tree 4f4d2302f4b6fa01e9a2214dee6bfe75e220a010
parent fbabc0f947808e457148bc58f32ad71cc07d3488
author Simon Glass <sjg@chromium.org> 1371161402 -0700
committer Tom Rini <trini@ti.com> 1372256336 -0400

image: Add RSA support for image signing

RSA provides a public key encryption facility which is ideal for image
signing and verification.

Images are signed using a private key by mkimage. Then at run-time, the
images are verified using a private key.

This implementation uses openssl for the host part (mkimage). To avoid
bringing large libraries into the U-Boot binary, the RSA public key
is encoded using a simple numeric representation in the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>