947b950d95
(2) Remove "wrapping_iv" parameters from wv_cas_ecm (3) Internally derive "wrapping_iv"s and "key_id"s (4) Add an example binary for demo the usage of wv_cas_ecm ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=218209010
56 lines
2.1 KiB
C++
56 lines
2.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// Copyright 2018 Google LLC.
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//
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// This software is licensed under the terms defined in the Widevine Master
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// License Agreement. For a copy of this agreement, please contact
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// widevine-licensing@google.com.
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////////////////////////////////////////////////////////////////////////////////
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// Example of how to use the wv_cas_ecm library.
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#include <string>
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#include "gflags/gflags.h"
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#include "glog/logging.h"
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#include "absl/strings/escaping.h"
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#include "absl/strings/str_cat.h"
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#include "util/status.h"
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#include "media_cas_packager_sdk/public/wv_cas_ecm.h"
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const char kEvenKey[] = "even_content_key"; // 16 bytes
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const char kEvenContentIv8Bytes[] = "evencont"; // 8 bytes
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const char kOddKey[] = "odd_content_key."; // 16 bytes
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const char kOddContentIv8Bytes[] = "oddcont."; // 8 bytes
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const char kEntitlementKeyId[] = "ent_key_id......"; // 16 bytes
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const char kEntitlementKey[] = "entitlement_key................."; // 32 bytes
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int main(int argc, char **argv) {
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gflags::ParseCommandLineFlags(&argc, &argv, true);
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widevine::cas::WvCasEcm wv_cas_ecm;
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auto status = wv_cas_ecm.Initialize(/* content_iv_size= */ 16,
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/* key_rotation_enabled= */ true,
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/* crypto_mode= */ 1);
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if (!status.ok()) {
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LOG(FATAL) << "Failed to initialize WV CAS ECM, error: " << status;
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}
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std::string ecm;
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status = wv_cas_ecm.GenerateEcm(
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/* even_key= */ kEvenKey,
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/* even_content_iv= */
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absl::StrCat(kEvenContentIv8Bytes, kEvenContentIv8Bytes),
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/* odd_key= */ kOddKey,
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/* odd_content_iv= */
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absl::StrCat(kOddContentIv8Bytes, kOddContentIv8Bytes),
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/* entitlement_key_id= */ kEntitlementKeyId,
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/* entitlement_key= */ kEntitlementKey, &ecm);
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if (!status.ok()) {
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LOG(FATAL) << "Failed to generate WV CAS ECM, error: " << status;
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} else {
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LOG(INFO) << "Generated WV CAS ECM (in hex): "
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<< absl::BytesToHexString(ecm);
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}
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return 0;
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}
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