Gresshma reply to Sabin Pandey answer
Hey Sabin Pandey,
You did a great job of participating in this week’s discussion on digital signature approaches. I agree with you that, SA-PSS includes an additional layer from the RSS that is a resulting product from padding,hashing, and salting. The other layer is an advantage to a new commercial product in that it tends to provide extra security to the product (Donaldson et al.,2016). However, I think DSA, as a digital signature, adds merit to the new commercial product by its faster processing of the key, thus improves the security of the product.
References
Donaldson, R. J., Collins, R. J., Kleczkowska, K., Amiri, R., Wallden, P., Dunjko, V., … & Buller, G. S. (2016). Experimental demonstration of kilometer-range quantum digital signatures. Physical Review A, 93(1), 012329.