├── conf.json ├── README.md ├── decrypt.py └── LICENSE /conf.json: -------------------------------------------------------------------------------- 1 | [ 2 | {"id": 1, "key": "TCEgxuglpfK9vdmyIk3n8Q=="}, 3 | {"id": 2, "key": "w64fJz1yDElhK8ElVYxVvg=="}, 4 | {"id": 3, "key": "cdUNh0xlDFSop50Kst/LRg=="} 5 | ] 6 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # SIF40_Decrypt 2 | 3 | DB Decryptor for `SIF JP Version 4.0` `("release_tag" encryption)` 4 | 5 | Usage: `decrypt.py [filename]` 6 | 7 | Make Sure that `[filename]` is a valid SQLite Database, and there's corresponding key in `conf.json`. 8 | 9 | 10 | -------------------------------------------------------------------------------- /decrypt.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | # -*- coding: utf-8 -*- 3 | from Crypto.Cipher import AES 4 | import base64 5 | import sqlite3 6 | import json, sys 7 | print '====== SIF4 Decrypt Tool by ieb ======' 8 | if len(sys.argv) == 1: 9 | print 'Command-Line usage:', sys.argv[0], '[filename.db_]' 10 | filename = raw_input('Filename to decrypt: ') 11 | else: 12 | filename = sys.argv[1] 13 | def decrypt(key, encrypted): 14 | unpad = lambda s : s[0:-ord(s[-1])] 15 | 16 | key = base64.b64decode(key) 17 | encrypted = base64.b64decode(encrypted) 18 | 19 | iv = encrypted[:16] 20 | content = encrypted[16:] 21 | 22 | mode = AES.MODE_CBC 23 | encryptor = AES.new(key, mode, IV=iv) 24 | 25 | data = encryptor.decrypt(content) 26 | data = unpad(data) 27 | load = json.loads(data) 28 | 29 | return load 30 | 31 | try: 32 | conn = sqlite3.connect(filename) 33 | conn.row_factory = sqlite3.Row 34 | cur = conn.cursor() 35 | upd = conn.cursor() 36 | keys = json.loads(open("conf.json").read()) 37 | keypairs = dict([(i["id"], i["key"]) for i in keys]) 38 | cur.execute("SELECT * FROM sqlite_master WHERE type='table'") 39 | tables = cur.fetchall() 40 | notfound = [] 41 | count = 0 42 | for i in tables: 43 | if 'release_tag' in i['sql']: 44 | print 'Found Encrypted Table', i['tbl_name'] 45 | cur.execute("SELECT _rowid_ as __rowid, * FROM " + i['tbl_name'] + " WHERE release_tag IS NOT NULL", ) 46 | data = cur.fetchall() 47 | for item in data: 48 | keyid = item['_encryption_release_id'] 49 | content = item['release_tag'] 50 | __rowid = item['__rowid'] 51 | if keyid in keypairs: 52 | dec = decrypt(keypairs[keyid], content) 53 | for col in dec: 54 | val = dec[col] if dec[col] is not False else None 55 | count += 1 56 | upd.execute("UPDATE " + i['tbl_name'] + " SET " + col + " = ? WHERE _rowid_ = ?", (val, __rowid)) 57 | upd.execute("UPDATE " + i['tbl_name'] + " SET release_tag = ?, _encryption_release_id = ? WHERE _rowid_ = ?", (None, None, __rowid)) 58 | 59 | else: 60 | if keyid not in notfound: 61 | notfound.append(keyid) 62 | conn.commit() 63 | if len(notfound): 64 | print 'Failed to decrypt key', notfound 65 | print 'Successfully Decypted %d Records' % (count) 66 | except Exception, e: 67 | print 'Err:', e 68 | raw_input('Press Enter To Exit') -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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