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Challenge Category Author Solved Score
1. Broken Cert Revenge Cryptography Tulgaaaa 8 972
2. Fancy text Cryptography Superior 8 972
3. At the end Cryptography unknown 9 964
4. Clash of MD5 Cryptography Superior 9 964
5. Prime or not Prime Cryptography Superior 9 964
6. RandCrack Cryptography Superior 9 964
7. Shuffle Cryptography Khulegu 9 964
8. 16 bytes: 512-bit primes Cryptography Superior 10 955
9. Collision finder Cryptography Superior 10 955
10. Unknown seed Cryptography Superior 10 955
11. Encryption service 3 Cryptography Superior 14 909
12. Scambet Cryptography Superior 14 909
13. The First Half: Revolutions Cryptography Superior 15 895
14. Verification: Revolutions Cryptography Superior 15 895
15. 16 bytes: 128-bit primes Cryptography Superior 16 880
16. Encryption service 2 Cryptography Superior 16 880
17. 96 Cryptography ci0 17 864
18. Impossible to decrypt Cryptography Superior 17 864
19. NoobSaiBotSSuper Cryptography w01f 17 864
20. Symbols Cryptography zjzoloo 17 864
21. Broken Cert Cryptography Tulgaaaa 18 847
22. Handshake Cryptography Flame 19 829
23. Encryption service 1 Cryptography Superior 20 810
24. Kano Cryptography unknown 21 790
25. Oracle is here Cryptography Tulgaaaa 22 769
26. Weakryption Cryptography Flame 22 769
27. Khan's Factorization Raid Cryptography zjzoloo 23 747
28. Verification: Reloaded Cryptography Superior 23 747
29. 16 bytes: 256-bit primes Cryptography Superior 24 724
30. Horde's Base Cryptography zjzoloo 24 724
31. Look Like Long Cryptography Tulgaaaa 24 724
32. MATHrix Cryptography zjzoloo 24 724
33. Nature Cryptography Bilgee 24 724
34. Nomad's Key Cryptography zjzoloo 24 724
35. Weak Digital Signature Cryptography Flame 25 700
36. Finite Steppe Cryptography zjzoloo 27 649
37. Hash Game Cryptography Saruul 27 649
38. Italy Cryptography unknown 27 649
39. Modular encryption reloaded Cryptography Superior 27 649
40. Pheonix Cryptography Flame 28 622
41. Weak Mac Cryptography unknown 28 622
42. Hard RSA Cryptography Flame 29 594
43. Nameless Cryptography unknown 29 594
44. Урт тоо Cryptography Uzi 29 594
45. The Scribe's Little Oopsie Cryptography zjzoloo 30 565
46. Encryption Standard Advanced Cryptography Superior 31 535
47. Kindergarten Cryptography zjzoloo 31 535
48. Шүлэг 2025 Cryptography dorjoos 31 535
49. Brainrot Cryptography unknown 32 504
50. r00t Cryptography unknown 32 504
51. Reality Security Access Cryptography zjzoloo 32 504
52. Embrace the randomness Cryptography Superior 33 472
53. EncodeManiac! Cryptography unknown 33 472
54. sumPrimes revenge Cryptography Tulgaaaa 33 472
55. IDK Cryptography unknown 35 405
56. Primal Cryptography Flame 35 405
57. The First Half: Reloaded Cryptography Superior 35 405
58. Favorite number Cryptography Superior 36 370
59. Verification Cryptography Superior 36 370
60. 1-р шатны дараа Cryptography zjzoloo 37 334
61. Enigmatic Cryptography Uzi 38 297
62. Seed of future Cryptography unknown 38 297
63. Holy Letter Cryptography zjzoloo 39 259
64. roxy-2 Cryptography unknown 39 259
65. Warmup 2024 Cryptography unknown 39 259
66. Шаар Cryptography unknown 39 259
