init

example.py

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+from crypto_lib import *
+
+# Example usage
+if __name__ == "__main__":
+	generate_new_keys = input('Generate new keys? (y/n): ')
+	if generate_new_keys == 'y':
+		# 1. Generate keys
+		print("1. Generating key pair...\n")
+		private_key, public_key = CryptoLib.generate_keys(2048)
+
+		# 2. Save keys to files
+		print("2. Saving keys to files...\n")
+		CryptoLib.save_private_key(private_key, "private_key.pem")
+		CryptoLib.save_public_key(public_key, "public_key.pem")
+
+		encrypted = ''
+	else:
+		encrypted = CryptoLib.base64_to_bytes(input('Enter message (if exist): '))
+
+	# 6. Load keys from files
+	print("3. Loading keys from files...\n")
+	loaded_private_key = CryptoLib.load_private_key("private_key.pem")
+	loaded_public_key = CryptoLib.load_public_key("public_key.pem")
+
+	# 3. Convert public key to string and back
+	print("4. Loaded keys:.")
+	private_key_str = CryptoLib.public_key_to_string(loaded_private_key)
+	public_key_str = CryptoLib.public_key_to_string(loaded_public_key)
+	print(f'Private key as string: {private_key_str[:50]}...')
+	print(f'Public key as string: {public_key_str[:50]}...\n')
+
+	print(f'5. Convert public key from string...\n')
+	restored_public_key = CryptoLib.public_key_from_string(public_key_str)
+
+	if not encrypted:
+		# 6. Encrypt data
+		print("6. Encrypting data...")
+		message = "Hello, this is a secret message from Python!"
+		print(f'Original message: {message}')
+		encrypted = CryptoLib.encrypt(loaded_public_key, message)
+		print(f'Encrypted (base64): {CryptoLib.bytes_to_base64(encrypted)}')
+		print(f"Encrypted data size: {len(encrypted)} bytes\n")
+
+	# 7. Decrypt data
+	decrypted_data = CryptoLib.decrypt(loaded_private_key, encrypted)
+	decrypted_message = decrypted_data.decode('utf-8')
+	print(f"7. Decrypted message: {decrypted_message}")