ssl - Html5 <keygen> tag importance -

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i getting started know html5 new elements.

i have doubts in <keygen> tag.

all can find understood, apart documents read, have following questions raise.

is important creating every new website?

where exact situation use <keygen>?

if not use this, issues can meet?

is there relation between keygen , ssl?

can me fix sir?

thanks in advance.


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