| Date | User | Challenge | Score |
| nitanshuB001771 | Jack's Birthday Hash | 20 | |
| nitanshuB001771 | Jack's Birthday Confusion | 30 | |
| Dudji | ASCII | 5 | |
| nitanshuB001771 | MD0 | 80 | |
| nitanshuB001771 | Hash Stuffing | 50 | |
| nitanshuB001771 | Collider | 50 | |
| Dudji | Great Snakes | 3 | |
| nitanshuB001771 | Script Kiddie | 70 | |
| nitanshuB001771 | Additive | 70 | |
| nitanshuB001771 | Static Client | 100 | |
| nitanshuB001771 | Export-grade | 100 | |
| nitanshuB001771 | Parameter Injection | 60 | |
| nitanshuB001771 | Deriving Symmetric Keys | 40 | |
| gawol332 | Noise Free | 40 | |
| nitanshuB001771 | Computing Shared Secrets | 30 | |
| kaisersort | XOR Starter | 10 | |
| nitanshuB001771 | Computing Public Values | 25 | |
| nitanshuB001771 | Generators of Groups | 20 | |
| nitanshuB001771 | Working with Fields | 10 | |
| aliya | Monoprime | 30 | |
| aliya | Factoring | 15 | |
| Fly | Network Attacks | 5 | |
| aliya | RSA Signatures | 25 | |
| fadziutto | Stream of Consciousness | 80 | |
| aliya | RSA Decryption | 20 | |
| aliya | Private Keys | 20 | |
| fadziutto | Dancing Queen | 120 | |
| aliya | Euler's Totient | 20 | |
| teetoamate | Computing Public Values | 25 | |
| kaisersort | Bytes and Big Integers | 10 | |
| aliya | Bean Counter | 60 | |
| ziemniak | Modulus Inutilis | 50 | |
| gawol332 | From Private to Public Key LWE | 25 | |
| aliya | Symmetry | 50 | |
| aliya | Flipping Cookie | 60 | |
| aliya | ECB CBC WTF | 55 | |
| aliya | ECB Oracle | 60 | |
| kaisersort | Base64 | 10 | |
| ziemniak | Salty | 20 | |
| 020448535 | Chinese Remainder Theorem | 40 | |
| fadziutto | Oh SNAP | 120 | |
| teetoamate | Generators of Groups | 20 | |
| ziemniak | Manyprime | 40 | |
| ru_b1i | ASCII | 5 | |
| ru_b1i | Great Snakes | 3 | |
| ziemniak | Square Eyes | 35 | |
| LostStateMachine | Script Kiddie | 70 | |
| teetoamate | Working with Fields | 10 | |
| nitanshuB001771 | SSH Keys | 35 | |
| nitanshuB001771 | CERTainly not | 30 |
You are now level Current level