tree 90835edf15c47b7d1277ae59e6d04d2e3897f5ff
parent 771e1bd1ed58ef791ccc41a2b9d96e257403abec
author Andrew de los Reyes <adlr@chromium.org> 1314744320 -0700
committer Andrew de los Reyes <adlr@chromium.org> 1314901948 -0700

Support for signing with multiple signature files, key sizes.

If we do a key-rotation in the future, we'll want to sign updates with
two keys. This CL changes the delta generator in a
backwards-compatible way to take multiple key lengths and signature
files: On a command line where one could be given before, now multiple
may be given by colon-delimiting them.

Also, adds two unittests to show that old and new clients can
successfully verify a payload when it's signed by old and new keys.

BUG=chromium-os:19873
TEST=unittests; tested on device

Change-Id: I2063095773a5c71c32704c30b12d6eab2a5f3b80
Reviewed-on: http://gerrit.chromium.org/gerrit/6999
Reviewed-by: Andrew de los Reyes <adlr@chromium.org>
Tested-by: Andrew de los Reyes <adlr@chromium.org>