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#1 2016-02-05 10:45:59
- AlgoJerViA
- Member
- Registered: 2014-08-06
- Posts: 24
Add shorter password togheter.
Hi
I have memorized two strong random passwords with 10 letters in each. Is it a ok practice to combine them to create a longer password? And if I make two combinations with the strong passwords like password A + password B and the oposite is it ok to threat them as two completly diffrent passwords?
I want to use one password to unlock a encrypted boot device feom grub and then the other in combination with a token to unlock the encrypted root drive in initramfs?
Will it show in the hash that the passwords are related?
/Andreas
I hope the spelling is not to bad, not native to english and broken spell check on phone, sorry.
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#2 2016-02-05 12:50:50
- graysky
- Wiki Maintainer
- From: :wq
- Registered: 2008-12-01
- Posts: 10,729
- Website
Re: Add shorter password togheter.
No, the hash doesn't work like that. Try it yourself to verify my statement as true.
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#3 2016-02-05 16:22:56
- AlgoJerViA
- Member
- Registered: 2014-08-06
- Posts: 24
Re: Add shorter password togheter.
Yea the last question was a bit redundant. I was temporarly confused based on how facebook genereted their onoin adress. Not relevant.
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#4 2016-02-05 22:55:47
- Leonid.I
- Member
- From: Aethyr
- Registered: 2009-03-22
- Posts: 999
Re: Add shorter password togheter.
OK, first, 10-character passwd is not really strong. Second, what do you mean by an "encrypted boot device", and how do you want to decrypt it from grub, and how does this differ from having an un-encrypted boot device?
To answer your question: I guess it's OK to make the two long passwords like that, although you could come up with a more creative scheme. For example, interleave the two short passwords with a 2-character period (2 chars from first, 2 chars from second, etc.)...
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