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Python provides powerful libraries for implementing encryption, decryption, and hashing to secure data. The most widely used package is cryptography, which offers both symmetric and asymmetric encryption methods.
Symmetric Encryption with Fernet
Fernet ensures that data encrypted cannot be manipulated or read without the key.
Steps:
Install the library:
pip install cryptographyCopied!âś•CopyGenerate a key and encrypt/decrypt data:
from cryptography.fernet import Fernet# Generate keykey = Fernet.generate_key()fernet = Fernet(key)# Encryptmessage = "Secure message"encrypted = fernet.encrypt(message.encode())print("Encrypted:", encrypted)# Decryptdecrypted = fernet.decrypt(encrypted).decode()print("Decrypted:", decrypted)Copied!âś•CopyThis method uses the same key for encryption and decryption, making it fast but requiring secure key sharing.
Asymmetric Encryption with RSA
RSA uses a public key for encryption and a private key for decryption.
Steps:
Install PyCryptodome:
pip install pycryptodomeCopied!✕Copy Cryptography for Beginners: Full Python Course (SHA-256, AES, …
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