| Date | User | Challenge | Score |
| mbexy | XOR Properties | 15 | |
| SAATVIK | Bean Counter | 60 | |
| Lauraq | Modular Arithmetic 2 | 20 | |
| lucy54 | ECB CBC WTF | 55 | |
| danyy | ASCII | 5 | |
| danyy | Great Snakes | 3 | |
| pinfish | XOR Properties | 15 | |
| M1r4ge | You either know, XOR you don't | 30 | |
| danyy | Finding Flags | 2 | |
| Mellivora | Computing Shared Secrets | 30 | |
| M1r4ge | Favourite byte | 20 | |
| M1r4ge | XOR Properties | 15 | |
| rabb1t | Greatest Common Divisor | 15 | |
| pinfish | XOR Starter | 10 | |
| aisitihalimah | Everything is Still Big | 100 | |
| aisitihalimah | Crossed Wires | 100 | |
| mbexy | XOR Starter | 10 | |
| aisitihalimah | Everything is Big | 70 | |
| aisitihalimah | Modulus Inutilis | 50 | |
| aisitihalimah | Salty | 20 | |
| kabbya | Base64 | 10 | |
| aisitihalimah | Manyprime | 40 | |
| aisitihalimah | Square Eyes | 35 | |
| aisitihalimah | Monoprime | 30 | |
| aisitihalimah | Inferius Prime | 30 | |
| akkult | Bean Counter | 60 | |
| M1r4ge | XOR Starter | 10 | |
| akkult | Symmetry | 50 | |
| aisitihalimah | Factoring | 15 | |
| no4h | ECB Oracle | 60 | |
| akkult | Flipping Cookie | 60 | |
| akkult | ECB CBC WTF | 55 | |
| mbexy | Bytes and Big Integers | 10 | |
| akkult | ECB Oracle | 60 | |
| SAATVIK | Symmetry | 50 | |
| M1r4ge | Bytes and Big Integers | 10 | |
| aisitihalimah | RSA Signatures | 25 | |
| akkult | Passwords as Keys | 50 | |
| aisitihalimah | RSA Decryption | 20 | |
| aisitihalimah | Private Keys | 20 | |
| aisitihalimah | Euler's Totient | 20 | |
| aisitihalimah | Public Keys | 15 | |
| Abdulaziz25aa | Great Snakes | 3 | |
| aisitihalimah | Modular Exponentiation | 10 | |
| akkult | Modes of Operation Starter | 15 | |
| aisitihalimah | You either know, XOR you don't | 30 | |
| aisitihalimah | Favourite byte | 20 | |
| aisitihalimah | XOR Properties | 15 | |
| akkult | Bringing It All Together | 50 | |
| aisitihalimah | XOR Starter | 10 |
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