Quote from: bob123 on April 23, 2018, 06:42:32 AM

SPKAC stands for Signed Public Key and Challenge.

Quote

It is a format for sending a Certification Signing Request ... It is created using the little documented HTML keygen element[2] inside a number of Netscape compatible browsers.

- Wikipedia

Where did you read it in the context with crypto (cryptocurrency? or cryptography?) ?
I am not aware of any blockchain project somehow utilizing SPKAC.
This is something completely different (if you are comparing it with signature algorithms, etc.. in crypto(currencies)).

I am trying to follow below link so i can able to implement crypto using node js then i saw SPKAC there i am confused about the SPKAC so i tried to figure out here "what SPKAC exactly".
https://nodejs.org/api/crypto.html