How to change LUKS passphrase?
Having installed Ubuntu 11.10 with whole disk encryption and LVM, I need to provide a way for users to easily change LUKS passphrase.
Preferably, this should be done using GUI tools, thus, enabling novice users to perform this basic task.
security lvm luks usability
edited Jan 20 '15 at 17:10
guntbert
9,226133170
asked Jan 13 '12 at 10:57
ervingsbervingsb
461257
add a comment |
Having installed Ubuntu 11.10 with whole disk encryption and LVM, I need to provide a way for users to easily change LUKS passphrase.
Preferably, this should be done using GUI tools, thus, enabling novice users to perform this basic task.
security lvm luks usability
edited Jan 20 '15 at 17:10
guntbert
9,226133170
asked Jan 13 '12 at 10:57
ervingsbervingsb
461257
add a comment |
Having installed Ubuntu 11.10 with whole disk encryption and LVM, I need to provide a way for users to easily change LUKS passphrase.
Preferably, this should be done using GUI tools, thus, enabling novice users to perform this basic task.
security lvm luks usability
edited Jan 20 '15 at 17:10
guntbert
9,226133170
asked Jan 13 '12 at 10:57
ervingsbervingsb
461257
Having installed Ubuntu 11.10 with whole disk encryption and LVM, I need to provide a way for users to easily change LUKS passphrase.
Preferably, this should be done using GUI tools, thus, enabling novice users to perform this basic task.
security lvm luks usability
security lvm luks usability
edited Jan 20 '15 at 17:10
guntbert
9,226133170
asked Jan 13 '12 at 10:57
ervingsbervingsb
461257
edited Jan 20 '15 at 17:10
guntbert
9,226133170
asked Jan 13 '12 at 10:57
ervingsbervingsb
461257
edited Jan 20 '15 at 17:10
guntbert
9,226133170
edited Jan 20 '15 at 17:10
guntbert
9,226133170
edited Jan 20 '15 at 17:10
guntbert
9,226133170
9,226133170
asked Jan 13 '12 at 10:57
ervingsbervingsb
461257
asked Jan 13 '12 at 10:57
ervingsbervingsb
461257
asked Jan 13 '12 at 10:57
ervingsbervingsb
461257
461257
add a comment |
add a comment |
4 Answers
4
active
oldest
votes
Tested in ubuntu 14.04: Search for the "Disks" application
Select Device, select volume, Click cogs (more actions) -> "Change passphrase"
:
edited Jan 20 '15 at 17:06
guntbert
9,226133170
answered Apr 5 '14 at 6:26
Richard PierreRichard Pierre
45544
Doesn't work with "long" passphrases...
– Thomas
May 30 '15 at 20:47
What actual application is this please? apt-get install ???
– shadowbq
Oct 9 '15 at 13:16
FYI: gnome-disk-utility / apt-get install gnome-disk-utility && gnome-disks
– shadowbq
Oct 9 '15 at 13:23
2
This is the built-in Disks application. No need to install anything. It works with fairly decent passwords. I haven't tried anything over 20 characters though.
– Alain O'Dea
Nov 26 '15 at 2:55
add a comment |
I am not familiar with gui tool but cryptsetup is the tool to interact with luks.
Basically AFAIK luks lets you add 8 passphrase slots and you can do that with:
sudo cryptsetup -y luksAddKey ENCRYPTED_PARTITION
sudo cryptsetup luksRemoveKey ENCRYPTED_PARTITION
where 0 is the slot number. I guess luks stores slots as 0,1,2 etc. But I recommend you to be very careful with luks as you may lock yourself out. Please refer to manual of cryptsetup. Also I recommend you to visit other distro IRC channel just to be extra safe before you proceed.
You may need to reboot the machine and try your new passsphrase as well before you remove the key.
cryptsetup
EDIT: Seems like gnome-disk-utility lets you change the passphrase.
edited Apr 17 '13 at 10:06
user1338062
57657
answered Jan 13 '12 at 11:47
sagarchalisesagarchalise
18k105974
cryptsetup luksRemoveKey <partition>actually takes a keyfile as the last parameter. So if you want to input the passphrase, just give the device as parameter. cryptsetup will first prompt for "Enter LUKS passphrase to be deleted:" and then "Enter any remaining LUKS passphrase:"
– user1338062
Apr 17 '13 at 9:30
Avoid the gnome utility if your passphrase is very long, it may cut your input...
– Thomas
May 30 '15 at 20:51
@Thomas or whoever else is interested: at least 14 characters are not too long for the gnome disk utility.
