| Date | User | Challenge | Score |
| dirtyDeedz | ECB CBC WTF | 55 | |
| Quoc130370 | ASCII | 5 | |
| Aryaethn | Let's Prove It Again | 175 | |
| sirdoug21 | Quadratic Residues | 25 | |
| Quoc130370 | Network Attacks | 5 | |
| Quoc130370 | Great Snakes | 3 | |
| Quoc130370 | Finding Flags | 2 | |
| MohamedMujahed | Megalomaniac 1 | 100 | |
| THz | Endless Emails | 150 | |
| Aryaethn | Mister Saplins The Prover | 125 | |
| Pinotage | Legendre Symbol | 35 | |
| Aryaethn | Hamiltonicity 2 | 175 | |
| Croven | Bytes and Big Integers | 10 | |
| MohamedMujahed | Saying Hello | 20 | |
| josue | Base64 | 10 | |
| Rabah0 | You either know, XOR you don't | 30 | |
| Aryaethn | An Evil Twisted Mind | 175 | |
| wideirp | Base64 | 10 | |
| hamon | Structure of AES | 15 | |
| hamon | Resisting Bruteforce | 10 | |
| Croven | Base64 | 10 | |
| hamon | Keyed Permutations | 5 | |
| oskaraz | ASCII | 5 | |
| Croven | Hex | 5 | |
| Aryaethn | The Matrix Revolutions | 125 | |
| wideirp | Hex | 5 | |
| MohamedMujahed | Authenticated Handshake | 40 | |
| Croven | ASCII | 5 | |
| oskaraz | Great Snakes | 3 | |
| Croven | Great Snakes | 3 | |
| MohamedMujahed | Decrypting TLS 1.2 | 30 | |
| wideirp | ASCII | 5 | |
| oskaraz | Finding Flags | 2 | |
| MohamedMujahed | Decrypting TLS 1.3 | 35 | |
| MohamedMujahed | TLS Handshake | 15 | |
| Rabah0 | XOR Properties | 15 | |
| MohamedMujahed | Sharks on the Wire | 10 | |
| MohamedMujahed | Secure Protocols | 5 | |
| Aryaethn | Fischlin's Transformation (CryptoHack) | 0 | |
| MohamedMujahed | From Private to Public Key LWE | 25 | |
| MohamedMujahed | LWE Low Bits Message | 20 | |
| MohamedMujahed | LWE High Bits Message | 15 | |
| MohamedMujahed | LWE Intro | 10 | |
| MohamedMujahed | Backpack Cryptography | 120 | |
| MohamedMujahed | Find the Lattice | 100 | |
| MohamedMujahed | Gaussian Reduction | 50 | |
| MohamedMujahed | Gram Schmidt | 30 | |
| MohamedMujahed | Size and Basis | 15 | |
| MohamedMujahed | Vectors | 10 | |
| Vic2910 | You either know, XOR you don't | 30 |
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