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  • 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

    Simon Glass