Re: [PATCH v4 1/9] ssh signing: preliminary refactoring and clean-up

> diff --git a/gpg-interface.c b/gpg-interface.c
> index 127aecfc2b0..31cf4ba3938 100644
> --- a/gpg-interface.c
> +++ b/gpg-interface.c
> @@ -15,6 +15,12 @@ struct gpg_format {
>  	const char *program;
>  	const char **verify_args;
>  	const char **sigs;
> +	int (*verify_signed_buffer)(struct signature_check *sigc,
> +				    struct gpg_format *fmt, const char *payload,
> +				    size_t payload_size, const char *signature,
> +				    size_t signature_size);
> +	int (*sign_buffer)(struct strbuf *buffer, struct strbuf *signature,
> +			   const char *signing_key);
>  };