IE 128 encryption

I have tried to download the 128 cypher strength for IE with no avail. I have downloaded IE 6, and downloaded all the updates from MS web page, it still shows 0 bits. I uninstalled IE 6, re-installed IE 5.5 (which supposedly has the 128 encryption) still showing 0 bits. I downloaded all the updates for that version, still nothing. Is there another way to get the 128 cypher strength encription? Please somebody help? Thanks