| Date | User | Challenge | Score |
| Loivan | Factoring | 15 | |
| Razan | Great Snakes | 3 | |
| Razan | Finding Flags | 2 | |
| Rozi | Invariant | 250 | |
| Maram_AYER | Legendre Symbol | 35 | |
| Loivan | RSA Signatures | 25 | |
| Meenu | Modular Exponentiation | 10 | |
| kacpersowka | Deriving Symmetric Keys | 40 | |
| kacpersowka | Computing Shared Secrets | 30 | |
| paulihno15 | Successive Powers | 60 | |
| GoodBoy71 | Finding Flags | 2 | |
| Vlad_Valar | Diffusion through Permutation | 30 | |
| starmie3700 | Passwords as Keys | 50 | |
| sp1n0z4 | Moving Problems | 150 | |
| agentjlrmt | Triple DES | 60 | |
| youusseeff | Quadratic Residues | 25 | |
| agentjlrmt | Oh SNAP | 120 | |
| maalissa | Network Attacks | 5 | |
| Amani | Deriving Symmetric Keys | 40 | |
| cpicozzi | ECB CBC WTF | 55 | |
| Amani | Computing Shared Secrets | 30 | |
| vii | You either know, XOR you don't | 30 | |
| Amani | Computing Public Values | 25 | |
| Amani | Generators of Groups | 20 | |
| Amani | Working with Fields | 10 | |
| youusseeff | Modular Inverting | 25 | |
| Amani | Modulus Inutilis | 50 | |
| Vlad_Valar | Confusion through Substitution | 25 | |
| Amani | Salty | 20 | |
| Wequra | Point Negation | 10 | |
| Amani | Manyprime | 40 | |
| Amani | Monoprime | 30 | |
| paulihno15 | Working with Fields | 10 | |
| sharadyadav | Bytes and Big Integers | 10 | |
| sharadyadav | Base64 | 10 | |
| Amani | Factoring | 15 | |
| sharadyadav | Hex | 5 | |
| shadowdefend | XOR Starter | 10 | |
| Amani | RSA Signatures | 25 | |
| Vlad_Valar | Round Keys | 20 | |
| sharadyadav | ASCII | 5 | |
| skkra0 | Modular Inverting | 25 | |
| Vlad_Valar | Structure of AES | 15 | |
| alquozhenry | Favourite byte | 20 | |
| youusseeff | Modular Arithmetic 2 | 20 | |
| cpicozzi | Passwords as Keys | 50 | |
| shadowdefend | Bytes and Big Integers | 10 | |
| youusseeff | Modular Arithmetic 1 | 20 | |
| sharadyadav | Great Snakes | 3 | |
| sharadyadav | Finding Flags | 2 |
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