| Date | User | Challenge | Score |
| AshwinnNairr | Hex | 5 | |
| AshwinnNairr | ASCII | 5 | |
| Thulasinath | Modular Inverting | 25 | |
| Thulasinath | Modular Arithmetic 2 | 20 | |
| Dragonheart516 | Greatest Common Divisor | 15 | |
| Thulasinath | Modular Arithmetic 1 | 20 | |
| Thulasinath | Extended GCD | 20 | |
| AshwinnNairr | Great Snakes | 3 | |
| ModulusMarauder | XOR Properties | 15 | |
| Thulasinath | Greatest Common Divisor | 15 | |
| Dragonheart516 | Lemur XOR | 40 | |
| AshwinnNairr | Finding Flags | 2 | |
| wylited | Modular Inverting | 25 | |
| JohnDuck | ASCII | 5 | |
| Dragonheart516 | Encoding Challenge | 40 | |
| Thulasinath | XOR Starter | 10 | |
| wylited | Modular Arithmetic 2 | 20 | |
| wylited | Modular Arithmetic 1 | 20 | |
| wylited | Extended GCD | 20 | |
| wylited | Greatest Common Divisor | 15 | |
| MuhaiminHasanein | Unencryptable | 125 | |
| Dragonheart516 | You either know, XOR you don't | 30 | |
| Thulasinath | Base64 | 10 | |
| MuhaiminHasanein | Roll your Own | 125 | |
| Chtupv_22 | Resisting Bruteforce | 10 | |
| Thulasinath | Hex | 5 | |
| Thulasinath | ASCII | 5 | |
| atosh502 | Lemur XOR | 40 | |
| Dragonheart516 | Favourite byte | 20 | |
| Thulasinath | Network Attacks | 5 | |
| MuhaiminHasanein | Ellipse Curve Cryptography | 125 | |
| wylited | You either know, XOR you don't | 30 | |
| Thulasinath | Great Snakes | 3 | |
| BADWARE | Structure of AES | 15 | |
| Thulasinath | Finding Flags | 2 | |
| hitagi | Bytes and Big Integers | 10 | |
| wylited | Favourite byte | 20 | |
| MuhaiminHasanein | Broken RSA | 100 | |
| MuhaiminHasanein | Successive Powers | 60 | |
| elassy | Base64 | 10 | |
| taki1 | Inferius Prime | 30 | |
| Dragonheart516 | XOR Properties | 15 | |
| Dragonheart516 | XOR Starter | 10 | |
| Eimer | Hex | 5 | |
| elassy | Hex | 5 | |
| azaelluna | Bytes and Big Integers | 10 | |
| MuhaiminHasanein | Network Attacks | 5 | |
| MuhaiminHasanein | Bean Counter | 60 | |
| elassy | ASCII | 5 | |
| MuhaiminHasanein | Symmetry | 50 |
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