| Date | User | Challenge | Score |
| ariel07 | Confusion through Substitution | 25 | |
| kayoepic | Token Appreciation | 5 | |
| bagdatoglous | Successive Powers | 60 | |
| kayoepic | Jack's Birthday Hash | 20 | |
| dror_cr | Collider | 50 | |
| beernugget | Favourite byte | 20 | |
| TSOP | Factoring | 15 | |
| kayoepic | Background Reading | 5 | |
| Pat121 | Background Reading | 5 | |
| kayoepic | Working with Fields | 10 | |
| mar_ven | Finding Flags | 2 | |
| Oswald | Oh SNAP | 120 | |
| Komasan_ | Salty | 20 | |
| kayoepic | Modular Exponentiation | 10 | |
| Pat121 | Working with Fields | 10 | |
| DimitrisKafouros | Resisting Bruteforce | 10 | |
| ThankfulFarmer | Quadratic Residues | 25 | |
| Lienep | ZKP Introduction | 5 | |
| kayoepic | Quadratic Residues | 25 | |
| keymonet1406 | Flipping Cookie | 60 | |
| Pat121 | Modular Exponentiation | 10 | |
| kayoepic | Keyed Permutations | 5 | |
| kayoepic | ASCII | 5 | |
| Pat121 | Quadratic Residues | 25 | |
| dwra_vol | RSA Decryption | 20 | |
| ThankfulFarmer | Keyed Permutations | 5 | |
| dwra_vol | Private Keys | 20 | |
| Pat121 | Keyed Permutations | 5 | |
| ThankfulFarmer | ASCII | 5 | |
| ariel07 | Round Keys | 20 | |
| xaos333 | Bytes and Big Integers | 10 | |
| Dayss | XOR Properties | 15 | |
| Pat121 | ASCII | 5 | |
| Sanchita2 | RSA Signatures | 25 | |
| Komasan_ | Manyprime | 40 | |
| Kas_d_Attay | Chinese Remainder Theorem | 40 | |
| Pat121 | Finding Flags | 2 | |
| ThankfulFarmer | Finding Flags | 2 | |
| kayoepic | Finding Flags | 2 | |
| DimitrisKafouros | Keyed Permutations | 5 | |
| omricohen | Diffusion through Permutation | 30 | |
| mary12555488 | Favourite byte | 20 | |
| beernugget | XOR Properties | 15 | |
| TSOP | Parameter Injection | 60 | |
| jora_12 | You either know, XOR you don't | 30 | |
| NearXa | Paper Plane | 120 | |
| dawyane | Structure of AES | 15 | |
| TSOP | Deriving Symmetric Keys | 40 | |
| dwra_vol | Euler's Totient | 20 | |
| mary12555488 | XOR Properties | 15 |
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