CryptoBackend.h

#ifndef SSP21_SODIUM_CRYPTOBACKEND_H
#define SSP21_SODIUM_CRYPTOBACKEND_H

#include "ssp21/crypto/ICryptoBackend.h"

namespace ssp21
{
        namespace sodium
        {

                /**
                * Crypto backend for libsodium
                */
                class CryptoBackend : public ICryptoBackend
                {

                public:

                        static bool initialize();

                        virtual void zero_memory(const wseq32_t& data) override;

                        virtual void gen_random(const wseq32_t& dest) override;

                        virtual bool secure_equals(const seq32_t& lhs, const seq32_t& rhs) override;

                        virtual void hash_sha256(
                                const std::initializer_list<seq32_t>& data,
                                SecureBuffer& output
                        ) override;

                        virtual void hmac_sha256(
                                const seq32_t& key,
                                const std::initializer_list<seq32_t>& data,
                                SecureBuffer& output
                        ) override;

                        virtual void gen_keypair_x25519(KeyPair& pair) override;

                        virtual void dh_x25519(
                                const PrivateKey& priv_key,
                                const seq32_t& pub_key,
                                DHOutput& output,
                                std::error_code& ec
                        ) override;

                        virtual void hkdf_sha256(
                                const seq32_t& salt,
                                const std::initializer_list<seq32_t>& input_key_material,
                                SymmetricKey& key1,
                                SymmetricKey& key2
                        ) override;

                        virtual void gen_keypair_ed25519(KeyPair& pair) override;

                        virtual void sign_ed25519(const seq32_t& input, const seq32_t& private_key, DSAOutput& output, std::error_code& ec) override;

                        virtual bool verify_ed25519(const seq32_t& message, const seq32_t& signature, const seq32_t& public_key)  override;

                };

        }
}

#endif