Fri, 30 July 2021, 16:00 UTC — Sat, 31 July 2021, 16:00 UTC 

On-line

Crypto CTF event.

Format: Jeopardy Jeopardy

Official URL: https://cr.yp.toc.tf/

This event's future weight is subject of public voting!

Future weight: 48.20 

Rating weight: 36.00 

Event organizers 

Crypto CTF is an online competition for hackers to test, evaluate, and expand their cryptography exploiting skills. In this CTF we will provide various crypto challenges regarding modern cryptography techniques.
All crypto lovers are most welcome!
CryptoCTF is a revenge for everlasting complaints by CTF participants about crypto challenges in CTF contests. In this brand-new tournament we are trying to provide the crypto lovers with fun and challenging pure crypto tasks to squeeze their heart and test their passion for cryptography.
Each task will be based on a particular cryptographic primitive, or it will include a direct application of cryptography in other fields.
The organizers of these tournaments generously offer their skills knowledge to design original Crypto tasks and challenges for similar contests.

Long Live Crypto :)

Prizes

TBA

Scoreboard

439 teams total

PlaceTeamCTF pointsRating points
1 Super Guesser 4380.00072.000
2 Sài Gòn ơi, cố lên! 3526.00046.981
3 CryptoHackers 3403.00039.970
4 GatorSheavesMutably 3403.00036.970
5 Kuruwa 3131.00032.934
6 Ariana 3049.00031.060
7 y011d4 2917.00029.118
8 Black Bauhinia 2892.00028.270
9 🚿🚿 2764.00026.718
10 Nu1L 2725.00025.997
11 namlleh 2655.00025.095
12 pwnthem0le 2563.00024.066
13 galhacktic trendsetters 2538.00023.630
14 isanapap 2312.00021.574
15 ./Vespiary 2166.00020.203
16 Timmy 2054.00019.132
17 Three_Musketeers 1902.00017.751
18 hxp 1816.00016.926
19 nyahello 1778.00016.508
20 simple 1698.00015.756
21 STT 1698.00015.670
22 bruh 1593.00014.730
23 kasiatutej 1560.00014.387
24 K3RN3L4RMY 1319.00012.341
25 w1relessslab 1292.00012.059
26 kalmarunionen 1292.00012.004
27 Tasteless 1164.00010.900
28 watevr 1164.00010.853
29 Made In MIM 1132.00010.545
30 goo 1128.00010.471
31 Red Cadets 1125.00010.408
32 B3bieSec 1016.0009.476
33 mode13h 1008.0009.376
34 Federation 991.0009.204
35 N30Z30N 951.0008.845
36 XDD 944.0008.759
37 mugi 938.0008.683
38 RiceGang 892.0008.279
39 Killua4564 869.0008.066
40 /bad 844.0007.837
41 MATE 822.0007.634
42 The Teamless 772.0007.202
43 Epic Leet Team 770.0007.166
44 NUSGreyhats 748.0006.966
45 the3000 732.0006.816
46 Wanna.One 714.0006.651
47 Silver Catalysts 685.0006.396
48 idek 679.0006.331
49 NUSHmallows 652.0006.094
50 SIGINT 651.0006.071
51 ivani 634.0005.917
52 m1z0r3 629.0005.862
53 DarkArmy 581.0005.455
54 Abnormally Directed Dimension 579.0005.426
55 otrada 570.0005.339
56 zer0pts 559.0005.237
57 technic 547.0005.127
58 Maple Bacon 543.0005.084
59 dodododo 536.0005.016
60 VLIM 523.0004.899
61 CSI 522.0004.881
62 mikoan 514.0004.805
63 Ph0t1n1a 511.0004.771
64 nag0m1 462.0004.360
65 r00tstici 462.0004.351
66 prequantumers 444.0004.195
67 poigiatre 438.0004.137
68 French Poetry 428.0004.047
69 tmw orz 410.0003.892
70 uiop 392.0003.736
71 C4T BuT S4D 392.0003.729
72 waterdrop 391.0003.714
73 TeamCC 390.0003.699
74 pwnthenope 378.0003.593
