TJCTF 2026


CTF Archive.

TJCTF 2026

TJCTF is an annual jeopardy-style CTF hosted by the TJ Computer Security Club (TJCSC) of Thomas Jefferson High School for Science and Technology.

Original Date: Fri, 15 May 2026, 16:00 UTC — Sun, 17 May 2026, 16:00 UTC
Original URL: https://tjctf.org/
CTFtime Entry: TJCTF 2026
Organizing Team: tjcsc



Challenges

Crypto challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Forensics challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Crypto challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Misc challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

A friendly program asks for the size of your username and then your username.

Author: TJCTF 2026

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Misc challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

"I'm trying to test my FSOP prevention mechanism so I can share it with my coworkers who know nothing about security. It should be foolproof right?"

Author: TJCTF 2026

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Crypto challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Crypto challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Forensics challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Rev challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Rev challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Forensics challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

Crypto challenge from TJCTF 2025.

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: TJCSC

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

30-Day Scoreboard:

This scoreboard reflects solves for challenges in this module after the module launched in this dojo.

7-Day | 30-Day | All-Time

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