• x1gma@lemmy.world
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    4 months ago

    How in the fuck are people actually defending signal for this, and with stupid arguments such as windows is compromised out of the box?

    You. Don’t. Store. Secrets. In. Plaintext.

    There is no circumstance where an app should store its secrets in plaintext, and there is no secret which should be stored in plaintext. Especially since this is not some random dudes random project, but a messenger claiming to be secure.

    • refalo@programming.dev
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      4 months ago

      How in the fuck are people actually defending signal for this

      Probably because Android (at least) already uses file-based encryption, and the files stored by apps are not readable by other apps anyways.

      And if people had to type in a password every time they started the app, they just wouldn’t use it.

      • uis@lemm.ee
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        4 months ago

        AFAIK Android encrypts entire fs with one key. And ACL is not encryption.

      • Liz@midwest.social
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        4 months ago

        Popular encrypted messaging app Signal is facing criticism over a security issue in its desktop application.

        Emphasis mine.

        • ChapulinColorado@lemmy.world
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          4 months ago

          I think the point is the developers might have just migrated the code without adjustments since that is how it was implemented before. Similar to how PC game ports sometimes run like shit since they are a close 1-1 of the original which is not always the most optimized or ideal, but the quickest to output.

          • x1gma@lemmy.world
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            4 months ago

            Been a few days since using electron, but AFAIK electron can’t be used as a wrapper for android apps, or can it? Or is their android app a web app wrapped into a “native” android app too?

            Also, since this seems to be an issue since 2018, 6 years should be plenty to rewrite using a native secure storage…

    • lemmyvore@feddit.nl
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      4 months ago

      You. Don’t. Store. Secrets. In. Plaintext.

      SSH stores the secret keys in plaintext too. In a home dir accessible only by the owning user.

      I won’t speak about Windows but on Linux and other Unix systems the presumption is that if your home dir is compromised you’re fucked anyway. Effort should be spent on actually protecting access to the home personal files not on security theater.

      • x1gma@lemmy.world
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        4 months ago

        Kinda expected the SSH key argument. The difference is the average user group.

        The average dude with a SSH key that’s used for more than their RPi knows a bit about security, encryption and opsec. They would have a passphrase and/or hardening mechanisms for their system and network in place. They know their risks and potential attack vectors.

        The average dude who downloads a desktop app for a messenger that advertises to be secure and E2EE encrypted probably won’t assume that any process might just wire tap their whole “encrypted” communications.

        Let’s not forget that the threat model has changed by a lot in the last years, and a lot of effort went into providing additional security measures and best practices. Using a secure credential store, additional encryption and not storing plaintext secrets are a few simple ones of those. And sure, on Linux the SSH key is still a plaintext file. But it’s a deliberate decision of you to keep it as plaintext. You can at least encrypt with a passphrase. You can use the actual working file permission model of Linux and SSH will refuse to use your key with loose permissions. You would do the same on Windows and Mac and use a credential store and an agent to securely store and use your keys.

        Just because your SSH key is a plaintext file and the presumption of a secure home dir, you still wouldn’t do a ~/passwords.txt.

        • lemmyvore@feddit.nl
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          4 months ago

          If someone gets access they can delete your keys, or set up something that can intercept your keys in other ways.

          The security of data at rest is just one piece of the puzzle. In many systems the access to the data is considered much more important than whether the data itself is encrypted in one particular scenario.

        • dave@programming.dev
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          4 months ago

          Well yes, but also how would users react if they had to type in their passphrase every time they open the app? This is also exactly what we’re giving up everywhere else by clicking ‘remember this device’.

    • Possibly linux@lemmy.zip
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      4 months ago

      If someone has access to your machine you are screwed anyway. You need to store the encryption key somewhere

      • x1gma@lemmy.world
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        4 months ago

        Yes, in your head, and in your second factor, if possible, keeping them always encrypted at rest, decrypting at the latest possible moment and not storing (decrypted) secrets in-memory for longer than absolutely necessary at use.

    • uis@lemm.ee
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      4 months ago

      You. Don’t. Store. Secrets. In. Plaintext.

      Ok. Enter password at every launch.