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dguido's profile
Dan Guido
Dan Guido
Dan Guido
@dguido

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Dan Guido

@dguido

CEO @trailofbits, organizer @EmpireHacking, director @hack_secure. Open DMs.

Brooklyn, NY
trailofbits.com
Joined April 2008

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    Dan Guido‏ @dguido Jul 28

    Thanks @FEITIAN_Tech and good luck @Google for using this low quality plastic toy as a U2F key. It fell out of my pocket. Good thing I have a @Yubico backup.pic.twitter.com/WZQMYP4OkJ

    2:40 PM - 28 Jul 2018
    • 14 Retweets
    • 74 Likes
    • CRISPR-Cas66 The Mahnster Mash🧟 IT proletarian Gabor Heja Earthling👽 𝙹𝖊𝕟𝓷ì𝕗𝕖𝕣 ☆ (\/) ( ͡°,,,°) (\/) wobblyOps Richard Johnson
    15 replies 14 retweets 74 likes
      1. New conversation
      2. Matt "msw" Wilson‏ @_msw_ Jul 28
        Replying to @dguido

        Matt "msw" Wilson Retweeted Tim Dierks

        See also the Titan security chip toys?https://twitter.com/tdierks/status/1022977921798074368 …

        Matt "msw" Wilson added,

        Tim Dierks @tdierks
        Google's Titan security chip¹. Bottom, banana for scale. 1: I believe these are exemplars without silicon in them. pic.twitter.com/zWgGcp3EWL
        1 reply 0 retweets 0 likes
      3. Dan Guido‏ @dguido Jul 28
        Replying to @_msw_

        Titan chips are not in the “Titan” U2F keys. They are white-labeled Feitian keys, possibly with custom firmware.

        1 reply 0 retweets 1 like
      4. Matt "msw" Wilson‏ @_msw_ Jul 28
        Replying to @dguido

        I know... I didn't allude that they were the same or directly related other than in name. Maybe I alluded to a parallel as a toy mockup...

        1 reply 0 retweets 1 like
      5. Dan Guido‏ @dguido Jul 28
        Replying to @_msw_

        The real Titan chips are impressive. It would be far more compelling if they were used.

        1 reply 0 retweets 0 likes
      6. Matt "msw" Wilson‏ @_msw_ Jul 28
        Replying to @dguido

        🤔

        0 replies 0 retweets 0 likes
      7. End of conversation
      1. New conversation
      2. Karl‏ @supersat Jul 28
        Replying to @dguido

        will it snap back together or is it permanently borked?

        1 reply 0 retweets 1 like
      3. Dan Guido‏ @dguido Jul 28
        Replying to @supersat

        I glued it back together. Obviously, will replace with a new device ASAP.

        0 replies 0 retweets 1 like
      4. End of conversation
      1. New conversation
      2. Dave dwizzzle Weston‏ @dwizzzleMSFT Jul 28
        Replying to @dguido @FEITIAN_Tech and

        I had 3 break on me. I don't know of another BLE key that works with IPhones :(

        3 replies 0 retweets 2 likes
      3. Chris Rohlf‏ @chrisrohlf Jul 28
        Replying to @dwizzzleMSFT @dguido and

        Yep. Mine broke after a couple of weeks too.

        2 replies 0 retweets 1 like
      4. Dan Guido‏ @dguido Jul 28
        Replying to @chrisrohlf @dwizzzleMSFT and

        I’m only using a Feitian key as a stopgap until Yubico releases an iOS compatible one. I can’t wait to throw this one out.

        1 reply 0 retweets 3 likes
      5. 1 more reply
      1. New conversation
      2. Phil Ames‏ @philames Jul 29
        Replying to @dguido @FEITIAN_Tech and

        What kind of Yubico? The one on my keychain isn't exactly the most resilient either... (The plastic has entirely come off the opposite side)pic.twitter.com/BtQy5OvKmo

        2 replies 0 retweets 0 likes
      3. Dan Guido‏ @dguido Jul 29
        Replying to @philames @FEITIAN_Tech and

        I've found that the Yubikey 4 (USB-A) and Yubikey 4 Nano (USB-A and USB-C) are nearly indestructible.

