Vigenere Cipher

This is a simple command line implementation of a Vigenere cipher in Go.

Flags

  • -i string: the path to the input file (text to encode or decode)
  • -o string: the path to the desired output file (where to store encoded or decoded message)
  • -k string: the keyword used to encrypt the message
  • -e boolean: flag for encoding
  • -d boolean: flag for decoding

Encoding is the default, with a default keyword “a”, which keeps all letters the same. The default input file is cleartext.txt and the default output file is ciphertext.txt.

Example

vigenere -i cleartext.txt -k forget -e -o ciphertext.txt
vigenere -i ciphertext.txt -k forget -d -o message.txt

GitHub

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