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colmmacc's profile
Colm MacCárthaigh
Colm MacCárthaigh
Colm MacCárthaigh
@colmmacc

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Colm MacCárthaigh

@colmmacc

AWS, Apache, Crypto, Irish Music, Haiku, Photography

Seattle
notesfromthesound.com
Joined April 2008

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    1. Colm MacCárthaigh‏ @colmmacc 26 Mar 2018
      • Report Tweet
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      O.k. this is going to be long tweet thread, but I promise it's worth it :) ... as long as you're into distributed systems, and network encryption, but then WHO ISN"T INTO DISTRIBUTED SYSTEMS AND NETWORK ENCRYPTION? Lame people, that's who ...

      15 replies 444 retweets 820 likes
      Show this thread
    2. Colm MacCárthaigh‏ @colmmacc 26 Mar 2018
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      O.k., so here's the deal; TLS1.3 is coming, very very soon now, A SHINY NEW RFC, and we can BEHOLD ITS GREATNESS, because it is AWESOME. Even with all its flaws, it is AWESOME and BETTER than TLS1.2 and everything before.

      1 reply 12 retweets 53 likes
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    3. Colm MacCárthaigh‏ @colmmacc 26 Mar 2018
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      TLS1.3 fixes a really dumb mistake that we made in prior versions. Basically it used to work like this ... Client: How're you doing Mr Server? Server: I'm good, here's my key so that we can talk Client: Oh yeah, here's my key, let's talk

      1 reply 3 retweets 29 likes
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    4. Colm MacCárthaigh‏ @colmmacc 26 Mar 2018
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      TLS1.3 now does this: Client: How're you doing Mr Server? Btw, here's my key so that we can talk Server: I'm good, here's my key, let's talk Look at that, ONE WHOLE PIECE OF SMALLTALK SAVED. That's the biggest benefit, basically, it's faster.

      2 replies 11 retweets 82 likes
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    5. Colm MacCárthaigh‏ @colmmacc 26 Mar 2018
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      The other benefit is that all means we get something called forward secrecy. WHAT IS FORWARD SECRECY? It just means that if someone is listening in to our encrypted conversation, they can't decrypt it later even if they break into the client or server and get their keys.

      2 replies 6 retweets 36 likes
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    6. Colm MacCárthaigh‏ @colmmacc 26 Mar 2018
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      That's because of DIFFIE and HELLMAN, and it is insane and magic and a cool use of math. Anyway it works. O.k., the next thing that TLS1.3 does though is something called 0-RTT and it looks like this ... Client: Hey server, we've talked before, so I'm just going to talk again

      2 replies 0 retweets 42 likes
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    7. Royce Williams‏ @TychoTithonus 26 Mar 2018
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      Replying to @colmmacc

      ... and don't forget MERKLE! https://en.wikipedia.org/wiki/Diffie%E2%80%93Hellman_key_exchange#Name …pic.twitter.com/QGvAz9Oto7

      1 reply 0 retweets 0 likes
      Colm MacCárthaigh‏ @colmmacc 26 Mar 2018
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      Replying to @TychoTithonus

      Sorry, I missed the tree for the forest!

      7:58 PM - 26 Mar 2018
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      • Matthew Hardeman Royce Williams
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