password_hashing_scrypt.h

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#ifndef CPPSECURITY_PASSWORD_HASHING_SCRYPT_H
#define CPPSECURITY_PASSWORD_HASHING_SCRYPT_H
 
#include "password_hashing.h"
 
namespace CppSecurity {
 
 
class ScryptPasswordHashing : public PasswordHashing
{
public:
 
    ScryptPasswordHashing(size_t hash_length = 32, size_t salt_length = 32, uint64_t n = 512, uint32_t r = 8, uint32_t p = 1);
    ScryptPasswordHashing(const ScryptPasswordHashing&) = default;
    ScryptPasswordHashing(ScryptPasswordHashing&&) = default;
    ~ScryptPasswordHashing() = default;
 
    ScryptPasswordHashing& operator=(const ScryptPasswordHashing&) = default;
    ScryptPasswordHashing& operator=(ScryptPasswordHashing&&) = default;
 
    uint64_t n() const noexcept { return _n; }
    uint32_t r() const noexcept { return _r; }
    uint32_t p() const noexcept { return _p; }
 
    // Implementation of PasswordHashing
    const std::string& name() const override { return _name; }
    std::string GenerateHash(std::string_view password, std::string_view salt) const override;
    bool Validate(std::string_view password, std::string_view hash, std::string_view salt) const override;
 
private:
    static std::string _name;
    uint64_t _n;
    uint32_t _r;
    uint32_t _p;
};
 
} // namespace CppSecurity
 
#endif // CPPSECURITY_PASSWORD_HASHING_SCRYPT_H