Update to support OEMCrypto v16 with ODK

common/dual_certificate_client_cert.h

@@ -0,0 +1,57 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright 2020 Google LLC.
+//
+// This software is licensed under the terms defined in the Widevine Master
+// License Agreement. For a copy of this agreement, please contact
+// widevine-licensing@google.com.
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef COMMON_DUAL_CERTIFICATE_CLIENT_CERT_H_
+#define COMMON_DUAL_CERTIFICATE_CLIENT_CERT_H_
+
+#include "common/certificate_client_cert.h"
+
+namespace widevine {
+
+class DualCertificateClientCert : public ClientCert {
+ public:
+  DualCertificateClientCert() = default;
+  ~DualCertificateClientCert() override = default;
+  DualCertificateClientCert(const DualCertificateClientCert&) = delete;
+  DualCertificateClientCert& operator=(const DualCertificateClientCert&) =
+      delete;
+
+  Status Initialize(const DrmRootCertificate* root_certificate,
+                    const std::string& serialized_signing_certificate,
+                    const std::string& serialized_encryption_certificate);
+  Status VerifySignature(const std::string& message,
+                         HashAlgorithm hash_algorithm,
+                         const std::string& signature,
+                         ProtocolVersion protocol_version) const override;
+  void GenerateSigningKey(const std::string& message,
+                          ProtocolVersion protocol_version) override;
+
+  const std::string& encrypted_key() const override;
+  const std::string& key() const override;
+  SignedMessage::SessionKeyType key_type() const override;
+  bool using_dual_certificate() const override { return true; }
+  const std::string& serial_number() const override;
+  const std::string& service_id() const override;
+  const std::string& signing_key() const override;
+  const std::string& signer_serial_number() const override;
+  uint32_t signer_creation_time_seconds() const override;
+  bool signed_by_provisioner() const override;
+  uint32_t system_id() const override;
+  widevine::ClientIdentification::TokenType type() const override {
+    return ClientIdentification::DRM_DEVICE_CERTIFICATE;
+  }
+  const std::string& encrypted_unique_id() const override;
+  const std::string& unique_id_hash() const override;
+
+ private:
+  CertificateClientCert signing_certificate_;
+  CertificateClientCert encryption_certificate_;
+};
+
+}  // namespace widevine
+#endif  // COMMON_DUAL_CERTIFICATE_CLIENT_CERT_H_