December 2018
Beginner to intermediate
328 pages
8h 29m
English
Content preview from Learning Android Forensics - Second Edition
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General bypass information
In all cases, bypassing the lock screen will require retrieving a file from the device. Pattern locks are stored as hash values at /data/system/gesture.key and PIN/password locks are stored as hash values at /data/system/password.key (up to Android 5.0, Lollipop). Additionally, the password.key hash is salted; the salt value is stored at /data/data/com.android.providers.settings/databases/settings.db prior to Android 4.4, and /data/system/locksettings.db on devices running Android 4.4 and later.
Android 6.0 (Marshmallow) introduced Gatekeeper password storage—a new level of obfuscation to PIN and pattern locks. Now, the locks are stored in gatekeeper.pattern.key and gatekeeper.password.key and no longer use hashes. ...
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