Команда ТГУ SiBears, участвующая в соревнованиях по защите компьютерной информации Capture the Flag (CTF), объявляет о наборе участников! CTF — это командные соревнования, целью которых является оценка умения участников атаковать и защищать компьютерные системы. Наша команда имеет за плечами не мало громких успехов. Три победы во всероссийских межвузовских соревнованиях RuCTF (2009, 2010, 2011, г.Екатеринбург), одно 2-ое место (2012). 2-ое место в международных студенческих соревнованиях iCTF (2008, Санта-Барбара, США). 2-ое место в международных профессиональных соревнованиях HitbSecConf CTF (2012, Амстердам, Нидерланды). А также участие в главных профессиональных международных соревнованиях DEF CON CTF (2012, Лас-Вегас, США). Теперь нам нужен именно ты!

Laboratory in the woods
It's a bit strange inscription in the laboratory, isn't it?

Delivery
Name the person that will receive this package:

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In this task we were given a hostname and a port. The connection using netcat shows us a picture of a ship in ASCII art, two lines: “10x10x10” and “<x>:<y>:<z>\n”, and some lists of triples of length 4, 3, 2 and 1. This all is an obvious invitation to play a three-dimensional version of the Sea Battle game with a robot on the other side of the wire.

Strange shoplist
That sailor has a weird shoplist. I'd like to know what he's really gonna buy.

Strange song
Who is the author of this song? 

Mmhhh that's a strange way to display a number using a binary representation...
(Submit as upper case hex encoded numbers, with rightmost green led being the MSB. Without leading 0x)

The DEF CON 20 is over.

This year SiBears were honored to participate in the final CTF round. Unfortunately, only 3 guys solved "US Visa 500" task and came to Las Vegas, so we were the smallest team in the CTF area. The DEFCON CTF Finals was a classical attack-and-defense game with services and regularly updated flags. (yep, they did have a Blackjack:)

The only non-binary service was torqux.