decryptor

def encrypt_data(key, data): # Generate a random 128-bit IV. iv = os.urandom(16) # Create a new AES-CBC cipher object. cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend()) encryptor = cipher.en…

def encrypt_data(key, data): # Generate a random 128-bit IV. iv = os.urandom(16) # Create a new AES-CBC cipher object. cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend()) encryptor = cipher.en…

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) secure_sock = context.wrap_socket(sock, server_side=True) # Bind and listen for incoming connections secure_sock.bind(('localhost', 443)) secure_sock.listen(5) # Accept the connecti…

2. **Re-encrypt Data:** - Re-encrypt the data using the new key. 3. **Update Key Storage:** - Update your key storage to reflect the new key size. ### Example Migration ```python def decrypt_data(encrypted_data, key, key_size=256)…

encrypted_data = encryptor.update(padded_data) + encryptor.finalize() return encrypted_data # Function to decrypt data def decrypt_data(encrypted_data, key, iv): cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=defau…

decrypted_padded_data = decryptor.update(encrypted_data) + decryptor.finalize() decrypted_data = unpad_data(decrypted_padded_data) return decrypted_data # Example usage password = b'my_strong_password' salt = os.urandom(16) iv …

encrypted_data = encryptor.update(padded_data) + encryptor.finalize() return iv + encrypted_data def decrypt_data(key, encrypted_data): # Extract the IV from the beginning of the encrypted data. iv = encrypted_data[:16] …

iv = os.urandom(16) # 128-bit IV # Create a cipher context cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend()) # Pad the data padder = padding.PKCS7(128).padder() padded_data = padde…

encryptor = cipher.encryptor() # Pad the data to a multiple of the block size. padder = padding.PKCS7(128).padder() padded_data = padder.update(data) + padder.finalize() # Encrypt the data. encrypted_data = encrypt…

) key = kdf.derive(password) iv = os.urandom(16) # 128 bits return key, iv # Encrypt data def encrypt_data(key: bytes, iv: bytes, data: bytes) -> bytes: cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=defau…

return iv + encrypted_data # Generate a 256-bit (32-byte) key. key = os.urandom(32) # Sample data to encrypt. data = b'This is some secret data' # Encrypt the data. encrypted_data = encrypt_data(key, data) print(f"Encrypted Data: {en…

cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend()) decryptor = cipher.decryptor() # Decrypt the data. decrypted_padded_data = decryptor.update(encrypted_data) + decryptor.finalize() # Unpad …

encryptor = cipher.encryptor() with open(file_path, 'rb') as f: plaintext = f.read() ciphertext = encryptor.update(plaintext) + encryptor.finalize() with open(file_path + '.enc', 'wb') as f: f.…

return iv + encrypted_data def generate_key(): # Generate a 256-bit (32-byte) key. return os.urandom(32) # Generate a secure key for AES-256 key = generate_key() # Sample data to encrypt data = b'Hello, World!' # Encrypt the…

unpadder = padding.PKCS7(algorithms.AES.block_size).unpadder() data = unpadder.update(padded_data) + unpadder.finalize() return data.decode() def encrypt_data(data, password): """Encrypt data using AES.""" salt = os.ura…

cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend()) decryptor = cipher.decryptor() # Decrypt the data. decrypted_padded_data = decryptor.update(encrypted_data) + decryptor.finalize() # Unpad …

from cryptography.hazmat.backends import default_backend from cryptography.exceptions import InvalidTag import os import base64 import redis # Configuration KEY_SIZE = 32 # 256 bits IV_SIZE = 12 # 96 bits for GCM TAG_SIZE = 16 # 128 bit…

plaintext = decryptor.update(ciphertext) + decryptor.finalize() return plaintext # Redis client setup r = redis.Redis(host='localhost', port=6379, db=0) # Example usage password = b'secret_password' salt = os.urandom(16) key = gen…

backend=default_backend() ) key = kdf.derive(password.encode()) iv = urandom(16) return key, iv, salt def encrypt_data(data, key, iv): cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend(…