| Date | User | Challenge | Score |
| D3c0d3R_1337 | Null or Never | 100 | |
| gliborio | Flipping Cookie | 60 | |
| aoiultramar | You either know, XOR you don't | 30 | |
| gliborio | ECB CBC WTF | 55 | |
| D3c0d3R_1337 | Bespoke Padding | 100 | |
| gliborio | ECB Oracle | 60 | |
| useless | Modular Inverting | 25 | |
| gliborio | Passwords as Keys | 50 | |
| DsysK | XOR Starter | 10 | |
| Adnan8869 | Lo-Hi Card Game | 120 | |
| Pixelated_Nebula | Base64 | 10 | |
| RussianBotanist | Base64 | 10 | |
| D3c0d3R_1337 | Marin's Secrets | 50 | |
| QWXXHSX123 | Jack's Birthday Confusion | 30 | |
| 1Click | XOR Starter | 10 | |
| gliborio | Modes of Operation Starter | 15 | |
| rfjuddhjcz | Great Snakes | 3 | |
| RussianBotanist | Hex | 5 | |
| gliborio | Bringing It All Together | 50 | |
| D3c0d3R_1337 | Infinite Descent | 50 | |
| RussianBotanist | ASCII | 5 | |
| rfjuddhjcz | Finding Flags | 2 | |
| D3c0d3R_1337 | Endless Emails | 150 | |
| gliborio | Diffusion through Permutation | 30 | |
| RussianBotanist | Great Snakes | 3 | |
| aoiultramar | Favourite byte | 20 | |
| ysned | RSA Decryption | 20 | |
| D3c0d3R_1337 | Everything is Still Big | 100 | |
| ysned | Private Keys | 20 | |
| RussianBotanist | Finding Flags | 2 | |
| ysned | Euler's Totient | 20 | |
| ysned | Public Keys | 15 | |
| jc256 | XOR Starter | 10 | |
| ysned | Modular Exponentiation | 10 | |
| D3c0d3R_1337 | Crossed Wires | 100 | |
| aoiultramar | XOR Properties | 15 | |
| gliborio | Confusion through Substitution | 25 | |
| VxRabbit | Flipping Cookie | 60 | |
| RoninKJ | Stream of Consciousness | 80 | |
| gliborio | Round Keys | 20 | |
| jc256 | Bytes and Big Integers | 10 | |
| jc256 | Base64 | 10 | |
| aoiultramar | XOR Starter | 10 | |
| gliborio | Structure of AES | 15 | |
| jc256 | Hex | 5 | |
| tpham7459 | The Good, The Pad, The Ugly | 100 | |
| Benjamin_Stimpy | XOR Properties | 15 | |
| tpham7459 | Pad Thai | 80 | |
| jc256 | ASCII | 5 | |
| jc256 | Great Snakes | 3 |
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