X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/d73e45df63ef6602fa32bd3e196d20735a0b69b5..1d28cc061677bd07d9bed48dd84bd5c590247043:/src/src/pdkim/signing.h

diff --git a/src/src/pdkim/signing.h b/src/src/pdkim/signing.h
index 04288103e..7760ce73f 100644
--- a/src/src/pdkim/signing.h
+++ b/src/src/pdkim/signing.h
@@ -1,7 +1,8 @@
 /*
  *  PDKIM - a RFC4871 (DKIM) implementation
  *
- *  Copyright (C) 2016  Exim maintainers
+ *  Copyright (C) 1995 - 2020  Exim maintainers
+ *  SPDX-License-Identifier: GPL-2.0-or-later
  *
  *  RSA signing/verification interface
  */
@@ -19,39 +20,53 @@
 #elif defined(SIGN_GNUTLS)
 # include <gnutls/gnutls.h>
 # include <gnutls/x509.h>
-#  include <gnutls/abstract.h>
+# include <gnutls/abstract.h>
 #elif defined(SIGN_GCRYPT)
-#  include <gcrypt.h>
-#  include <libtasn1.h>
+# include <gcrypt.h>
+# include <libtasn1.h>
 #endif
 
 #include "../blob.h"
 
+typedef enum {
+  KEYTYPE_RSA,
+  KEYTYPE_ED25519
+} keytype;
+
+typedef enum {
+  KEYFMT_DER,		/* an asn.1 structure */
+  KEYFMT_ED25519_BARE	/* just the key */
+} keyformat;
+
 
 #ifdef SIGN_OPENSSL
 
 typedef struct {
-  EVP_PKEY * key;
+  keytype	keytype;
+  EVP_PKEY *	key;
 } es_ctx;
 
 typedef struct {
-  EVP_PKEY * key;
+  keytype	keytype;
+  EVP_PKEY *	key;
 } ev_ctx;
 
 #elif defined(SIGN_GNUTLS)
 
 typedef struct {
-  gnutls_x509_privkey_t key;
+  keytype	keytype;
+  gnutls_privkey_t key;
 } es_ctx;
 
 typedef struct {
+  keytype	keytype;
   gnutls_pubkey_t key;
 } ev_ctx;
 
 #elif defined(SIGN_GCRYPT)
 
 typedef struct {
-  int	keytype;
+  keytype	keytype;
   gcry_mpi_t n;
   gcry_mpi_t e;
   gcry_mpi_t d;
@@ -63,7 +78,7 @@ typedef struct {
 } es_ctx;
 
 typedef struct {
-  int	keytype;
+  keytype	keytype;
   gcry_mpi_t n;
   gcry_mpi_t e;
 } ev_ctx;
@@ -72,12 +87,12 @@ typedef struct {
 
 
 extern void exim_dkim_init(void);
-extern blob * exim_dkim_data_append(blob *, int *, uschar *);
+extern gstring * exim_dkim_data_append(gstring *, uschar *);
 
-extern const uschar * exim_dkim_signing_init(uschar *, es_ctx *);
-extern const uschar * exim_dkim_sign(es_ctx *, BOOL, blob *, blob *);
-extern const uschar * exim_dkim_verify_init(blob *, ev_ctx *);
-extern const uschar * exim_dkim_verify(ev_ctx *, BOOL, blob *, blob *);
+extern const uschar * exim_dkim_signing_init(const uschar *, es_ctx *);
+extern const uschar * exim_dkim_sign(es_ctx *, hashmethod, blob *, blob *);
+extern const uschar * exim_dkim_verify_init(blob *, keyformat, ev_ctx *, unsigned *);
+extern const uschar * exim_dkim_verify(ev_ctx *, hashmethod, blob *, blob *);
 
 #endif	/*DISABLE_DKIM*/
 /* End of File */