--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/test/dsa_test.c	Tue Jun 15 14:07:21 2004 +0000
@@ -0,0 +1,51 @@
+#include "test.h"
+
+int dsa_test(void)
+{
+   unsigned char msg[16], out[1024], out2[1024];
+   unsigned long x, y;
+   int err, stat1, stat2;
+   dsa_key key, key2;
+
+   /* make a random key */
+   DO(dsa_make_key(&test_yarrow, find_prng("yarrow"), 20, 128, &key));
+
+   /* verify it */
+   DO(dsa_verify_key(&key, &stat1));
+   if (stat1 == 0) { printf("dsa_verify_key "); return 1; }
+
+   /* sign the message */
+   x = sizeof(out);
+   DO(dsa_sign_hash(msg, sizeof(msg), out, &x, &test_yarrow, find_prng("yarrow"), &key));
+
+   /* verify it once */
+   DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key));
+
+   /* Modify and verify again */
+   msg[0] ^= 1;
+   DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat2, &key));
+   msg[0] ^= 1;
+   if (!(stat1 == 1 && stat2 == 0)) { printf("dsa_verify %d %d", stat1, stat2); return 1; }
+
+   /* test exporting it */
+   x = sizeof(out2);
+   DO(dsa_export(out2, &x, PK_PRIVATE, &key));
+   DO(dsa_import(out2, x, &key2));
+
+   /* verify a signature with it */
+   DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2));
+   if (stat1 == 0) { printf("dsa_verify (import private) %d ", stat1); return 1; }
+   dsa_free(&key2);
+
+   /* export as public now */
+   x = sizeof(out2);
+   DO(dsa_export(out2, &x, PK_PUBLIC, &key));
+   DO(dsa_import(out2, x, &key2));
+   /* verify a signature with it */
+   DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2));
+   if (stat1 == 0) { printf("dsa_verify (import public) %d ", stat1); return 1; }
+   dsa_free(&key2);
+   dsa_free(&key);
+
+   return 0;
+}