Builtin macros for sha3-hash and ed25519-signing support

[exim.git] / src / src / pdkim / signing.h

diff --git a/src/src/pdkim/signing.h b/src/src/pdkim/signing.h
index 61e241e5dfe1febd44809076fe56f2a62f3ea149..8d569812fdb2ed55984192b6ea4e69e7afc513c7 100644 (file)
--- a/src/src/pdkim/signing.h
+++ b/src/src/pdkim/signing.h
@@ -1,7 +1,7 @@
 /*
  *  PDKIM - a RFC4871 (DKIM) implementation
  *
- *  Copyright (C) 2016  Exim maintainers
+ *  Copyright (C) 2017  Exim maintainers
  *
  *  RSA signing/verification interface
  */
@@ -19,39 +19,53 @@
 #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 +77,7 @@ typedef struct {
 } es_ctx;
 
 typedef struct {
-  int  keytype;
+  keytype      keytype;
   gcry_mpi_t n;
   gcry_mpi_t e;
 } ev_ctx;
@@ -76,7 +90,7 @@ 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 *, hashmethod, blob *, blob *);
-extern const uschar * exim_dkim_verify_init(blob *, ev_ctx *);
+extern const uschar * exim_dkim_verify_init(blob *, keyformat, ev_ctx *);
 extern const uschar * exim_dkim_verify(ev_ctx *, hashmethod, blob *, blob *);
 
 #endif /*DISABLE_DKIM*/