ksnctf

コンピュータセキュリティに関する問題を出題します。 各問題からFLAG_123456xyzという形式の答え(flag)を探してください。 Twitterでログインすると、ランキングに参加できます。

ctfq.u1tramarine.blue 以外への攻撃はしないでください。

Attacks are only allowed to ctfq.u1tramarine.blue.

Problems

#TitlePointsWinner
1Test Problem1
2Easy Cipher50
3Crawling Chaos100
4Villager A300
5Onion70
6Login120
7Programming110
8Basic is secure?50
9Digest is secure!150
10#!20
11Riddle200
12Hypertext Preprocessor70
13Proverb70
14John60
15Jewel250
16Math I150
17Math II50
18USB flash drive80
19ZIP de kure150
20G0091330
21Perfect Cipher200
22Square Cipher60
23Villager B450
24Rights out100
25Reserved30
26Sherlock Holmes70
27Lives out150
28Lo-Tech Cipher60
29Double Blind50
30Alpha Mixed Cipher80
31KanGacha130
32Simple Auth50
33HTTPS is secure.180
34Are you human?220
35Simple Auth II20
36Are you ESPer?120
37Competitive Programming600
38Canned Can Opener80
39Unknown Plaintext Attack250
40Deep Flag Network100
41Private BBS80

Ranking

#NamePoints
1@1gy_nop5161
2@Bono_iPad5161
3@CelebLorn5161
4@june_yah_5161
5@Charo_IT5161
6@__suica_5160
7@yangsu10yen5081
8@ctf_shiho4981
9@y011d44911
10@moratorium084651
11@Ga_ryo_4651
12@10q2u4621
13@ri4zn4611
14@miracjp4481
15@st98_4341
16@kinmojr4331
17@_jptomoya4131
18@goto504131
19@xxx7010xxx4051
20@YM_researcher4051
21@shiitakealien4051
22@fwarashi4051
23@5572BEAM4051
24@yuyuyuyuyu_sec4051
25@_wata12214051
26@mizusearchdemon4051
27@__john_4051
28@Etsukata4051
29@zdroidan4051
30@sumi0x004051
31@encry10244051
32@cookies1464051
33@npc_guru4051
34@zeosutt4051
35@kimiyuki_u4051
36@satos___jp4051
37@ommadawn464051
38@y_hag4051
39@yutopp4051
40@_N4NU_4051
41@r_dream04051
42@RKX12094051
43@nekonyaso4051
44@hority4051
45@bata_244051
46@shinh4051
47@kikuchan984051
48@1gaya_arisa4050
49@todaemon4031
50@miau_jp3971
51@asai_ken3911
52@lailaiskyn3900
53@nishitsume3831
54@black_tr10073831
55@tuz3583831
56@R_Gray_3831
57@mosaku73831
58@tleya_cat3831
59@inaz23831
60@shironoo3831
61@feffffea3831
62@otameshi613831
63@waidotto3831
64@sfzc2w3831
65@xrekkusu3831
66@shift_crops3831
67@sassa_nn3831
68@mage_18683831
69@lynn_04203830
70@sekai673821
71@yosupot3791
72@hamano3761
73@komori_pyonpyon3751
74@lcst_topevx3751
75@s4ik13751
76@kotarou7777753751
77@00_3751
78@dskzip3751
79@aki335243751
80@MarshMallow_sh3751
81@_193s3751
82@horosora3711
83@int_0x103711
84@icchyr3711
85@ihijp3701
86@X154AA43691
87@gpp2563691
88@iwamura3691
89@nk0t3691
90@_naa_4f3681
91@checkmatemusipa3631
92@yasulib3631
93@hhc0null3631
94@laplaci_an3601
95@noritama_ususio3571
96@akiym3571
97@folll__3561
98@hk10123551
99@porisuteru3551
100@ytn863551
101@bbottait3550
102@you07083531
103@yizumi1012xxx3521
104@nullpo_head3511
105@6f70_tkb3511
106@siam_sec3481
107@kumavale3481
108@toyocurry3481
109@__math3461
110@nmkj_io3451
111@chenxiao073450
112@Tan909090903441
113@potetisensei3431
114@ta2048__3421
115@twhs_r3421
116@xyshiki3401
117@010Caterpie3391
118@xn16h73381
119@ysakasin3381
120@arata_nvm3381
121@yuscarlet3381
122@mitsububunu3381
123@inaki_honorific3381
124@graneed1113381
125@hiro_kojima3381
126@strasp093381
127@G0G0BIKE3381
128@fjn843381