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Author Topic: Encryption [Solved]  (Read 865 times)

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Offline acer

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Encryption [Solved]
« on: September 10, 2016, 09:39:13 am »
Ok,
 I have now realised that when PM7 was installed on my laptop, I never encrypted the Home Partition or the Swap partition.
Is there a way to do it now or do I need to re-install the OS?
Kicking myself... :-[

Have backed up stuff just in case..
« Last Edit: September 11, 2016, 02:40:43 pm by acer »

Offline PCNetSpec

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Re: Encryption
« Reply #1 on: September 10, 2016, 11:17:38 am »
Not "easily" and "risk free"

See here if you wanna run the risk:
https://help.ubuntu.com/community/PostInstallationEncryption
and
http://www.howtogeek.com/116032/how-to-encrypt-your-home-folder-after-installing-ubuntu/
but don't blame us if things go horribly wrong and you loose everything ;)

BACKUP ANYTHING YOU CANNOT AFFORD TO LOOSE FIRST .. I know you said you already had, but an extra warning never hurt anyone right ;)

There's a MUCH simpler solution where you create an encrypted FOLDER for your sensitive stuff if you're interested ?
https://forum.peppermintos.com/index.php/topic,2437.0.html
Should still work in Peppermint 7
« Last Edit: September 10, 2016, 11:21:47 am by PCNetSpec »
WARNING: You are logged into reality as 'root' .. logging in as 'insane' is the only safe option.

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Offline acer

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Re: Encryption
« Reply #2 on: September 10, 2016, 11:48:34 am »
Ok having quickly read though these options..

I'll give it a big MISS as this is just a test m/c but, I will be encrypting the two machines I have in waiting at installation.

BTW the encrypted FOLDER option gives a WARNING during the terminal install stage:
Code: [Select]
sudo apt-get install cryptkeeper
stating that it has been known to have been compromised  :o
So I just auto removed it.
Then when I tried again, the pop-up warning did not appear?!   ???
and auto removed it again.

I may even reinstall everything on this test m/c when the weather is british!
Thanks again

Offline PCNetSpec

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Re: Encryption [Delayed/Solved]
« Reply #3 on: September 10, 2016, 12:11:11 pm »
Quote
│ Encfs security information                                                │
 │                                                                           │
 │ According to a security audit by Taylor Hornby (Defuse Security), the     │
 │ current implementation of Encfs is vulnerable or potentially vulnerable   │
 │ to multiple types of attacks. For example, an attacker with read/write    │
 │ access to encrypted data might lower the decryption complexity for        │
 │ subsequently encrypted data without this being noticed by a legitimate    │
 │ user, or might use timing analysis to deduce information.                 │
 │                                                                           │
 │ Until these issues are resolved, encfs should not be considered a safe    │
 │ home for sensitive data in scenarios where such attacks are possible.

Well sure, if someone has physical access to the machine when it's unlocked and lowers/disables encryption .. but if they have physical access to the machine whilst it's unlocked you've already lost your stuff haven't you ?
WARNING: You are logged into reality as 'root' .. logging in as 'insane' is the only safe option.

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Offline acer

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Re: Encryption [Delayed/Solved]
« Reply #4 on: September 10, 2016, 01:51:36 pm »
No mention of the other vulnerabilities but, the example given was for an obvious one really.  :-\
Not that THAT matters at home <slaps forehead>
'Encfs is vulnerable or potentially vulnerable to multiple types of attack'
Which are?? How?

no matter, I won't be using it  ;)

Offline acer

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Re: Encryption [Solved]
« Reply #5 on: September 11, 2016, 02:40:15 pm »
Weather wasn't great today so...

Reformatted SSD using Partition Wizard 9.1 from a usb and re-installation with encryption done.
90% tweaks done as of now, so this thread is solved.