이번에 암호르파티 라는 팀명으로 암호분석경진대회 (cryptocontest.kr) 를 나가게 되었다.
총 6개의 문제가 나왔는데, 1 ~ 4번은 고등부 수준의 문제, 그리고 5, 6번은 대학부 수준의 문제라고 한다.
각각 문제들을 간략히 설명해 보자면 다음과 같다.
- 사진 판별 인공지능이 있을 때, 특정 사진에 패치를 붙여서 아예 다른 사진으로 인식하게 만들기
- 6-round speck cipher 에 대한 인공지능을 이용해서 (입력 차분이 $\delta$ 임을 판별하는 인공지능) 7-round speck cipher 의 마지막 key를 추출해내는 것.
- 연속한 fault를 가진 RSA 복호화 알고리즘의 복호화 키를 복원해내는 것.
- 특정 코드 (cipher)를 최적화하여 속도를 가장 빠르게 만드는 것. (상대평가)
- 디지턱 포렌식을 이용하여 청사진을 복구해내는 것. (AES, Steganography, etc.)
- Isogeny 를 활용한 전자서명 알고리즘의 취약점을 분석하고, 이를 이용해 개인키를 알아내는 것.
1 ~ 4 번의 문제들은 2 ~ 3일 정도 소요되었던 것 같고, 5 ~ 6번은 자세하게 문제를 이해하느라 조금 더 걸렸던 것 같다. 나는 2, 3, 5, 6번의 문제들을 보았는데 나름대로 문제를 잘 해결한 것 같아서 좋은 대회 경험이였던 것 같다. 🙂
문제에 관심있는 분들을 위하여 github 링크를 남겨두도록 할 테니 관심이 있다면 가서 풀이나 문제들을 보는 것을 추천한다. 내년에도 나갈지는 아직 모르겠다.. ㅎㅎ
GitHub – chlwnsgurg/AmhorFati: 2023 암호분석경진대회 Solution by Team 암호르파티
2023 암호분석경진대회 Solution by Team 암호르파티. Contribute to chlwnsgurg/AmhorFati development by creating an account on GitHub.
대회 결과
600만원 달다…
“암호분석경진대회 후기 (in Korean)”에 대한 87개의 응답
암호분석경진대회 후기 (in Korean)
https://biothrive.health/the-benefits-of-eating-late-summer-vegetables/
암호분석경진대회 후기 (in Korean)
https://cleaneng.pt/2014/12/02/vc_rowvc_column-width12image_with_animation-image_url399-animationfade-in-img_link_target_selfvc_columnvc_column-width12vc_column_text-the-participation-of-clea/
암호분석경진대회 후기 (in Korean)
http://7upman.com/hello-world/
암호분석경진대회 후기 (in Korean)
https://famigliamazzarrini.it/nuovo-sito-online/
암호분석경진대회 후기 (in Korean)
https://www.chichijima-plants.website/2023/06/22/hello-world/
암호분석경진대회 후기 (in Korean)
http://vovinamcanada.com/widget_areas/
암호분석경진대회 후기 (in Korean)
https://asaintnicolas.com/media/la-vocation-de-la-femme/
암호분석경진대회 후기 (in Korean)
https://www.rnbgrupp.ee/logo/
암호분석경진대회 후기 (in Korean)
https://academy-piano.com/blog/生徒さん達のご紹介🎹-ご褒美シールで楽しくレ/
암호분석경진대회 후기 (in Korean)
https://www.functionalcranialrelease.com/dr-john-featured-on-pain-revealed-documentary/
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