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);
 };