| Date | User | Challenge | Score |
| eko_071 | Gram Schmidt | 30 | |
| mdybicz | Passwords as Keys | 50 | |
| sveta_shumovai | Encoding Challenge | 40 | |
| styxs | Encoding Challenge | 40 | |
| 01169322 | Bringing It All Together | 50 | |
| BoaN235 | Public Keys | 15 | |
| omelet | Let's Prove It Again | 175 | |
| BoaN235 | Modular Exponentiation | 10 | |
| ConorKTUD | Introduction to Isogenies | 10 | |
| kamilkaminski02 | Background Reading | 5 | |
| DQH | Cofactor Cofantasy | 150 | |
| 01169322 | Diffusion through Permutation | 30 | |
| ConorKTUD | LWE Intro | 10 | |
| BoaN235 | Base64 | 10 | |
| Knic | Confusion through Substitution | 25 | |
| BoaN235 | Hex | 5 | |
| protein6r | ZKP Introduction | 5 | |
| BoaN235 | ASCII | 5 | |
| BoaN235 | Great Snakes | 3 | |
| ConorKTUD | LWE Background | 5 | |
| BoaN235 | Finding Flags | 2 | |
| faheeeem | Greatest Common Divisor | 15 | |
| trantho1601 | You either know, XOR you don't | 30 | |
| ConorKTUD | Gaussian Reduction | 50 | |
| luisedofon | Keyed Permutations | 5 | |
| johyphene | Greatest Common Divisor | 15 | |
| 01169322 | Confusion through Substitution | 25 | |
| Ap4sh | Bruce Schneier's Password: Part 2 | 250 | |
| faheeeem | Lemur XOR | 40 | |
| anomino283294389 | Finding Flags | 2 | |
| InTime | Modulus Inutilis | 50 | |
| Knic | Round Keys | 20 | |
| ConorKTUD | What's a Lattice? | 40 | |
| 01169322 | Round Keys | 20 | |
| omelet | Let's Prove It | 120 | |
| Knic | Structure of AES | 15 | |
| Valendula | Public Keys | 15 | |
| 01169322 | Structure of AES | 15 | |
| Valendula | Modular Exponentiation | 10 | |
| faheeeem | You either know, XOR you don't | 30 | |
| 01169322 | Resisting Bruteforce | 10 | |
| 01169322 | Keyed Permutations | 5 | |
| Knic | Resisting Bruteforce | 10 | |
| Otgontugs | Bytes and Big Integers | 10 | |
| Knic | Keyed Permutations | 5 | |
| ConorKTUD | Gram Schmidt | 30 | |
| batman1 | Base64 | 10 | |
| Jolmyip | Base64 | 10 | |
| johyphene | You either know, XOR you don't | 30 | |
| valh4x | Hamiltonicity 1 | 100 |
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