        1 reply 0 retweets 0 likes
      4. Phil Ames‏ @philames Jul 29
        Replying to @dguido @FEITIAN_Tech and

        Yeah, no problems with my USB-A form factor but obviously not the USB-C one...

        0 replies 0 retweets 0 likes
      5. End of conversation
      1. Jeremy Boone‏ @uffeux Jul 28
        Replying to @dguido @FEITIAN_Tech and

        nice of them to leave some test points populated

        0 replies 0 retweets 5 likes
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      1. Lex Hi-Hat (3).wav‏ @markmossberg Jul 28
        Replying to @dguido @FEITIAN_Tech and

        man that is an adorable board thoughpic.twitter.com/tZfJjq2kLI

        0 replies 0 retweets 4 likes
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      1. Richard Johnson‏ @tab2space Sep 9
        Replying to @dguido @FEITIAN_Tech and

        Indeed. Had a Yubikey lost when metal keyring broke. Found it 5 weeks later, in a puddle of muddy water that had melted days and refrozen every night. Yubikey still worked perfectly

        0 replies 0 retweets 2 likes
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      1. FEITIAN Tech‏ @FEITIAN_Tech Jul 30
        Replying to @dguido @Google @Yubico

        Hi Dan, We deeply regret this whole incident and hope you will accept our sincerest apologies. Please contact our service at fido@ftsafe.com or at 408-352-5553 to replace the damaged product. Sincerely, FEITIAN Internationalpic.twitter.com/SiY9AbXdJC

        0 replies 0 retweets 2 likes
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      1. New conversation
      2. Ooqaarx‏ @ooqaarx Jul 28
        Replying to @dguido @tqbf and

        Is this really the final product or just some demo/proto version tested internally or with partners? I find it hard to believe they wouldn’t drop test the product before making a commercial version.

        1 reply 0 retweets 0 likes
      3. /^j(?:eremy\s)?v(o)\1rhis$/i‏ @jvoorhis Jul 28
        Replying to @ooqaarx @dguido and

        Appears to be the final product... You can buy small quantities online or contact them to buy/customize a fleet.

        1 reply 0 retweets 0 likes
      4. Ooqaarx‏ @ooqaarx Jul 28
        Replying to @jvoorhis @dguido and

        Well then it’s pretty sad especially if they were using yubikeys as a benchmark.

        1 reply 0 retweets 1 like
      5. /^j(?:eremy\s)?v(o)\1rhis$/i‏ @jvoorhis Jul 28
        Replying to @ooqaarx @dguido and

        Agreed, I was looking into these as an alternative for NFC myself.

        1 reply 0 retweets 0 likes
      6. Ooqaarx‏ @ooqaarx Jul 28
        Replying to @jvoorhis @dguido and

        Would like to see a single token that has slots for multiple keys. My keychain has more tokens than keys and my wallet is looking morbidly obese mainly because of smart cards. I live a sad life.

        1 reply 0 retweets 1 like
      7. /^j(?:eremy\s)?v(o)\1rhis$/i‏ @jvoorhis Jul 28
        Replying to @ooqaarx @dguido and

        This may sound atavistic, but didn't PKCS#11 / PIV have that part down?

        1 reply 0 retweets 0 likes
      8. Rogan Dawes‏ @RoganDawes Jul 29
        Replying to @jvoorhis @ooqaarx and

        Yes. Pkcs11 as a standard allows you to choose the slot of the device you are interfacing with. Depends on the device whether it supported it, though!

        1 reply 0 retweets 0 likes
      9. /^j(?:eremy\s)?v(o)\1rhis$/i‏ @jvoorhis Jul 29
        Replying to @RoganDawes @ooqaarx and

        PKCS#11 clients in practice also seem to implement different subsets of the standard, with onerous UX.

        1 reply 0 retweets 1 like
      10. 3 more replies

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