| Date | User | Challenge | Score |
| MoMasarweh | Greatest Common Divisor | 15 | |
| ghovhann | Honest Verifier Zero Knowledge | 30 | |
| cookiwuwu | Great Snakes | 3 | |
| cookiwuwu | Finding Flags | 2 | |
| SAATVIK | Greatest Common Divisor | 15 | |
| mypalpal | Special Soundness | 25 | |
| crankydarling | Background Reading | 5 | |
| Arctic12 | Great Snakes | 3 | |
| ghovhann | Special Soundness | 25 | |
| Arctic12 | Finding Flags | 2 | |
| leon_k | You either know, XOR you don't | 30 | |
| whoami4 | RSA or HMAC? Part 2 | 100 | |
| Gengg_ | Monoprime | 30 | |
| dadan | Passwords as Keys | 50 | |
| Superior | pekobot (AIS3 Pre-Exam) | 0 | |
| lp1804 | ASCII | 5 | |
| Gengg_ | Factoring | 15 | |
| mypalpal | Proofs of Knowledge | 20 | |
| MrRaven | Chinese Remainder Theorem | 40 | |
| lp1804 | Great Snakes | 3 | |
| viprorqiv | Resisting Bruteforce | 10 | |
| zhuce6 | XOR Properties | 15 | |
| lp1804 | Finding Flags | 2 | |
| fathircyy | Base64 | 10 | |
| viprorqiv | Keyed Permutations | 5 | |
| dadan | Modes of Operation Starter | 15 | |
| ANONECODER | Greatest Common Divisor | 15 | |
| dadan | Bringing It All Together | 50 | |
| fathircyy | Hex | 5 | |
| movefun | Monoprime | 30 | |
| bytenightnether | Hex | 5 | |
| cryptotube | Quadratic Residues | 25 | |
| viprorqiv | Chinese Remainder Theorem | 40 | |
| zhuce6 | XOR Starter | 10 | |
| ARM4da | Legendre Symbol | 35 | |
| dadan | Diffusion through Permutation | 30 | |
| bytenightnether | ASCII | 5 | |
| Reqsuent | Flipping Cookie | 60 | |
| zhuce6 | Bytes and Big Integers | 10 | |
| jyhoon | Public Keys | 15 | |
| dadan | Confusion through Substitution | 25 | |
| bytenightnether | Network Attacks | 5 | |
| Reqsuent | ECB CBC WTF | 55 | |
| fathircyy | ASCII | 5 | |
| Gengg_ | RSA Signatures | 25 | |
| SypherZ | Parameter Injection | 60 | |
| dadan | Round Keys | 20 | |
| mypalpal | ZKP Introduction | 5 | |
| Reqsuent | ECB Oracle | 60 | |
| zhuce6 | Base64 | 10 |
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