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Added extract-key info to main docs

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Pavel Kirkovsky 2021-07-23 03:46:48 -07:00
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docs/ios/backup/check.md
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The backup might take some time. It is best to make sure the phone remains unlocked during the backup process. Afterwards, a new folder will be created under the path you specified using the UDID of the iPhone you backed up.
## Extracting and saving the decryption key (optional)
If you do not wish to enter a password every time when decrypting a backup, MVT can accept a key file instead. This key can be used with the `decrypt-backup` command.
To generate a key file, you will need your device backup and the backup password:
$ mvt-ios extract-key --help
Usage: mvt-ios extract-key [OPTIONS] BACKUP_PATH
Extract decryption key from an iTunes backup
Options:
-p, --password TEXT Password to use to decrypt the backup [required]
-k, --key-file FILE Key file to be written (if unset, will print to STDOUT)
--help Show this message and exit.
You can specify the password on the command line, or omit the `-p` option to have MVT prompt for a password. The `-k` option specifies where to save the file containing the decryption key. If `-k` is omitted, MVT will display the decryption key without saving.
_Note_: This decryption key is sensitive data! Keep the file safe.
To extract the key and have MVT prompt for a password:
```bash
mvt-ios extract-key -k /path/to/save/key /path/to/backup
```
## Decrypting a backup
In case you have an encrypted backup, you will need to decrypt it first. This can be done with `mvt-ios` as well:
@ -25,7 +51,7 @@ In case you have an encrypted backup, you will need to decrypt it first. This ca
--help Show this message and exit.
You can specify either a password via command-line or pass a key file, and you need to specify a destination path where the decrypted backup will be stored. Following is an example usage of `decrypt-backup`:
You can specify either a password via command-line or pass a key file, and you need to specify a destination path where the decrypted backup will be stored. If `-p` is omitted, MVT will ask for a password. Following is an example usage of `decrypt-backup`:
```bash
mvt-ios decrypt-backup -p password -d /path/to/decrypted /path/to/backup