I googled differently, and found a post at onlinesportsbetter.blogspot.com that fixed my problem. The date was wrong in Windows, which prompted the error. All fixed now!
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I've been trying to log into Blogger/Blogspot/Google Analytics for about 24 hours, and am getting a security certificate error.

I can't seem to find any info on the forums about this - is anyone else having this problem?

TIA!

I found the problem - silly me! The date (unbeknownst to me) was wrong on my computer, for some reason the prompts the whole google family of products to give me a security certificate error .