00:01
Here's a solution for 974.
00:02
It says vulnerability of relying party websites.
00:05
So when you sign on to your facebook account, you are granted access to more than 1 million relying party websites.
00:11
The single sign -on scheme is enabled by whatever it is web source.
00:18
So although the protocol claims to be secure, there is anecdotal evidence of critical vulnerabilities that allow an attacker to gain unauthorized access to the user's profile and allow the attacker to impersonate the victim.
00:29
So computer systems, you know, yada, yada, yada.
00:32
So of the 40 server flow studies, sites studied, 20 were found to be vulnerable to impersonation attacks, and of the 54 client flow sites examined, 41 were found to be vulnerable.
00:43
So do these results indicate a client flow website is more likely to be vulnerable than a, than a, it shouldn't say client flow, a server flow.
00:55
So p1 minus p2 would be less than zero in this case.
00:59
All right.
00:59
So let's go ahead and we're supposed to conduct this at the alpha equals 0 .01.
01:03
So alpha equals 0 .01.
01:05
All right.
01:05
So i'm going to do the p value test.
01:07
So we're going to do a two prop z test...