ec-uecc.hpp

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#ifndef ESP8266NDN_PORT_EC_UECC_HPP
#define ESP8266NDN_PORT_EC_UECC_HPP
 
#include "choose.h"
 
#ifdef ESP8266NDN_PORT_EC_UECC
 
#include "../vendor/uECC.h"
#include <sys/types.h>
#include <type_traits>
 
namespace esp8266ndn {
namespace ndnph_port_uecc {
 
class Ec {
public:
  struct Curve {
    using PvtLen = std::integral_constant<size_t, uECC_BYTES>;
    using PubLen = std::integral_constant<size_t, 1 + uECC_BYTES * 2>;
    using MaxSigLen = std::integral_constant<size_t, 9 + uECC_BYTES * 2>;
  };
 
  class PrivateKey {
  public:
    bool import(const uint8_t key[Curve::PubLen::value]);
 
    ssize_t sign(const uint8_t digest[uECC_BYTES], uint8_t sig[Curve::MaxSigLen::value]) const;
 
  private:
    uint8_t m_key[uECC_BYTES];
  };
 
  class PublicKey {
  public:
    bool import(const uint8_t[Curve::PubLen::value]);
 
    bool verify(const uint8_t digest[uECC_BYTES], const uint8_t* sig, size_t sigLen) const;
 
  private:
    uint8_t m_key[2 * uECC_BYTES];
  };
 
  static bool generateKey(uint8_t pvt[Curve::PvtLen::value], uint8_t pub[Curve::PubLen::value]);
};
 
} // namespace ndnph_port_uecc
} // namespace esp8266ndn
 
namespace ndnph {
namespace port {
using Ec = esp8266ndn::ndnph_port_uecc::Ec;
} // namespace port
} // namespace ndnph
 
#endif // ESP8266NDN_PORT_EC_UECC
#endif // ESP8266NDN_PORT_EC_UECC_HPP