ECDSA P-256 keys are smaller than RSA 2048 keys and signing operations are faster. Change-Id: I735f358f17ada4569de307a7af2934d4abf69b91 Reviewed-on: https://go-review.googlesource.com/28851 Run-TryBot: Alex Vaghin <ddos@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Alex Vaghin <ddos@google.com>