setup_salt(long salt)
{
	uint32		obit,
				saltbit;
	int			i;

	if (salt == old_salt)
		return;
	old_salt = salt;

	saltbits = 0L;
	saltbit = 1;
	obit = 0x800000;
	for (i = 0; i < 24; i++)
	{
		if (salt & saltbit)
			saltbits |= obit;
		saltbit <<= 1;
		obit >>= 1;
	}
}

This weakness pertains to the use of cryptographic functions that are weak, misconfigured, or outdated, which undermines the intended protection of encrypted data and communications.