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Merge "Start rental clock when nonce-free offline license loaded" into rvc-d1-dev am: d24b3d4bd2 am: 84c1ff91ae am: e8cf28340a am: 37afd55f2e

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Original change: https://googleplex-android-review.googlesource.com/c/platform/vendor/widevine/+/12184965

Change-Id: I72f403d3d9b63b271226ae42716068b3e807d815
This commit is contained in:
TreeHugger Robot
2020-07-21 11:15:30 +00:00
committed by Automerger Merge Worker
parent bdcfbc503e 37afd55f2e
commit a3508ba654
1 changed files with 9 additions and 0 deletions
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9
libwvdrmengine/cdm/core/src/cdm_session.cpp
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@@ -286,6 +286,15 @@ CdmResponseType CdmSession::RestoreOfflineSession(const CdmKeySetId& key_set_id,
key_response_, &provider_session_token) ||
usage_table_header_ == nullptr) {
provider_session_token.clear();
// TODO(b/161023174): remove this code in v17.
std::string fake_message("empty message");
std::string core_message;
std::string license_request_signature;
// Sign a fake message so that OEMCrypto will start the rental clock. The
// signature and generated core message are ignored.
CdmResponseType status = crypto_session_->PrepareAndSignLicenseRequest(
fake_message, &core_message, &license_request_signature);
if (status != NO_ERROR) return status;
} else if (!VerifyOfflineUsageEntry()) {
LOGE("License usage entry is invalid, cannot restore");
return LICENSE_USAGE_ENTRY_MISSING;