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@FFo707773255160
7@yangsu10yen5081
8@ctf_shiho4981
9@y011d44911
10@moratorium084651
11@Ga_ryo_4651
12@10q2u4621
13@nr1az4611
14@miracjp4481
15@st98_4341
16@_jptomoya4131
17@goto504131
18@xxx7010xxx4051
19@YM_researcher4051
20@shiitakealien4051
21@fwarashi4051
22@5572BEAM4051
23@yuyuyuyuyu_sec4051
24@_wata12214051
25@mizusearchdemon4051
26@__john_4051
27@Etsukata4051
28@zdroidan4051
29@sumi0x004051
30@encry10244051
31@cookies1464051
32@npc_guru4051
33@zeosutt4051
34@kimiyuki_u4051
35@satos___jp4051
36@ommadawn464051
37@y_hag4051
38@yutopp4051
39@_N4NU_4051
40@r_dream04051
41@RKX12094051
42@nekonyaso4051
43@hority4051
44@bata_244051
45@shinh4051
46@kikuchan984051
47@1gaya_arisa4050
48@todaemon4031
49@miau_jp3971
50@asai_ken3911
51@lailaiskyn3900
52@nishitsume3831
53@black_tr10073831
54@tuz3583831
55@R_Gray_3831
56@mosaku73831
57@tleya_cat3831
58@inaz23831
59@shironoo3831
60@feffffea3831
61@otameshi613831
62@waidotto3831
63@sfzc2w3831
64@xrekkusu3831
65@shift_crops3831
66@sassa_nn3831
67@mage_18683831
68@lynn_04203830
69@sekai673821
70@yosupot3791
71@hamano3761
72@komori_pyonpyon3751
73@lcst_topevx3751
74@s4ik13751
75@kotarou7777753751
76@00_3751
77@dskzip3751
78@aki335243751
79@MarshMallow_sh3751
80@_193s3751
81@horosora3711
82@int_0x103711
83@icchyr3711
84@ihijp3701
85@X154AA43691
86@gpp2563691
87@iwamura3691
88@nk0t3691
89@_naa_4f3681
90@checkmatemusipa3631
91@yasulib3631
92@hhc0null3631
93@laplaci_an3601
94@noritama_ususio3571
95@akiym3571
96@folll__3561
97@hk10123551
98@porisuteru3551
99@ytn863551
100@bbottait3550
101@you07083531
102@yizumi1012xxx3521
103@nullpo_head3511
104@6f70_tkb3511
105@siam_sec3481
106@kumavale3481
107@toyocurry3481
108@__math3461
109@nmkj_io3451
110@chenxiao073450
111@Tan909090903441
112@potetisensei3431
113@ta2048__3421
114@twhs_r3421
115@xyshiki3401
116@010Caterpie3391
117@xn16h73381
118@ysakasin3381
119@arata_nvm3381
120@yuscarlet3381
121@mitsububunu3381
122@inaki_honorific3381
123@graneed1113381
124@hiro_kojima3381
125@strasp093381
126@G0G0BIKE3381
127@fjn843381
128@misodengaku3381