File content as of revision 3:f818ea5172ed:

/*******************************************************************************
* Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
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* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
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* OTHER DEALINGS IN THE SOFTWARE.
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* Products, Inc. Branding Policy.
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*******************************************************************************/

#ifndef MaximInterface_Ecc256
#define MaximInterface_Ecc256

#include <stdint.h>
#include "array.hpp"
#include "Export.h"
#include "ManId.hpp"
#include "RomId.hpp"

namespace MaximInterface {
namespace Ecc256 {

typedef array<uint_least8_t, 32> Scalar;
struct Point {
  /// Total size of all elements in bytes.
  static const size_t size = 2 * Scalar::csize;
  
  Scalar x;
  Scalar y;
};

typedef Scalar PrivateKey;
typedef Point PublicKey;
struct KeyPair {
  /// Total size of all elements in bytes.
  static const size_t size = PrivateKey::csize + PublicKey::size;
  
  PrivateKey privateKey;
  PublicKey publicKey;
};

struct Signature {
  /// Total size of all elements in bytes.
  static const size_t size = 2 * Scalar::csize;
  
  Scalar r;
  Scalar s;
};

/// Data used to create a device key certificate for ECC-256 authenticators.
typedef array<uint_least8_t, 2 * Scalar::csize + RomId::csize + ManId::csize>
    CertificateData;

/// Formats data for creating a device key certificate from the public key,
/// ROM ID, and MAN ID.
MaximInterface_EXPORT CertificateData createCertificateData(
    const PublicKey & publicKey, const RomId & romId, const ManId & manId);

} // namespace Ecc256
} // namespace MaximInterface

#endif