fb96918196
------------- Allow the usage of different entitlement keys to wrap even vs. odd key. ------------- (1) Change parameter type from 'string' to 'const char* const' to handle possible '\x00' (Nul char) byte in the input. (2) Check size of generated ECM string, return error if the size is not as expected. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=220172089
58 lines
2.2 KiB
C++
58 lines
2.2 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 <iostream>
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#include <string>
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#include "media_cas_packager_sdk/public/wv_cas_ecm.h"
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#include "media_cas_packager_sdk/public/wv_cas_types.h"
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const char kCsaEvenKey[] = "even_key"; // 8 bytes
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const char kEvenContentIv8Bytes[] = "even_iv."; // 8 bytes
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const char kEvenEntitlementKeyId[] = "fake_key_id1...."; // 16 bytes
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const char kEvenEntitlementKey[] =
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"fakefakefakefakefakefakefake1..."; // 32 bytes
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const char kCsaOddKey[] = "odd_key."; // 8 bytes
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const char kOddContentIv8Bytes[] = "odd_iv.."; // 8 bytes
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const char kOddEntitlementKeyId[] = "fake_key_id2...."; // 16 bytes
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const char kOddEntitlementKey[] =
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"fakefakefakefakefakefakefake2..."; // 32 bytes
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int main(int argc, char **argv) {
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widevine::cas::WvCasEcm wv_cas_ecm;
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widevine::cas::WvCasStatus status = wv_cas_ecm.Initialize(
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/* content_iv_size= */ 8, /* key_rotation_enabled= */ true,
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widevine::cas::CryptoMode::kDvbCsa2);
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if (status != widevine::cas::OK) {
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std::cerr << "Failed to initialize WV CAS ECM, error: "
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<< widevine::cas::GetWvCasStatusMessage(status)
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<< std::endl;
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}
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std::string ecm;
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status = wv_cas_ecm.GenerateEcm(
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kCsaEvenKey, kEvenContentIv8Bytes, kEvenEntitlementKeyId,
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kEvenEntitlementKey, kCsaOddKey, kOddContentIv8Bytes,
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kOddEntitlementKeyId, kOddEntitlementKey, &ecm);
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if (status != widevine::cas::OK) {
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std::cerr << "Failed to generate WV CAS ECM, error: "
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<< widevine::cas::GetWvCasStatusMessage(status)
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<< std::endl;
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} else {
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std::cout << "ECM size: " << ecm.size() << std::endl;
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std::cout << "ECM bytes: ";
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for (size_t i = 0; i < ecm.size(); i++) {
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printf("'\\x%02x', ", static_cast<uint16_t>(ecm.at(i)));
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}
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std::cout << std::endl;
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}
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return 0;
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}
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