rsa_verificator.h

// SPDX-FileCopyrightText: AC SOFTWARE SP. Z O.O.
// SPDX-License-Identifier: GPL-2.0-or-later
 
#ifndef SRC_SUPLA_RSA_VERIFICATOR_H_
#define SRC_SUPLA_RSA_VERIFICATOR_H_
 
#ifndef SUPLA_TEST
 
/*
 * Simple wrapper for mbedTLS RSA methods used to verify sha256 hash
 * against another hash signed with RSA private key.
 */
 
#define RSA_NUM_BYTES       512
#define RSA_PUBLIC_EXPONENT 65537
 
#include <stdint.h>
#include <supla/sha256.h>
 
namespace Supla {
 
class RsaVerificator {
 public:
  explicit RsaVerificator(const uint8_t *publicKeyBytes);
  ~RsaVerificator();
  bool verify(Supla::Sha256 *hash, const uint8_t *signatureBytes);
 
 protected:
  void *rsa_ctx;
  bool ready;
};
 
};  // namespace Supla
 
#endif  // SUPLA_TEST
#endif  // SRC_SUPLA_RSA_VERIFICATOR_H_