| Date | User | Challenge | Score |
| pirt | XOR Properties | 15 | |
| nelson_nyambega | RSA Signatures | 25 | |
| Math | ASCII | 5 | |
| nelson_nyambega | RSA Decryption | 20 | |
| humoyun | Base64 | 10 | |
| nelson_nyambega | Private Keys | 20 | |
| nelson_nyambega | Euler's Totient | 20 | |
| nelson_nyambega | Public Keys | 15 | |
| nelson_nyambega | Modular Exponentiation | 10 | |
| Darren_Tanui | Monoprime | 30 | |
| l3huycrt | Modular Arithmetic 2 | 20 | |
| Kshiraja | Keyed Permutations | 5 | |
| Darren_Tanui | Factoring | 15 | |
| Math | Great Snakes | 3 | |
| pirt | XOR Starter | 10 | |
| pirt | Bytes and Big Integers | 10 | |
| Kshiraja | Network Attacks | 5 | |
| Math | Finding Flags | 2 | |
| pirt | Base64 | 10 | |
| pirt | Hex | 5 | |
| l3huycrt | Modular Arithmetic 1 | 20 | |
| pirt | ASCII | 5 | |
| pirt | Great Snakes | 3 | |
| pirt | Finding Flags | 2 | |
| lauretti | Bean Counter | 60 | |
| SignalNet4 | Resisting Bruteforce | 10 | |
| eman1233 | Great Snakes | 3 | |
| l3huycrt | Extended GCD | 20 | |
| melodyofasong | Favourite byte | 20 | |
| Holl0w | Twist and Shout (Zh3r0 CTF V2) | 0 | |
| Kshiraja | Great Snakes | 3 | |
| Holl0w | Leet Universe (ImaginaryCTF (Daily)) | 0 | |
| s1340079 | RSA Decryption | 20 | |
| Kshiraja | Finding Flags | 2 | |
| biaso | Hex | 5 | |
| s1340079 | Public Keys | 15 | |
| eman1233 | Finding Flags | 2 | |
| Muriungife | Export-grade | 100 | |
| Holl0w | Blind (ECSC 2023 (Norway)) | 0 | |
| SignalNet4 | Keyed Permutations | 5 | |
| biaso | ASCII | 5 | |
| melodyofasong | XOR Properties | 15 | |
| biaso | Great Snakes | 3 | |
| biaso | Finding Flags | 2 | |
| omarhaj | Hex | 5 | |
| SignalNet4 | Chinese Remainder Theorem | 40 | |
| humoyun | ASCII | 5 | |
| character | Bytes and Big Integers | 10 | |
| canaryda | Passwords as Keys | 50 | |
| l3huycrt | Greatest Common Divisor | 15 |
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