Bootstrapping Secure Communication without Leaking Metadata (coming soon!)
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Alpenhorn is the first system for initiating an encrypted connection between two users that provides strong privacy and forward secrecy guarantees for all metadata. Alpenhorn does not require out-of-band communication other than knowing the other user's email address. Learn more by reading our OSDI 2016 paper.

We will publish our source code soon! In the meantime, you can follow our work by joining our email list.