– KlaymenDK
Apr 13 '16 at 13:52
I just tried the gnome utility with an old password 22 characters long and a new passphrase 9 words long, and it failed enough times that I assume I typed it right at least once, and it's being truncated.
– Glenn Willen
Aug 13 '18 at 21:42
add a comment |
cryptsetup luksChangeKey <target device> -S <target key slot number>
This will ask you first for a valid pass-phrase (in any enabled keyslot) then will prompt you fro the new passphrase in the target keyslot
edited Jun 2 '17 at 15:12
tacaswell
10316
answered Dec 2 '13 at 11:29
louigi600louigi600
14112
1
In 12.04.5 I was asked for the new password twice.
– Devin Lane
Sep 19 '15 at 21:00
add a comment |
Tested on Ubuntu 18.04 run gnome-disks and you can point and click to change the passphrase for the encryption. In the same manner as the accepted answer above.
answered yesterday
Greg LeverGreg Lever
1213
New contributor
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
Tested in ubuntu 14.04: Search for the "Disks" application
Select Device, select volume, Click cogs (more actions) -> "Change passphrase"
:
edited Jan 20 '15 at 17:06
guntbert
9,226133170
answered Apr 5 '14 at 6:26
Richard PierreRichard Pierre
45544
Doesn't work with "long" passphrases...
– Thomas
May 30 '15 at 20:47
What actual application is this please? apt-get install ???
– shadowbq
Oct 9 '15 at 13:16
FYI: gnome-disk-utility / apt-get install gnome-disk-utility && gnome-disks
– shadowbq
Oct 9 '15 at 13:23
2
This is the built-in Disks application. No need to install anything. It works with fairly decent passwords. I haven't tried anything over 20 characters though.
– Alain O'Dea
Nov 26 '15 at 2:55
add a comment |
Tested in ubuntu 14.04: Search for the "Disks" application
Select Device, select volume, Click cogs (more actions) -> "Change passphrase"
:
edited Jan 20 '15 at 17:06
guntbert
9,226133170
answered Apr 5 '14 at 6:26
Richard PierreRichard Pierre
45544
Doesn't work with "long" passphrases...
– Thomas
May 30 '15 at 20:47
What actual application is this please? apt-get install ???
– shadowbq
Oct 9 '15 at 13:16
FYI: gnome-disk-utility / apt-get install gnome-disk-utility && gnome-disks
– shadowbq
Oct 9 '15 at 13:23
2
This is the built-in Disks application. No need to install anything. It works with fairly decent passwords. I haven't tried anything over 20 characters though.
– Alain O'Dea
Nov 26 '15 at 2:55
add a comment |
Tested in ubuntu 14.04: Search for the "Disks" application
Select Device, select volume, Click cogs (more actions) -> "Change passphrase"
:
edited Jan 20 '15 at 17:06
guntbert
9,226133170
answered Apr 5 '14 at 6:26
Richard PierreRichard Pierre
45544
Tested in ubuntu 14.04: Search for the "Disks" application
Select Device, select volume, Click cogs (more actions) -> "Change passphrase"
:
edited Jan 20 '15 at 17:06
guntbert
9,226133170
answered Apr 5 '14 at 6:26
Richard PierreRichard Pierre
45544
edited Jan 20 '15 at 17:06
guntbert
9,226133170
edited Jan 20 '15 at 17:06
guntbert
9,226133170
edited Jan 20 '15 at 17:06
guntbert
9,226133170
9,226133170
answered Apr 5 '14 at 6:26
Richard PierreRichard Pierre
45544
answered Apr 5 '14 at 6:26
Richard PierreRichard Pierre
45544
answered Apr 5 '14 at 6:26
Richard PierreRichard Pierre
45544
45544
Doesn't work with "long" passphrases...
– Thomas
May 30 '15 at 20:47
What actual application is this please? apt-get install ???
– shadowbq
Oct 9 '15 at 13:16
FYI: gnome-disk-utility / apt-get install gnome-disk-utility && gnome-disks
– shadowbq
Oct 9 '15 at 13:23
2
This is the built-in Disks application. No need to install anything. It works with fairly decent passwords. I haven't tried anything over 20 characters though.
– Alain O'Dea
Nov 26 '15 at 2:55
add a comment |
Doesn't work with "long" passphrases...
– Thomas
May 30 '15 at 20:47
What actual application is this please? apt-get install ???
– shadowbq
Oct 9 '15 at 13:16
FYI: gnome-disk-utility / apt-get install gnome-disk-utility && gnome-disks
– shadowbq
Oct 9 '15 at 13:23
2
This is the built-in Disks application. No need to install anything. It works with fairly decent passwords. I haven't tried anything over 20 characters though.
