tree da4a744e642f5014c3a1085097590bd4a5997f1c
parent 58c60900ac3682fab08f64373bdd1020713b48f7
author Kenny Root <kroot@google.com> 1381338875 -0700
committer Kenny Root <kroot@google.com> 1381439959 -0700

Add support for ECDSA signatures

This adds support for key version 5 which is an EC key using the NIST
P-256 curve parameters. OTAs may be signed with these keys using the
ECDSA signature algorithm with SHA-256.

Change-Id: Id88672a3deb70681c78d5ea0d739e10f839e4567