75 bi0s 377.0003.579
76 Wechall Warriors 377.0003.572
77 Merricx 367.0003.484
78 Recursion Fairies 358.0003.404
79 kad 351.0003.341
80 MagshimistsCanDoCrypto 343.0003.269
81 kenkenken2004 331.0003.165
82 Nula 329.0003.143
83 kiona 321.0003.072
84 TSG 321.0003.067
85 soulctf 307.0002.947
86 RPISEC 307.0002.942
87 Crypt0L4ds 307.0002.937
88 Forst 307.0002.932
89 STeam 306.0002.920
90 pcw109550 295.0002.825
91 Karpaty 288.0002.763
92 Abyssal Cruelty 280.0002.693
93 The Additional Payphones 253.0002.467
94 PwN3v3rY7h1nG 249.0002.430
95 Kaczuszki 249.0002.426
96 ByteForc3 249.0002.422
97 AAAA 236.0002.311
98 pobateam 236.0002.307
99 5upernova 236.0002.303
100 hx607087 216.0002.135
101 dakchi 195.0001.959
102 VN_MSEC 195.0001.956
103 Maurus 188.0001.895
104 OctaC0re 188.0001.891
105 AntiBuddies 187.0001.880
106 panzer 182.0001.836
107 Wani Hackase 179.0001.808
108 λ f.(λ x.f (x x)) (λ x.f (x x)) 178.0001.796
109 fssvs 165.0001.686
110 RedBetta 165.0001.683
111 KUDoS 138.0001.459
112 JKQuality 131.0001.398
113 Y-CTF 131.0001.395
114 To1in 131.0001.393
115 dickjustice228 131.0001.390
116 fiord 130.0001.379
117 风好衣轻 108.0001.195
118 VD 108.0001.193
119 g1v3m3chee53 108.0001.190
120 SPRAVEDLIVAЯ RUSH A 108.0001.188
121 noraneco 108.0001.185
122 te5t 108.0001.183
123 epistemologist 108.0001.180
124 nowunkie 108.0001.178
125 Geckoland 108.0001.176
126 Bono_iPad 108.0001.173
127 DDHC 104.0001.138
128 gov 98.0001.087
129 Expl0r3_Ev1d3nCe5 90.0001.019
130 Dai Gurren Dan 90.0001.017
131 Corax 67.0000.825
132 Acme Crypto Corporation 67.0000.823
133 For_sub67 67.0000.821
134 dubbalubba 67.0000.819
135 ISITDTU 67.0000.817
136 pejuang cinta 67.0000.815
137 TeamKrabath 67.0000.813
138 Sieberrsec 67.0000.812
139 sv 67.0000.810
140 blue0620 67.0000.808
141 Waffen SSL 67.0000.806
142 flag{}___Orz 60.0000.747
143 PwnProphecy 60.0000.745
144 upbhack 60.0000.743
145 teameins 60.0000.741
146 WeAreSo1337 60.0000.740
147 quriosity 60.0000.738
148 superusers 60.0000.736
149 Invisibl3 60.0000.735
150 izumo 60.0000.733
151 Tunisie 60.0000.732
152 antox 60.0000.730
153 Blue Hens 60.0000.728
154 xcanecs 60.0000.727
155 0xDoge 60.0000.725
156 dont_thread_on_me 60.0000.724
157 DevIsrael 60.0000.722
158 AWP? 60.0000.721
159 lil.thawg 60.0000.720
160 P00r 60.0000.718
161 1gy 60.0000.717
162 DMZ 60.0000.715
163 CCCC 60.0000.714
164 Skiddies 60.0000.713
165 NorthWest 60.0000.711
166 kkri 60.0000.710
167 LIGHT 60.0000.709
168 cls 60.0000.707
169 ctfretro 60.0000.706
170 InfoSecIITR 48.0000.606
171 nsucy 41.0000.548
172 bhs team sort of :D 19.0000.365
173 Yash 19.0000.364
174 doublepentest 19.0000.363
175 pemula 19.0000.362
176 ctfitb 19.0000.361
177 thehackerscrew 19.0000.360
178 Sentinel 19.0000.358
179 PooksandKaks 19.0000.357
180 Federal_Bonk_Investigations 19.0000.356
181 0x501st 19.0000.355
182 shiba gang 19.0000.354
183 OurHeung 19.0000.353
184 Team_Thinking 19.0000.352
185 RPCA Cyber Club 19.0000.351
186 comrad3 19.0000.350
187 Sinn3rB0y5 19.0000.349
188 PatagoniaHack 19.0000.348
189 StOn3_WaLl 19.0000.347
190 TeamTeamTeam1234 19.0000.346
191 N1ghth4wks 19.0000.345
192 Cyb3rGh0575 19.0000.344
193 Team Iktomi 19.0000.343
