Cryptfs Password

Changes the Android disk encryption password

New: Experimental Lollipop support. Requires SuperSU

If you are using a pattern lock, enter the current password as

a sequence of dot numbers.

Dots are numbered left-to-right, top-to-bottom, starting with 1:

1 2 3

4 5 6

7 8 9

This tool REQUIRES root access to work. If you are not using disk encryption this tool will not be useful to you. In fact, it will not even start on your device.

*** WARNING ***

If you forget the new password after you change it, you will not be able to boot the device. You will have to perform a factory reset, DELETING all your data. Make sure you take a full backup before using this tool, and REMEMBER THE PASSWORD. You have been warned, use at your own risk!

Android 3.0 (Honeycomb) introduced disk encryption and it has been available on all subsequent versions. It encrypts the data partition with a key protected by a user-selected password and requires entering the password in order to boot the device. However, Android uses the device unlock password or PIN as the device encryption password, and doesn't allow you to change them separately. This effectively forces you to use a simple password, since you have to enter it each time you unlock your device, usually dozens of times a day. This tool allows you to change the encryption password to a more secure one, without affecting the screen unlock password/PIN. To change the device encryption password simply:

1. Enter the current password

(initially the same as the unlock password/PIN)

2. Enter and confirm the new password

3. Hit 'Change password'

The changes take effect immediately, but you will only be required to enter the new password the next time you boot your device. Make sure you choose a good password, not based on a dictionary word, since automated tools can brute force a simple password in minutes. Above all, make sure you REMEMBER the new password.

If you change the device unlock password/PIN, the encryption password will be automatically changed as well. You need to use this tool again to change it back, if required.

More details and some background information here:

http://nelenkov.blogspot.com/2012/08/changing-androids-disk-encryption.html

Not supported on Android L, but may not be required due to changes to disk encryption implementation.

More details about Android L:

http://nelenkov.blogspot.com/2014/10/revisiting-android-disk-encryption.html

This tool is open source. Code is available on Github under the Apache 2.0 license.

https://github.com/nelenkov/cryptfs-password-manager

Tested on Galaxy Nexus with

* stock Jelly Bean (4.1.1)

* CyanognenMod 9 (4.0.4)

NO WARRANTY. Use at your own risk.

Mengubah Android sandi enkripsi disk

Baru: dukungan Eksperimental Lollipop. Membutuhkan SuperSU

Jika Anda menggunakan kunci pola, masukkan password saat ini sebagai

urutan titik nomor.

Titik diberi nomor dari kiri ke kanan, atas-ke-bawah, dimulai dengan 1:

1 2 3

4 5 6

7 8 9

Alat ini MEMBUTUHKAN akses root untuk bekerja. Jika Anda tidak menggunakan enkripsi disk alat ini tidak akan berguna bagi Anda. Pada kenyataannya, bahkan tidak akan mulai pada perangkat Anda.

*** PERINGATAN ***

Jika Anda lupa password baru setelah Anda mengubahnya, Anda tidak akan dapat boot perangkat. Anda harus melakukan reset pabrik, MENGHAPUS semua data Anda. Pastikan Anda mengambil salinan lengkap sebelum menggunakan alat ini, dan INGAT PASSWORD THE. Anda telah diperingatkan, gunakan risiko Anda sendiri!

Android 3.0 (Honeycomb) memperkenalkan enkripsi disk dan telah tersedia pada semua versi berikutnya. Ini mengenkripsi partisi data dengan kunci yang dilindungi oleh password yang dipilih pengguna dan membutuhkan memasukkan password untuk melakukan boot perangkat. Namun, Android menggunakan password unlock perangkat atau PIN sebagai password enkripsi perangkat, dan tidak memungkinkan Anda untuk mengubah secara terpisah. Ini secara efektif memaksa Anda untuk menggunakan password yang sederhana, karena Anda harus memasukkan setiap kali Anda membuka kunci perangkat Anda, biasanya puluhan kali sehari. Alat ini memungkinkan Anda untuk mengubah sandi enkripsi ke yang lebih aman, tanpa mempengaruhi buka kunci layar sandi / PIN. Untuk mengubah sandi enkripsi perangkat sederhana:

