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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 27 May 2020
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      PSA: Your ssh-rsa keys are NOT BEING DEPRECATED in ssh. ssh-rsa keys can, under the hood, be used with SHA-1 signatures or SHA-256 signatures. You don't need to regenerate your keys. No need to panic.

      2 replies 31 retweets 82 likes
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    2. Hector Martin‏ @marcan42 27 May 2020
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      OpenSSH's advisory was worded very confusingly, but the way it works is that ssh-rsa *keys* can be used with both the ssh-rsa *algorithm* and the rsa-sha2-256 *algorithm*. If both sides support the latter then there is no SHA1 in use.

      2 replies 6 retweets 40 likes
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    3. Jessica  🌙‏ @jessidhia 27 May 2020
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      Replying to @marcan42

      I tried to migrate to ed25519 keys years ago but every once in a while I find some service or app that only supports rsa...

      1 reply 0 retweets 2 likes
      Hector Martin‏ @marcan42 27 May 2020
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      Replying to @jessidhia

      I largely migrated to ed25519 (with a backup RSA key for that stuff)... then migrated back to RSA to be able to use YubiKeys.

      9:25 PM - 27 May 2020
      • 5 Likes
      • Smylers Ridley @ a safe distance Jernej Simončič Jessica 🌙 Billy
      1 reply 0 retweets 5 likes
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        1. Ridley @ a safe distance‏ @11rcombs 28 May 2020
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          Replying to @marcan42 @jessidhia

          don't the newer ones support ECC?

          1 reply 0 retweets 0 likes
        2. Hector Martin‏ @marcan42 28 May 2020
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          Replying to @11rcombs @jessidhia

          It seems YubiKey 5.2.3 and above *finally* support ed25519. I might have to upgrade...

          1 reply 0 retweets 0 likes
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