| Date | User | Challenge | Score |
| jyppi | XOR Starter | 10 | |
| hallabarhoumeh | Unencryptable | 125 | |
| hallabarhoumeh | Roll your Own | 125 | |
| sponqyHyena | Token Appreciation | 5 | |
| iniM0n | Triple DES | 60 | |
| gabripo | RSA Decryption | 20 | |
| pbidle | Curves and Logs | 40 | |
| hallabarhoumeh | Ellipse Curve Cryptography | 125 | |
| Q29tcmFkZV9kZQo | Great Snakes | 3 | |
| Hattmakare | Private Keys | 20 | |
| sponqyHyena | RSA Decryption | 20 | |
| iniM0n | Lazy CBC | 60 | |
| Hattmakare | Euler's Totient | 20 | |
| hallabarhoumeh | No Way Back Home | 100 | |
| minimi | Bytes and Big Integers | 10 | |
| gabriellino1936 | Diffusion through Permutation | 30 | |
| Q29tcmFkZV9kZQo | Finding Flags | 2 | |
| hallabarhoumeh | Broken RSA | 100 | |
| pbidle | Scalar Multiplication | 35 | |
| pbidle | Point Addition | 30 | |
| 0xf5ceff2fd | Modular Arithmetic 2 | 20 | |
| richardDragon21 | Modular Arithmetic 2 | 20 | |
| iniM0n | Smooth Criminal | 60 | |
| hallabarhoumeh | Modular Binomials | 80 | |
| Hez | Deriving Symmetric Keys | 40 | |
| ZUIEKI_kicktv | Chinese Remainder Theorem | 40 | |
| Hattmakare | Public Keys | 15 | |
| ChinoCribioli | Special Soundness | 25 | |
| hallabarhoumeh | Adrien's Signs | 80 | |
| hallabarhoumeh | Successive Powers | 60 | |
| Hattmakare | Modular Exponentiation | 10 | |
| diffelapi | Point Negation | 10 | |
| hallabarhoumeh | Chinese Remainder Theorem | 40 | |
| Hez | Computing Shared Secrets | 30 | |
| ZUIEKI_kicktv | Modular Square Root | 35 | |
| 0xf5ceff2fd | Modular Arithmetic 1 | 20 | |
| hallabarhoumeh | Modular Square Root | 35 | |
| hallabarhoumeh | Legendre Symbol | 35 | |
| babel766 | Hex | 5 | |
| Hez | Computing Public Values | 25 | |
| babel766 | ASCII | 5 | |
| gabriellino1936 | Confusion through Substitution | 25 | |
| babel766 | Great Snakes | 3 | |
| hallabarhoumeh | Quadratic Residues | 25 | |
| babel766 | Finding Flags | 2 | |
| thundera | Finding Flags | 2 | |
| Hez | Generators of Groups | 20 | |
| Soisina | ASCII | 5 | |
| Hez | Working with Fields | 10 | |
| whc | You either know, XOR you don't | 30 |
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