| Date | User | Challenge | Score |
| Nayrolf97 | Quadratic Residues | 25 | |
| WyattZhang | Salty | 20 | |
| Javier77999 | Hex | 5 | |
| ipressma | Lazy CBC | 60 | |
| bowie41 | Computing Public Values | 25 | |
| afonsomap | Great Snakes | 3 | |
| StanleJanesz | Hash Stuffing | 50 | |
| francois | Gaussian Reduction | 50 | |
| afonsomap | Finding Flags | 2 | |
| bowie41 | Modulus Inutilis | 50 | |
| WyattZhang | Manyprime | 40 | |
| Arjun005 | Modular Binomials | 80 | |
| ipressma | Flipping Cookie | 60 | |
| Javier77999 | ASCII | 5 | |
| pafcio | Diffusion through Permutation | 30 | |
| 0xmelon | Base64 | 10 | |
| ipressma | ECB Oracle | 60 | |
| 0xmelon | Hex | 5 | |
| StanleJanesz | Collider | 50 | |
| 0xmelon | ASCII | 5 | |
| 0xmelon | Great Snakes | 3 | |
| 0xmelon | Finding Flags | 2 | |
| gawol332 | Jack's Birthday Hash | 20 | |
| bowie41 | Salty | 20 | |
| Sravya_Pogiri | Hex | 5 | |
| Sravya_Pogiri | ASCII | 5 | |
| Mathinfernal | Confusion through Substitution | 25 | |
| bowie41 | Monoprime | 30 | |
| Raven0X7 | You either know, XOR you don't | 30 | |
| Sravya_Pogiri | Great Snakes | 3 | |
| _hh_ | Base64 | 10 | |
| 01180766 | Crossed Wires | 100 | |
| WyattZhang | Monoprime | 30 | |
| Sravya_Pogiri | Finding Flags | 2 | |
| Arjun005 | Adrien's Signs | 80 | |
| WyattZhang | Factoring | 15 | |
| manuel_racle | ECB CBC WTF | 55 | |
| Arjun005 | Chinese Remainder Theorem | 40 | |
| NandaZ04 | RSA Signatures | 25 | |
| bowie41 | RSA Signatures | 25 | |
| _hh_ | Hex | 5 | |
| Arjun005 | Modular Square Root | 35 | |
| 0M4R | Oh SNAP | 120 | |
| christianjosephs | Quadratic Residues | 25 | |
| kien | Quadratic Residues | 25 | |
| A5hTurN3R | RSA Signatures | 25 | |
| omelet | Blinding Light | 120 | |
| ali9 | XOR Starter | 10 | |
| WyattZhang | RSA Signatures | 25 | |
| christianjosephs | Modular Inverting | 25 |
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