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Unit test for loading nonce-free offline license

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Merge from Widevine repo of http://go/wvgerrit/100964

The previous nonce-free test used the same session to generate the
request as to load the license. However, it is a realistic use case to
have a new session used for loading the license.

The use case relates to a pre-loaded, shared license.

Test: Ran unit tests on taimen and on v16 ref implementation
Bug: 156853321
Change-Id: Ibc07744a16edcd3952d88d73660a75d0c3e8eeb8
This commit is contained in:
Fred Gylys-Colwell
2020-05-30 20:49:01 -07:00
parent 42eb79a3ff
commit a615671f48
3 changed files with 11 additions and 5 deletions
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6
libwvdrmengine/oemcrypto/test/oec_session_util.cpp
View File

@@ -635,7 +635,7 @@ OEMCryptoResult LicenseRoundTrip::LoadResponse(Session* session) {
// Note: we verify content licenses here. For entitlement license, we verify
// the key control blocks after loading entitled content keys.
if (license_type_ == OEMCrypto_ContentLicense) VerifyTestKeys();
if (license_type_ == OEMCrypto_ContentLicense) VerifyTestKeys(session);
}
return result;
}
@@ -649,12 +649,12 @@ OEMCryptoResult LicenseRoundTrip::ReloadResponse(Session* session) {
// with the truth key control block. Failures in this function probably
// indicate the OEMCrypto_LoadLicense/LoadKeys did not correctly process the key
// control block.
void LicenseRoundTrip::VerifyTestKeys() {
void LicenseRoundTrip::VerifyTestKeys(Session* session) {
for (unsigned int i = 0; i < num_keys_; i++) {
KeyControlBlock block;
size_t size = sizeof(block);
OEMCryptoResult sts = OEMCrypto_QueryKeyControl(
session_->session_id(), response_data_.keys[i].key_id,
session->session_id(), response_data_.keys[i].key_id,
response_data_.keys[i].key_id_length,
reinterpret_cast<uint8_t*>(&block), &size);
if (sts != OEMCrypto_ERROR_NOT_IMPLEMENTED) {

2
libwvdrmengine/oemcrypto/test/oec_session_util.h
View File

@@ -298,7 +298,7 @@ class LicenseRoundTrip
// Reload an offline license into a different session. This derives new mac
// keys and then calls LoadResponse.
OEMCryptoResult ReloadResponse(Session* session);
void VerifyTestKeys();
void VerifyTestKeys(Session* session);
// Set the default key control block for all keys. This is used in
// CreateDefaultResponse. The key control block determines the restrictions
// that OEMCrypto should place on a key's use. For example, it specifies the

8
libwvdrmengine/oemcrypto/test/oemcrypto_test.cpp
View File

@@ -854,7 +854,13 @@ TEST_P(OEMCryptoLicenseTest, LoadKeyWithNoRequest) {
license_messages_.core_request().api_minor_version = ODK_MINOR_VERSION;
ASSERT_NO_FATAL_FAILURE(license_messages_.CreateDefaultResponse());
ASSERT_NO_FATAL_FAILURE(license_messages_.EncryptAndSignResponse());
ASSERT_EQ(OEMCrypto_SUCCESS, license_messages_.LoadResponse());
// Load license in a different session, which did not create the request.
Session session2;
ASSERT_NO_FATAL_FAILURE(session2.open());
ASSERT_NO_FATAL_FAILURE(InstallTestRSAKey(&session2));
ASSERT_NO_FATAL_FAILURE(session2.GenerateDerivedKeysFromSessionKey());
ASSERT_EQ(OEMCrypto_SUCCESS, license_messages_.LoadResponse(&session2));
}
// Verify that a license may be loaded with a nonce.