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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/nearby_sharing/certificates/common.h"
#include "base/containers/span.h"
#include "chrome/browser/nearby_sharing/certificates/constants.h"
#include "chrome/browser/nearby_sharing/certificates/nearby_share_decrypted_public_certificate.h"
#include "chrome/browser/nearby_sharing/certificates/nearby_share_private_certificate.h"
#include "chrome/browser/nearby_sharing/certificates/test_util.h"
#include "chromeos/ash/services/nearby/public/mojom/nearby_share_settings.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(NearbyShareCertificatesCommonTest, AuthenticationTokenHash) {
EXPECT_EQ(GetNearbyShareTestPayloadHashUsingSecretKey(),
ComputeAuthenticationTokenHash(GetNearbyShareTestPayloadToSign(),
GetNearbyShareTestSecretKey()));
}
TEST(NearbyShareCertificatesCommonTest, ValidityPeriod_PrivateCertificate) {
NearbySharePrivateCertificate cert = GetNearbyShareTestPrivateCertificate(
nearby_share::mojom::Visibility::kAllContacts);
const bool use_public_certificate_tolerance = false;
// Set time before validity period.
base::Time now = cert.not_before() - base::Milliseconds(1);
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_FALSE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time at inclusive lower bound of validity period.
now = cert.not_before();
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_TRUE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time in the middle of the validity period.
now = cert.not_before() + (cert.not_after() - cert.not_before()) / 2;
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_TRUE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time at non-inclusive upper bound of validity period.
now = cert.not_after();
EXPECT_TRUE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_FALSE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time after validity period.
now = cert.not_after() + base::Milliseconds(1);
EXPECT_TRUE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_FALSE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
}
TEST(NearbyShareCertificatesCommonTest, ValidityPeriod_PublicCertificate) {
NearbyShareDecryptedPublicCertificate cert =
*NearbyShareDecryptedPublicCertificate::DecryptPublicCertificate(
GetNearbyShareTestPublicCertificate(
nearby_share::mojom::Visibility::kAllContacts),
GetNearbyShareTestEncryptedMetadataKey());
const bool use_public_certificate_tolerance = true;
// Set time before validity period, outside of tolerance.
base::Time now = cert.not_before() -
kNearbySharePublicCertificateValidityBoundOffsetTolerance -
base::Milliseconds(1);
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_FALSE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time before validity period, at inclusive bound with tolerance.
now = cert.not_before() -
kNearbySharePublicCertificateValidityBoundOffsetTolerance;
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_TRUE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time before validity period, inside of tolerance.
now = cert.not_before() -
kNearbySharePublicCertificateValidityBoundOffsetTolerance / 2;
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_TRUE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time at inclusive lower bound of validity period.
now = cert.not_before();
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_TRUE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time in the middle of the validity period.
now = cert.not_before() + (cert.not_after() - cert.not_before()) / 2;
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_TRUE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time at upper bound of validity period.
now = cert.not_after();
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_TRUE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time after validity period, inside of tolerance.
now = cert.not_after() +
kNearbySharePublicCertificateValidityBoundOffsetTolerance / 2;
EXPECT_FALSE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_TRUE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time after validity period, at non-inclusive tolerance bound.
now = cert.not_after() +
kNearbySharePublicCertificateValidityBoundOffsetTolerance;
EXPECT_TRUE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_FALSE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
// Set time after validity period, outside of tolerance.
now = cert.not_after() +
kNearbySharePublicCertificateValidityBoundOffsetTolerance +
base::Milliseconds(1);
EXPECT_TRUE(IsNearbyShareCertificateExpired(
now, cert.not_after(), use_public_certificate_tolerance));
EXPECT_FALSE(IsNearbyShareCertificateWithinValidityPeriod(
now, cert.not_before(), cert.not_after(),
use_public_certificate_tolerance));
}
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