diff options
author | AL-LCL <alvin@alvinhavel.com> | 2023-05-19 11:01:49 +0200 |
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committer | AL-LCL <alvin@alvinhavel.com> | 2023-05-19 11:01:49 +0200 |
commit | 20dbeb2f38684c65ff0a4b99012c161295708e88 (patch) | |
tree | a5b8445f55da2fbbb92443b68e9d7354a290c598 /binary |
Diffstat (limited to 'binary')
-rw-r--r-- | binary/data_handling/recv_data.py | 26 | ||||
-rw-r--r-- | binary/data_handling/send_data.py | 13 | ||||
-rw-r--r-- | binary/encrypt_data.py | 26 |
3 files changed, 65 insertions, 0 deletions
diff --git a/binary/data_handling/recv_data.py b/binary/data_handling/recv_data.py new file mode 100644 index 0000000..a329532 --- /dev/null +++ b/binary/data_handling/recv_data.py @@ -0,0 +1,26 @@ +import pickle +import zlib + + +def recv_data(conn, settings, callback=None): + encryption, headersize = settings + mode = [True, 0, b''] + + while True: + client_msg = conn.recv(81920) + + if mode[0]: + mode[1] = int(client_msg[:headersize]) + mode[0] = False + + mode[2] += client_msg + + if len(mode[2])-headersize == mode[1]: + decrypted_msg = encryption.do_decrypt(mode[2][headersize:]) + decompressed_msg = zlib.decompress(decrypted_msg) + client_msg = pickle.loads(decompressed_msg) + + if callback: + callback(conn, client_msg) + + return client_msg
\ No newline at end of file diff --git a/binary/data_handling/send_data.py b/binary/data_handling/send_data.py new file mode 100644 index 0000000..4622fbb --- /dev/null +++ b/binary/data_handling/send_data.py @@ -0,0 +1,13 @@ +import pickle +import zlib + + +def send_data(conn, data, settings, extra_data={}): + encryption, encoding, headersize = settings + data.update(extra_data) + + pickled_msg = pickle.dumps(data) + compressed_msg = zlib.compress(pickled_msg, 5) + encrypted_msg = encryption.do_encrypt(compressed_msg) + final_msg = bytes(f'{len(encrypted_msg):<{headersize}}', encoding) + encrypted_msg + conn.send(final_msg)
\ No newline at end of file diff --git a/binary/encrypt_data.py b/binary/encrypt_data.py new file mode 100644 index 0000000..6f88280 --- /dev/null +++ b/binary/encrypt_data.py @@ -0,0 +1,26 @@ +import base64 + +from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC +from cryptography.hazmat.backends import default_backend +from cryptography.hazmat.primitives import hashes +from cryptography.fernet import Fernet + + +class Encryption: + def __init__(self, password='ksxgyRuBRJLKxjFeHD4nmxbE', salt=b'v4CuHZFzmTedBY2EBGrLRXsm'): + self.password = password + self.salt = salt + self.key = Fernet(self.generate_key()) + + + def generate_key(self): + kdf = PBKDF2HMAC(algorithm=hashes.SHA256(), length=32, salt=self.salt, iterations=100000, backend=default_backend()) + return base64.urlsafe_b64encode(kdf.derive(self.password.encode())) + + + def do_encrypt(self, message): + return self.key.encrypt(message) + + + def do_decrypt(self, ciphertext): + return self.key.decrypt(ciphertext)
\ No newline at end of file |