 1. Masukkan password saat ini

 (Awalnya sama dengan membuka password / PIN)

 2. Masukkan dan konfirmasi password baru

 3. Hit 'Ubah password'

Perubahan segera berlaku, tetapi Anda hanya akan diminta untuk memasukkan password baru pada saat Anda boot perangkat Anda. Pastikan Anda memilih password yang baik, tidak didasarkan pada kata kamus, karena alat otomatis dapat brute force password sederhana dalam hitungan menit. Di atas semua, pastikan Anda INGAT password baru.

Jika Anda mengubah kata sandi perangkat unlock / PIN, password enkripsi akan otomatis berubah juga. Anda perlu menggunakan alat ini lagi untuk mengubahnya kembali, jika diperlukan.

Rincian lebih lanjut dan beberapa informasi latar belakang di sini:

http://nelenkov.blogspot.com/2012/08/changing-androids-disk-encryption.html

Tidak didukung pada Android L, tapi mungkin tidak diperlukan karena perubahan pelaksanaan enkripsi disk.

Rincian lebih lanjut tentang Android L:

http://nelenkov.blogspot.com/2014/10/revisiting-android-disk-encryption.html

Alat ini bersifat open source. Kode tersedia di Github di bawah lisensi Apache 2.0.

https://github.com/nelenkov/cryptfs-password-manager

Diuji pada Galaxy Nexus dengan

  * Saham Jelly Bean (4.1.1)

  * CyanognenMod 9 (4.0.4)

TIDAK ADA JAMINAN. Gunakan dengan resiko anda sendiri.

Changes the Android disk encryption password

New: Experimental Lollipop support. Requires SuperSU

If you are using a pattern lock, enter the current password as

a sequence of dot numbers.

Dots are numbered left-to-right, top-to-bottom, starting with 1:

1 2 3

4 5 6

7 8 9

This tool REQUIRES root access to work. If you are not using disk encryption this tool will not be useful to you. In fact, it will not even start on your device.

*** WARNING ***

If you forget the new password after you change it, you will not be able to boot the device. You will have to perform a factory reset, DELETING all your data. Make sure you take a full backup before using this tool, and REMEMBER THE PASSWORD. You have been warned, use at your own risk!

Android 3.0 (Honeycomb) introduced disk encryption and it has been available on all subsequent versions. It encrypts the data partition with a key protected by a user-selected password and requires entering the password in order to boot the device. However, Android uses the device unlock password or PIN as the device encryption password, and doesn't allow you to change them separately. This effectively forces you to use a simple password, since you have to enter it each time you unlock your device, usually dozens of times a day. This tool allows you to change the encryption password to a more secure one, without affecting the screen unlock password/PIN. To change the device encryption password simply:

1. Enter the current password

(initially the same as the unlock password/PIN)

2. Enter and confirm the new password

3. Hit 'Change password'

The changes take effect immediately, but you will only be required to enter the new password the next time you boot your device. Make sure you choose a good password, not based on a dictionary word, since automated tools can brute force a simple password in minutes. Above all, make sure you REMEMBER the new password.

If you change the device unlock password/PIN, the encryption password will be automatically changed as well. You need to use this tool again to change it back, if required.

More details and some background information here:

http://nelenkov.blogspot.com/2012/08/changing-androids-disk-encryption.html

Not supported on Android L, but may not be required due to changes to disk encryption implementation.

More details about Android L:

http://nelenkov.blogspot.com/2014/10/revisiting-android-disk-encryption.html

This tool is open source. Code is available on Github under the Apache 2.0 license.

https://github.com/nelenkov/cryptfs-password-manager

Tested on Galaxy Nexus with

* stock Jelly Bean (4.1.1)

* CyanognenMod 9 (4.0.4)

NO WARRANTY. Use at your own risk.