usernameHash.hpp

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//

#ifndef _USERNAME_HASH_HPP_INCLUDED
#define _USERNAME_HASH_HPP_INCLUDED

#include <string>
#include <system/randomGenerator.hpp>
#include "crypto/HMAC.h"

namespace _Wolframe {
namespace AAAA {

static const size_t USERNAME_HASH_SIZE = HMAC_SHA256_HASH_SIZE;
static const size_t USERNAME_HASH_SALT_SIZE = 128 / 8;

class UsernameHash
{
public:
        UsernameHash( const crypto::RandomGenerator& rndGen, const std::string& username );
        UsernameHash( const unsigned char *slt, std::size_t sltSize,
                      const std::string& username );
        UsernameHash( const std::string& hashString );

        ~UsernameHash();

        unsigned char* salt()                           { return m_salt; }
        std::size_t saltSize() const                    { return m_saltSize; }
        unsigned char* hash()                           { return m_hash; }
        std::size_t hashSize() const                    { return sizeof( m_hash ); }

        std::string toString() const;

        std::string toBCD() const;

        bool operator == ( const UsernameHash& rhs );
        bool operator != ( const UsernameHash& rhs )    { return !( *this == rhs ); }

        bool operator == ( const std::string& rhs )     { return *this == UsernameHash( rhs ); }
        bool operator != ( const std::string& rhs )     { return !( *this == rhs ); }

private:
        std::size_t     m_saltSize;
        unsigned char   m_salt[ USERNAME_HASH_SALT_SIZE ];
        unsigned char   m_hash[ USERNAME_HASH_SIZE ];
};

}} // namespace _Wolframe::AAAA

#endif  // _USERNAME_HASH_HPP_INCLUDED