| Date | User | Challenge | Score |
| wapoy64924 | Greatest Common Divisor | 15 | |
| ghovhann | RSA Signatures | 25 | |
| Hello123 | Greatest Common Divisor | 15 | |
| alaaabdelmaksod | Bytes and Big Integers | 10 | |
| Gengg_ | Chinese Remainder Theorem | 40 | |
| mypalpal | Deriving Symmetric Keys | 40 | |
| immsoleym | Modular Binomials | 80 | |
| zero98 | Hex | 5 | |
| DuckMaster | Gotta Go Fast | 40 | |
| mypalpal | Computing Shared Secrets | 30 | |
| em2294 | Modular Binomials | 80 | |
| mcginn00 | Base64 | 10 | |
| devan | Authenticated Handshake | 40 | |
| N3rvz | Greatest Common Divisor | 15 | |
| Sannadan | Bringing It All Together | 50 | |
| Cold4 | Extended GCD | 20 | |
| zero98 | ASCII | 5 | |
| fjukh7872 | WOTS Up 2 | 90 | |
| 0xl3x | XOR Starter | 10 | |
| zero98 | Great Snakes | 3 | |
| ovcone | Monoprime | 30 | |
| SilverSpirit | Bytes and Big Integers | 10 | |
| DuckMaster | ZKP Introduction | 5 | |
| ovcone | Factoring | 15 | |
| heartstoller | XOR Properties | 15 | |
| ovcone | RSA Signatures | 25 | |
| benito255 | RSA vs RNG | 150 | |
| ghovhann | RSA Decryption | 20 | |
| Jonirene | Flipping Cookie | 60 | |
| Cold4 | Greatest Common Divisor | 15 | |
| ghovhann | Private Keys | 20 | |
| Dessert | Salty | 20 | |
| ghovhann | Euler's Totient | 20 | |
| ghovhann | Public Keys | 15 | |
| lnganhhuy | You either know, XOR you don't | 30 | |
| benito255 | Montgomery's Ladder | 40 | |
| zero98 | Finding Flags | 2 | |
| ovcone | RSA Decryption | 20 | |
| ghovhann | Modular Exponentiation | 10 | |
| N3rvz | You either know, XOR you don't | 30 | |
| ovcone | Private Keys | 20 | |
| ghovhann | Bean Counter | 60 | |
| heartstoller | XOR Starter | 10 | |
| ovcone | Euler's Totient | 20 | |
| ovcone | Public Keys | 15 | |
| Crisxian | Modes of Operation Starter | 15 | |
| Andyisthebestt | Quadratic Residues | 25 | |
| ovcone | Modular Exponentiation | 10 | |
| lnganhhuy | Favourite byte | 20 | |
| quangntenemy | Special Soundness | 25 |
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