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Internet authentication using certificates

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richard09
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PostPosted: Fri May 13, 2005 12:25 pm    Post subject: Internet authentication using certificates Reply with quote

Hi guys

I have been doing some surfing using anonymous public proxies. When I went to look at a secure site (using my ISP direct connection to the net which I have used to access the secure site before) firefox (v1.0.4) popped up with a security warning along the lines of 'certificate domain changed someone may be attempting to eavesdrop on your connection'.

Is this because I changed my settings to use the proxie and subsequently changed back to a direct connection? (before accessing the secure site?)

Should I be concerned change my passwords and not use a public proxie again? I could'nt really find anything on the net saying that using an open proxie is any kind of security risk.

thanks
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monkranter
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PostPosted: Fri May 13, 2005 9:00 pm    Post subject: Reply with quote

This alert could mean couple of things.


1. It could be that the site you were visiting didn't match the site listed in its certificate. In other words, the certificate might have been issued to home.mysecuresite.com, but they were using it for away.mysecuresite.com. You should check the certificate issued to the site and make sure it is valid.

2. Your browser doesn't trust the Certificate Authority that issued the certificate. Most sites get their certificates from trusted CAs such as Verisign, that have a solid reputation because they followed all the channels to become a trusted signing authority. It could be that this particular site used a young company for their CA or created it in-house. Again, you should check the certificate's validity.

In either case, you issue is more with the site and not proxy related.
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