All Questions
Tagged with encryption security
119
questions
0
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43
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Protect system disk from attaching to another machine
I have a device (Raspberry PI 3, Orange PI 5) with SSD as main disk, running under Ubuntu 22.04.
This device should be autonome, i.e. autimatically reboot and autorun some services.
There is some ...
- 101
0
votes
1
answer
142
views
I was installing / enableing fips 140 , rebooted as instructed now my wifi wont let me log rejecting the correct pw. Running Ubuntu Studio 20.13on
I was attempting to make a compliant
Laptop and after enabling fips 140. I can no longer log in to my Wi-Fi networks with what were the proper passwords, it asks for password or security encryption ...
- 11
0
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187
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Failing to import new PKCS12 certificate into Evolution Mail
my PKCS12 certificate from my workplace institution expires in a few days. I already got a new one. Yet, I'm failing to import it into Evolution mail. When selecting Edit > Preferences > ...
1
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0
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319
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Password protect a folder in Ubuntu 22.04 LTS
I would like to have the option to right click on a folder, and be able to protect its access with a password. How do I do that?
I know it is possible to do it in other distributions, but I want to ...
1
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0
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108
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LUKS FDE password policy not enforced?
I am noticing that on a vanilla Ubuntu 22.04 LTS installation, there is no password policy whatsoever enforced when changing the LUKS FDE password using cryptsetup luksChangeKey or luksAddKey.
In the ...
- 41
2
votes
1
answer
803
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Which random generator does /dev/urandom use (LTS 20.04)
I am curious about the standard cryptographic secure random generator used by /dev/urandom in Ubuntu LTS 20.04. Can someone name the standard or provide me with a reference where I can find more ...
- 123
-1
votes
2
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435
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security risk? why ubuntu apply strange permissions in /boot/initrd* and /boot/vmlinuz*?
the initrd.img are all 644, the vmlinuz in another hand is 600. This is reversed on many other distros if not all. I think other distros actually do it correctly. the content in vlinuz is all public ...
- 665
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492
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Disabling linux user password prompts when accessing encrypted drives (polkit conf?)
I just created a new ext4 partition on a new drive and decided to use LUKS to encrypt it. I entered a password to use for encryption and the partition was created. So far, so good.
However, I have the ...
1
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0
answers
347
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Are my files encrypted in sleep mode?
I have a simple questions but can't to seem to find an answer online.
I've installed Ubuntu 20.04 using full disc encryption. At startup, my laptop now asks me for a password to decrypt.
I use suspend ...
- 121
0
votes
1
answer
241
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dirmngr try to lookup pubkeys in the internet
I was doing a python script with gpg encryption and was debugging why some files not encrypted. During this debugging session I find this:
gpg: error retrieving '[email protected]' via WKD: ...
- 1
0
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1
answer
84
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How can I setup an encrypted directory where root cannot see by sudoing to my user but sftp can?
I have a standard user on a remote Ubuntu server where I code and I'd like to keep some of my files private from a "sudo myuser" by root. (E.g. config files) Those files would also have to ...
- 1
0
votes
2
answers
532
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Securing services on mini PC running Ubuntu
I'm working for a startup creating a product which will be rolled out complete with the required hardware.
The hardware is a mini PC running Ubuntu 20.04. The application consists of python services ...
- 101
4
votes
1
answer
9k
views
How to delete/modify the recovery key from the Ubuntu 21.04 encrypted disk install?
When installing Ubuntu 21.04 with encrypted disk (filesystem: zfs) a 16 digit "recovery key" is automatically created, how do i get rid of/modify it?
I am looking to:
list installed keys
...
- 868
7
votes
3
answers
15k
views
Putting Digital Signature on PDF in Ubuntu 20.04
Adobe Acrobat DC on windows support this feature.
While snap package adobe acrobat is partially functional on linux, as it logs incompatibility message.
So actually I am looking for signing my offer ...
- 238
0
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answers
2k
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Encrypt a directory mounted to docker container
I have a directory on my Ubuntu 18.04 server which is mounted to the root folder of my Apache docker container.
I want a way to get the entire directory encrypted by default. That means whatever data ...
- 111