Internet 2

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potentially prying eyes. Moreover, there is no one to verify the validity of the credit card. To ensure that the person using the card is actually the card holder. The buyer might have exceeded the limit or can be using a stolen card. Likewise, the buyer has no assurance that the vendor on the other end is who he/she claim to be. Richard E. Smith in Internet cryptography says that data travels from one computer to another leaving the safety of its protected surroundings.
Once the data is out of the sender's hand it can fall into the hands of people with bad intention. they could modify the data for their amusement or for their own benefit. To protect the data moving across the network, encryption has been introduced. The crypto device has several essential elements that determine how it works.
First the crypto algorithm, which specifies the mathematical transformation that is performed on data to encrypt or decrypt. the crypto algorithm is a procedure that takes the plain text data ...

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