crypto_provider.hpp

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#ifndef IROHA_URSA_CRYPTOPROVIDER_HPP
#define IROHA_URSA_CRYPTOPROVIDER_HPP

#if !defined(USE_LIBURSA)
#error USE_LIBURSA must be defined
#endif

#include "cryptography/keypair.hpp"
#include "cryptography/private_key.hpp"
#include "cryptography/seed.hpp"
#include "interfaces/common_objects/byte_range.hpp"

namespace shared_model {
  namespace crypto {
    class CryptoProviderEd25519Ursa {
     public:
      static std::string sign(const Blob &blob, const Keypair &keypair);

      static bool verify(shared_model::interface::types::ByteRange signed_data,
                         shared_model::interface::types::ByteRange source,
                         shared_model::interface::types::ByteRange public_key);

      static Keypair generateKeypair();

      static Keypair generateKeypair(const Seed &seed);

      static Keypair generateKeypair(const PrivateKey &key);

      // Ursa provides functions for retrieving key lengths, but we use
      // hardcoded values
      static constexpr size_t kHashLength = 256 / 8;
      static constexpr size_t kPublicKeyLength = 256 / 8;
      static constexpr size_t kPrivateKeyLength = 512 / 8;
      static constexpr size_t kSignatureLength = 512 / 8;
    };
  }  // namespace crypto
}  // namespace shared_model

#endif  // IROHA_URSA_CRYPTOPROVIDER_HPP