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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 25 Jun 2019
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      The effect of that is that if one of the distribution systems were some how compromised, this would not disclose the actual encryption keys. Very nice pattern to have!

      1 reply 1 retweet 18 likes
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    2. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      VPC Encryption compliments VPC Inter-Region Peering, which we've been similarly encrypting (with similar key derivation) from the day it launched. Underneath, and in addition to, all of this is the Lever Link Encryption Project.

      1 reply 2 retweets 13 likes
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    3. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      The Lever Link Encryption Project has been a truly massive endeavor to strongly encrypt, for now and all time, every network link that is in any way out of AWS physical control.

      1 reply 1 retweet 18 likes
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    4. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      Physical control means inside a facility we own and operate; and sometimes it means secure ducting over short distances with cool lasers that can detect any interference.

      1 reply 2 retweets 16 likes
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    5. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      If a link is outside our premises, or crossing an ocean, we encrypt it. For encryption, we use AES-256 again, with MACsec or Optical Layer encryption, with some more clever key agreement schemes that we had to invent! But don't worry, they are reassuringly boring.

      2 replies 3 retweets 16 likes
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    6. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      Incidentally "Lever" is named for https://en.wikipedia.org/wiki/Mavis_Batey …pic.twitter.com/4AxSWVa9h5

      1 reply 8 retweets 31 likes
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    7. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      Lever encryption and VPC Encryption or Inter-Region Peering often happen at the same time, e.g. packets crossing between AZs or regions. That's two layers of no-configuration required pervasive cryptography.

      1 reply 1 retweet 9 likes
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    8. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      h/t to my colleague and Lever lead David Sinn for all that info!

      1 reply 1 retweet 12 likes
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    9. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      Now, none of this means that you should not use TLS or other encryption protocols in your own applications. Network Encryption is awesome, but does not provide anti-replay, or application-to-application authentication. These new protocols are designed to fill gaps.pic.twitter.com/uP9NXXz9sj

      2 replies 17 retweets 61 likes
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    10. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      Of course it's great too to have a built-in mechanism to protect legacy traffic that is not encrypted at all.

      1 reply 1 retweet 9 likes
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      Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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      These are first features I've ever worked on where is no API, nothing for you to do. This is all under the hood. There is no change to your experience running on AWS. Customers never see the encrypted traffic, we do the encryption and decryption for you.

      10:49 AM - 25 Jun 2019
      • 2 Retweets
      • 25 Likes
      • Gianfranco M. brandon fiquett 🖖🏻 Richard Bejtlich Paul Berg Jacob Gabrielson Sandro Manke (闪山) lana tinyrobots Scott Piper
      2 replies 2 retweets 25 likes
        1. New conversation
        2. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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          All of the encryption and decryption happens in hardware; and for VPC Encryption, it's custom silicon designed and built by Annapurna labs as part of our Nitro security system. That means we can all of this with no impact on performance. We've been in production for months!

          2 replies 4 retweets 34 likes
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        3. Colm MacCárthaigh‏ @colmmacc 25 Jun 2019
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          O.k. there you have it. VPC Encryption, Lever Link Encryption, Multi-Party key distribution, AES-256, no API or settings, just "on". AMA.

          11 replies 2 retweets 56 likes
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        4. End of conversation
        1. Jonathan Baker‏ @CloudKickOff 25 Jun 2019
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          Replying to @colmmacc

          Pay no attention to the man behind the curtain!

          0 replies 0 retweets 0 likes
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