Results 1 to 2 of 2

Math Help - 3-stage Feistel Cipher

  1. #1
    Member
    Joined
    Apr 2008
    Posts
    204

    3-stage Feistel Cipher

    initial key K_1 = (124)(3)
    firstly, i need help with finding out K_2 and K_3
    then once i have those keys, i need to work out an 8-bit plaintext from the ciphertext 10011110
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Jan 2009
    Posts
    591
    Quote Originally Posted by wik_chick88 View Post
    initial key K_1 = (124)(3)
    firstly, i need help with finding out K_2 and K_3
    then once i have those keys, i need to work out an 8-bit plaintext from the ciphertext 10011110
    That is the shortest cipher text I've seen.

    Since the Feistel algorithm is for both encryption and decryption, you have the end result. Plug that back into the  K_1 round and proceed.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Two Stage Least Squares
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: September 3rd 2011, 07:52 PM
  2. Probability - two stage experiment
    Posted in the Statistics Forum
    Replies: 2
    Last Post: October 15th 2010, 11:25 AM
  3. Replies: 1
    Last Post: March 4th 2010, 12:30 PM
  4. How do you get from one stage to the other.
    Posted in the Algebra Forum
    Replies: 1
    Last Post: December 18th 2008, 12:42 PM
  5. help/confirmation on multi-stage question
    Posted in the Statistics Forum
    Replies: 5
    Last Post: October 16th 2008, 07:11 AM

Search Tags


/mathhelpforum @mathhelpforum