Imperfect Forward Secrecy: How Diffie-Hellman Fails in Practice

ACM Conference on Computer and Communications Security, 2015.

Cited by: 410|Bibtex|Views182|DOI:https://doi.org/10.1145/2810103.2813707
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Abstract:

We investigate the security of Diffie-Hellman key exchange as used in popular Internet protocols and find it to be less secure than widely believed. First, we present Logjam, a novel flaw in TLS that lets a man-in-the-middle downgrade connections to \"export-grade\" Diffie-Hellman. To carry out this attack, we implement the number field s...More

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