Delete data_security.py

data_security.py

@@ -1,180 +0,0 @@
-import os
-import logging
-from cryptography.hazmat.primitives import hashes
-from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
-from cryptography.hazmat.primitives.asymmetric import rsa
-from cryptography.hazmat.primitives import serialization
-from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
-from cryptography.hazmat.backends import default_backend
-from cryptography.hazmat.primitives import padding
-from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
-import base64
-
-# Configure logging
-logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s")
-
-# Secure key derivation using PBKDF2
-def derive_key(password: str, salt: bytes) -> bytes:
-    try:
-        kdf = PBKDF2HMAC(
-            algorithm=hashes.SHA256(),
-            length=32,
-            salt=salt,
-            iterations=100000,
-            backend=default_backend()
-        )
-        return kdf.derive(password.encode())
-    except Exception as e:
-        logging.error(f"Key derivation failed: {e}")
-        raise
-
-# Generate a strong RSA public-private key pair
-def generate_rsa_keys():
-    try:
-        private_key = rsa.generate_private_key(
-            public_exponent=65537,
-            key_size=2048,
-            backend=default_backend()
-        )
-        public_key = private_key.public_key()
-
-        private_pem = private_key.private_bytes(
-            encoding=serialization.Encoding.PEM,
-            format=serialization.PrivateFormat.TraditionalOpenSSL,
-            encryption_algorithm=serialization.NoEncryption()
-        )
-
-        public_pem = public_key.public_bytes(
-            encoding=serialization.Encoding.PEM,
-            format=serialization.PublicFormat.SubjectPublicKeyInfo
-        )
-
-        return private_pem, public_pem
-    except Exception as e:
-        logging.error(f"RSA key generation failed: {e}")
-        raise
-
-# Encrypt data using AES
-def aes_encrypt(data: bytes, key: bytes) -> bytes:
-    try:
-        iv = os.urandom(16)
-        cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend())
-        encryptor = cipher.encryptor()
-        
-        padder = padding.PKCS7(algorithms.AES.block_size).padder()
-        padded_data = padder.update(data) + padder.finalize()
-
-        encrypted_data = encryptor.update(padded_data) + encryptor.finalize()
-        return iv + encrypted_data
-    except Exception as e:
-        logging.error(f"AES encryption failed: {e}")
-        raise
-
-# Decrypt data using AES
-def aes_decrypt(encrypted_data: bytes, key: bytes) -> bytes:
-    try:
-        iv = encrypted_data[:16]
-        cipher_data = encrypted_data[16:]
-
-        cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend())
-        decryptor = cipher.decryptor()
-        
-        decrypted_data = decryptor.update(cipher_data) + decryptor.finalize()
-        
-        unpadder = padding.PKCS7(algorithms.AES.block_size).unpadder()
-        unpadded_data = unpadder.update(decrypted_data) + unpadder.finalize()
-
-        return unpadded_data
-    except Exception as e:
-        logging.error(f"AES decryption failed: {e}")
-        raise
-
-# RSA encryption and decryption
-def rsa_encrypt(public_key: bytes, data: bytes) -> bytes:
-    try:
-        public_key_obj = serialization.load_pem_public_key(public_key, backend=default_backend())
-        encrypted_data = public_key_obj.encrypt(
-            data,
-            rsa.OAEP(
-                mgf=rsa.MGF1(algorithm=hashes.SHA256()),
-                algorithm=hashes.SHA256(),
-                label=None
-            )
-        )
-        return encrypted_data
-    except Exception as e:
-        logging.error(f"RSA encryption failed: {e}")
-        raise
-
-def rsa_decrypt(private_key: bytes, encrypted_data: bytes) -> bytes:
-    try:
-        private_key_obj = serialization.load_pem_private_key(private_key, password=None, backend=default_backend())
-        decrypted_data = private_key_obj.decrypt(
-            encrypted_data,
-            rsa.OAEP(
-                mgf=rsa.MGF1(algorithm=hashes.SHA256()),
-                algorithm=hashes.SHA256(),
-                label=None
-            )
-        )
-        return decrypted_data
-    except Exception as e:
-        logging.error(f"RSA decryption failed: {e}")
-        raise
-
-# Securely store and retrieve sensitive information
-def store_encrypted_data(file_path: str, data: bytes, encryption_key: bytes):
-    try:
-        encrypted_data = aes_encrypt(data, encryption_key)
-        with open(file_path, 'wb') as file:
-            file.write(encrypted_data)
-        logging.info(f"Data securely stored at {file_path}")
-    except Exception as e:
-        logging.error(f"Failed to store encrypted data: {e}")
-        raise
-
-def retrieve_encrypted_data(file_path: str, encryption_key: bytes) -> bytes:
-    try:
-        with open(file_path, 'rb') as file:
-            encrypted_data = file.read()
-        return aes_decrypt(encrypted_data, encryption_key)
-    except Exception as e:
-        logging.error(f"Failed to retrieve encrypted data: {e}")
-        raise
-
-# Ensure strong random number generation for cryptographic operations
-def secure_random_bytes(size: int) -> bytes:
-    try:
-        return os.urandom(size)
-    except Exception as e:
-        logging.error(f"Random byte generation failed: {e}")
-        raise
-
-# Salting passwords for extra protection
-def salt_password(password: str) -> tuple:
-    try:
-        salt = secure_random_bytes(16)
-        salted_password = derive_key(password, salt)
-        return salted_password, salt
-    except Exception as e:
-        logging.error(f"Password salting failed: {e}")
-        raise
-
-# Key storage for private key management (secure storage)
-def store_rsa_private_key(private_key: bytes, file_path: str):
-    try:
-        with open(file_path, 'wb') as file:
-            file.write(private_key)
-        logging.info(f"RSA private key securely stored at {file_path}")
-    except Exception as e:
-        logging.error(f"Failed to store RSA private key: {e}")
-        raise
-
-def retrieve_rsa_private_key(file_path: str) -> bytes:
-    try:
-        with open(file_path, 'rb') as file:
-            private_key = file.read()
-        return private_key
-    except Exception as e:
-        logging.error(f"Failed to retrieve RSA private key: {e}")
-        raise