| Date | User | Challenge | Score |
| hata | Symmetry | 50 | |
| Askle | Hex | 5 | |
| skshieldus33 | XOR Starter | 10 | |
| skshieldus33 | Bytes and Big Integers | 10 | |
| avecmonamour | Base64 | 10 | |
| Askle | ASCII | 5 | |
| Askle | Great Snakes | 3 | |
| fathan_ | Salty | 20 | |
| skshieldus33 | Base64 | 10 | |
| Askle | Finding Flags | 2 | |
| SpongeBob369 | Confusion through Substitution | 25 | |
| skshieldus33 | Hex | 5 | |
| skshieldus33 | ASCII | 5 | |
| fathan_ | Manyprime | 40 | |
| skshieldus33 | Great Snakes | 3 | |
| skshieldus33 | Finding Flags | 2 | |
| quen | Bytes and Big Integers | 10 | |
| _Luke_ | Finding Flags | 2 | |
| tyluudinh | Elliptic Nodes | 150 | |
| VS_G | XOR Starter | 10 | |
| tyluudinh | Micro Transmissions | 120 | |
| SpongeBob369 | Round Keys | 20 | |
| tyluudinh | Exceptional Curves | 100 | |
| ox1bx | Let's Prove It Again | 175 | |
| VS_G | Bytes and Big Integers | 10 | |
| tyluudinh | Bruce Schneier's Password: Part 2 | 250 | |
| avecmonamour | Hex | 5 | |
| avecmonamour | ASCII | 5 | |
| DeViator | Efficient Exchange | 50 | |
| SpongeBob369 | Structure of AES | 15 | |
| ox1bx | Mister Saplin's Preview | 80 | |
| matraz60 | Modular Inverting | 25 | |
| PrinfD | Blinding Light | 120 | |
| yuzu | Resisting Bruteforce | 10 | |
| Kairo | Greatest Common Divisor | 15 | |
| PrinfD | RSA or HMAC? Part 2 | 100 | |
| VS_G | Base64 | 10 | |
| jowj | XOR Starter | 10 | |
| SpongeBob369 | Resisting Bruteforce | 10 | |
| ox1bx | Couples | 100 | |
| tyluudinh | LFSR Destroyer | 250 | |
| SpongeBob369 | Keyed Permutations | 5 | |
| tyluudinh | Hamiltonicity 1 | 100 | |
| vibehutao | Modes of Operation Starter | 15 | |
| ox1bx | Pairing-Based Cryptography | 50 | |
| tyluudinh | OR Proof | 75 | |
| jowj | Bytes and Big Integers | 10 | |
| ox1bx | ZKP Introduction | 5 | |
| vibehutao | Diffusion through Permutation | 30 | |
| tyluudinh | Too Many Errors | 100 |
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