openssl enc -d -aes-256-cbc -pbkdf2 -iter 10000 -in encrypted_tgz.bin -out decrypted.tar.gz If the passphrase is incorrect, OpenSSL will output garbage or an error ( bad decrypt ). Try alternative iterations (5000, 20000) if the default fails. Once decryption succeeds, you will have a standard .tar.gz file. Decompress it:
#!/usr/bin/env python3 # decrypt_localtgzve.py import sys import os import hashlib from Crypto.Cipher import AES from Crypto.Protocol.KDF import PBKDF2 import gzip import tarfile def decrypt_localtgzve(in_file, passphrase, out_dir): with open(in_file, 'rb') as f: magic = f.read(4) if magic != b'LTGV': raise ValueError("Not a valid LocalTgzve file") f.read(8) # reserved offset = int.from_bytes(f.read(4), 'little') f.seek(offset) enc_data = f.read() decrypt localtgzve link
dd if=target.localtgzve of=encrypted_tgz.bin bs=1 skip=16 The VE layer is essentially AES-256-CBC with a custom IV derivation. If you have a passphrase, use this OpenSSL one-liner (after converting the key using a KDF like PBKDF2 with 10,000 iterations as per the LocalTgzve spec): openssl enc -d -aes-256-cbc -pbkdf2 -iter 10000 -in
# Extract with tarfile.open(temp_tar, 'r:gz') as tar: tar.extractall(out_dir) os.remove(temp_tar) print(f"Success! Files extracted to out_dir") if == " main ": decrypt_localtgzve(sys.argv[1], sys.argv[2], sys.argv[3]) Decompress it: #
cipher = AES.new(key, AES.MODE_CBC, iv) decrypted = cipher.decrypt(enc_data) # Remove PKCS#7 padding pad_len = decrypted[-1] decrypted = decrypted[:-pad_len]