calvin.erfmann/WhatsApp-Chat-Exporter
1
0
Fork 0
mirror of https://github.com/KnugiHK/WhatsApp-Chat-Exporter.git synced 2026-04-24 06:51:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

A more concrete way to determine database offset

Browse Source
This commit is contained in:
KnugiHK
2022-09-05 12:48:36 +08:00
parent e7c246822b
commit 2f04b69f38
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
Whatsapp_Chat_Exporter/extract.py
View File

@@ -112,7 +112,8 @@ def decrypt_backup(database, key, output, crypt=Crypt.CRYPT14):
raise ValueError("The crypt15 file must be at least 131 bytes") raise ValueError("The crypt15 file must be at least 131 bytes")
t1 = t2 = None t1 = t2 = None
iv = database[8:24] iv = database[8:24]
db_ciphertext = database[131:] db_offset = database[0] + 2 # Skip protobuf + protobuf size and backup type
db_ciphertext = database[proto_len:]
if t1 != t2: if t1 != t2:
raise ValueError("The signature of key file and backup file mismatch") raise ValueError("The signature of key file and backup file mismatch")