sr25519_provider_impl.hpp

Go to the documentation of this file.

#ifndef KAGOME_CORE_CRYPTO_SR25519_SR25519_PROVIDER_IMPL_HPP
#define KAGOME_CORE_CRYPTO_SR25519_SR25519_PROVIDER_IMPL_HPP

#include "crypto/random_generator.hpp"
#include "crypto/sr25519_provider.hpp"

namespace libp2p::crypto::random {
  class CSPRNG;
}

namespace kagome::crypto {

  class Sr25519ProviderImpl : public Sr25519Provider {
    using CSPRNG = libp2p::crypto::random::CSPRNG;

   public:
    explicit Sr25519ProviderImpl(std::shared_ptr<CSPRNG> generator);

    ~Sr25519ProviderImpl() override = default;

    Sr25519KeypairAndSeed generateKeypair() const override;

    Sr25519Keypair generateKeypair(const Sr25519Seed &seed) const override;

    outcome::result<Sr25519Signature> sign(
        const Sr25519Keypair &keypair,
        gsl::span<const uint8_t> message) const override;

    outcome::result<bool> verify_deprecated(
        const Sr25519Signature &signature,
        gsl::span<const uint8_t> message,
        const Sr25519PublicKey &public_key) const override;

    outcome::result<bool> verify(
        const Sr25519Signature &signature,
        gsl::span<const uint8_t> message,
        const Sr25519PublicKey &public_key) const override;

   private:
    std::shared_ptr<CSPRNG> generator_;
  };

}  // namespace kagome::crypto

#endif  // KAGOME_CORE_CRYPTO_SR25519_SR25519_PROVIDER_IMPL_HPP