What is it? @.@

Here is the place where I record some tactics about wargame, systems, and other security issues.

2012-10-28

Bright Shadows - Crypto 1: "Easy starter!"

Description:

The decrypted text will tell you the solution.
tedespqtcdezypozyzeqzcrpeesleespalddhzcotdlsopqufvwrcmodprq
________________  _________
|enter solution| |Check it!|
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄   ̄ ̄ ̄ ̄ ̄
Solution:
  1. Obviously, this challenge use Caesar cipher to encrypt the text.
  2. Use an online tool like below to decrypt it :
    Tool: http://planetcalc.com/1434/
  3. There are 26 results and we should choose the appropriate one.
    ROT15 : itsthefirstonedonotforgetthatthepasswordisahdefjuklgrbdsegf
  4. After inserting the white space, the full sentence will be:
    its the first one do not forget that the password is ahdefjuklgrbdsegf
  5. Enter the solution and check it! Well done!

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