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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. Zach Brogan  💾‏ @zbrogz 23 Oct 2017
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      Replying to @marcan42

      Maybe having access to the same model safe, but not necessarily a copy of the safe with the same contents. That would depend on situation.

      1 reply 0 retweets 0 likes
    2. Hector Martin‏ @marcan42 23 Oct 2017
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      Replying to @zbrogz

      For obfuscation it's always a copy of the safe with the same contents. Otherwise there is other security involved. Obfuscation is cloneable.

      1 reply 0 retweets 1 like
    3. Zach Brogan  💾‏ @zbrogz 23 Oct 2017
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      Replying to @marcan42

      Maybe we have a different understanding of what "security by obscurity" means. Consider: place an encrypted file on obscure url vs obvious

      1 reply 0 retweets 0 likes
    4. Hector Martin‏ @marcan42 23 Oct 2017
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      Replying to @zbrogz

      That's actually not obscurity, it's real security (akin to a password), assuming no directory listing etc.

      1 reply 0 retweets 0 likes
    5. Hector Martin‏ @marcan42 23 Oct 2017
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      Replying to @marcan42 @zbrogz

      Obviously there are potential pitfalls, but the concept is secure and putting security tokens in URLs is common practice.

      1 reply 0 retweets 0 likes
    6. Zach Brogan  💾‏ @zbrogz 23 Oct 2017
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      Replying to @marcan42

      Both passwords and obscurity rely on secrecy of some sort. So where is the line drawn between the two?

      1 reply 0 retweets 0 likes
    7. Hector Martin‏ @marcan42 23 Oct 2017
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      Replying to @zbrogz

      They are completely different things. Obfuscation is like giving your attacker your password, in a mangled form.

      1 reply 0 retweets 0 likes
    8. Hector Martin‏ @marcan42 23 Oct 2017
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      Replying to @marcan42 @zbrogz

      You can't crack a password if it has sufficient entropy. You can always reverse engineer obfuscation.

      1 reply 0 retweets 0 likes
    9. Zach Brogan  💾‏ @zbrogz 23 Oct 2017
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      Replying to @marcan42

      Which of these is more likely to be attacked? user@ssh_url.com:22, password or user@ssh_url.com:24, password

      1 reply 0 retweets 0 likes
    10. Hector Martin‏ @marcan42 23 Oct 2017
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      Replying to @zbrogz

      Would you use a crappy password and rely on the nonstandard port to deter attackers? That's what security *through* obscurity means.

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 23 Oct 2017
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      Replying to @marcan42 @zbrogz

      The line is simply what is actually secure (mathematically), and what isn't. A password with sufficient entropy is secure. Not a 16-bit port

      4:32 PM - 23 Oct 2017
      1 reply 0 retweets 0 likes
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        2. Hector Martin‏ @marcan42 23 Oct 2017
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          Replying to @marcan42 @zbrogz

          Real crypto is secure if the key is kept secret. That isn't "obscurity". Obfuscation isn't secure because you're giving out your code.

          1 reply 0 retweets 0 likes
        3. Hector Martin‏ @marcan42 23 Oct 2017
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          Replying to @marcan42 @zbrogz

          And proprietary crypto may be secure but most likely isn't because crypto is hard, and thus should be considered security through obscurity.

          2 replies 0 retweets 0 likes
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