| Date | User | Challenge | Score |
| VISHAL_S_K_07 | Lazy CBC | 60 | |
| khawla1 | Salty | 20 | |
| BADWARE | Keyed Permutations | 5 | |
| Mulama | You either know, XOR you don't | 30 | |
| njga1 | Hex | 5 | |
| Mulama | Favourite byte | 20 | |
| Pinotage | Computing Shared Secrets | 30 | |
| Mulama | XOR Properties | 15 | |
| khawla1 | Manyprime | 40 | |
| Mulama | XOR Starter | 10 | |
| Mulama | Bytes and Big Integers | 10 | |
| Pinotage | Computing Public Values | 25 | |
| Mulama | Base64 | 10 | |
| Gustavo_Lima | Finding Flags | 2 | |
| tempmail12345678 | Collider | 50 | |
| Mulama | Hex | 5 | |
| VISHAL_S_K_07 | ECB CBC WTF | 55 | |
| Mulama | ASCII | 5 | |
| Wahaj__12 | Let's Decrypt Again | 175 | |
| FOXY69 | Base64 | 10 | |
| Wahaj__12 | Vote for Pedro | 150 | |
| Wahaj__12 | Blinding Light | 120 | |
| Wahaj__12 | Let's Decrypt | 80 | |
| Mulama | Great Snakes | 3 | |
| Wahaj__12 | Signing Server | 60 | |
| Destruction988 | Inferius Prime | 30 | |
| Wahaj__12 | Null or Never | 100 | |
| Wahaj__12 | Bespoke Padding | 100 | |
| Wahaj__12 | RSA Backdoor Viability | 175 | |
| ermis_grivas | Greatest Common Divisor | 15 | |
| Wahaj__12 | Ron was Wrong, Whit is Right | 90 | |
| Wahaj__12 | Fast Primes | 75 | |
| Wahaj__12 | Marin's Secrets | 50 | |
| marti012 | Bean Counter | 60 | |
| Wahaj__12 | Infinite Descent | 50 | |
| Wahaj__12 | Endless Emails | 150 | |
| Mr_akwanin | XOR Properties | 15 | |
| Wahaj__12 | Everything is Still Big | 100 | |
| Wahaj__12 | Crossed Wires | 100 | |
| marti012 | Symmetry | 50 | |
| Wahaj__12 | Everything is Big | 70 | |
| rgshadow | ASCII | 5 | |
| Wahaj__12 | Manyprime | 40 | |
| Wahaj__12 | Monoprime | 30 | |
| Wahaj__12 | Factoring | 15 | |
| Wahaj__12 | RSA Signatures | 25 | |
| CHAZ4R | Marin's Secrets | 50 | |
| CHAZ4R | Infinite Descent | 50 | |
| marti012 | Flipping Cookie | 60 | |
| rgshadow | Great Snakes | 3 |
You are now level Current level