| Date | User | Challenge | Score |
| Gsismanis | Structure of AES | 15 | |
| kenham11 | Hex | 5 | |
| Gsismanis | Export-grade | 100 | |
| ThanosZara | Base64 | 10 | |
| kozibozi | Favourite byte | 20 | |
| kenham11 | ASCII | 5 | |
| foreandr | Finding Flags | 2 | |
| Gabsadio | Bean Counter | 60 | |
| Gsismanis | Parameter Injection | 60 | |
| Banana_Babanana | No Way Back Home | 100 | |
| kenham11 | Great Snakes | 3 | |
| Gsismanis | Deriving Symmetric Keys | 40 | |
| vsetti | Square Eyes | 35 | |
| MichaelWheel | Modular Binomials | 80 | |
| kozibozi | XOR Properties | 15 | |
| Panzi | Passwords as Keys | 50 | |
| DenisCorneanu | Private Keys | 20 | |
| San98der | Base64 | 10 | |
| DenisCorneanu | Euler's Totient | 20 | |
| DenisCorneanu | Modular Exponentiation | 10 | |
| DenisCorneanu | Public Keys | 15 | |
| San98der | Hex | 5 | |
| San98der | ASCII | 5 | |
| platonaspap | Background Reading | 5 | |
| platonaspap | Point Negation | 10 | |
| kenham11 | Finding Flags | 2 | |
| saisoma123 | Modular Inverting | 25 | |
| Thaimeo2006 | Null or Never | 100 | |
| whit3g4ndalf | ECB Oracle | 60 | |
| saisoma123 | Modular Arithmetic 2 | 20 | |
| SherlockHack | Chinese Remainder Theorem | 40 | |
| saisoma123 | Modular Arithmetic 1 | 20 | |
| Nadav160 | Infinite Descent | 50 | |
| TWX185 | Hex | 5 | |
| TWX185 | ASCII | 5 | |
| baoan | Modular Binomials | 80 | |
| TWX185 | Great Snakes | 3 | |
| saisoma123 | Extended GCD | 20 | |
| gh0stvageo | RSA Signatures | 25 | |
| francois | Saying Hello | 20 | |
| Redender64 | Missing Modulus | 80 | |
| Gabsadio | Symmetry | 50 | |
| Klaudia | Blinding Light | 120 | |
| space_invader | Hash Stuffing | 50 | |
| Gabsadio | Flipping Cookie | 60 | |
| lidor | Parameter Injection | 60 | |
| MichaelWheel | Adrien's Signs | 80 | |
| Klaudia | Let's Decrypt | 80 | |
| johvikas | JSON in JSON | 40 | |
| foxadecimal | You either know, XOR you don't | 30 |
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