| Date | User | Challenge | Score |
| jh02 | Square Eyes | 35 | |
| hakka52 | DLOG on the Surface | 40 | |
| marwamohamed | Deriving Symmetric Keys | 40 | |
| marwamohamed | Computing Shared Secrets | 30 | |
| jh02 | Monoprime | 30 | |
| marwamohamed | Computing Public Values | 25 | |
| marwamohamed | Generators of Groups | 20 | |
| marwamohamed | Working with Fields | 10 | |
| marwamohamed | Modulus Inutilis | 50 | |
| marwamohamed | Salty | 20 | |
| jh02 | Inferius Prime | 30 | |
| marwamohamed | Manyprime | 40 | |
| hakka52 | Montgomery Curves | 30 | |
| marwamohamed | Monoprime | 30 | |
| marwamohamed | Factoring | 15 | |
| jh02 | Factoring | 15 | |
| marwamohamed | RSA Signatures | 25 | |
| bean2o | You either know, XOR you don't | 30 | |
| bean2o | Favourite byte | 20 | |
| marwamohamed | RSA Decryption | 20 | |
| marwamohamed | Private Keys | 20 | |
| bean2o | XOR Properties | 15 | |
| marwamohamed | Euler's Totient | 20 | |
| marwamohamed | Public Keys | 15 | |
| bean2o | XOR Starter | 10 | |
| marwamohamed | Modular Exponentiation | 10 | |
| bean2o | Bytes and Big Integers | 10 | |
| jh02 | RSA Signatures | 25 | |
| solenef | You either know, XOR you don't | 30 | |
| solenef | Favourite byte | 20 | |
| jh02 | RSA Decryption | 20 | |
| jh02 | Private Keys | 20 | |
| anush | Favourite byte | 20 | |
| jh02 | Euler's Totient | 20 | |
| jh02 | Public Keys | 15 | |
| mryagami | Great Snakes | 3 | |
| jh02 | Modular Exponentiation | 10 | |
| SCHROBB | Diffusion through Permutation | 30 | |
| mryagami | Finding Flags | 2 | |
| fucla | Confusion through Substitution | 25 | |
| anush | XOR Properties | 15 | |
| Qu1n7as | Invariant | 250 | |
| cryptK | Hex | 5 | |
| cryptoRiO | Beatboxer | 150 | |
| und3d | XOR Properties | 15 | |
| cryptoRiO | Paper Plane | 120 | |
| cryptK | ASCII | 5 | |
| kabanchik_07 | Private Keys | 20 | |
| fucla | Round Keys | 20 | |
| SnBork | Bytes and Big Integers | 10 |
You are now level Current level