| Date | User | Challenge | Score |
| ytle | Round Keys | 20 | |
| 3l3ktr1c_f4n | Base64 | 10 | |
| R3 | Square Eyes | 35 | |
| 3l3ktr1c_f4n | Hex | 5 | |
| 3l3ktr1c_f4n | ASCII | 5 | |
| 3l3ktr1c_f4n | Great Snakes | 3 | |
| 3l3ktr1c_f4n | Finding Flags | 2 | |
| ducbao_luke | Chinese Remainder Theorem | 40 | |
| lulu2233 | ASCII | 5 | |
| R3 | Monoprime | 30 | |
| alm | Roll your Own | 125 | |
| tdgdsxic | Base64 | 10 | |
| lulu2233 | Great Snakes | 3 | |
| n0qword | XOR Starter | 10 | |
| lulu2233 | Finding Flags | 2 | |
| LMLD | Bytes and Big Integers | 10 | |
| n0qword | Bytes and Big Integers | 10 | |
| JulioAdames05 | Bytes and Big Integers | 10 | |
| JulioAdames05 | Base64 | 10 | |
| Berthorum | Base64 | 10 | |
| JulioAdames05 | Hex | 5 | |
| n0qword | Base64 | 10 | |
| ytle | Structure of AES | 15 | |
| lyun_cbh | XOR Starter | 10 | |
| tianyuan | Modes of Operation Starter | 15 | |
| funkytori | Montgomery's Ladder | 40 | |
| Deepika24 | Real Eisenstein | 150 | |
| JanvierDhiver | Finding Flags | 2 | |
| tdgdsxic | Hex | 5 | |
| Deepika24 | Chinese Remainder Theorem | 40 | |
| hijodedios | Great Snakes | 3 | |
| LMLD | Base64 | 10 | |
| SG_42 | XOR Properties | 15 | |
| Estudiante00 | Passwords as Keys | 50 | |
| Deepika24 | A Twisted Mind | 80 | |
| Deepika24 | Let's Decrypt Again | 175 | |
| Estudiante00 | Modes of Operation Starter | 15 | |
| NoBirdWasHam | Vote for Pedro | 150 | |
| Deepika24 | Vote for Pedro | 150 | |
| Estudiante00 | Bringing It All Together | 50 | |
| Estudiante00 | Diffusion through Permutation | 30 | |
| Deepika24 | Blinding Light | 120 | |
| Deepika24 | Let's Decrypt | 80 | |
| Estudiante00 | Confusion through Substitution | 25 | |
| n0qword | Hex | 5 | |
| Deepika24 | Signing Server | 60 | |
| Deepika24 | Null or Never | 100 | |
| LMLD | Hex | 5 | |
| Deepika24 | Bespoke Padding | 100 | |
| Deepika24 | RSA Backdoor Viability | 175 |
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