Hacking Bridge-Hand Generation Software

Interesting: Roughly three weeks later, there is a operation program available to crack ACBL hand records. Given three consecutive boards, all the remaining boards for that session can be determined. The program can be easily parallelized. This analysis can be finished while sessions are still running this would permit the following type of attack: A confederate watch boards 1-3 of…

Interesting:

Roughly three weeks later, there is a operation program available to crack ACBL hand records.

  • Given three consecutive boards, all the remaining boards for that session can be determined.
  • The program can be easily parallelized. This analysis can be finished while sessions are still running

this would permit the following type of attack:

  • A confederate watch boards 1-3 of the USBF team trials on vugraph
  • The confederate uses Amazon web services to crack all the rest of the boards for that session
  • The confederate texts the hands to a players smart phone
  • The player hits the head, whips out his smart phone, and ...

from https://www.schneier.com/blog/