67. are you admin i think nahh Cryptography Tulgaaaa 40 220
68. First Blood: Reloaded Cryptography Superior 41 180
69. New crypto Cryptography Ds3c 41 180
70. random Cryptography unknown 41 180
71. roxy-1 Cryptography unknown 42 139
72. Ticket Generator Cryptography Bilgee 44 54
73. RSA Cryptography TheEyeLid 45 10
74. Scan me Cryptography unknown 45 10
75. Checker Cryptography unknown 46 10
76. Modular encryption Cryptography Tulgaaaa 47 10
77. New -> Old Cryptography dorjoos 47 10
78. The First Half Cryptography Superior 47 10
79. Cybercook Cryptography Uzi 48 10
80. Decrypt me: 6 Cryptography unknown 50 10
81. Just encryption Cryptography unknown 52 10
82. RSA tutorial Cryptography Superior 52 10
83. XOR without X Cryptography Superior 52 10
84. 4r3 Y0u Bl1nd Cryptography Uzi 53 10
85. Nightfall Cryptography unknown 53 10
86. unknown key but known Cryptography Tulgaaaa 53 10
87. dlugi Cryptography unknown 54 10
88. Really Suspicious Algorithm Cryptography Superior 57 10
89. Crypto analysis Cryptography unknown 60 10
90. Complete random key Cryptography Superior 62 10
91. Number2Text Cryptography unknown 62 10
92. Бие халаалт Cryptography Superior 62 10
93. xo | rorororo Cryptography w01f 63 10
94. Унш унш бас дахин унш Cryptography unknown 64 10
95. Advanced Encryption Standard Cryptography Superior 65 10
96. Alphabet Cryptography unknown 65 10
97. sumPrimes Cryptography Tulgaaaa 68 10
98. Alice and Bob Part 2 Cryptography Ds3c 69 10
99. Crypto Sensei Cryptography unknown 69 10
100. Dance Dance Dance Cryptography unknown 69 10
101. 中文余数 Cryptography Tulgaaaa 71 10
102. Decode me: 2 Cryptography unknown 72 10
103. Baby crypto Cryptography Flame 73 10
104. Юлий Цезарийн төгсгөл Cryptography w01f 73 10
105. Рийл крипто Cryptography w01f 83 10
106. Decrypt me: 7 Cryptography unknown 86 10
107. Morse Cryptography unknown 88 10
108. Cookbook Cryptography unknown 98 10
109. Decrypt me: 8 Cryptography unknown 98 10
110. 2D Cryptography unknown 99 10
111. 1_26 Cryptography unknown 101 10
112. Decrypt me: 2 Cryptography unknown 101 10
113. Certification Cryptography Uzi 108 10
114. Wakanda үүрд Cryptography Bilgee 110 10
115. Нууц зурвас Cryptography Superior 117 10
116. Decode me: 8 Cryptography unknown 119 10
117. Easy RSA Cryptography Xyptonize 119 10
118. Шүлэг Cryptography now.sh 125 10
119. Simple Puzzle Cryptography unknown 128 10
120. 13-р зуун 2018 Cryptography Ds3c 143 10
121. Old but gold Cryptography unknown 145 10
122. Decode me: 9 Cryptography unknown 147 10
123. Shiree Cryptography olsujabu 161 10
124. Decrypt me: 5 Cryptography unknown 168 10
125. Ромын байлдан дагуулагч Cryptography unknown 200 10
126. roshan's banner Cryptography Tulgaaaa 207 10
127. Decode me: 5 Cryptography unknown 208 10
128. Бие халаалт 2018 Cryptography Ds3c 209 10
129. Decode me: 4 Cryptography unknown 213 10
130. 13-р зуун Cryptography unknown 221 10
131. Decrypt me: 1 Cryptography unknown 224 10
132. Decode me: 3 Cryptography unknown 232 10
133. Decode me: 1 Cryptography unknown 254 10
134. Emojis Cryptography Uzi 257 10
135. Smells like 10 Spirit Cryptography unknown 278 10
136. First blood Cryptography Flame 319 10