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Description:

litecrypt 0.2.7

Overview
So I made this library for personal use to secure some of my personal files & hit the connect from time to time.
It provides support for both fast and highly computationally intensive encryption. Also, it includes a database integration system which facilitates the restoration of files to their original state if necessary, and a GUI is also included to obviate the need to write code.

The docs can be accessed here, I made it so I don't forget wtf I was yapping about a couple of months ago, probably not so useful for visitors.
Installation
pip install litecrypt

Usage
from litecrypt import CryptFile, gen_key

key = gen_key()
CryptFile('file_of_any.type', key).encrypt()
# the file is now called ==> 'file_of_any.type.crypt

The encryption process is blazingly fast by default, to make it computationally intensive
Do this
from litecrypt import CryptFile, gen_key

key = gen_key()
CryptFile('anyfile.txt',
key=key,
intensive_compute=True,
iteration_rounds=10000
).encrypt()

Running intensive_compute with no iteration_rounds sets the rounds to 50 (minimum) by default

To decrypt simply run:
from litecrypt import CryptFile

key = 'THE_KEY_YOU_USED'
CryptFile('anyfile.txt.crypt',key=key).decrypt()

For messages:
from litecrypt import Crypt, gen_key

key = gen_key()
encrypted = Crypt('any message', key).encrypt() # can also be a bytes message
print(encrypted) # Check the return value

Details
Algorithm: AES-256 CBC
Layout:
+-------------+ +--------+ +------------+ +-------------+ +-------------+ +------------------+
| HMAC | →| IV | →| Salt | →| Pepper | →| Iterations | →| KDF ID | →
+-------------+ +--------+ +------------+ +-------------+ +-------------+ +------------------+
+------------------+
| Ciphertext ...
+------------------+

AES and HMAC keys, each 32 bytes, are derived from the main key (gen_key()) using the chosen KDF with SHA256. Iterations range from 50 to 100,000 the higher they go the more time it takes to compute, that's 4 bytes. IV that's 16, Salt, and Pepper are also 16 byte random values, both mixed with the KDF. The ciphertext size varies, with the crypto process employing PKCS7 padding.
Supported Databases
Currently, supports MySQL, PostgresSQL and SQLite.
Check the docs for more info.
GUI

Here's how it works
https://github.com/AshGw/litecrypt/assets/126174609/190b6ab8-3f8a-4656-9525-dbaf5e56db5e

License
Litecrypt is open-source project & licensed under the MIT License.