We did not roll our own crypto. We used NaCl. The rationale is explained here - http://weaveworks.github.io/weave/how-it-works.html#crypto http://weaveworks.g

We did not roll our own crypto. We used NaCl. The rationale is explained here - http://weaveworks.github.io/weave/how-it-works.html#crypto http://weaveworks.github.io/weave/how-it-works.html#crypto We agree that other approaches are possible, but this is the one we picked for our first version.