| Date | User | Challenge | Score |
| gbvv3 | Base64 | 10 | |
| paoloignacio | XOR Starter | 10 | |
| Quezz | Base64 | 10 | |
| Quezz | Hex | 5 | |
| Quezz | ASCII | 5 | |
| nisuu | JWT Secrets | 25 | |
| Quezz | Great Snakes | 3 | |
| skwangawurz | Hex | 5 | |
| Quezz | Finding Flags | 2 | |
| VuiVe | Everything is Big | 70 | |
| skwangawurz | ASCII | 5 | |
| NanSri | Bytes and Big Integers | 10 | |
| valor0 | ECB CBC WTF | 55 | |
| valor0 | Lazy CBC | 60 | |
| TTING | RSA Decryption | 20 | |
| nisuu | No Way JOSE | 20 | |
| ziebrahh | Favourite byte | 20 | |
| aziz420 | Base64 | 10 | |
| skwangawurz | Great Snakes | 3 | |
| skwangawurz | Finding Flags | 2 | |
| nisuu | JWT Sessions | 10 | |
| valor0 | Passwords as Keys | 50 | |
| nisuu | Token Appreciation | 5 | |
| ibenson86 | Hex | 5 | |
| ibenson86 | ASCII | 5 | |
| Pauldapancake | Modular Arithmetic 1 | 20 | |
| CrypticPaladin | Hex | 5 | |
| ashley_ecalnir | Hex | 5 | |
| aziz420 | Hex | 5 | |
| Toha | WOTS Up 2 | 90 | |
| Baeco | Deriving Symmetric Keys | 40 | |
| valor0 | Modes of Operation Starter | 15 | |
| hthh | Lazy CBC | 60 | |
| valor0 | Bringing It All Together | 50 | |
| Hiiamming | Let's Decrypt Again | 175 | |
| Pauldapancake | Extended GCD | 20 | |
| hthh | Flipping Cookie | 60 | |
| hhthuis | Roll your Own | 125 | |
| valor0 | Diffusion through Permutation | 30 | |
| hthh | ECB Oracle | 60 | |
| ashley_ecalnir | ASCII | 5 | |
| Baeco | Computing Shared Secrets | 30 | |
| Baeco | Computing Public Values | 25 | |
| Mrsh1014 | ECB Oracle | 60 | |
| valor0 | Confusion through Substitution | 25 | |
| CrypticPaladin | ASCII | 5 | |
| aziz420 | ASCII | 5 | |
| pochita | Finding Flags | 2 | |
| halliana | Unevaluated (TETCTF) | 0 | |
| TTING | Private Keys | 20 |
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