| Date | User | Challenge | Score |
| arctic219 | Greatest Common Divisor | 15 | |
| anushar777 | RSA Signatures | 25 | |
| arctic219 | You either know, XOR you don't | 30 | |
| anushar777 | RSA Decryption | 20 | |
| arctic219 | Favourite byte | 20 | |
| anushar777 | Private Keys | 20 | |
| arctic219 | XOR Properties | 15 | |
| anushar777 | Euler's Totient | 20 | |
| arctic219 | XOR Starter | 10 | |
| arctic219 | Bytes and Big Integers | 10 | |
| aminebenselem | Network Attacks | 5 | |
| arctic219 | Base64 | 10 | |
| Dheeraj | ASCII | 5 | |
| anushar777 | Public Keys | 15 | |
| anushar777 | Modular Exponentiation | 10 | |
| dirio | ASCII | 5 | |
| dirio | Great Snakes | 3 | |
| hakka52 | Everything is Big | 70 | |
| aminebenselem | Modular Arithmetic 1 | 20 | |
| usario | Finding Flags | 2 | |
| aminebenselem | Extended GCD | 20 | |
| Dheeraj | Great Snakes | 3 | |
| z1g24g | Triple DES | 60 | |
| GingerCarrot | A True Genus | 175 | |
| LKey1235813 | Finding Flags | 2 | |
| JIZJAZ | Finding Flags | 2 | |
| timl0721 | You either know, XOR you don't | 30 | |
| timl0721 | Favourite byte | 20 | |
| timl0721 | XOR Properties | 15 | |
| timl0721 | XOR Starter | 10 | |
| timl0721 | Bytes and Big Integers | 10 | |
| timl0721 | Base64 | 10 | |
| timl0721 | Hex | 5 | |
| timl0721 | ASCII | 5 | |
| timl0721 | Great Snakes | 3 | |
| timl0721 | Finding Flags | 2 | |
| Meepcom | Modular Square Root | 35 | |
| hidden_blade_0x0 | Lemur XOR | 40 | |
| MilkiSushi | XOR Starter | 10 | |
| sgrenz | Lo-Hi Card Game | 120 | |
| hidden_blade_0x0 | You either know, XOR you don't | 30 | |
| Jerbear3256 | Flipping Cookie | 60 | |
| OxpjVMbpRuveW | Hex | 5 | |
| spectralByte96 | Greatest Common Divisor | 15 | |
| OxpjVMbpRuveW | ASCII | 5 | |
| OxpjVMbpRuveW | Great Snakes | 3 | |
| OxpjVMbpRuveW | Finding Flags | 2 | |
| MilkiSushi | Bytes and Big Integers | 10 | |
| hunhaki | Great Snakes | 3 | |
| hunhaki | Finding Flags | 2 |
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