[basics]_crypto

[basics] crypto

Can you make it through all of the encodings?

binary.txt

Summary

• Cryptography

Tools

• Cryptii

Description

• Play it with Cryptii.
  • 
    • Decode binary.txt as ASCII.
    • Encoding that there are A-Z, a-z, 0-9, and sometimes / and + is Base64.
  • 
    • Base64-decode it.
    • It looks like Caesar cipher.
  • 
    • Shift a to k (10). Caesar cipher.
    • substitution cipher ready.
  • 
    • Substitution cipher.
    • First word looks like congratulations.
    • vtsoid is utflag.
• utflag{n0w_th4ts_wh4t_i_c4ll_crypt0}