Alex Vaghin
7e016f1856
This change improves tests speed further by switching to EC keys where possible. We are also switching to EC-based token certs for TLS-SNI-x challenges in this change. I've confirmed it works with Let's Encrypt production servers as well, by fulfilling TLS-SNI-01 challenge for a test domain using autocert.Manager. Change-Id: I07c532d535ba413af97463dd97cca3d650dfccee Reviewed-on: https://go-review.googlesource.com/27439 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>