VirgilKDF.h

#ifndef VIRGIL_CRYPTO_KDF_H
#define VIRGIL_CRYPTO_KDF_H

#include <string>
#include <memory>

#include <virgil/crypto/VirgilByteArray.h>
#include <virgil/crypto/foundation/asn1/VirgilAsn1Compatible.h>

namespace virgil { namespace crypto { namespace foundation {

class VirgilKDF : public asn1::VirgilAsn1Compatible {
public:
    enum class Algorithm {
        KDF1, 
        KDF2  
    };

    VirgilKDF();

    explicit VirgilKDF(VirgilKDF::Algorithm alg);

    explicit VirgilKDF(const std::string& name);

    explicit VirgilKDF(const char* name);


    std::string name() const;


    virgil::crypto::VirgilByteArray derive(const virgil::crypto::VirgilByteArray& in, size_t outSize);

    size_t asn1Write(asn1::VirgilAsn1Writer& asn1Writer, size_t childWrittenBytes = 0) const override;

    void asn1Read(asn1::VirgilAsn1Reader& asn1Reader) override;
public:
    VirgilKDF(VirgilKDF&& rhs) noexcept;

    VirgilKDF& operator=(VirgilKDF&& rhs) noexcept;

    virtual ~VirgilKDF() noexcept;

private:
    void checkState() const;

private:
    class Impl;

    std::unique_ptr<Impl> impl_;
};

}}}

namespace std {
string to_string(virgil::crypto::foundation::VirgilKDF::Algorithm alg);
}

#endif /* VIRGIL_CRYPTO_KDF_H */