194 c@pric0rn 19.0000.342
195 Federal Bird Intelligence 19.0000.341
196 Ulm Security Sparrows 19.0000.340
197 M1dnytExplo17z 19.0000.339
198 Seed_Im_Pierre_Dim 19.0000.338
199 b0rn2Br00t 19.0000.337
200 dhdmdkd 19.0000.336
201 SparklingxCC 19.0000.335
202 sub0 19.0000.334
203 pwned 19.0000.334
204 Aryan 19.0000.333
205 stankc 19.0000.332
206 LuckyLeprechaunz 19.0000.331
207 ns4style 19.0000.330
208 4to3 19.0000.329
209 elitecoderz 19.0000.328
210 arampampam 19.0000.328
211 Arn4kiAspr0KaiPaxy 19.0000.327
212 P0ppy 19.0000.326
213 Evil bear 19.0000.325
214 it-sec.fail 19.0000.324
215 PoC 19.0000.324
216 New Team 19.0000.323
217 FantasqueX 19.0000.322
218 日本 19.0000.321
219 Splitting 19.0000.321
220 cryp_$ec 19.0000.320
221 KapiSec 19.0000.319
222 um 19.0000.318
223 ctfChallengers 19.0000.318
224 Shifty 19.0000.317
225 Shady's 19.0000.316
226 Sk1Ds 19.0000.315
227 EISCTUTN 19.0000.315
228 Dokko 19.0000.314
229 marsh 19.0000.313
230 SpicyPotatoes 19.0000.313
231 yah 19.0000.312
232 MExP 19.0000.311
233 JuliusCrypto 19.0000.311
234 CaptainGN 19.0000.310
235 United States 19.0000.309
236 54010N 19.0000.309
237 Jacobs 19.0000.308
238 :wq! 19.0000.307
239 Ashes 19.0000.307
240 NAYSA Space Force 19.0000.306
241 deez nuts123 19.0000.306
243 mathLQDKH1619 19.0000.304
244 Blupper 19.0000.304
245 ADY19 19.0000.303
246 dbuser 19.0000.303
247 Foderania 19.0000.302
248 patientTeam 19.0000.301
249 h4ckth3w0rld 19.0000.301
250 4141414141 19.0000.300
251 hooha 19.0000.300
252 whitehathacker8181 19.0000.299
253 shellpwn 19.0000.298
254 cj 19.0000.298
255 M@!0lica 19.0000.297
256 France 19.0000.297
257 Purple_CrypTiV3rse 19.0000.296
258 laduuu 19.0000.296
259 freex86 19.0000.295
260 GGaGGa 19.0000.295
261 Cut3 Guys 19.0000.294
262 easter egg 19.0000.294
263 Bat Squad 19.0000.293
264 Bfho 19.0000.293
265 BIT CRIMINALS 19.0000.292
266 Islanders 19.0000.292
267 inci 19.0000.291
268 OAmaw 19.0000.290
269 All Your Flags 19.0000.290
270 etc2020 19.0000.289
271 hackDZ 19.0000.289
272 No_Pwn_Intended 19.0000.289
273 pOwOned 19.0000.288
274 r00kie 19.0000.288
275 Para.dox 19.0000.287
276 Team-0x7 19.0000.287
277 R00TAMNES21 19.0000.286
278 Teno 19.0000.286
279 Rasser 19.0000.285
280 DU4L_S1M_PR08L3M 19.0000.285
281 Closers 19.0000.284
282 z13db 19.0000.284
283 n3rd_h3rd 19.0000.283
284 CultOfNull 19.0000.283
285 acdwas 19.0000.282
286 TU Delft CTF Team 19.0000.282
287 wonderland 19.0000.282
288 Darkside 19.0000.281
289 bet75 19.0000.281
290 Byte-Me 19.0000.280
291 N3PS3C 19.0000.280
292 SNAKEOIL 19.0000.279
293 NoCountryForOldMan 19.0000.279
294 NullPointerException 19.0000.279
295 gruf 19.0000.278
296 taln 19.0000.278
297 TheTeamaaaaaa 19.0000.277
298 N00BTeam 19.0000.277
299 Behemoth&Cody 19.0000.277
300 kwitnoncy 19.0000.276
301 xor and the half adder 19.0000.276
302 nicholash711 19.0000.275
303 CryptoL0vers 19.0000.275
304 Prime Squad 19.0000.275
306 Cipher.exe 19.0000.274
307 Dino Dongers 19.0000.273
308 IsolatingBeforeItWasCool 19.0000.273
309 hackcoeur 19.0000.273
310 crytech7 19.0000.272
311 Cyber Blob Force 19.0000.272
312 [ ] 19.0000.272
313 OnlyFeet 19.0000.271
314 Wuuu 19.0000.271
315 Bug_Eaters 19.0000.270
