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-rw-r--r--test/unit/nts_ntp_auth.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/test/unit/nts_ntp_auth.c b/test/unit/nts_ntp_auth.c
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+/*
+ **********************************************************************
+ * Copyright (C) Miroslav Lichvar 2020
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ **********************************************************************
+ */
+
+#include <config.h>
+#include "test.h"
+
+#ifdef FEAT_NTS
+
+#include <nts_ntp_auth.c>
+
+#include "ntp_ext.h"
+#include "siv.h"
+
+void
+test_unit(void)
+{
+ unsigned char key[SIV_MAX_KEY_LENGTH], nonce[256], plaintext[256], plaintext2[256];
+ NTP_PacketInfo info;
+ NTP_Packet packet;
+ SIV_Instance siv;
+ int i, j, r, packet_length, nonce_length, key_length;
+ int plaintext_length, plaintext2_length, min_ef_length;
+
+ siv = SIV_CreateInstance(AEAD_AES_SIV_CMAC_256);
+ TEST_CHECK(siv);
+
+ for (i = 0; i < 10000; i++) {
+ key_length = SIV_GetKeyLength(AEAD_AES_SIV_CMAC_256);
+ for (j = 0; j < key_length; j++)
+ key[j] = random() % 256;
+ TEST_CHECK(SIV_SetKey(siv, key, key_length));
+
+ nonce_length = random() % sizeof (nonce) + 1;
+ for (j = 0; j < nonce_length; j++)
+ nonce[j] = random() % 256;
+
+ plaintext_length = random() % (sizeof (plaintext) + 1);
+ for (j = 0; j < plaintext_length; j++)
+ plaintext[j] = random() % 256;
+
+ packet_length = NTP_HEADER_LENGTH + random() % 100 * 4;
+ min_ef_length = random() % (sizeof (packet) - packet_length);
+
+ memset(&packet, 0, sizeof (packet));
+ packet.lvm = NTP_LVM(0, 4, 0);
+ memset(&info, 0, sizeof (info));
+ info.version = 4;
+ info.length = packet_length;
+
+ DEBUG_LOG("packet_length=%d nonce_length=%d plaintext_length=%d min_ef_length=%d",
+ packet_length, nonce_length, plaintext_length, min_ef_length);
+
+ r = NNA_GenerateAuthEF(&packet, &info, siv, nonce, nonce_length, plaintext,
+ -1, 0);
+ TEST_CHECK(!r);
+ r = NNA_GenerateAuthEF(&packet, &info, siv, nonce, 0, plaintext,
+ plaintext_length, 0);
+ TEST_CHECK(!r);
+ r = NNA_GenerateAuthEF(&packet, &info, siv, nonce, nonce_length, plaintext,
+ plaintext_length, sizeof (packet) - info.length + 1);
+ TEST_CHECK(!r);
+
+ r = NNA_GenerateAuthEF(&packet, &info, siv, nonce, nonce_length, plaintext,
+ plaintext_length, min_ef_length);
+ TEST_CHECK(r);
+ TEST_CHECK(info.length - packet_length >= min_ef_length);
+
+ r = NNA_DecryptAuthEF(&packet, &info, siv, packet_length, plaintext2,
+ -1, &plaintext2_length);
+ TEST_CHECK(!r);
+
+ r = NNA_DecryptAuthEF(&packet, &info, siv, packet_length, plaintext2,
+ sizeof (plaintext2), &plaintext2_length);
+ TEST_CHECK(r);
+ TEST_CHECK(plaintext_length == plaintext2_length);
+ TEST_CHECK(memcmp(plaintext, plaintext2, plaintext_length) == 0);
+
+ j = random() % (packet_length + plaintext_length +
+ nonce_length + SIV_GetTagLength(siv) + 8) / 4 * 4;
+ ((unsigned char *)&packet)[j]++;
+ r = NNA_DecryptAuthEF(&packet, &info, siv, packet_length, plaintext2,
+ sizeof (plaintext2), &plaintext2_length);
+ TEST_CHECK(!r);
+ ((unsigned char *)&packet)[j]--;
+ }
+
+ SIV_DestroyInstance(siv);
+}
+#else
+void
+test_unit(void)
+{
+ TEST_REQUIRE(0);
+}
+#endif