If a user has to call into your keyserver to get a key before they can start a conversation with a new friend, as you're the sole authority who can decrypt the Merkle tree entries - does that introduce any problems?
And how will you authenticate shredding requests? Does that just happen out-of-band?
If a user has to call into your keyserver to get a key before they can start a conversation with a new friend, as you're the sole authority who can decrypt the Merkle tree entries - does that introduce any problems?
And how will you authenticate shredding requests? Does that just happen out-of-band?