| Date | User | Challenge | Score |
| Grupo1MAplicada | Manyprime | 40 | |
| moizkhan1408 | Extended GCD | 20 | |
| atha123 | Favourite byte | 20 | |
| Grupo1MAplicada | Square Eyes | 35 | |
| moizkhan1408 | Greatest Common Divisor | 15 | |
| UMAyuma | Working with Fields | 10 | |
| Finiel | Keyed Permutations | 5 | |
| UMAyuma | Modulus Inutilis | 50 | |
| TiaraCitraL | Bean Counter | 60 | |
| Grupo1MAplicada | Monoprime | 30 | |
| TiaraCitraL | Symmetry | 50 | |
| grizzzer | Moving Problems | 150 | |
| TiaraCitraL | Passwords as Keys | 50 | |
| Hexerei | Monoprime | 30 | |
| Grupo1MAplicada | Inferius Prime | 30 | |
| danieldegracia81 | Passwords as Keys | 50 | |
| danieldegracia81 | Modes of Operation Starter | 15 | |
| Grupo1MAplicada | Factoring | 15 | |
| danieldegracia81 | Bringing It All Together | 50 | |
| joao | ASCII | 5 | |
| Grupo1MAplicada | RSA Signatures | 25 | |
| Grupo1MAplicada | RSA Decryption | 20 | |
| Grupo1MAplicada | Private Keys | 20 | |
| UMAyuma | Salty | 20 | |
| Hexerei | Factoring | 15 | |
| Grupo1MAplicada | Euler's Totient | 20 | |
| nahida_oowoo | XOR Starter | 10 | |
| user154354 | XOR Starter | 10 | |
| user154354 | Bytes and Big Integers | 10 | |
| danieldegracia81 | Diffusion through Permutation | 30 | |
| danieldegracia81 | Confusion through Substitution | 25 | |
| user154354 | Base64 | 10 | |
| danieldegracia81 | Round Keys | 20 | |
| user154354 | Hex | 5 | |
| danieldegracia81 | Structure of AES | 15 | |
| user154354 | ASCII | 5 | |
| user154354 | Great Snakes | 3 | |
| Moazzam786 | Great Snakes | 3 | |
| user154354 | Finding Flags | 2 | |
| Moazzam786 | Finding Flags | 2 | |
| danieldegracia81 | Resisting Bruteforce | 10 | |
| grupo52026 | Everything is Big | 70 | |
| CrazyFoX | Great Snakes | 3 | |
| hakka52 | Forbidden Fruit | 150 | |
| danieldegracia81 | Keyed Permutations | 5 | |
| nahida_oowoo | Bytes and Big Integers | 10 | |
| Ichrak_essabah | Greatest Common Divisor | 15 | |
| xingchi | Computing Public Values | 25 | |
| Hexerei | RSA Signatures | 25 | |
| MEGOhak | ASCII | 5 |
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