| Date | User | Challenge | Score |
| bagas | Base64 | 10 | |
| skillbuildingprs | Finding Flags | 2 | |
| M_Hamdi_Basril | Euler's Totient | 20 | |
| katharinaav | Favourite byte | 20 | |
| M_Hamdi_Basril | Public Keys | 15 | |
| uzukhai | RSA Decryption | 20 | |
| katharinaav | XOR Properties | 15 | |
| Jjjjpppp | Finding Flags | 2 | |
| katharinaav | XOR Starter | 10 | |
| uzukhai | Private Keys | 20 | |
| katharinaav | Bytes and Big Integers | 10 | |
| M_Hamdi_Basril | Modular Exponentiation | 10 | |
| saus | Micro Transmissions | 120 | |
| Muhammad_alifta | Euler's Totient | 20 | |
| Muhammad_alifta | RSA Signatures | 25 | |
| Muhammad_alifta | RSA Decryption | 20 | |
| Muhammad_alifta | Private Keys | 20 | |
| nofiantorifki | RSA Decryption | 20 | |
| Muhammad_alifta | Public Keys | 15 | |
| katharinaav | Base64 | 10 | |
| theheff | Round Keys | 20 | |
| nofiantorifki | Private Keys | 20 | |
| Muhammad_alifta | Modular Exponentiation | 10 | |
| nofiantorifki | Euler's Totient | 20 | |
| katharinaav | Hex | 5 | |
| nofiantorifki | Public Keys | 15 | |
| theheff | Structure of AES | 15 | |
| anaking | Bytes and Big Integers | 10 | |
| anaking | Base64 | 10 | |
| anaking | Hex | 5 | |
| anaking | ASCII | 5 | |
| theheff | Resisting Bruteforce | 10 | |
| loserlesbian64 | Modular Square Root | 35 | |
| nofiantorifki | Modular Exponentiation | 10 | |
| wazza | You either know, XOR you don't | 30 | |
| theheff | Keyed Permutations | 5 | |
| BellaL14155 | Finding Flags | 2 | |
| wazza | Favourite byte | 20 | |
| brooksKiley1 | Bytes and Big Integers | 10 | |
| theheff | Modular Binomials | 80 | |
| loserlesbian64 | Legendre Symbol | 35 | |
| bokkebru | Base64 | 10 | |
| bokkebru | Hex | 5 | |
| karima | Finding Flags | 2 | |
| katharinaav | ASCII | 5 | |
| Mariel | Passwords as Keys | 50 | |
| Mariel | Modes of Operation Starter | 15 | |
| Mariel | Bringing It All Together | 50 | |
| theheff | Adrien's Signs | 80 | |
| wazza | XOR Properties | 15 |
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