Cryptography refers to the rendering of information into an unintelligible or secret format so that when it is transmitted over a public or insecure medium, it is unreadable to everyone except the sender and the intended receiver. Cryptography has a number of definitions, but the most common one defines cryptography as the science of secret writing. Cryptography has been in use for thousands of years. The earliest known use of cryptograph dates back 4,000 years ago to ancient Egypt, where it was originally used in the tombs of noblemen and kings probably as a way for the tomb Continue reading...