-typedef string_t dh_makepublic_fn(void *st, uint8_t *secret,
- int32_t secretlen);
-
-/* Fills buffer (up to buflen) with shared secret. The rempublic string
- * comes from the remote site, and may not be acceptable, though it has been
- * checked for memory-safety. The secretlen and buflen are the secret_len
- * and shared_len reported by the closure, respectively. Return false on
- * faliure (e.g., if the publiclen is unacceptable).
+typedef int32_t dh_makepublic_fn(void *st, void *public, int32_t publiclen,
+ uint8_t *secret, int32_t secretlen);
+
+/* Fills buffer (up to buflen) with shared secret. The publiclen comes from
+ * the remote site, and may not be acceptable, though it has been checked for
+ * memory-safety. The secretlen and buflen are the secret_len and shared_len
+ * reported by the closure, respectively. Return false on faliure (e.g., if
+ * the publiclen is unacceptable).