Thread: Encryption Cracking Contest

  1. #31
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    Be patient.. I am sure he will disclose today or tommorow.. May be after he teaches you all.. I will post my next encryption program.. Which is much more complex...

  2. #32
    I'm Back
    Join Date
    Dec 2001
    Posts
    556
    >>May be after he teaches you all..

    hey, theres nothing to teach, you'll be surprized at the way i got it

    it was luck and some simple deductions that got it

    i'm hoping that uraldor does the 'reverse engineering' stuff he says. thats one useful way to do it.
    -

  3. #33
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    Dosent matter how you did it.. But you did it... So however easy it may be.. I think you should explain it here... I myself is intersted on how you did it.. I also deviced many ways.. but none of them were really sucessfully.. May be after you explain each of us can post on how we tried doing it.....

    Buy pal.... You did it.....

  4. #34
    www.entropysink.com
    Join Date
    Feb 2002
    Posts
    603
    Oh wow, that's killed the afternoon!!!!!!


    PM'd to you!!
    Visit entropysink.com - It's what your PC is made for!

  5. #35
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    Robr You are correct..... That is the right key..... I think we will wait for one more guy to finisht it.. After that Both of you guys can explain how you did it..

    I am really exited to know how you guys did it.....

  6. #36
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    So far


    ihsir and
    robr


    have cracked the encryption sucessfully....

  7. #37
    www.entropysink.com
    Join Date
    Feb 2002
    Posts
    603
    I used the BFI method......
    Visit entropysink.com - It's what your PC is made for!

  8. #38
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    Great pal,
    Explain it in laymans language so that everyone can understand it..... I think i have a lot to learn from you guys...

    Both you and ihsir can discuss on how to present it...

    Waiting for the post form you gys....

  9. #39
    www.entropysink.com
    Join Date
    Feb 2002
    Posts
    603
    Brute Force & Ignorance
    Visit entropysink.com - It's what your PC is made for!

  10. #40
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    Hmm i dont thnk so.. brute force wouldnt work since for every key a sentence will be generated.. Please exolain it.. So that every one can know how you guys did it....


    OK I AM REVEALING IT THE KEY OF THE ENCRYPTION WAS "POWER" without quotes....

  11. #41
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    Untill these guys reveal how they did it.. I wanna ask you for you suggestion

    How do you think my next encryption program should be...

    1) Accept inputs from the user through the console window and display it there... Same for decrypting

    2) Accept messages from a user but save the encrypted message as a file . And while decrypting open the file

    3) Accept the input from the file and save the encrypted text into a file.. And decrypt from a file....

    4) Any other...

    Please recomend.. Which do you think is the easiest.... to operate..

    My next encryption program will be based on the XOR algorithm i think.. lets see.. Waiting for your sugestions and the details on how those two managed to crack the previous encryption...

  12. #42
    www.entropysink.com
    Join Date
    Feb 2002
    Posts
    603
    Vasanth,

    If I can put how I did it into words(?) I will. I'm a little busy now, but I'll try to do it tonight.

    As for encryption, when I did something similar I implemented it as a DLL, so you could create encryption objects useable from other C progs. You set a "key" property, sent it some text, and it returned the encrypted / decrypted data.

    Found that pretty useful, as I could then use it in several proggys.

    Would be really useful as a .lib I guess.
    Visit entropysink.com - It's what your PC is made for!

  13. #43
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    Thanx robr.. hope to see it here soon..... Ok i think i will follow what you said.. but what do you think it the best way to input and output the encryption.. Through files.. Or just typing it...

    Thanx

  14. #44
    www.entropysink.com
    Join Date
    Feb 2002
    Posts
    603
    I guess it depends *what* you want to encrypt. I had mine set up as a test form, where you pasted some text, and then you could watch the encryption / decryption happen "real time" like a teletype. I'd post a copy here, but it was Vi*Łal Bas*c!!!!!!!
    Visit entropysink.com - It's what your PC is made for!

  15. #45
    Its not rocket science vasanth's Avatar
    Join Date
    Jan 2002
    Posts
    1,683
    thanx anyway

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Encryption Contest
    By JoshR in forum Contests Board
    Replies: 46
    Last Post: 08-23-2005, 12:17 PM
  2. Expression Evaluator Contest
    By Stack Overflow in forum Contests Board
    Replies: 20
    Last Post: 03-29-2005, 10:34 AM
  3. WANTED: Contest Master
    By kermi3 in forum A Brief History of Cprogramming.com
    Replies: 15
    Last Post: 01-23-2003, 10:15 PM
  4. Results for the Encryption Contest -- June 23, 2002
    By ygfperson in forum A Brief History of Cprogramming.com
    Replies: 18
    Last Post: 07-07-2002, 08:04 AM