archives tech: Cryptograph

Showing posts with label Cryptograph. Show all posts

Showing posts with label Cryptograph. Show all posts

How to use the Axcrypt for encryption?

Posted by Alfiya Rebana Saturday, April 9, 2011

In my last i gave you details about Axcrypt. In this post i am going to guide you how to encrypt the file using Axcrypt software.

Download the Axcrypt from here:

http://space.dl.sourceforge.net/project/axcrypt/AxCrypt/1.6.4.4/AxCrypt-Setup.exe

If the above link is not working then try this:

http://downloads.sourceforge.net/axcrypt/AxCrypt-Setup.exe?Download

Install the Axcrypt.

After Installation:
Encryption:
Right click on the file or folder which you want to lock.
Select Axcrypt option.
Then select Encrypt.

Now enter the Password or Key whatever you call.
Click ok.

Now you can see the icon is changed for the file or folder.
In order to open or modify you need to enter the password.

Decryption:
Right click on the encrypted file or folder
Select Axcrypt option
Then Select Decrypt.
Now Enter the Password to decrypt(password,which you gave while doing encryption).
That's all.

Screen Shot Tutorial For Reference:
This is un experienced users of windows. Here i will give the screen shot how to do it.
For Encryption:

For Decryption:

Cracking MD5 Hash algorithm-List of websites 2

Posted by Alfiya Rebana Thursday, April 7, 2011

I have listed some website in previous posts. some of other sites listed here. List of Websites to crack the MD5 Hash Algorithm

www.tmto.org
md5.noisette.ch
md5decryption.com
www.c0llision.net
www.netmd5crack.com
www.md5decrypter.com
md5hashcracker.appspot.com
www.hashhack.com
isc.sans.edu
www.md5crack.com
passcracking.com
authsecu.com
md5.rednoize.com
md5.web-max.ca
www.cmd5.com
md5.thekaine.de
www.shell-storm.org
www.md5this.com
www.hashchecker.com
hashcrack.com
md5pass.com
md5pass.info

A List of Message Digest(MD5) Cracking websites

Posted by Alfiya Rebana

http://www.md5lookup.com/
http://md5.rednoize.com
http://nz.md5.crysm.net
http://us.md5.crysm.net
http://md5crack.com/crackmd5.php

http://www.xmd5.org
http://gdataonline.com
http://www.hashchecker.com
http://passcracking.ru
http://www.milw0rm.com/md5
http://plain-text.info
http://www.securitystats.com/tools/hashcrack.php
http://www.schwett.com/md5/
http://passcrack.spb.ru/ ->sha1
http://shm.pl/md5/
http://www.und0it.com/
http://www.neeao.com/md5/
http://md5.benramsey.com/
http://www.md5decrypt.com/
http://md5.khrone.pl/
http://www.csthis.com/md5/index.php
http://www.securitystats.com/tools/hashcrack.php ->sha1
http://www.md5decrypter.com/
http://www.md5encryption.com/ ->sha1
http://www.md5database.net/
http://md5.xpzone.de/
http://www.milw0rm.com/md5/info.php
http://md5.geeks.li/
http://www.hashreverse.com/ ->sha1
http://www.cmd5.com/english.aspx
http://www.md5.altervista.org/
http://md5.overclock.ch/biz/index.php?p=md5crack&l=en
http://alimamed.pp.ru/md5/
http://md5crack.it-helpnet.de/index.php?op=add
http://cijfer.hua.fi/
http://shm.hard-core.pl/md5/
http://www.mmkey.com/md5/HOME.ASP
http://www.thepanicroom.org/index.php?view=cracker
http://rainbowtables.net/services/results.php ->sha1
http://rainbowcrack.com/ ->sha1
http://www.securitydb.org/cracker/
http://passwordsecuritycenter.com/in…roducts_ id=7
http://0ptix.co.nr/md5
https://www.astalavista.net/?cmd=rainbowtables
http://ice.breaker.free.fr/
http://www.md5this.com
http://www.shalookup.com/ ->sha1

lm Only:
http://sys9five.ath.cx:8080/hak5rtables/
http://lasecwww.epfl.ch/~oechslin/projects/ophcrack/

