Contest Style

      Jeopardy-style Online CTF, Teams can play the CTF remotely via Internet

      Suggest 4-8 players per team

Challenge Categories

      Include Web Pentest, binary vulnerability discovery and exploitation, crypto, reverse engineering, PPC etc.

      There are style difference among the contests of the XCTF League due to the technical advantages of the organizing teams

Score and Ranking

      Challenge solving via offline analysis or online interaction to overcome the technical challenge and get the flag, submit the correct flag to get the corresponding points

      Organizer can set bonus points for the first teams who solved the challenge, but the bonus points cannot exceed the 10% of the base points

      Jeopardy-style Online CTF ranks according to the team total points, if some teams get the same points, then rank them according to the last scored time, the first teams get the same score earlier rank higher than other teams

Contest Style

      Offline Attack and Defense Mode CTF organized by the host

      No more than four players per team

Challenge Categories

      The related technical challenges include but not limited to: Web Pentest and Defense; Binary service vulnerability discovery, exploitation and patch; system protection; attack analysis, etc.

      The format: teams penetrate against the same target environment and/or attack/defense among the teams

      There are style difference among the contests of the XCTF League due to the technical advantages of the organizing teams

Score and Ranking

      Teams get/loose score according to the attack and defense operation results, and rank by the final score.

       The detailed scoring and ranking rules will be designed by the organizer of the CTF contest, confirmed by the technical committee of XCTF League, XCTF League encourages that each contest has its own characteristic.

Contest Style

      Offline Attack and Defense Mode CTF organized by the overall host

      No more than four players per team

Challenge Categories

      The related technical challenges include but not limited to: Web Pentest and Defense; Binary service vulnerability discovery, exploitation and patch; system protection; attack analysis, etc.

      The format: attack/defense among the teams

Score and Ranking

      Teams get/loose score according to the attack and defense operation results, and rank by the final score.

      The detailed scoring and ranking rules will be designed by the organizer of the CTF contest, confirmed by the technical committee of XCTF League.

League Ranking and Finals qualified Rule

      Teams get League Ranking Point E_rating by playing each contest, the calculation formula of E_rating adopts the one used by CTFTIME.

•        weight is an subjective per-event value, depends on tasks and organization level, participated teams
•        total_teams is a number of teams got >0 points in particular event
•        best_points is a number of points got by the winner of particular event
•        team_place is a final place got by the team in particular event
•        team_points is a number of points got by the team in particular event

Directly Qualified to League Finals via Contests

       For the contest that has both the online Quals and offline Finals plus the total weights exceed 60, the Champion Team will be directly qualified to the League Finals (If the Champion Team has qualified via other contests, then the team in second place will be qualified instead, and if the Champion/2nd place team has both qualified via other contests, then the team in third place will be qualified instead.) There will be M teams will be directly qualified to League Finals.

Qualified to League Finals via League Ranking

      XCTF League will count the League Ranking according to the score and ranks of each contest including online quals and offline finals, by choosing K contests with the most E_rating for each team (K=4 for 2nd Edition of XCTF League), then accumulates the E_rating points of K contests, to get the League Ranking. After each combing contests finished, XCTF League will choose Top N Domestic (China, including China mainland, Taiwan/HongKong/Macao Regions) teams and Top P Internationals teams, and assure that the total teams to League Finals T = M + N + P. (T will be 12 to 16 depending on the budget).

XCTF technology rule detail

Special Training Camp

      encourage the participants of special training camp to join the famous CTF teams of China, playing the international CTF contests.

Camp Enrollment

      The 4 members from top 3 Domestic Teams in the League Finals, eight outstanding players chosen by the XCTF League Technical Committee from the teams to League Finals, no more than eight core members of the organizing teams of the League Finals.

Camp Date and Location

      Planned: Beijing or Nanjing, July 2016, depending on the budget of XCTF League.