The CRYPT10 file format is associated with WhatsApp encrypted chat backups stored on Android devices. It is a variant of WhatsApp’s .crypt series, which are used for encrypting chat backups stored in the /sdcard/WhatsApp/Databases/ directory.

Understanding CRYPT10 Files

  • File Name Example: msgstore.db.crypt10
  • Purpose: Stores encrypted chat messages and media metadata.
  • Location: Typically found in /sdcard/WhatsApp/Databases/ on Android devices.
  • Encryption: Uses a proprietary encryption method by WhatsApp.

How to Decrypt a CRYPT10 File?

To decrypt a .crypt10 file, you need:

  1. The Original Database Key
    • Stored in /data/data/com.whatsapp/files/key (requires root access).
  2. Decryption Tools
    • Programs like WhatsApp Viewer or Python scripts can be used.
  3. Manual Decryption (Advanced Users)
    • Use tools like openssl or custom scripts.

How to Open CRYPT10 Files?

  • Without Decryption: You can’t open it directly.
  • With Decryption: Convert it to a readable SQLite .db file.

Newer Formats

WhatsApp has evolved its encryption over time:

  • .crypt8 → .crypt10 → .crypt12 → .crypt14 → .crypt15.

References