[PATCH] image-fit: ignore rsa by image selection

[Sascha Hauer]

On Thu, Mar 11, 2021 at 05:07:21PM +0000, Denis Osterland-Heim wrote:
> From: Denis Osterland-Heim <Denis.Osterland at diehl.com>
> 
> For hash algorithm selection, only the first argument of the tuple is
> needed. The ',' is included to avoid false-positive matches.
> 
> Signed-off-by: Denis Osterland-Heim <Denis.Osterland at diehl.com>
> ---
>  common/image-fit.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)

Applied, thanks

Sascha

> 
> diff --git a/common/image-fit.c b/common/image-fit.c
> index 538e61f51..2c5ef7f68 100644
> --- a/common/image-fit.c
> +++ b/common/image-fit.c
> @@ -230,11 +230,9 @@ static struct digest *fit_alloc_digest(struct device_node *sig_node,
>  return ERR_PTR(-EINVAL);
>  }
> 
> -if (strcmp(algo_name, "sha1,rsa2048") == 0) {
> +if (strncmp(algo_name, "sha1,", 5) == 0) {
>  algo = HASH_ALGO_SHA1;
> -} else if (strcmp(algo_name, "sha256,rsa2048") == 0) {
> -algo = HASH_ALGO_SHA256;
> -} else if (strcmp(algo_name, "sha256,rsa4096") == 0) {
> +} else if (strncmp(algo_name, "sha256,", 7) == 0) {
>  algo = HASH_ALGO_SHA256;
>  } else{
>  pr_err("unknown algo %s\n", algo_name);
> --
> 2.30.2
> 
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