// Store sessionkey
    m_account->SetSessionKey(m_sessionkey.AsByteArray());

    // Hash the session key so that the logon DB can know
    int HASH_CONSTANT = 0x7A0Bh;

    const char* temp = m_sessionkey.AsHexStr();
    SHA1_CONTEXT sha_context;
    SHA1_Init(&sha_context);
    SHA1_Update(&sha_context, temp, 40);
    SHA1_Update(&sha_context, &HASH_CONSTANT, 2);
    char keyhash[24];
    SHA1_Final(keyhash, &sha_context);

    // Let the DB know
    sLogonSQL->Execute("UPDATE `account_messages` SET `hash` = '%s' WHERE `account` = '%s';", m_sessionkey.AsDecStr(), m_account->UsernamePtr);

    // let the client know
    sha.Initialize();
    sha.UpdateBigNumbers(&A, &M, &m_sessionkey, 0);
    sha.Finalize();

    SendProofError(0, sha.GetDigest());
    LOG_DEBUG("[AuthLogonProof] Authentication Success.");