repetitions (picoCTF 19)

Challenge Author: THEONESTE BYAGUTANGAZA

Category: General Skills

Difficulty: Easy

Description

Can you make sense of this file?

Process / Notes

  1. wget the file
  2. file enc_flag - ASCII text
  3. strings enc_flag - almost looks like an ssh key
  4. One of the tags is ‘base64’, pipe this into base64 -d
  5. Twice?
  6. Let’s skip to 4 times
  7. 6 Times!!!
  8. Got the flag

4 minutes 27 seconds to complete

Hints

  1. Multiple decoding is always good

Core Lessons

  1. Recognizing base64 text
  2. Understanding the need to repeat decoding processes multiple times if it seems appropriate