From 63fb3948c54f885c2a3b8989556b93621190f601 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Wed, 9 Oct 2002 23:16:10 +0200
Subject: [PATCH] * testsuite/testutils.c (test_dsa_key): New function to
sanity check a dsa keypair.
Rev: src/nettle/testsuite/testutils.c:1.16
Rev: src/nettle/testsuite/testutils.h:1.14
---
testsuite/testutils.c | 28 ++++++++++++++++++++++++++++
testsuite/testutils.h | 4 ++++
2 files changed, 32 insertions(+)
diff --git a/testsuite/testutils.c b/testsuite/testutils.c
index 87cec2ff..9cb06989 100644
--- a/testsuite/testutils.c
+++ b/testsuite/testutils.c
@@ -507,5 +507,33 @@ test_dsa(const struct dsa_public_key *pub,
dsa_signature_clear(&signature);
}
+void
+test_dsa_key(struct dsa_public_key *pub,
+ struct dsa_private_key *key)
+{
+ mpz_t t;
+
+ mpz_init(t);
+
+ ASSERT(mpz_sizeinbase(pub->q, 2) == 160);
+ ASSERT(mpz_sizeinbase(pub->p, 2) >= DSA_MINIMUM_BITS);
+
+ ASSERT(mpz_probab_prime_p(pub->p, 10));
+
+ ASSERT(mpz_probab_prime_p(pub->q, 10));
+
+ mpz_fdiv_r(t, pub->p, pub->q);
+
+ ASSERT(0 == mpz_cmp_ui(t, 1));
+
+ ASSERT(mpz_cmp_ui(pub->g, 1) > 0);
+
+ mpz_powm(t, pub->g, pub->q, pub->p);
+ ASSERT(0 == mpz_cmp_ui(t, 1));
+
+ mpz_powm(t, pub->g, key->x, pub->p);
+ ASSERT(0 == mpz_cmp(t, pub->y));
+};
+
#endif /* WITH_PUBLIC_KEY */
diff --git a/testsuite/testutils.h b/testsuite/testutils.h
index 8defa091..64d22eeb 100644
--- a/testsuite/testutils.h
+++ b/testsuite/testutils.h
@@ -91,6 +91,10 @@ void
test_dsa(const struct dsa_public_key *pub,
const struct dsa_private_key *key);
+void
+test_dsa_key(struct dsa_public_key *pub,
+ struct dsa_private_key *key);
+
#endif /* WITH_PUBLIC_KEY */
#define H2(d, s) decode_hex((d), (s))
--
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