44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// Copyright 2017 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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//
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// Description:
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// Helper methods for verifying VMP (Verified Media Pipeline) data.
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#include "common/verified_media_pipeline.h"
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#include "common/vmp_checker.h"
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namespace widevine {
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Status VerifyVmpData(const std::string& vmp_data,
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PlatformVerificationStatus* platform_verification_status) {
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*platform_verification_status = PLATFORM_UNVERIFIED;
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VmpChecker::Result vmp_result;
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Status status = VmpChecker::Instance()->VerifyVmpData(vmp_data, &vmp_result);
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if (status.ok()) {
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switch (vmp_result) {
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case VmpChecker::kUnverified:
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*platform_verification_status = PLATFORM_UNVERIFIED;
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break;
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case VmpChecker::kVerified:
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*platform_verification_status = PLATFORM_SOFTWARE_VERIFIED;
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break;
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case VmpChecker::kSecureStorageVerified:
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*platform_verification_status =
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PLATFORM_SECURE_STORAGE_SOFTWARE_VERIFIED;
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break;
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case VmpChecker::kTampered:
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*platform_verification_status = PLATFORM_TAMPERED;
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break;
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}
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} else {
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*platform_verification_status = PLATFORM_TAMPERED;
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}
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return status;
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}
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} // namespace widevine
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