GCMlib 1.0.0

A minimalistic and simple encryption library. For encrypting data using AES GCM mode.

GCMlib - A minimalistic and simple encryption library. For encrypting data using AES GCM mode.

GCMlib allows you to encrypt and decrypt strings of text via AES in GCM mode with a password derived key. Your encrypted data/strings can only be decrypted using the aformentioned key. You can use this for a variety of things from securing passwords, encrypting HWIDs and files. Making AES encryption a little bit easier!

Updates

What has been updated as of | 12/15/22:

• Nothing yet, Just commited files and created this repo.

Installation

[Directly from here/this repo.]

[therealOri ~]$ pip install git+https://github.com/therealOri/GCMlib

or

[From Pypi.]

[therealOri ~]$ pip install GCMlib

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Code Examples

If you would like to make this look better/more presentable. Please by all means make a pull request xD. I'm not the best with making things look great.

It is important to know that all functions will take 2 values in BYTES. The data to encrypt and the key. Make sure the data passed to the functions are in that order. Data first then Key.

The making of the "key" takes in a password (that you can make using Genter). The key then gets used to encrypt your data.

from GCMlib import gcm


##---------Start---------##

#Encrypting
data = b'Hello World <3'
key_data = b'abcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcde'

eKey = gcm.keygen(key_data) #Returns bytes and will return "None" if what's provided is less than 100 characters.
save_me = base64.b64encode(eKey) #for saving eKey to decrypt later.

input(f'Save this key so you can decrypt later: {save_me}\n\nPress "enter" to contine...')
gcm.clear() #clears terminal or cmd/powershell window.

data_enc = gcm.stringE(data, eKey) #It is CRITICAL that you have the data you want to encrypt FIRST then the key.
gcm.clear()
print(data_enc) # Output is b64 encoded. --> eyJub25jZSI6ICJjQjhpWmc0MWhDWXBRVXdVdW53Q0pRPT0iLCAiaGVhZGVyIjogIlJXNWpjbmx3ZEdWa0lIVnphVzVuSUVkRFRXeHBZaTRnUkU4Z1RrOVVJRlJCVFZCRlVpQlhTVlJJTGlBZ2ZDQWdUV0ZrWlNCaWVTQjBhR1Z5WldGc1QzSnBJQ0I4SUNCaUoxeDRNVE5jZUdKaFhIaGpaVng0TVdWY2VHRTRYSGhsT1VOY2VHRmxKdz09IiwgImNpcGhlcnRleHQiOiAiZ2FDSjY4N2FGVjNMMEIyb01Ecz0iLCAidGFnIjogIkJBUjlmVzkzaWFESnUwckpSU2o3VEE9PSJ9



#Decrypting
data = 'eyJub25jZSI6ICJjQjhpWmc0MWhDWXBRVXdVdW53Q0pRPT0iLCAiaGVhZGVyIjogIlJXNWpjbmx3ZEdWa0lIVnphVzVuSUVkRFRXeHBZaTRnUkU4Z1RrOVVJRlJCVFZCRlVpQlhTVlJJTGlBZ2ZDQWdUV0ZrWlNCaWVTQjBhR1Z5WldGc1QzSnBJQ0I4SUNCaUoxeDRNVE5jZUdKaFhIaGpaVng0TVdWY2VHRTRYSGhsT1VOY2VHRmxKdz09IiwgImNpcGhlcnRleHQiOiAiZ2FDSjY4N2FGVjNMMEIyb01Ecz0iLCAidGFnIjogIkJBUjlmVzkzaWFESnUwckpSU2o3VEE9PSJ9'
b64_enc_key = input("base64 encoded bytes/key made with keygen(): ")
dKey = base64.b64decode(b64_enc_key)

str_dcr = gcm.stringD(data, dKey) #It is CRITICAL that you have the data you want to decrypt FIRST then the key.
gcm.clear()
print(str_dcr) # Output is "Hello World <3"

##---------End---------##

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Disclaimer

I am not liable or responsible for any data loss or destruction of any kind when using GCMlib. If you lose data and do not have backups then that is solely on you.

This disclaimer mainly comes from me noticing that not all files can be encrypted and decrypted without corruption, like video files like .mkv or zip files and archives for example. I haven't really found a way to do that safely yet. So remember to be careful of what you encrypt and make sure to have plenty of backups.

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