Ciphering CLI Tool is an encryption tool that may encode and decode a text by 3 substitution ciphers.

Use the node package manager to install Ciphering CLI Tool.

npm install

Use the node package manager to test Ciphering CLI Tool.

npm run test

CLI tool should accept 3 options (short alias and full name):

1. -c, --config: config for ciphers Config is a string with pattern {XY(-)}n, where:

• X is a cipher mark:
  • C is for Caesar cipher (with shift 1)
  • A is for Atbash cipher
  • R is for ROT-8 cipher
• Y is flag of encoding or decoding (mandatory for Caesar cipher and ROT-8 cipher and should not be passed Atbash cipher)
  • 1 is for encoding
  • 0 is for decoding

2. -i, --input: a path to input file
3. -o, --output: a path to output file

For example, config "C1-C1-R0-A" means "encode by Caesar cipher => encode by Caesar cipher => decode by ROT-8 => use Atbash"

$ node my_ciphering_cli -c "C1-C1-R0-A" -i "input.txt" -o "output.txt"

input.txt This is secret. Message about "_" symbol!

output.txt Myxn xn nbdobm. Tbnnfzb ferlm "_" nhteru!

👤 Pavel Hancharou

• Discord: Pavel Hancharou(@pavelhancharow)