Crypto Classical Cipher

February 23, 2021 at 12:46 AM Edit on GitHub

Classical Cipher

Table of Contents

tags: Security Crypto

Caesar cipher

  • command : tr 
    echo 'Funny{MyfirstCTF}' | tr xyza-w a-z 
echo 'Fxqqb{MbiluvwCTF}' | tr  a-z xyza-w
  • brute force : https://planetcalc.com/1434/

Substitution cipher

online tool : quip quip

Transposition cipher

  • Rail fence cipher online tool : http://web.archive.org/web/20071104114600/http://www.simonsingh.net/The_Black_Chamber/railfence.html

Scytale cipher

  • online tool : https://www.dcode.fr/scytale-cipher

  • command : fold echo -n "ERTKSOOTCMCHYRAFYLIPL" | fold -w3