| Date | User | Challenge | Score |
| 0637_Dara | Hex | 5 | |
| SandyWiraabdy | Parameter Injection | 60 | |
| chinmoy_paul | Moving Problems | 150 | |
| 0637_Dara | ASCII | 5 | |
| Txwarex | Modular Arithmetic 1 | 20 | |
| Somesh_Ganti | Finding Flags | 2 | |
| chinmoy_paul | Checkpoint | 150 | |
| Beastie | Finding Flags | 2 | |
| 0637_Dara | Great Snakes | 3 | |
| 0_0A | Confusion through Substitution | 25 | |
| amani_koros | You either know, XOR you don't | 30 | |
| anhsaoleloi | Lazy CBC | 60 | |
| Heazzy | Flipping Cookie | 60 | |
| bbozsanyi | Base64 | 10 | |
| Gizela | RSA Decryption | 20 | |
| Gizela | Private Keys | 20 | |
| TriGGun | Hex | 5 | |
| Gizela | Euler's Totient | 20 | |
| Kebzor | Diffusion through Permutation | 30 | |
| dipankar_upd08 | Trust Games | 150 | |
| Gizela | Public Keys | 15 | |
| BADWARE | Saying Hello | 20 | |
| kanzaa | Export-grade | 100 | |
| kanzaa | Parameter Injection | 60 | |
| TriGGun | ASCII | 5 | |
| Billkevin | Modular Binomials | 80 | |
| chrspn | Favourite byte | 20 | |
| 0637_Dara | Finding Flags | 2 | |
| kanzaa | Deriving Symmetric Keys | 40 | |
| Gizela | Modular Exponentiation | 10 | |
| chrspn | XOR Properties | 15 | |
| RevaldoEnggaMP | Public Keys | 15 | |
| TriGGun | Great Snakes | 3 | |
| feralyaslsbl | Computing Shared Secrets | 30 | |
| chrspn | XOR Starter | 10 | |
| Billkevin | Adrien's Signs | 80 | |
| chrspn | Bytes and Big Integers | 10 | |
| BADWARE | TLS Handshake | 15 | |
| agdo31 | Bytes and Big Integers | 10 | |
| kanzaa | Computing Shared Secrets | 30 | |
| kanzaa | Computing Public Values | 25 | |
| kanzaa | Generators of Groups | 20 | |
| kanzaa | Working with Fields | 10 | |
| Heazzy | ECB CBC WTF | 55 | |
| bagas | RSA Signatures | 25 | |
| kanzaa | Modulus Inutilis | 50 | |
| Billkevin | Chinese Remainder Theorem | 40 | |
| RevaldoEnggaMP | Modular Exponentiation | 10 | |
| kanzaa | Salty | 20 | |
| kanzaa | Manyprime | 40 |
You are now level Current level