alg_msg_data: Remove "sig" from member names

[secnet.git] / secnet.h

diff --git a/secnet.h b/secnet.h
index f2840db3bca2c5c7d9afb8d2dc05712f96766c2c..eb8bf0cc011fc883980f90226f7fe7c90e56122d 100644 (file)
--- a/secnet.h
+++ b/secnet.h
@@ -46,6 +46,7 @@
 #define MAX_PEER_ADDRS 5
 /* send at most this many copies; honour at most that many addresses */
 
+struct hash_if;
 struct comm_if;
 struct comm_addr;
 
@@ -363,8 +364,8 @@ extern init_module log_module;
 #define CL_PURE         0
 #define CL_RESOLVER     1
 #define CL_RANDOMSRC    2
-#define CL_RSAPUBKEY    3
-#define CL_RSAPRIVKEY   4
+#define CL_SIGPUBKEY    3
+#define CL_SIGPRIVKEY   4
 #define CL_COMM         5
 #define CL_IPIF         6
 #define CL_LOG          7
@@ -377,6 +378,11 @@ extern init_module log_module;
 
 struct buffer_if;
 
+struct alg_msg_data {
+    uint8_t *start;
+    int32_t len;
+};
+
 /* PURE closure requires no interface */
 
 /* RESOLVER interface */
@@ -411,21 +417,30 @@ struct random_if {
     random_fn *generate;
 };
 
-/* RSAPUBKEY interface */
+/* SIGPUBKEY interface */
 
-typedef bool_t rsa_checksig_fn(void *st, uint8_t *data, int32_t datalen,
-                              cstring_t signature);
-struct rsapubkey_if {
+typedef void sig_sethash_fn(void *st, struct hash_if *hash);
+typedef bool_t sig_unpick_fn(void *sst, struct buffer_if *msg,
+                            struct alg_msg_data *sig);
+typedef bool_t sig_checksig_fn(void *st, uint8_t *data, int32_t datalen,
+                              const struct alg_msg_data *sig);
+struct sigpubkey_if {
     void *st;
-    rsa_checksig_fn *check;
+    sig_sethash_fn *sethash; /* must be called before check, if non-0 */
+    sig_unpick_fn *unpick;
+    sig_checksig_fn *check;
 };
 
-/* RSAPRIVKEY interface */
+/* SIGPRIVKEY interface */
 
-typedef string_t rsa_makesig_fn(void *st, uint8_t *data, int32_t datalen);
-struct rsaprivkey_if {
+/* Appends the signature to msg.
+ * Can fail and returnn False, eg if the buffer is too small. */
+typedef bool_t sig_makesig_fn(void *st, uint8_t *data, int32_t datalen,
+                             struct buffer_if *msg);
+struct sigprivkey_if {
     void *st;
-    rsa_makesig_fn *sign;
+    sig_sethash_fn *sethash; /* must be called before sign, if non-0 */
+    sig_makesig_fn *sign;
 };
 
 /* COMM interface */
@@ -628,11 +643,12 @@ struct dh_if {
 
 /* HASH interface */
 
-typedef void *hash_init_fn(void);
+typedef void hash_init_fn(void *st /* slen bytes alloc'd by caller */);
 typedef void hash_update_fn(void *st, const void *buf, int32_t len);
-typedef void hash_final_fn(void *st, uint8_t *digest);
+typedef void hash_final_fn(void *st, uint8_t *digest /* hlen bytes */);
 struct hash_if {
-    int32_t len; /* Hash output length in bytes */
+    int32_t slen; /* State length in bytes */
+    int32_t hlen; /* Hash output length in bytes */
     hash_init_fn *init;
     hash_update_fn *update;
     hash_final_fn *final;
@@ -713,7 +729,7 @@ extern void log_from_fd(int fd, cstring_t prefix, struct log_if *log);
  * void COPY_OBJ(  OBJECT& dst, const OBJECT& src);
  * void COPY_ARRAY(OBJECT *dst, const OBJECT *src, INTEGER count);
  *   // Typesafe: we check that the type OBJECT is the same in both cases.
- *   // It is OK to use COPY_OBJ on an array object, provided it's
+ *   // It is OK to use COPY_OBJ on an array object, provided dst is
  *   // _actually_ the whole array object and not decayed into a
  *   // pointer (e.g. a formal parameter).
  */