php - How can I test a browser to see if it supports 128-bit encryption? -


I have been given the task of searching for a piece of the old code. I agree to test whether the browser supports 128-bit encryption or not. Here's the old code: (I deliberately divided the link into 4 lines)


? Good = .. / docs / html / good.html and & nsbad = .. / docs / html / upgrade anonly = html & amp; Ie2 = .. / docs / html / upgradeIEonly.html

Have you seen this code before?
How can I duplicate this functionality inside a php page?

Explanation
The old webmaster found a link for verisign that was checking the browser after Verisign stopped the support of this link Have given. Personally, I think we should tell our customers to click inside the browser and view the cipher power support> about it . If it is not less than 128, then we simply tell them to upgrade the browser.

All modern browsers support 128-bit encryption outside the box. Do you need to support older browsers than IE 5.5?

You can either check the browser's user-agent string and make assumptions, or you have 128 bit SSL certificates and if they continue it. OK, they support it should do.


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