya

Secret Message on FaceBook

2010-06-14T00:51:00.000-07:00

An Secret information should be sent in fast, no one could be read it, and hide in public service. Nowadays, most people using facebook, very simply to sent a message in facebook, but everyone can read the message. Some times, we must have a privacy to transmite our message to our friends. Now, I will share how to sent a secret message with facebook wall post safely. As we know, every file could

How to Inserting message in PNG file

2010-06-14T00:50:00.000-07:00

Select the PNG file will you use ( use a familliar picture) example : Create a TXT file which include your messase(save in same directory with your PNG file) Open the directory of your PNG file and TXT file with DOS Promt I save my file in D:>hack/ open D:>hack/ in dos write : type your_txt_file.txt >> your_png_file.png : enter my file is dunia.txt and gambar.png try to open your PNG file

Create a secret message

2010-06-14T00:48:00.000-07:00

If we insert an plain text to PNG file, everyone who open the sourch of our PNG file can read our message. because our message unencrypt. Safely, if we encrypt our message before we inserting our message to PNG file. Plain Message => Encrypt => Chiper Message + PNG file = PNG file(with encrypt message) For encryption we can you every encryption algorithm. you can use caesar algorthm for example

Vigener Subtitution

2010-05-28T04:34:00.000-07:00

Vigener is an Algorithm of plain encryption with caesar columnar subtitution.so,every plain in colum encrypt with caesar Algortm by an different key.Key : A T T A C KPlain : M I S S I OChiper: M B L S K YPlain : N C A N C EChiper: N V T N E OPlain : L E DChiper: L X WSo from the plain mission canceled encrypt with key ATTACK we can get the chiper text : MBLSK YNVTN EOLXWwe can make the php

Caesar Algorithm

2010-05-28T02:19:00.000-07:00

Caesar is an Algorithm which create by Yulius Caesar for encrypt his message text withChiper = Plain + 3 ;Modern Caesar is not only plain + 3, but the key can be the other of modulus 26 or can use the mix alphabtic for encryption.we can make a php program of caesar :1. make the input page.2. make the algorithm of caesar.3. Testing the program.Text(with point '.') : Key(a number) :

SMS security - TA-SMS

2010-03-28T03:43:00.000-07:00

Encrypt your messageswhen we send an sms to someone, such as our partner, sometimes we do not want others to know its contents. if we only use the applications of mobile sms sender of the original so anyone would be very easy to read that sms. especially if the content is seduction sms or important things, how busy we are when we send an sms that we receive or read others.I had enough facilities

Hidden Files - minicommander

2010-03-21T03:32:00.000-07:00

sometimes we have the files (pictures, music, videos etc.) that sometimes we do not want others to see / know. If we want to hide it, the theory is only change the properties file / folder to be 'hidden'.For the mobile phone of course not as easy as 'right click' select 'properties' such as in the computer.Need an additional application to change the file properties to hidden.Please download