– Alain O'Dea
Nov 26 '15 at 2:55
Doesn't work with "long" passphrases...
– Thomas
May 30 '15 at 20:47
Doesn't work with "long" passphrases...
– Thomas
May 30 '15 at 20:47
What actual application is this please? apt-get install ???
– shadowbq
Oct 9 '15 at 13:16
What actual application is this please? apt-get install ???
– shadowbq
Oct 9 '15 at 13:16
FYI: gnome-disk-utility / apt-get install gnome-disk-utility && gnome-disks
– shadowbq
Oct 9 '15 at 13:23
FYI: gnome-disk-utility / apt-get install gnome-disk-utility && gnome-disks
– shadowbq
Oct 9 '15 at 13:23
2
2
This is the built-in Disks application. No need to install anything. It works with fairly decent passwords. I haven't tried anything over 20 characters though.
– Alain O'Dea
Nov 26 '15 at 2:55
This is the built-in Disks application. No need to install anything. It works with fairly decent passwords. I haven't tried anything over 20 characters though.
– Alain O'Dea
Nov 26 '15 at 2:55
add a comment |
I am not familiar with gui tool but cryptsetup is the tool to interact with luks.
Basically AFAIK luks lets you add 8 passphrase slots and you can do that with:
sudo cryptsetup -y luksAddKey ENCRYPTED_PARTITION
sudo cryptsetup luksRemoveKey ENCRYPTED_PARTITION
where 0 is the slot number. I guess luks stores slots as 0,1,2 etc. But I recommend you to be very careful with luks as you may lock yourself out. Please refer to manual of cryptsetup. Also I recommend you to visit other distro IRC channel just to be extra safe before you proceed.
You may need to reboot the machine and try your new passsphrase as well before you remove the key.
cryptsetup
EDIT: Seems like gnome-disk-utility lets you change the passphrase.
edited Apr 17 '13 at 10:06
user1338062
57657
answered Jan 13 '12 at 11:47
sagarchalisesagarchalise
18k105974
cryptsetup luksRemoveKey <partition>actually takes a keyfile as the last parameter. So if you want to input the passphrase, just give the device as parameter. cryptsetup will first prompt for "Enter LUKS passphrase to be deleted:" and then "Enter any remaining LUKS passphrase:"
– user1338062
Apr 17 '13 at 9:30
Avoid the gnome utility if your passphrase is very long, it may cut your input...
– Thomas
May 30 '15 at 20:51
@Thomas or whoever else is interested: at least 14 characters are not too long for the gnome disk utility.
– KlaymenDK
Apr 13 '16 at 13:52
I just tried the gnome utility with an old password 22 characters long and a new passphrase 9 words long, and it failed enough times that I assume I typed it right at least once, and it's being truncated.
– Glenn Willen
Aug 13 '18 at 21:42
add a comment |
I am not familiar with gui tool but cryptsetup is the tool to interact with luks.
Basically AFAIK luks lets you add 8 passphrase slots and you can do that with:
sudo cryptsetup -y luksAddKey ENCRYPTED_PARTITION
sudo cryptsetup luksRemoveKey ENCRYPTED_PARTITION
where 0 is the slot number. I guess luks stores slots as 0,1,2 etc. But I recommend you to be very careful with luks as you may lock yourself out. Please refer to manual of cryptsetup. Also I recommend you to visit other distro IRC channel just to be extra safe before you proceed.
You may need to reboot the machine and try your new passsphrase as well before you remove the key.
cryptsetup
EDIT: Seems like gnome-disk-utility lets you change the passphrase.
edited Apr 17 '13 at 10:06
user1338062
57657
answered Jan 13 '12 at 11:47
sagarchalisesagarchalise
18k105974
cryptsetup luksRemoveKey <partition>actually takes a keyfile as the last parameter. So if you want to input the passphrase, just give the device as parameter. cryptsetup will first prompt for "Enter LUKS passphrase to be deleted:" and then "Enter any remaining LUKS passphrase:"
– user1338062
Apr 17 '13 at 9:30
Avoid the gnome utility if your passphrase is very long, it may cut your input...
– Thomas
May 30 '15 at 20:51
@Thomas or whoever else is interested: at least 14 characters are not too long for the gnome disk utility.
– KlaymenDK
Apr 13 '16 at 13:52
I just tried the gnome utility with an old password 22 characters long and a new passphrase 9 words long, and it failed enough times that I assume I typed it right at least once, and it's being truncated.
