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47 lines
1.6 KiB
Python
47 lines
1.6 KiB
Python
"""
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This file is part of IDRB Project.
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IDRB Project is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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IDRB Project is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with IDRB Project. If not, see <https://www.gnu.org/licenses/>.
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"""
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from Crypto.Cipher import AES
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from Crypto.Protocol.KDF import scrypt
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from Crypto.Random import get_random_bytes
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def pad_message(message_bytes):
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block_size = AES.block_size
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padding_length = block_size - (len(message_bytes) % block_size)
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padding = bytes([padding_length] * padding_length)
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return message_bytes + padding
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def encrypt_data(message_bytes, password):
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# Derive a key from the password
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salt = get_random_bytes(50)
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key = scrypt(password, salt, key_len=32, N=2 ** 14, r=8, p=1)
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# Generate an IV (Initialization Vector)
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iv = get_random_bytes(AES.block_size)
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# Pad the message
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padded_message = pad_message(message_bytes)
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# Initialize AES cipher in CBC mode
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cipher = AES.new(key, AES.MODE_CBC, iv)
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# Encrypt the padded message
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encrypted_message = cipher.encrypt(padded_message)
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# Return the encrypted message, salt, and IV (for decryption)
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return encrypted_message, salt, iv
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