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Digital signature is quite a common term these days. In fact, with the advent of information technology, the importance of digital signature has been increasing remarkably. A digital signature is required to authenticate an electronic document, just like a handwritten signature is required to authenticate a printed or hand written document. In any document, that has legal importance, a signature is an essential part of it. As more and more documents are now used, or transferred digitally, the importance of digital signature is obvious. A digital signature actually offers more security than any kinds of handwritten signatures.

The USA is called the land of opportunity. Over the centuries, the country has allured thousands of academicians and professionals in different fields to work in this country. At the same time, every year millions of students from different parts of the world, especially from Asia, South America, and Africa, migrate to the USA in quest of higher studies, and better research opportunities. The country is the establishment of some of the world-famous colleges and universities, studying there is a lifelong dream of millions of students. Over the last few years, significant changes in the “types” of students migrating in this country have been taking place.