////////////////////////////////////////////////////////////////////////////////
// Copyright 2019 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.
////////////////////////////////////////////////////////////////////////////////
//
// Description:
//   Declaration for abstract EC key generation class.

#ifndef COMMON_EC_KEY_SOURCE_H_
#define COMMON_EC_KEY_SOURCE_H_

#include <string>

#include "common/ec_key.h"

namespace widevine {

class ECKeySource {
 public:
  ECKeySource() = default;
  virtual ~ECKeySource() = default;

  // Get an EC key pair given a specific curve defined by EllipticCurve.
  // Parameter |curve| is a standard curve which defines the parameters of the
  // key generation.
  // Parameter |private_key| is the serialized EC private key.
  // Parameter |public_key| is the serialized EC public key.
  // Caller retains ownership of all pointers and they cannot be nullptr.
  // Returns true if successful, false otherwise.
  virtual bool GetECKey(ECPrivateKey::EllipticCurve curve,
                        std::string* private_key, std::string* public_key) = 0;

 private:
  ECKeySource(const ECKeySource&) = delete;
  ECKeySource& operator=(const ECKeySource&) = delete;
};

}  // namespace widevine

#endif  // COMMON_EC_KEY_SOURCE_H_