| Date | User | Challenge | Score |
| FelipeSG | Lazy CBC | 60 | |
| StopRob | Point Negation | 10 | |
| Teneeduu2 | Backpack Cryptography | 120 | |
| qthang | Quadratic Residues | 25 | |
| Carter_Ference | Sign in Please (HKCERT CTF) | 0 | |
| ed25519 | You either know, XOR you don't | 30 | |
| Kantaifis | Hex | 5 | |
| Kantaifis | ASCII | 5 | |
| gathman | Network Attacks | 5 | |
| Kantaifis | Great Snakes | 3 | |
| Kantaifis | Finding Flags | 2 | |
| gathman | Great Snakes | 3 | |
| up_chs | Crossed Wires | 100 | |
| Carter_Ference | Armory | 100 | |
| Quine | Modular Binomials | 80 | |
| Carter_Ference | ZKP Introduction | 5 | |
| NomadS | XOR Starter | 10 | |
| tpaiva | MD0 | 80 | |
| Carter_Ference | Introduction to Isogenies | 10 | |
| NomadS | Bytes and Big Integers | 10 | |
| Carter_Ference | Vectors | 10 | |
| Quine | Adrien's Signs | 80 | |
| Carter_Ference | Token Appreciation | 5 | |
| Leorizs | Base64 | 10 | |
| Carter_Ference | Jack's Birthday Hash | 20 | |
| Carter_Ference | Background Reading | 5 | |
| NomadS | Base64 | 10 | |
| NomadS | Hex | 5 | |
| Skywalks567 | Factoring | 15 | |
| Skywalks567 | RSA Signatures | 25 | |
| StopRob | Background Reading | 5 | |
| NomadS | ASCII | 5 | |
| qthang | Modular Inverting | 25 | |
| qthang | Modular Arithmetic 2 | 20 | |
| Quine | Successive Powers | 60 | |
| SaveThePlanet | Base64 | 10 | |
| NomadS | Great Snakes | 3 | |
| halliana | You either know, XOR you don't | 30 | |
| halliana | Favourite byte | 20 | |
| andkal24 | Modular Exponentiation | 10 | |
| Melon_N | Chinese Remainder Theorem | 40 | |
| up_chs | Everything is Big | 70 | |
| NomadS | Finding Flags | 2 | |
| halliana | XOR Properties | 15 | |
| Magtis | XOR Starter | 10 | |
| Quine | Chinese Remainder Theorem | 40 | |
| qthang | Modular Arithmetic 1 | 20 | |
| Skywalks567 | RSA Decryption | 20 | |
| z3r0cool | Legendre Symbol | 35 | |
| cahidenes | Elliptic Nodes | 150 |
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