Crypto Aes GCM

CryptoAesGcm package is a Wrapper for Cypto.Aes package and makes encryption and decryption easier.

Links to understand basics of AES and GCM algorithms:

1. https://acodez.in/data-encryption-algorithms/
2. https://www.tutorialspoint.com/cryptography/block_cipher.html
3. https://www.tutorialspoint.com/cryptography/advanced_encryption_standard.html.

what you can do:

• Generate Encryption Key
• Using Encryption Key, Encrypt string and get O/P in json/concat String format
• Decrypt already encrypted string back to plain text format

Installation

pip install CryptoAesGcm

Usage

Example - Generate Key :

>>> from CryptoAesGcm import AES_GCM_CreateSaveKey

# pass location where you want key to saved at 

>>> print(AES_GCM_CreateSaveKey(key_location,No_bytes=32))  # by default No_bytes = 32
True

Example - Encrypt text:

>>> from CryptoAesGcm import AES_GCM_EncryptData

# for ret_type = "json"
>>> ret = AES_GCM_EncryptData("Random text data","key.bin",ret_type = "json")  # by default ret_type =  "concat")
>>> print(ret)
(True, '{"nonce": "plgyFSJ3+DCQdsVT/T+Nsg==", "ciphertext": "1iMBFpaJoDmuT3LgtYsbz79MPYRMbQ==", "tag": "T3Ivn95YHSK8Z25VXT0+zQ=="}')

# for  default ret_type = "concat"
>>> ret = AES_GCM_EncryptData("Random text data","key.bin")
>>> print(ret)
(True, '1f8GuiS+Tn2X1rKKryDth0B96RkLBFl+vSX2TfqdW6/yTjgOVJDKF2RmyfQO5q5YI2IhK/ru')

Example - Decrypt text:

>>> from CryptoAesGcm import AES_GCM_DecryptData

# you can pass both concatinated and json format as input 
# function will itself find the best way to decrypt and return the O/P
>>> ret = AES_GCM_DecryptData("encrypted text","key.bin")
>>> print(ret)
(True, 'Random text data')

Note: Function returns tuple if code fails to execute 1st element will be False else it will be True.