Chaeslib 1.0.1

A minimalistic and simple AES256-GCM+ChaCha20_Poly1305 library. For encrypting data using both 'AES256-GCM' & 'ChaCha20_Poly1305'.

Chaeslib

A pypi package that uses AES-GCM and ChaCha20_Poly1305 encryption to encrypt and decrypt your data.

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About

This library was made possible beause of my project called Chaes. It uses the same functinality here to encrypt and decrypt messages and files. I wanted that project to be more shareable so thus this lib/package was born. (I am still kinda new to making packages).

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Installation

virtualenv chaENV
source chaENV/bin/activate
pip install Chaeslib

If you don't have virtualenv you can install it via pip. "pip install virtualenv".

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Example | Documentation

This very basic example is what I do to make things work and showcase how to use things. (Copy and pasting this code will give you something that works for encrypting messages.) If you replace the way to get a message with opening a file and getting bytes, then it can work for files as well. (It is up to you to optimize for large files.)

from Chaeslib import Chaes
import base64



if __name__ == '__main__':
    # flag 1: decrypt  |  flag 2: encrypt
    flag = 2
    if flag == 1:
        chaes = Chaes()
        dKey = input("Encryption Key: ")
        dMessage = input("Encrypted Message: ")
        enc_message = chaes.hex_to_base64(dMessage)

        #Decode message and get salt and key after splitting on ":" to make a list.
        json_input = base64.b64decode(enc_message)
        key_and_salt = dKey.split(":")
        salt_1 = key_and_salt[1]
        key_0 = key_and_salt[0]

        salt = base64.b64decode(salt_1)
        key = base64.b64decode(key_0)

        cha_aes_crypt = chaes.decrypt(key, json_input, salt)
        chaes.clear()
        input(f'Here is your encrypted message: {cha_aes_crypt.decode()}\n\nPress "enter" to contine...')
        chaes.clear()


    if flag == 2:
        chaes = Chaes()
        message = input("Message to encrypt: ").encode()
        key_data = input("Data for key gen: ").encode()

        chaes.clear()
        eKey = chaes.keygen(key_data) #Returns bytes and will return "None" if what's provided is less than 100 characters.

        if not eKey:
            exit()

        save_me = base64.b64encode(eKey)
        bSalt = base64.b64encode(chaes.salt)
        master_key = f"{save_me.decode()}:{bSalt.decode()}"

        input(f'Save this key so you can decrypt later: {master_key}\n\nPress "enter" to contine...')
        chaes.clear()
        enc_msg = chaes.encrypt(message, eKey)
        print(enc_msg)

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• chaes.clear()

Clears your terminal

• chaes.encrypt(message, key)

Encrypts bytes/data.

• message is the bytes/data you want to encrypt.

• key is the key that was generated by chaes.keygen()

• chaes.decrypt(key, json_input, salt)

Decrypts your encrypted data/message.

• key is the key that was used to encrypt your data.

• json_input is the base64 decoed json data that has your encrypted data.

• salt is the other half of the "key" that was used to encrypt your data.

• chaes.keygen(key_data)

Generates a "key" to be used to encrypt your data. (uses argon2id)

• key_data is just a bunch of keyboard mashing and spamming to get a bunch of garble to make a key. (You could use Genter to make a key if you'd like.)

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