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dguido's profile
Dan Guido
Dan Guido
Dan Guido
@dguido

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Dan Guido

@dguido

CEO @trailofbits, organizer @EmpireHacking, director @hack_secure. Open DMs.

Brooklyn, NY
trailofbits.com
Joined April 2008

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    Dan Guido‏ @dguido 7 May 2016

    Lazytweet: Has anyone done a technical comparison between OpenVPN and IPSec/IKEv2? Eg., pros/cons of major protocol and implementation diffs

    4:22 PM - 7 May 2016
    • 6 Retweets
    • 14 Likes
    • NEIGHTDOG Master SFPN Mike Brancato Scott Guillaume Ceccarelli Toxic Megacolon Josh Yavor A.Douglas Umair Bari
    6 replies 6 retweets 14 likes
      1. New conversation
      2. Dino A. Dai Zovi‏ @dinodaizovi 8 May 2016
        Replying to @dguido

        @dguido Use IKEv2 w/ Suite B algos (i.e. AES GCM) and key sizes. Disable short key lengths, some clients default to them for compat (iOS).

        1 reply 0 retweets 1 like
      3. Dino A. Dai Zovi‏ @dinodaizovi 8 May 2016
        Replying to @dinodaizovi

        @dguido TLS (used by OpenVPN) is overkill for use between trusted peers and enables attacks that are less risk elsewhere (i.e. heartbleed).

        2 replies 2 retweets 2 likes
      4. Dan Guido‏ @dguido 8 May 2016
        Replying to @dinodaizovi

        @dinodaizovi Oh, I've made my choice (and it agrees with yours I see)! I'm looking for more detailed info to back it up now.

        1 reply 0 retweets 0 likes
      5. Dan Guido‏ @dguido 8 May 2016
        Replying to @dguido

        @dinodaizovi AFAICT the one thing OpenVPN has on IPSec (by a mile) is ease of config and there is really something to be said for that.

        3 replies 1 retweet 2 likes
      6. the grugq‏ @thegrugq 8 May 2016
        Replying to @dguido

        @dguido @dinodaizovi I think @kennwhite did a big thing on IPSec config.

        1 reply 0 retweets 0 likes
      7. Kenn White‏Verified account @kennwhite 8 May 2016
        Replying to @thegrugq

        @thegrugq @dguido @dinodaizovi imo best config (for both) is Streisand: https://github.com/jlund/streisand  My pref is IPSec IKEv2 w/ GCM mode sans lt2p

        2 replies 6 retweets 17 likes
      8. Kenn White‏Verified account @kennwhite 8 May 2016
        Replying to @kennwhite

        @thegrugq @dguido @dinodaizovi and 99.999% of VPN services are steaming piles at best, fully surveilled at worst.

        2 replies 1 retweet 2 likes
      9. Dino A. Dai Zovi‏ @dinodaizovi 8 May 2016
        Replying to @kennwhite

        @kennwhite @thegrugq @dguido Yeah, I wouldn't recommend them for much beyond routing around streaming video country restrictions.

        0 replies 0 retweets 0 likes
      10. End of conversation
      1. Andrea Barisani‏Verified account @AndreaBarisani 7 May 2016
        Replying to @dguido

        @dguido yes, one is easy to configure the other one drives you to near insanity every single time...you figure out which one ;-P

        0 replies 0 retweets 1 like
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      1. Ryan Lackey‏ @octal 7 May 2016
        Replying to @dguido

        @dguido yes, but unfortunately the next answer is "no" (for 3-6mo values of no)

        0 replies 0 retweets 1 like
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      1. Toxic Megacolon‏ @bizzyunderscore 8 May 2016
        Replying to @dguido

        @dguido I wish there were better how-tos online for popular IPSec clients like osx/iOS. Getting one connected to cisco IOS should be easier!

        0 replies 0 retweets 0 likes
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      1. Joe Klein#҈̢͋ͬͦͬͬͤ҉‏ @joeklein 7 May 2016
        Replying to @dguido

        @dguido rfc4308 + rfc7296 + RFC7427 + RFC7670

        0 replies 0 retweets 0 likes
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      1. Joe Klein#҈̢͋ͬͦͬͬͤ҉‏ @joeklein 7 May 2016
        Replying to @dguido

        @dguido IKEv2 = IPv6 + IPv4 + Peer Authorization Database + EAP-IKEv2 Payloads + new of Internet Key Exchange Version 2 (IKEv2) Parameters

        0 replies 0 retweets 0 likes
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