Markoff

briskly — Sun, 02 Feb 2014 08:30:27 +0000

Category:

Event:

The name of this task connected to "Markov chain"

The main idea of that system is that the next state depends only on the current state, and there is a probability of transition.

First try shows, that one word phrases are shutting down the connection.

So we need to start with two word phrase. First hint is in the password:"talk_with_markov_about_positive_things".

send >> positive spam
recv << positive spam
send >> positive spam
recv << positive hack

As you can see server sometimes changes last word, and this is the main idea

We just need to write a script that will send the same string “n” times and look how last word will be changed. After scipt should send new phrase with changed last word and appended "spam" word. Result of this script is a long chain of words:

positive hack days ha_ha_not_that_easy maybe_technopandas_can_help phd technopandas techno_pandas sorry_wrong_turn techno pandas talk_with_markov_about_hacker

After some words, you can get a chain of words: "talk_with_markov_about_hacker" is a hint, to start a new chain with word "hacker" and this is the answer chain:

hacker quas wex exort yep_those_three_weird_words_are_the_flag

To take egg, you need to start chain with word "easter":

easter easter_egg dc245aad88104604acb82e566fde8ef6

Buy Sneakers | Sneakers Nike Shoes

BalalaikaCr3w - trivia

Markoff