The algo name should match between the FIT's signature node and the U-Boot's control FDT.

If we do not check it, U-Boot's control FDT can expect sha512 hash but nothing will prevent to accept image with sha1 hash if the signature is correct.

Signed-off-by: Matthieu CASTET castet.matthieu@free.fr --- lib/rsa/rsa-verify.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/lib/rsa/rsa-verify.c b/lib/rsa/rsa-verify.c index 2057f6819d..b9c800c7dc 100644 --- a/lib/rsa/rsa-verify.c +++ b/lib/rsa/rsa-verify.c @@ -439,12 +439,17 @@ static int rsa_verify_with_keynode(struct image_sign_info *info, struct key_prop prop; int length; int ret = 0; + const char *algo;

if (node < 0) { debug("%s: Skipping invalid node", __func__); return -EBADF; }

+ algo = fdt_getprop(blob, node, "algo", NULL); + if (strcmp(info->name, algo)) + return -EFAULT; + prop.num_bits = fdtdec_get_int(blob, node, "rsa,num-bits", 0);

prop.n0inv = fdtdec_get_int(blob, node, "rsa,n0-inverse", 0);