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Encryption - how to use and how to make sense of it all

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    Encryption - how to use and how to make sense of it all

    I have to admit that in some sense I will always be a newbie. There are always new things to learn and new areas to explore. And for me today, it is encryption.

    In Kmail and other places there are mentions of encryption. And as I saw some posts about it on the internet, I thought it might be a good idea to explore a bit.

    I found KGpg, a nice tool to organise things, and I found some pages describing how to use it technically. But nothing about the philosophy behind it/best practices. ANd how do you combine it with Kmail and other applications?

    What type of encryption should you use? Seems like there are several ways to Rome here.

    How do I use it in my daily life with as little hassle as possible?

    I understand there is something about signing an e-mail to make sure it is from me. I also understand that you can encrypt the whole e-mail to stop someone from reading the content (if I can avoid sending "postcards" all the time, I would prefer that - not that I have anything to hide, but I actually put my physical letters in an envelope...)

    What will be the practical implications to this? I can see one problem - I am away from my pc and use another PC to access my mail through web. Then it will be impossible for me to read it because of the encryption?

    A lot of questions, but I hope someone can answer some of them...

    Edit: When opening and identity for modification to add encryption, I get that certificate manager could not be started. What is it, and how do I make sure it is installed?

    There are several areas of passwords/encryption/identities etc. Kwallet, encryption plug-in in Kopete, signing e-mails in Kmail and encrypting the mails just to mention some... Are these different apps talking together? How can I make sure I use the same encryption in all? I need less things to worry about, not more...
    Regards,
    Oceanwatcher
    Blog: http://www.wisnaes.com/
    Pictures: http://www.oceanwatcher.com/
    Software tips (in Norwegian): http://www.datahverdag.com/

    #2
    Re: Encryption - how to use and how to make sense of it all

    Cryptography is complex and mathematical. Read a book. I looked into the subject 10 or 12 years ago so all my references are out of date. The books I read (in English) were:
    • Applied Cryptography by Bruce Schneier--The encyclopedia of computer cryptography. It contains far more information than you need to know.
    • The Official PGP User's Guide by Phillip R. Zimmerman--GPG started as a rewrite of PGP. This is a brief no nonsense guide to the original program. I'd start here.
    • PGP: Pretty Good Privacy by Simson Garfinkel--A good compromise between the Schneier and the Zimmerman with examples of both DOS and Unix commands. If you want to read one book...

    Life has moved on. There may be newer, more GPG oriented, references available now.


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      #3
      Re: Encryption - how to use and how to make sense of it all

      Maybe the word philosophy threw you off a bit... Sorry for that. As my first language is not English, I sometimes use words that are not correct in the context.

      I am looking for a VERY practical KDE centered (non-CLI) talk about what to do, how to do it, why one method should be used over another etc. All explained in the simplest way.

      One of the best guides I have found online is this:

      http://axion.physics.ubc.ca/pgp-begin.html

      But it does not use KDE, KGpg, Kmail, Kopete etc. as the centre of it. And as we are in the Kubuntu forum, and more - in the Help the New Guy forum, I thought it might be a good idea to start really basic.

      What matematically is behind PGP and related systems is actually not interesting for me right now. It is enough for me to know that it works and that it can be trusted. I am interested in the practical use of it.
      Regards,
      Oceanwatcher
      Blog: http://www.wisnaes.com/
      Pictures: http://www.oceanwatcher.com/
      Software tips (in Norwegian): http://www.datahverdag.com/

      Comment


        #4
        Re: Encryption - how to use and how to make sense of it all

        You might find this useful.
        https://help.ubuntu.com/community/GnuPrivacyGuardHowto

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