| Date | User | Challenge | Score |
| ismadanish52 | ASCII | 5 | |
| bena_47 | ECB Oracle | 60 | |
| bena_47 | Passwords as Keys | 50 | |
| savil | Greatest Common Divisor | 15 | |
| lichunsheng | Jack's Birthday Hash | 20 | |
| bena_47 | Modes of Operation Starter | 15 | |
| l3th4l | Backpack Cryptography | 120 | |
| tyhan | Legendre Symbol | 35 | |
| bena_47 | Bringing It All Together | 50 | |
| bena_47 | Diffusion through Permutation | 30 | |
| bena_47 | Confusion through Substitution | 25 | |
| tyhan | Chinese Remainder Theorem | 40 | |
| tyhan | Modular Square Root | 35 | |
| charles_kabuga | Bean Counter | 60 | |
| tyhan | Quadratic Residues | 25 | |
| charles_kabuga | Symmetry | 50 | |
| KK5559D | Private Keys | 20 | |
| charles_kabuga | Flipping Cookie | 60 | |
| bena_47 | Round Keys | 20 | |
| jskeob | Modular Square Root | 35 | |
| charles_kabuga | ECB CBC WTF | 55 | |
| Grey12321 | ASCII | 5 | |
| charles_kabuga | ECB Oracle | 60 | |
| tyhan | Oracular Spectacular | 150 | |
| Aguero20 | Passwords as Keys | 50 | |
| TTiny | Bytes and Big Integers | 10 | |
| tyhan | Beatboxer | 150 | |
| tyhan | Logon Zero | 80 | |
| tyhan | The Good, The Pad, The Ugly | 100 | |
| Aguero20 | Modes of Operation Starter | 15 | |
| tyhan | Pad Thai | 80 | |
| tyhan | Paper Plane | 120 | |
| tyhan | Oh SNAP | 120 | |
| Aguero20 | Bringing It All Together | 50 | |
| tyhan | Forbidden Fruit | 150 | |
| tyhan | Stream of Consciousness | 80 | |
| tyhan | Triple DES | 60 | |
| Zcaesar | You either know, XOR you don't | 30 | |
| tyhan | CTRIME | 70 | |
| TotPro | RSA Decryption | 20 | |
| tyhan | ECB Oracle | 60 | |
| tyhan | Passwords as Keys | 50 | |
| Aguero20 | Diffusion through Permutation | 30 | |
| tyhan | Bean Counter | 60 | |
| tyhan | Symmetry | 50 | |
| randt4050 | Finding Flags | 2 | |
| tyhan | Lazy CBC | 60 | |
| luwofi | Transparency | 50 | |
| tyhan | Flipping Cookie | 60 | |
| bena_47 | Structure of AES | 15 |
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