pyq/2013/gs3/16
What is a digital signature? What does its authentication mean? Give various salient built-in features of a digital signature. How does the 3D printing technology work? List out the advantages and disadvantages of the technology.
What is a digital signature? What does its authentication mean? Give various salient built-in features of a digital signature. How does the 3D printing technology work? List out the advantages and disadvantages of the technology.