#diffie-hellman CTF challenges
9 CTF challenges using diffie-hellman from 7 CTFs (2021–2025), 9 with writeups.
Often combined with
#discrete-log 2 #small-key-bruteforce 1 #pohlig-hellman 1 #2-adic 1 #chosen-exponent 1 #custom-group-dlp 1 #small-parameters 1 #discrete-log-bruteforce 1 #degenerate-generator 1 #meet-in-the-middle 1
Challenges
Filter and sort these in the challenge browser →
| Challenge | CTF | Weight | Category | Has |
|---|---|---|---|---|
| dhke_adventure | UIUCTF 2021 | – | Crypto | files wu 2 |
| dhke_intro | UIUCTF 2021 | – | Crypto | files wu 2 |
| keyexchange | WolvCTF 2023 | 24.33 | Crypto | files wu 2 |
| MITM | darkCON 2021 | 24.06 | Crypto | files wu 1 |
| Secure_Channel | COMPFEST 2021 | – | Crypto | files wu 1 |
| MiTM | Securinets 2021 Quals | 41.71 | Crypto | files wu 1 |
| Z2kDH | WolvCTF 2023 | 24.33 | Crypto | files wu 1 |
| Easy_Diffy | PwnMe 2025 Quals | 24.95 | Crypto | files wu 1 |
| steps | corCTF 2024 | 55.00 | Crypto | files wu 1 |