| Date | User | Challenge | Score |
| Pooja_choudhary | A Twisted Mind | 80 | |
| louay | XOR Properties | 15 | |
| Sam001 | Null or Never | 100 | |
| RoninKJ | Round Keys | 20 | |
| cedric013 | Cipher Mode Picker (HKCERT CTF) | 0 | |
| Sam001 | RSA Backdoor Viability | 175 | |
| Sam001 | Ron was Wrong, Whit is Right | 90 | |
| Medeusa | Ellipse Curve Cryptography | 125 | |
| Pkv123 | A True Genus | 175 | |
| Sam001 | Fast Primes | 75 | |
| Sam001 | Marin's Secrets | 50 | |
| bubz683 | XOR Starter | 10 | |
| Pkv123 | Meet me in the Claw | 120 | |
| Sam001 | Infinite Descent | 50 | |
| Sam001 | Endless Emails | 150 | |
| Pkv123 | Dual Masters | 90 | |
| Sam001 | Everything is Still Big | 100 | |
| Sam001 | Crossed Wires | 100 | |
| Edems | Bean Counter | 60 | |
| Sam001 | Everything is Big | 70 | |
| Sam001 | Inferius Prime | 30 | |
| Pkv123 | Abelian SIDH | 90 | |
| Jaskaskaskas | Round Keys | 20 | |
| Sam001 | Square Eyes | 35 | |
| RoninKJ | Structure of AES | 15 | |
| enigma140 | Modes of Operation Starter | 15 | |
| Pkv123 | Better than Linear | 85 | |
| Tanmay_62 | RSA or HMAC? Part 2 | 100 | |
| Tanmay_62 | The Matrix Revolutions | 125 | |
| 24BECSE19_DT | RSA vs RNG | 150 | |
| Tanmay_62 | The Matrix Reloaded | 100 | |
| dhirendra_16 | Mister Saplin's Preview | 80 | |
| Tanmay_62 | The Matrix | 75 | |
| Pkv123 | André Encoding | 80 | |
| dhirendra_16 | Mister Saplins The Prover | 125 | |
| dhirendra_16 | Let's Prove It Again | 175 | |
| Pkv123 | What's My Kernel | 70 | |
| Tanmay_62 | Script Kiddie | 70 | |
| Tanmay_62 | Common Ground | 75 | |
| Pkv123 | CSIDH Key Exchange | 90 | |
| dhirendra_16 | Three Isogenies | 35 | |
| Jaskaskaskas | Structure of AES | 15 | |
| Tanmay_62 | No Difference | 175 | |
| dhirendra_16 | Two Isogenies | 30 | |
| Tanmay_62 | MDFlag | 125 | |
| 24BECSE19_DT | Nothing Up My Sleeve | 150 | |
| Tanmay_62 | Mixed Up | 120 | |
| lchomin | Monoprime | 30 | |
| dhirendra_16 | Introduction to Isogenies | 10 | |
| dhirendra_16 | DLOG on the Surface | 40 |
You are now level Current level