AESSecretKey.h

#ifndef TENDUKE_CRYPTO_AES_AESSECRETKEY_H
#define TENDUKE_CRYPTO_AES_AESSECRETKEY_H
 
#include "./AESGCMCipher.h"
#include "../SecretKey.h"
#include "../../../utl/DataSpan.h"
 
#include <cstdint>
#include <memory>
 
namespace tenduke { namespace crypto { namespace aes {
 
class AESSecretKey : public virtual SecretKey
{
public:
    explicit AESSecretKey(std::unique_ptr<::tenduke::utl::DataSpan> key)
    : data(std::move(key))
    {
    }
 
    // The key is not copyable
    AESSecretKey(const AESSecretKey&) = delete;
    AESSecretKey& operator=(const AESSecretKey&) = delete;
 
    // The key is movable
    AESSecretKey(AESSecretKey&& other) noexcept = default;
    AESSecretKey& operator=(AESSecretKey&& other) noexcept = default;

    virtual std::unique_ptr<::tenduke::crypto::aes::AESGCMCipher> gcmCipher() const = 0;
 
    virtual uint32_t numBits() const
    {
        return size() * 8;
    }
 
    const unsigned char * raw() const override
    {
        return data->data();
    }
 
    size_t size() const override
    {
        return data->size_bytes();
    }
 
private:
    std::unique_ptr<::tenduke::utl::DataSpan> data;
};
 
}}}
 
#endif //TENDUKE_CRYPTO_AES_AESSECRETKEY_H