X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/0f00dc4c8eb47e67bc0f148c2dd109f73a451e0a..a02a22d4b55d233ada2e030a44065f464b79f137:/pub/dsa.h

diff --git a/pub/dsa.h b/pub/dsa.h
index 3b93d933..97046fde 100644
--- a/pub/dsa.h
+++ b/pub/dsa.h
@@ -190,6 +190,24 @@ extern int dsa_checkparam(keycheck */*kc*/, const dsa_param */*dp*/,
 
 extern mp *dsa_h2n(mp */*d*/, mp */*r*/, const void */*h*/, size_t /*hsz*/);
 
+/* --- @dsa_nonce@ --- *
+ *
+ * Arguments:	@mp *d@ = destination integer
+ *		@mp *q@ = order of the DSA group
+ *		@mp *x@ = secret key
+ *		@const octet *m@ = message hash
+ *		@const gchash *h@ = hash class
+ *		@grand *r@ = random bit source, or null
+ *
+ * Returns:	A nonce.
+ *
+ * Use:		Generates a nonce for use in DSA (or another Fiat--Shamir
+ *		signature scheme).
+ */
+
+extern mp *dsa_nonce(mp */*d*/, mp */*q*/, mp */*x*/, const octet */*m*/,
+		     const gchash */*ch*/, grand */*r*/);
+
 /* --- @dsa_mksig@ --- *
  *
  * Arguments:	@const dsa_param *dp@ = pointer to DSA parameters