Tkbctf4


tkbctf4 logo

About

Starts at Ends at
1st half 2014-11-02 03:00 (UTC) 2014-11-02 15:00 (UTC) 12 hours
2nd half 2014-11-03 01:00 (UTC) 2014-11-03 10:00 (UTC) 9 hours

Total: 21 hours

Online Jeopardy style CTF

71 teams, 154 players registered.

On-site match

On-site match is planned to be held simultaneously with the 2nd half of the online match, but it is cancelled due to lack of participants.

Place

Classroom 1C406 (4th floor, Bldg. C in 1st Area, Tsukuba Campus, University of Tsukuba)

Address: 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan

Interval

During the interval (2014-11-02 15:00 (UTC) - 2014-11-03 01:00 (UTC)), all the servers except for the score server will be shut down. The score server won’t be shut down, but you can’t submit any flags.

Organizers

  • Christopher H Smith (@x86_64)
  • Hidekazu Kobayashi (@KOBA789)
  • Mei Akizuru (@maytheplic)
  • op (@6f70)
  • Yoshimura Yuu (@_yyu_)
  • Yuta KUWAHARA (@yuscarlet)
  • Yutaka WATANABE (@ytn86)
  • Yuto Maeda (@xrekkusu)

Challenges Archive

We have the official repository on github. Some challenges’ binary or source code is available here.

Score Server Application

mayth/parasol (see tkbctf4 tag)

For participants: If you have any ideas to improve the score server, please create an issue or contact the author (@maytheplic). Pull-reqs are also welcome, of course :-)

Result

Rank Name Point
1st 0x0 2541
2nd MMA 1987
3rd dcua 1870
4th superflip 1655
5th HackingForSushi 1461
6th nonbei 1200
7th tuat_mcc 1200
8th 竹田氏 1113
9th encrypti0x0n 806
10th CureSecure 800
11th CTF-infinit 700
12th mage 635
13th omakase 626
14th CAFEBABE 615
15th m1z0r3 600
16th Dystopian Narwhals 600
17th IPFactory 600
18th votch 600
19th a-team 400
20th 日曜日はだるいよ 400
21st Labo1yMaster 400
22nd Bono 400
23rd ゆゆ式 400
24th HZBL 300
25th ULIX 300
26th matsuyaNow 200
27th suteyako3 200
28th G01den L10n 200
29th scryptos 200
30th hime14 200
31st wasamusume 100
32nd FlagHyena 100
33rd admin 100
34th bz23 100
35th candies 100
36th CrSc 0
37th Test Team 0
38th ASIS 0
39th okudo3 0
40th unreadable 0
41st Y3RpY3Rm 0
42nd TastyShit 0
43rd pyutic 0
44th yamagi 0
45th UTWhiteHat 0
46th qqq 0
47th QQQ 0
48th spoon 0
49th ε-δ 0
50th SP6段 0
51st 3wh5 0
52nd OneManRescue 0
53rd root 0
54th tessy 0
55th senz 0
56th triplex 0
57th sata 0
58th omoikane 0
59th elliptic-curve 0
60th kujira14 0
61st 繧繝 0
62nd JOHN 0
63rd r00tz 0
64th CallOfTheCutie 0
65th kra 0
66th 010Caterpie 0
67th daruma 0
68th fukudai 0
69th aaaa 0
70th Tuliper 0
71st aozisosan 0