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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 12 Mar 2020
      • Report Tweet
      • Report NetzDG Violation

      Hector Martin Retweeted Guido Appenzeller

      The Chief Product Officer at Yubico thinks "long passwords" offer little security. 2ee75ee4e4b359576257fc7d3bfc5ec75d358f10e17caf9e668e09cc032af36d That is the SHA256 of the 76-character passphrase to my master backups, plus '!'. Pwn me. I'm waiting.https://twitter.com/appenz/status/1238121735142031360 …

      Hector Martin added,

      Guido Appenzeller @appenz
      Replying to @appenz @marcan42 and 2 others
      And I am not sure how effective wrapping really is. The secure element has very low compute performance as it needs to operate with just NFC power. Today brute force attacks run on huge farms of cheap AWS spot instances and even long PINs/Passwords offer little protection.
      9 replies 25 retweets 126 likes
    2. Guido Appenzeller‏ @appenz 12 Mar 2020
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      Replying to @marcan42

      I never said that, and I think it's unfair to mischaracterize our discussion. What I said is that average entropy of user passwords today is somewhere around 40-50 bits. Wrapping with those passwords is ineffective against modern attacks.

      3 replies 0 retweets 0 likes
    3. Hector Martin‏ @marcan42 12 Mar 2020
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      Replying to @appenz

      You said that afterwards :-) The fact is, properly long passwords *do* provide significant cryptographic security, which is why key wrapping is still a good idea.

      2 replies 0 retweets 6 likes
      Hector Martin‏ @marcan42 12 Mar 2020
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      Replying to @marcan42 @appenz

      It's also true that key wrapping would've made that bug that you guys had with not checking PINs *at all* on the OpenPGP applet impossible, because no PIN = no key.

      9:09 AM - 12 Mar 2020
      • 6 Likes
      • kackerhitty George Hafiz NullMind Billy Sellis
      0 replies 0 retweets 6 likes

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