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According to the Diffie-Hellman key exchange get affected by logjam, and openID uses this to establish an association. So how this going to affect OpenID?

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logjam is not (even remotely) a break of the Diffie-Hellman key exchange method. It is a weakness of the TLS protocol. It affects only sessions, not credentials. It will soon be fixed. I estimate zero impact on OpenID. The "bad guys" cannot do MITM, only governments and ISPs could (in principle) do MITM.

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    No longer "in principle". -> Wiki: Quantum Insert – StackzOfZtuff May 21 '15 at 10:19
  • @StackzOfZtuff Damn, man. – Atsby May 21 '15 at 10:26
  • There are plenty of opportunities for even run of the mill bad guys to MITM... Running rogue hotspots in hotels/airports/etc... makes it very easy to achieve... – Bruno Rohée Oct 16 '15 at 17:31

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