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rootkovska's profile
Joanna Rutkowska
Joanna Rutkowska
Joanna Rutkowska
Verified account
@rootkovska

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Joanna RutkowskaVerified account

@rootkovska

Strategy & security at @golemproject. Previously: founder of @QubesOS and Invisible Things Lab. Distrusts computers.

Warsaw
blog.invisiblethings.org
Joined July 2014

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    Joanna Rutkowska‏Verified account @rootkovska Nov 3

    I've been trying to figure the essential _features_ of the The Ethereum (computer) vs. mere _implementation_ "details"; so far have come up with: 1. strong integrity protection for your code (customarily called "smart contract"), 2. strong availability for your code. (1/)

    1:44 AM - 3 Nov 2018
    • 26 Retweets
    • 67 Likes
    • 🍨 munch 🍨 chris Veselin Kostadinov Mario Sangiorgio Crypto Griff Agile David Unfried The Nightly Pitch Jacek (Jomsborg)
    7 replies 26 retweets 67 likes
      1. New conversation
      2. Joanna Rutkowska‏Verified account @rootkovska Nov 3

        (2/) The price we pay for these: 1. Lack of confidentiality for our code, 2. Huge performance penalty. We now try to fix both problems by reducing decentralization: offchain computation in TEEs like SGX (which always will have single root of trust -- CPU vendors), sharding.

        4 replies 5 retweets 33 likes
        Show this thread
      3. Joanna Rutkowska‏Verified account @rootkovska Nov 3

        (3/) The "decentralization" is a mere implementation detail. OT1H it allows us to have integrity and availability for our code, OT2H it ruins privacy and performance. The challenge is to find the right tradeoff. But "decentralization" doesn't give us anything in itself, does it?

        7 replies 7 retweets 25 likes
        Show this thread
      4. Joanna Rutkowska‏Verified account @rootkovska Nov 3

        (4/) So, if I could, say, launch a traditional server onto an Earth's orbit, perhaps this would be "reasonably" as good a solution as Ethereum? Assuming the root account was disabled and the cost of shooting it down (physically) was high enough?

        12 replies 8 retweets 27 likes
        Show this thread
      5. End of conversation
      1. New conversation
      2. Rick Dudley‏ @AFDudley0 Nov 3
        Replying to @rootkovska

        By essential feature do you mean what is advertised or what dapp developers and end-users' want/expect?

        1 reply 0 retweets 1 like
      3. Joanna Rutkowska‏Verified account @rootkovska Nov 3
        Replying to @AFDudley0

        Users, in general, be that end-users or developers.

        1 reply 0 retweets 1 like
      4. Rick Dudley‏ @AFDudley0 Nov 3
        Replying to @rootkovska

        Users want to be sure their transactions are: * Pseudonymous (which is often confused for private!) * Safe (free of unintended side-effects) * Unstoppable (some validator can always be accessed and used. Most users expect this to be a 3rd party, which breaks the model.)

        1 reply 0 retweets 4 likes
      5. Joanna Rutkowska‏Verified account @rootkovska Nov 3
        Replying to @AFDudley0

        Interesting you're looking at things from the transactions pov, while I'm seeing things from the computing platform pov.

        1 reply 0 retweets 4 likes
      6. Rick Dudley‏ @AFDudley0 Nov 4
        Replying to @rootkovska

        The users in the space are somewhat odd, they want an alternate computing substrate, but they don't entirely realize this, so it requires looking at the problem from top and bottom. The general ignorance regarding anything RF in the space is almost as troubling as the OPSEC.

        0 replies 0 retweets 0 likes
      7. End of conversation
      1. New conversation
      2. Nick 'unchecked overflows' Johnson‏ @nicksdjohnson Nov 4
        Replying to @rootkovska @maurelian_

        You can have these features just by widely distributing a signed copy of your code. What ethereum gives you that this doesn't is consensus: broad agreement on the state produced by running your code.

        1 reply 0 retweets 2 likes
      3. Thomas Barker‏ @thomasbarkercom Nov 4
        Replying to @nicksdjohnson @rootkovska @maurelian_

        And in that vein, guess it's the consensus mechanism over a bunch of signed transactions that is "the computer". The EVM bit is a feature that let's you reduce those statements into a convinient view.

        0 replies 0 retweets 1 like
      4. End of conversation
      1. MⒶrtin HⒶboⓋštiak‏ @kixunil Nov 3
        Replying to @rootkovska

        You forgot one essential feature: to make the creators rich even if they don't provide what they promised.

        0 replies 0 retweets 1 like
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      1. michael‏ @blurpesec Nov 3
        Replying to @rootkovska

        "2. strong availability for your code." By this, i'm assuming you mean robustness? The part of this that I care about more is resistance to censorship. There is a lot of good that can be contributed to by the use of these types of technologies.

        0 replies 0 retweets 0 likes
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      1. Overclocked Jesus‏ @ovrclockedjesus Nov 3
        Replying to @rootkovska @golemproject

        3. Create cookie cutter tokens to sell to suckers and not run any code due to slowness and bloating.

        0 replies 0 retweets 0 likes
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      1. rabbitear‏ @rabbitear Nov 3
        Replying to @rootkovska

        Those words don't exist if you read the white papers

        0 replies 0 retweets 0 likes
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