fernet-toolkit 1.0.0

A CLI tool to encrypt/decrypt using keys/passwords based on Fernet.

Fernet Toolkit

A CLI tool to encrypt/decrypt using keys/passwords based on Fernet.

Features

• Encrypt/Decrypt a single file or a directory.
• Use a key or a password (Argon2/PBKDF2).
• Only encrypt files of specified type.
• Doesn't require configuration. The work factor for key derivation is calculated from current year using Moore's Law.

Installation

git clone https://github.com/60x20/Fernet-Toolkit.git
cd Fernet-Toolkit
uv tool install .

Usage

Use key

f-encrypt -r "./input" -o "./"
f-decrypt -r "./encrypted" -o "./" -k "./key.key"

Use password

f-encrypt -r "./input" -o "./" --use-password
f-decrypt -r "./encrypted" -o "./" --use-password

Options

Encrypt Options

Short	Long	Default	Description
-h	--help		show this help message and exit
-o	--outdir	None	output directory
	--file-type	text	Only encrypt files of specified type.
-v	--verbose		Print more information.
-r	--rootdir	None	input directory
-f	--file	None	input file
-k	--path-to-key	None	Encrypt using a key stored at the given path.
	--use-password		Encrypt using a KDF.
	--KDF	Argon2	which KDF to use

Decrypt Options

Short	Long	Default	Description
-h	--help		show this help message and exit
-r	--rootdir	None	input directory
-o	--outdir	None	output directory
-v	--verbose		Print more information.
-k	--path-to-key	None	Decrypt using a key stored at the given path.
	--use-password		Decrypt using a KDF.

Known Bugs

• Outputting into input directory could cause the ciphertext to be re-encrypted. (especially with --file-type any)