BCTF is a Jeopardy-style Online Capture The Flag Competition presented by blue-lotus. The game is opened to all participants around the world, and with prizes. Teams can compete from any location. No restriction on the number of participants of any team.
BCTF 2018 is also the first qualifying contest of 5th Edition of XCTF International League (http://www.xctf.org.cn/). The Champion will be invited to XCTF Finals 2019 (the location/date subject to change, qualified teams will be informed when the Finals location/date is confirmed). Other teams can also get the cumulative points to compete for other slots to the XCTF Finals 2018.
HITB-XCTF Dubai CTF will also use part of the challenges of BCTF 2018, and the on-site teams can both compete for the HITB-XCTF Dubai CTF awards and online BCTF 2018 awards. But only on-site teams can get the awards of HITB-XCTF Dubai CTF.
BCTF 2018 Online CTF 36 hours: From 27th November 10:00GST (UTC + 4) - 28th November 22:00GST (UTC + 4) i.e. 27th November 14:00 Beijing Time – 29th November 02:00 Beijing Time
Teams breaking rules may be penalized or excluded from the competition.
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It is not allowed for teams with independent accounts to cooperate, or share any flag/hints.
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It is not allowed to attack the competition infrastructure. If flaws in the infrastructure are found, please report to us.
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It is not allowed to sabotage or in any way hinder the progress of other competing teams. This includes attempting to destroy a challenge after you have completed it.
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It is not allowed to generate large amounts of traffic. None of the challenges can be solved by running automated scanners.
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It is not allowed to brute-force challenge flags/keys against the scoring site.
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For placing teams to receive prizes, they must submit a full nand detailed writeup of each challenge, explaining how it was solved.
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Organizers may rearrange/modify contest problems, proceedings, and rules.