Pysecu

Small Python script for cryptography (like OpenSSL) based on Pycryptodome.

Installation

1. Clone the repo

$ git clone https://github.com/Owpac/pysecu

2. Create venv and install requirements

$ python3 -m venv venv
$ source venv/bin/activate
$ pip install -r requirements.txt

3. Use it !

How it work

To see help and examples:

$ python3 pysecu.py -h

1- Hash a file and print the result:

$ python3 pysecu.py -i [/path/to/the/file.txt]

2- Hash a file and save the result in a file:

$ python3 pysecu.py -i [/path/to/the/file.txt] -o [/path/to/the/output.txt]

3- Generate private and public RSA keys:

$ python3 pysecu.py -rsa -o [/path/to/the/key]

This command will generate key.pub and key.priv

$ python3 pysecu.py -rsa -s {1024 | 2048 | 4096} -p [passphrase] -o [/path/to/the/key]

You can change the number of bits with -b option and add a passphrase with -p option.

4- Encrypt a file using public key:

$ python3 pysecu.py -i [/path/to/the/file.txt] -pkey [/path/to/the/key.pub] -p [passphrase] -o [/path/to/the/file.bin]

5- Decrypt a file using private key:

$ python3 pysecu.py -i [/path/to/the/file.bin] -pkey [/path/to/the/key.priv] -p [passphrase] -o [/path/to/the/file.txt]

6- Sign a file and verify its signature:

$ python3 pysecu.py -i [/path/to/the/file.txt] -s [/path/to/the/mykey.priv] -v [/path/to/the/mykey.pub]

If your keys had a passphrase, don't forget to add -p option :

$ python3 pysecu.py -i [/path/to/the/file.txt] -s [/path/to/the/mykey.priv] -v [/path/to/the/mykey.pub] -p [passphrase]