| Date | User | Challenge | Score |
| ScarecrowMOR | ASCII | 5 | |
| saeed_humsi | ASCII | 5 | |
| Yoshi135 | Favourite byte | 20 | |
| Dipen360 | Hex | 5 | |
| Mohieddine | You either know, XOR you don't | 30 | |
| ScarecrowMOR | Great Snakes | 3 | |
| Dipen360 | ASCII | 5 | |
| ScarecrowMOR | Finding Flags | 2 | |
| Dipen360 | Great Snakes | 3 | |
| Aryaethn | Bruce Schneier's Password | 100 | |
| Yoshi135 | XOR Properties | 15 | |
| Sadrazamv4 | Finding Flags | 2 | |
| canfshmicrowave | Keyed Permutations | 5 | |
| Dipen360 | Finding Flags | 2 | |
| Yoshi135 | XOR Starter | 10 | |
| Mohieddine | Favourite byte | 20 | |
| Frogenius | ASCII | 5 | |
| Pr0fiTX | Bytes and Big Integers | 10 | |
| Leospy | Legendre Symbol | 35 | |
| HandyZahwan04 | XOR Properties | 15 | |
| Buho | Greatest Common Divisor | 15 | |
| Aryaethn | Toshi's Treasure | 150 | |
| Mohieddine | XOR Properties | 15 | |
| zaidstudent4455 | Deriving Symmetric Keys | 40 | |
| Yoshi135 | Bytes and Big Integers | 10 | |
| Mohieddine | XOR Starter | 10 | |
| Frogenius | Great Snakes | 3 | |
| Maram_AYER | Keyed Permutations | 5 | |
| Frogenius | Finding Flags | 2 | |
| zaidstudent4455 | Everything is Big | 70 | |
| ana_s_ | Modular Exponentiation | 10 | |
| itg6j | RSA Decryption | 20 | |
| zaidstudent4455 | Bespoke Padding | 100 | |
| zaidstudent4455 | Null or Never | 100 | |
| Mohieddine | Bytes and Big Integers | 10 | |
| Mohieddine | Base64 | 10 | |
| Mohieddine | Hex | 5 | |
| Ahmed_Lutfi | Network Attacks | 5 | |
| Ahmed_Lutfi | You either know, XOR you don't | 30 | |
| Mohieddine | ASCII | 5 | |
| ana_s_ | Greatest Common Divisor | 15 | |
| PhantomMenace | Hex | 5 | |
| Ahmed_Lutfi | Favourite byte | 20 | |
| achoooo | Manyprime | 40 | |
| NicoNieners | RSA Signatures | 25 | |
| Mohieddine | Great Snakes | 3 | |
| Mohieddine | Finding Flags | 2 | |
| abdessamad | ASCII | 5 | |
| abdessamad | Great Snakes | 3 | |
| Zira | Efficient Exchange | 50 |
You are now level Current level