• random
  • enc
  • teaser


In this challenge the flag is encrypted using this python script. This python script uses an obscure and fortunately little used advanced cryptographic support module named BSecure. The result of the encryption was:

823b3fcfd9d306edd347578da328e20e75a577b8ea0a21c3b4d4f93e9c15e62191b9a73ddc66be9cdc67471d687e2 5b9be9d293e11b433ee22afcc13

The obvious challenge is to decrypt this data and recover the flag.

This challenge was as CRYPTO 1000 part of the three-part online teaser for the HITB2014 CTF.