316 MZT 19.0000.270
317 p4snet0 19.0000.270
318 cyberbangla 19.0000.269
319 skjd1234 19.0000.269
320 COND1TION ONE 19.0000.269
321 Fweefwop 19.0000.268
322 Sierra Leone 19.0000.268
323 simurgh 19.0000.268
324 w 19.0000.267
325 f50c131y 19.0000.267
326 Birds 19.0000.267
327 Banditter i Habitter 19.0000.266
328 WhiteKnnife 19.0000.266
329 CTF Moment 19.0000.266
330 goldenCalcium 19.0000.265
331 honu 19.0000.265
332 thesolos 19.0000.265
333 displayname 19.0000.264
335 ri5e 19.0000.264
336 Gemooy 19.0000.263
337 0brell 19.0000.263
338 p a i n 19.0000.263
339 Er0x82or 19.0000.262
340 zzzz 19.0000.262
341 kgrzk 19.0000.262
342 ArchonCTF 19.0000.261
343 israel 19.0000.261
344 tea2432 19.0000.261
345 CarpeDien 19.0000.261
346 xSTF 19.0000.260
347 FF9 19.0000.260
348 r29er 19.0000.260
349 0a24 19.0000.259
350 ไทย 19.0000.259
351 hui_pentest 19.0000.259
352 4Eyes 19.0000.258
353 Lev9L 19.0000.258
354 obsession 19.0000.258
355 wackers 19.0000.258
356 StrixGoldhorn 19.0000.257
357 fuchen 19.0000.257
358 MHax3ers 19.0000.257
359 WYE 19.0000.256
360 zksnarks 19.0000.256
361 temptemp 19.0000.256
362 leonuz 19.0000.256
363 kaunghtetaung 19.0000.255
364 nepal 19.0000.255
365 ma 19.0000.255
366 笑拉了 19.0000.255
367 ru7ynk4 19.0000.254
368 4hem 19.0000.254
369 CSAX 19.0000.254
370 n3rdn3ck 19.0000.253
371 Vaada 19.0000.253
372 玛卡巴卡队 19.0000.253
373 A Shining Solo 19.0000.253
374 rawrxD 19.0000.252
375 Zig Hack Zag 19.0000.252
376 0x000f 19.0000.252
377 W018 19.0000.252
378 oneperson 19.0000.251
379 Fs0ciety00 19.0000.251
380 KID 19.0000.251
381 caxuyc 19.0000.251
382 d1no 19.0000.250
383 to^ 19.0000.250
385 TNCyberSec 19.0000.250
386 l0neW0lf 19.0000.249
387 vietnam 19.0000.249
388 Testings 19.0000.249
389 K33P_Qu!34 19.0000.249
390 HHJ 19.0000.248
391 Team H4C 19.0000.248
392 uranium235 19.0000.248
393 legendOfHell 19.0000.248
394 killswitch 19.0000.248
395 kt 19.0000.247
396 katachi 19.0000.247
397 FlagFiends 19.0000.247
398 spr1ng 19.0000.247
399 hololive 19.0000.246
400 0m3g4 19.0000.246
401 MirrorOS 19.0000.246
402 123admin 19.0000.246
403 aespa 19.0000.245
404 sbstm 19.0000.245
405 PJSP 19.0000.245
406 XinChao 19.0000.245
407 gomenic725 19.0000.245
408 moonctf 19.0000.244
409 Flag Fiends 19.0000.244
410 NO PWN NO FUN 19.0000.244
411 LeonT 19.0000.244
412 Cryptohack 19.0000.244
413 Medis 19.0000.243
414 BADSUD0'S 19.0000.243
415 抒情诗、 19.0000.243
416 GhostRecon 19.0000.243
417 Singapore 19.0000.242
418 ToE42 19.0000.242
419 Martial_Law_Enforcer 19.0000.242
420 meriem 19.0000.242
421 Tf 19.0000.242
422 Fu1lc0n- 19.0000.241
423 x_x 19.0000.241
424 rabbitsthecat 19.0000.241
425 TheMythologist 19.0000.241
426 cilantro 19.0000.241
427 thiennn.neji 19.0000.240
428 KoRec 19.0000.240
429 ondrca_team 19.0000.240
430 gum3ng 19.0000.240
431 somayi2021 19.0000.240
432 team-blek-mejik 19.0000.239
433 kepler 19.0000.239
434 HackITGuys 19.0000.239
435 JustACasualPlayer 19.0000.239
436 ronen8231 19.0000.239
437 J0hnny 19.0000.239
438 HL2FORASS 19.0000.238
439 th31nk 19.0000.119
440 helloWorld 19.0000.119
441 F-Cumb4cK 19.0000.119
442 (mendung)10^6 19.0000.119
443 PwnLeak 19.0000.119
ameer_boharaFeb. 23, 2021, 11:39 a.m.

I wanna join