– Glenn Willen
Aug 13 '18 at 21:42
add a comment |
I am not familiar with gui tool but cryptsetup is the tool to interact with luks.
Basically AFAIK luks lets you add 8 passphrase slots and you can do that with:
sudo cryptsetup -y luksAddKey ENCRYPTED_PARTITION
sudo cryptsetup luksRemoveKey ENCRYPTED_PARTITION
where 0 is the slot number. I guess luks stores slots as 0,1,2 etc. But I recommend you to be very careful with luks as you may lock yourself out. Please refer to manual of cryptsetup. Also I recommend you to visit other distro IRC channel just to be extra safe before you proceed.
You may need to reboot the machine and try your new passsphrase as well before you remove the key.
cryptsetup
EDIT: Seems like gnome-disk-utility lets you change the passphrase.
edited Apr 17 '13 at 10:06
user1338062
57657
answered Jan 13 '12 at 11:47
sagarchalisesagarchalise
18k105974
I am not familiar with gui tool but cryptsetup is the tool to interact with luks.
Basically AFAIK luks lets you add 8 passphrase slots and you can do that with:
sudo cryptsetup -y luksAddKey ENCRYPTED_PARTITION
sudo cryptsetup luksRemoveKey ENCRYPTED_PARTITION
where 0 is the slot number. I guess luks stores slots as 0,1,2 etc. But I recommend you to be very careful with luks as you may lock yourself out. Please refer to manual of cryptsetup. Also I recommend you to visit other distro IRC channel just to be extra safe before you proceed.
You may need to reboot the machine and try your new passsphrase as well before you remove the key.
cryptsetup
EDIT: Seems like gnome-disk-utility lets you change the passphrase.
edited Apr 17 '13 at 10:06
user1338062
57657
answered Jan 13 '12 at 11:47
sagarchalisesagarchalise
18k105974
edited Apr 17 '13 at 10:06
user1338062
57657
edited Apr 17 '13 at 10:06
user1338062
57657
edited Apr 17 '13 at 10:06
user1338062
57657
57657
answered Jan 13 '12 at 11:47
sagarchalisesagarchalise
18k105974
answered Jan 13 '12 at 11:47
sagarchalisesagarchalise
18k105974
answered Jan 13 '12 at 11:47
sagarchalisesagarchalise
18k105974
18k105974
cryptsetup luksRemoveKey <partition>actually takes a keyfile as the last parameter. So if you want to input the passphrase, just give the device as parameter. cryptsetup will first prompt for "Enter LUKS passphrase to be deleted:" and then "Enter any remaining LUKS passphrase:"
– user1338062
Apr 17 '13 at 9:30
Avoid the gnome utility if your passphrase is very long, it may cut your input...
– Thomas
May 30 '15 at 20:51
@Thomas or whoever else is interested: at least 14 characters are not too long for the gnome disk utility.
– KlaymenDK
Apr 13 '16 at 13:52
I just tried the gnome utility with an old password 22 characters long and a new passphrase 9 words long, and it failed enough times that I assume I typed it right at least once, and it's being truncated.
– Glenn Willen
Aug 13 '18 at 21:42
add a comment |
cryptsetup luksRemoveKey <partition>actually takes a keyfile as the last parameter. So if you want to input the passphrase, just give the device as parameter. cryptsetup will first prompt for "Enter LUKS passphrase to be deleted:" and then "Enter any remaining LUKS passphrase:"
– user1338062
Apr 17 '13 at 9:30
Avoid the gnome utility if your passphrase is very long, it may cut your input...
– Thomas
May 30 '15 at 20:51
@Thomas or whoever else is interested: at least 14 characters are not too long for the gnome disk utility.
– KlaymenDK
Apr 13 '16 at 13:52
I just tried the gnome utility with an old password 22 characters long and a new passphrase 9 words long, and it failed enough times that I assume I typed it right at least once, and it's being truncated.
– Glenn Willen
Aug 13 '18 at 21:42
cryptsetup luksRemoveKey <partition> actually takes a keyfile as the last parameter. So if you want to input the passphrase, just give the device as parameter. cryptsetup will first prompt for "Enter LUKS passphrase to be deleted:" and then "Enter any remaining LUKS passphrase:"– user1338062
Apr 17 '13 at 9:30
cryptsetup luksRemoveKey <partition> actually takes a keyfile as the last parameter. So if you want to input the passphrase, just give the device as parameter. cryptsetup will first prompt for "Enter LUKS passphrase to be deleted:" and then "Enter any remaining LUKS passphrase:"– user1338062
Apr 17 '13 at 9:30
Avoid the gnome utility if your passphrase is very long, it may cut your input...
