python code for aes encryption and decryption

Publicado em: 29 Fevereiro 2024
no canal de: CodeWise

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aes (advanced encryption standard) is a widely used symmetric encryption algorithm. in this tutorial, we'll explore how to perform aes encryption and decryption in python using the cryptography library. the cryptography library provides a high-level interface for common cryptographic operations, making it easy to use and secure.
before you begin, make sure you have python installed on your machine. you can install the cryptography library using the following command:
let's start by creating a python script for aes encryption.
in this example, we generate a random initialization vector (iv), pad the plaintext using pkcs7 padding, create an aes cipher object with the specified key, and encrypt the padded plaintext using cipher feedback (cfb) mode. the result is a base64-encoded string containing the iv and ciphertext.
now, let's create a python script for aes decryption.
in this example, we decode the base64-encoded input, extract the iv and ciphertext, create an aes cipher object with the specified key and iv, and decrypt the ciphertext using cipher feedback (cfb) mode. finally, we unpad the plaintext using pkcs7 un

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