some more links

http://linardy.com/md5.php
http://www.gdataonline.com/seekhash.php
http://www.md5-db.com/
https://www.w4ck1ng.com/cracker/
http://search.cpan.org/~blwood/Digest-MD5-Reverse-1.3/
http://www.hashchecker.com/index.php?_sls=search_hash
http://www.milw0rm.com/md5/
http://www.mmkey.com/md5/
http://www.rainbowcrack-online.com/
http://www.securitydb.org/cracker/
http://www.securitystats.com/tools/hashcrack.php
http://schwett.com/md5/
http://www.und0it.com/
http://www.md5.org.cn/index_en.htm
http://www.xmd5.org/index_en.htm
http://www.tmto.org
http://md5.rednoize.com/
http://nz.md5.crysm.net/
http://us.md5.crysm.net/
http://gdataonline.com/seekhash.php
http://passcracking.ru/
http://shm.pl/md5/
http://www.neeao.com/md5/
http://md5.benramsey.com/
http://www.md5decrypt.com/
http://md5.khrone.pl/
http://www.csthis.com/md5/index.php
http://www.md5decrypter.com/
http://www.md5encryption.com/
http://www.md5database.net/
http://md5.xpzone.de/
http://www.hashreverse.com/
http://alimamed.pp.ru/md5/
http://md5crack.it-helpnet.de/index.php?op=add
http://shm.hard-core.pl/md5/
http://rainbowcrack.com/
http://passwordsecuritycenter.com/index.php?main_page=product_info&cPath=3&products_id=7
https://www.astalavista.net/?cmd=rainbowtables
http://ice.breaker.free.fr/
http://www.md5this.com/
http://hackerscity.free.fr/
http://md5.allfact.info/
http://bokehman.com/cracker/
http://www.tydal.nu/article/md5-crack/
http://passcracking.com/
http://ivdb.org/search/md5/
http://md5.netsons.org/
http://md5.c.la/
http://www.md5-db.com/index.php
http://md5.idiobase.de/
http://md5search.deerme.org/

http://sha1search.com/

Introduction to Cryptography

Posted by Alfiya Rebana

Now a days Internet is important part of Life. We are using Internet for sending confidential data also like password,for storing army secrets. But the Internet is insecure medium. Do you know why?

Insecure Medium:
Imagine you are sending a data. In internet world data are separated as packets and send to destination. Do you think the data directly reaching the destination?   If you think so,you are wrong. The packets are going through different routers. Finally the data is send to user. In this gap, Intruders(i mean attackers) takes advantages. Intruders can see what you are sending. Because your data are simple and easy to readable by anyone.

How to secure the data?
    We can not stop the intruders and their activities. But we can make our data as Unreadable for Intruders. For this purpose the Cryptography is introduced.

Introduction to Cryptography:
     Julius Ceaser who introduce the Cryptography technology. Cryptography is technology in which we are changing the plain text to unreadable text(known as cipher text) .

In your home you put money in locker, Isn't it? The locker probably has key to open. Imagine thief is coming to your home to steal. if he want to open the locker,certainly he need the key. Without the key he can not do. Yeah i can hear what you are saying, he can break the locker. If the locker is very strong,he can not open it at all.

Likewise in cryptography also we are going to create a Key for our data. So that Intruders can not read the data. It is possible to read the data, if the encryption(will explain later) is weak. So we need to encryption method very strong.

Terminologies used In cryptography:
   Plain Text:
               original data or text is known as Plain text.
   Cipher Text:
              The encrypted message(unreadable message).
   Encryption:
             Changing the Plain text to unreadable.
   Decryption:
            Changing the cipher text to plain text.

Traditional Encryption Methods:

Ceaser Cipher
Mono Alphabetic Cipher
Play Fair Cipher
Hill cipher
Poly Alphabetic Cipher
Rail Fence Technique.

Ceaser Cipher:
Most simplest encryption method. In this method we are going to replace the alphabets with shifted alphabets.
Eg:
Consider Plain text is: break
if we use Key is 3, then the cipher text will be found by:

b+3 r+3 e+3 a+3 k+3
Shifted to three alphabets final cipher text is:

euhdn

If the intruders see the cipher text(here "euhdn") ,he can not understand anything. But this method is easily hackable . Because intruders can try 25 shifts and finally he can get the result.

Many encryption methods are introduced to make better security.

Today Encryption methods:

AES(Advanced Entyption Standard)
DES(Data Encryption Standard)
RSA(Name of the creators).
MD5(Message Digest -5)
SHA(Secure Hash Algorithm

For secure transaction , SSL (Secure Socket Layer ) is introduced. In next post i'll give detailed explanation for the SSL layer.

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