# HG changeset patch
# User Matt Johnston <matt@ucc.asn.au>
# Date 1497960445 -28800
# Node ID 2d937dc448511d38c4e1e00d3d485f1a90236bc6
# Parent  9236e7120c3e702441f205e7d9834ee51000e01f
verify debug printing

diff -r 9236e7120c3e -r 2d937dc44851 dss.c
--- a/dss.c	Fri Jun 16 22:35:32 2017 +0800
+++ b/dss.c	Tue Jun 20 20:07:25 2017 +0800
@@ -174,6 +174,13 @@
 		goto out;
 	}
 
+#if DEBUG_DSS_VERIFY
+	printmpint("dss verify p", key->p);
+	printmpint("dss verify q", key->q);
+	printmpint("dss verify g", key->g);
+	printmpint("dss verify x", key->x);
+#endif
+
 	/* hash the data */
 	sha1_init(&hs);
 	sha1_process(&hs, data_buf->data, data_buf->len);
@@ -183,6 +190,9 @@
 	/* w = (s')-1 mod q */
 	/* let val1 = s' */
 	bytes_to_mp(&val1, (const unsigned char*) &string[SHA1_HASH_SIZE], SHA1_HASH_SIZE);
+#if DEBUG_DSS_VERIFY
+	printmpint("dss verify s'", &val1);
+#endif
 
 	if (mp_cmp(&val1, key->q) != MP_LT) {
 		TRACE(("verify failed, s' >= q"))
@@ -200,6 +210,9 @@
 	/* u1 = ((SHA(M')w) mod q */
 	/* let val1 = SHA(M') = msghash */
 	bytes_to_mp(&val1, msghash, SHA1_HASH_SIZE);
+#if DEBUG_DSS_VERIFY
+	printmpint("dss verify r'", &val1);
+#endif
 
 	/* let val3 = u1 = ((SHA(M')w) mod q */
 	if (mp_mulmod(&val1, &val2, key->q, &val3) != MP_OKAY) {