| Date | User | Challenge | Score |
| soraia | ASCII | 5 | |
| herbertgarrison | Curves and Logs | 40 | |
| yasminabellouz | Great Snakes | 3 | |
| soraia | Finding Flags | 2 | |
| Belphegorr | Legendre Symbol | 35 | |
| KaitlynN | Computing Public Values | 25 | |
| yasminabellouz | Finding Flags | 2 | |
| Kacper_PW | Ellipse Curve Cryptography | 125 | |
| herbertgarrison | Scalar Multiplication | 35 | |
| herbertgarrison | Point Addition | 30 | |
| __mat13__ | Successive Powers | 60 | |
| KaitlynN | Generators of Groups | 20 | |
| fenrosys | Noise Free | 40 | |
| SpedDevill | Modular Arithmetic 1 | 20 | |
| MateuszMotrenko | Unencryptable | 125 | |
| R3xD | XOR Starter | 10 | |
| KaitlynN | Working with Fields | 10 | |
| SpedDevill | Extended GCD | 20 | |
| vitorataliba | You either know, XOR you don't | 30 | |
| vitorataliba | Favourite byte | 20 | |
| vitorataliba | XOR Properties | 15 | |
| bes | Successive Powers | 60 | |
| fenrosys | Collider | 50 | |
| fenrosys | No Difference | 175 | |
| fenrosys | Hash Stuffing | 50 | |
| fenrosys | Seventy-Two | 50 | |
| fenrosys | MD0 | 80 | |
| fenrosys | Long Story Short | 60 | |
| SpedDevill | Greatest Common Divisor | 15 | |
| vitorataliba | XOR Starter | 10 | |
| KaitlynN | Structure of AES | 15 | |
| vitorataliba | Bytes and Big Integers | 10 | |
| MateuszMotrenko | Roll your Own | 125 | |
| fenrosys | Let's Decrypt Again | 175 | |
| R3xD | Bytes and Big Integers | 10 | |
| vitorataliba | Base64 | 10 | |
| SpedDevill | Lemur XOR | 40 | |
| syahmiani2 | The Good, The Pad, The Ugly | 100 | |
| fenrosys | Vote for Pedro | 150 | |
| vitorataliba | Hex | 5 | |
| MichaelMbugua | Modes of Operation Starter | 15 | |
| vitorataliba | ASCII | 5 | |
| MateuszMotrenko | Ellipse Curve Cryptography | 125 | |
| R3xD | Base64 | 10 | |
| fenrosys | Special Soundness | 25 | |
| vitorataliba | Great Snakes | 3 | |
| syahmiani1 | Hamiltonicity 1 | 100 | |
| MateuszMotrenko | No Way Back Home | 100 | |
| syahmiani1 | Hamiltonicity (CryptoHack) | 0 | |
| SpedDevill | You either know, XOR you don't | 30 |
You are now level Current level