ec_key_data.h - mozsearch

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/*

* (C) 2024 Jack Lloyd

* Botan is released under the Simplified BSD License (see license.txt)

*/

#ifndef BOTAN_EC_KEY_DATA_H_

#define BOTAN_EC_KEY_DATA_H_

#include <botan/ec_apoint.h>

#include <botan/ec_group.h>

#include <botan/ec_scalar.h>

#include <botan/bigint.h>

#if defined(BOTAN_HAS_LEGACY_EC_POINT)

   #include <botan/ec_point.h>

#endif

namespace Botan {

class RandomNumberGenerator;

class EC_PublicKey_Data final {

   public:

      EC_PublicKey_Data(EC_Group group, EC_AffinePoint pt);

      EC_PublicKey_Data(const EC_Group& group, std::span<const uint8_t> bytes) :

            EC_PublicKey_Data(group, EC_AffinePoint(group, bytes)) {}

      const EC_Group& group() const { return m_group; }

      const EC_AffinePoint& public_key() const { return m_point; }

#if defined(BOTAN_HAS_LEGACY_EC_POINT)

      const EC_Point& legacy_point() const { return m_legacy_point; }

#endif

   private:

      EC_Group m_group;

      EC_AffinePoint m_point;

#if defined(BOTAN_HAS_LEGACY_EC_POINT)

      EC_Point m_legacy_point;

#endif

};

class EC_PrivateKey_Data final {

   public:

      EC_PrivateKey_Data(EC_Group group, EC_Scalar x);

      EC_PrivateKey_Data(const EC_Group& group, std::span<const uint8_t> bytes);

      std::shared_ptr<EC_PublicKey_Data> public_key(RandomNumberGenerator& rng, bool with_modular_inverse) const;

      std::shared_ptr<EC_PublicKey_Data> public_key(bool with_modular_inverse) const;

      void serialize_to(std::span<uint8_t> output) const;

      template <typename T>

      T serialize() const {

         T bytes(this->group().get_order_bytes());

         this->serialize_to(bytes);

         return bytes;

      const EC_Group& group() const { return m_group; }

      const EC_Scalar& private_key() const { return m_scalar; }

      const BigInt& legacy_bigint() const { return m_legacy_x; }

   private:

      EC_Group m_group;

      EC_Scalar m_scalar;

      BigInt m_legacy_x;

};

}  // namespace Botan

#endif