Re: [PATCH v2 09/21] lib: rspdm: Initial commit of Rust SPDM

[Julian Braha]

Hi Alistair,

On 6/23/26 05:53, alistair23@xxxxxxxxx wrote:

> +config RSPDM
> +	bool "Rust SPDM"
> +	depends on RUST
> +	select CRYPTO
> +	select X509_CERTIFICATE_PARSER
> +	help
> +	  The Rust implementation of the Security Protocol and Data Model (SPDM)
> +	  allows for device authentication, measurement, key exchange and
> +	  encrypted sessions.
> +
> +	  Crypto algorithms negotiated with SPDM are limited to those enabled
> +	  in .config.  Users of SPDM therefore need to also select
> +	  any algorithms they deem mandatory.
This patch introduces an unmet dependency bug when the user enables
RSPDM without enabling ASYMMETRIC_PUBLIC_KEY_SUBTYPE:

WARNING: unmet direct dependencies detected for X509_CERTIFICATE_PARSER
  Depends on [n]: CRYPTO [=y] && ASYMMETRIC_KEY_TYPE [=n] &&
ASYMMETRIC_PUBLIC_KEY_SUBTYPE [=n]
  Selected by [y]:
  - RSPDM [=y] && RUST [=y]

- Julian Braha