– Thomas
May 30 '15 at 20:51
Avoid the gnome utility if your passphrase is very long, it may cut your input...
– Thomas
May 30 '15 at 20:51
@Thomas or whoever else is interested: at least 14 characters are not too long for the gnome disk utility.
– KlaymenDK
Apr 13 '16 at 13:52
@Thomas or whoever else is interested: at least 14 characters are not too long for the gnome disk utility.
– KlaymenDK
Apr 13 '16 at 13:52
I just tried the gnome utility with an old password 22 characters long and a new passphrase 9 words long, and it failed enough times that I assume I typed it right at least once, and it's being truncated.
– Glenn Willen
Aug 13 '18 at 21:42
I just tried the gnome utility with an old password 22 characters long and a new passphrase 9 words long, and it failed enough times that I assume I typed it right at least once, and it's being truncated.
– Glenn Willen
Aug 13 '18 at 21:42
add a comment |
cryptsetup luksChangeKey <target device> -S <target key slot number>
This will ask you first for a valid pass-phrase (in any enabled keyslot) then will prompt you fro the new passphrase in the target keyslot
edited Jun 2 '17 at 15:12
tacaswell
10316
answered Dec 2 '13 at 11:29
louigi600louigi600
14112
1
In 12.04.5 I was asked for the new password twice.
– Devin Lane
Sep 19 '15 at 21:00
add a comment |
cryptsetup luksChangeKey <target device> -S <target key slot number>
This will ask you first for a valid pass-phrase (in any enabled keyslot) then will prompt you fro the new passphrase in the target keyslot
edited Jun 2 '17 at 15:12
tacaswell
10316
answered Dec 2 '13 at 11:29
louigi600louigi600
14112
1
In 12.04.5 I was asked for the new password twice.
– Devin Lane
Sep 19 '15 at 21:00
add a comment |
cryptsetup luksChangeKey <target device> -S <target key slot number>
This will ask you first for a valid pass-phrase (in any enabled keyslot) then will prompt you fro the new passphrase in the target keyslot
edited Jun 2 '17 at 15:12
tacaswell
10316
answered Dec 2 '13 at 11:29
louigi600louigi600
14112
cryptsetup luksChangeKey <target device> -S <target key slot number>
This will ask you first for a valid pass-phrase (in any enabled keyslot) then will prompt you fro the new passphrase in the target keyslot
edited Jun 2 '17 at 15:12
tacaswell
10316
answered Dec 2 '13 at 11:29
louigi600louigi600
14112
edited Jun 2 '17 at 15:12
tacaswell
10316
edited Jun 2 '17 at 15:12
tacaswell
10316
edited Jun 2 '17 at 15:12
tacaswell
10316
10316
answered Dec 2 '13 at 11:29
louigi600louigi600
14112
answered Dec 2 '13 at 11:29
louigi600louigi600
14112
answered Dec 2 '13 at 11:29
louigi600louigi600
14112
14112
1
In 12.04.5 I was asked for the new password twice.
– Devin Lane
Sep 19 '15 at 21:00
add a comment |
1
In 12.04.5 I was asked for the new password twice.
– Devin Lane
Sep 19 '15 at 21:00
1
1
In 12.04.5 I was asked for the new password twice.
– Devin Lane
Sep 19 '15 at 21:00
In 12.04.5 I was asked for the new password twice.
– Devin Lane
Sep 19 '15 at 21:00
add a comment |
Tested on Ubuntu 18.04 run gnome-disks and you can point and click to change the passphrase for the encryption. In the same manner as the accepted answer above.
answered yesterday
Greg LeverGreg Lever
1213
New contributor
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Tested on Ubuntu 18.04 run gnome-disks and you can point and click to change the passphrase for the encryption. In the same manner as the accepted answer above.
answered yesterday
Greg LeverGreg Lever
1213
New contributor
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Tested on Ubuntu 18.04 run gnome-disks and you can point and click to change the passphrase for the encryption. In the same manner as the accepted answer above.
answered yesterday
Greg LeverGreg Lever
1213
New contributor
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Tested on Ubuntu 18.04 run gnome-disks and you can point and click to change the passphrase for the encryption. In the same manner as the accepted answer above.
answered yesterday
Greg LeverGreg Lever
1213
New contributor
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered yesterday
Greg LeverGreg Lever
1213
New contributor
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered yesterday
Greg LeverGreg Lever
1213
answered yesterday
Greg LeverGreg Lever
1213
1213
New contributor
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Greg Lever is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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