| Date | User | Challenge | Score |
| Psofos | Computing Shared Secrets | 30 | |
| bagamti24 | Hex | 5 | |
| bobiealice | Bytes and Big Integers | 10 | |
| Psofos | Computing Public Values | 25 | |
| _emmakaranja | RSA Decryption | 20 | |
| bagamti24 | ASCII | 5 | |
| _emmakaranja | Private Keys | 20 | |
| bobiealice | Base64 | 10 | |
| _emmakaranja | Euler's Totient | 20 | |
| MrMad | RSA Signatures | 25 | |
| phat1911 | The Matrix | 75 | |
| _emmakaranja | Public Keys | 15 | |
| _emmakaranja | Modular Exponentiation | 10 | |
| bobiealice | Hex | 5 | |
| tabboPNW | Great Snakes | 3 | |
| Psofos | Generators of Groups | 20 | |
| bobiealice | ASCII | 5 | |
| bobiealice | Network Attacks | 5 | |
| bobiealice | Great Snakes | 3 | |
| bobiealice | Finding Flags | 2 | |
| bagamti24 | Finding Flags | 2 | |
| Maddy | Finding Flags | 2 | |
| tabboPNW | Finding Flags | 2 | |
| Nisoa111 | Greatest Common Divisor | 15 | |
| Ness2626 | Modular Binomials | 80 | |
| baka9_73748 | Chinese Remainder Theorem | 40 | |
| nivigo | Hex | 5 | |
| dragon99 | Modular Binomials | 80 | |
| python_error404 | XOR Properties | 15 | |
| mins106 | Quadratic Residues | 25 | |
| devsec1 | Modular Inverting | 25 | |
| lmlA | Keyed Permutations | 5 | |
| zinccannon | Passwords as Keys | 50 | |
| PQTrung | LWE Background | 5 | |
| insaneguy000 | Favourite byte | 20 | |
| insaneguy000 | XOR Properties | 15 | |
| nuhe | Extended GCD | 20 | |
| lhr | Let's Decrypt | 80 | |
| davidhbookclub | ProSign 3 | 100 | |
| thisnello | Decrypting TLS 1.3 | 35 | |
| CYBERKID | Great Snakes | 3 | |
| CYBERKID | Finding Flags | 2 | |
| hanahiennguyen | Lemur XOR | 40 | |
| Sa2006 | Modular Inverting | 25 | |
| nuhe | Greatest Common Divisor | 15 | |
| Sa2006 | Modular Arithmetic 2 | 20 | |
| Sa2006 | Extended GCD | 20 | |
| superhaka | XOR Properties | 15 | |
| gandalfed | Greatest Common Divisor | 15 | |
| DavidTruong | Edwards Goes Degenerate | 100 |
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