| Date | User | Challenge | Score |
| charles4i | XOR Starter | 10 | |
| 24BECSE19_DT | Megalomaniac 2 | 120 | |
| DevyanJethwa | ECB Oracle | 60 | |
| Blank12 | Quadratic Residues | 25 | |
| imbadatnaming | Finding Flags | 2 | |
| brickzilla | ZKP Introduction | 5 | |
| DevyanJethwa | Passwords as Keys | 50 | |
| Zeron556 | Extended GCD | 20 | |
| DevyanJethwa | Modes of Operation Starter | 15 | |
| arxn_mr | Hex | 5 | |
| EmilyMakaka | Structure of AES | 15 | |
| Soann | Bytes and Big Integers | 10 | |
| EmilyMakaka | Resisting Bruteforce | 10 | |
| DevyanJethwa | Bringing It All Together | 50 | |
| Srihc | Base64 | 10 | |
| EmilyMakaka | Keyed Permutations | 5 | |
| DevyanJethwa | Diffusion through Permutation | 30 | |
| DevyanJethwa | Confusion through Substitution | 25 | |
| DevyanJethwa | Round Keys | 20 | |
| kesleryak | Passwords as Keys | 50 | |
| DevyanJethwa | Structure of AES | 15 | |
| Too | Passwords as Keys | 50 | |
| DevyanJethwa | Resisting Bruteforce | 10 | |
| DevyanJethwa | Keyed Permutations | 5 | |
| JJJJJJJJ | Bytes and Big Integers | 10 | |
| Srihc | Hex | 5 | |
| Srihc | ASCII | 5 | |
| 24BECSE19_DT | Megalomaniac 1 | 100 | |
| eeshahsabirkhan1 | Bean Counter | 60 | |
| Srihc | Great Snakes | 3 | |
| MakarovKardevsky | Common Ground | 75 | |
| Too | Modes of Operation Starter | 15 | |
| kesleryak | Modes of Operation Starter | 15 | |
| Soann | Base64 | 10 | |
| kesleryak | Bringing It All Together | 50 | |
| Elineeman | Script Kiddie | 70 | |
| issatayev | Great Snakes | 3 | |
| eeshahsabirkhan1 | Symmetry | 50 | |
| mojitodev | Modular Arithmetic 1 | 20 | |
| illuminate0221 | Bringing It All Together | 50 | |
| Zeron556 | Greatest Common Divisor | 15 | |
| eeshahsabirkhan1 | Flipping Cookie | 60 | |
| eeshahsabirkhan1 | ECB CBC WTF | 55 | |
| llllllll | Bytes and Big Integers | 10 | |
| Blank12 | Modular Inverting | 25 | |
| Srihc | Finding Flags | 2 | |
| EOGWAYO | Keyed Permutations | 5 | |
| jehad | RSA or HMAC? Part 2 | 100 | |
| jehad | JSON in JSON | 40 | |
| jehad | RSA or HMAC? | 35 |
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