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Ensuring Internet Security through a Digital

Email forgery is a rampant case today. Changing the name of the sender or altering the message itself is very simple; it doesn’t take an expert and it doesn’t take an hour to forge an email. If you are one of the victims of email forgery, then you understand that this can cause a seriousĀ  problem. For example, anyone can use your name and email address and send a death threat to some important people. Or, someone can alter your message to your friends or to your boss. These instances prove that email forgery can wreck havoc to your personal and professional life.

What is a digital signature?

You’ll be amazed, however, to know that there is a way that could ensure protection for every email you send — the digital signature. A digital signature is in a way similar to the handwritten signature, both serve as a proof of the identity of the one who makes the signature. Sometimes, a digital signature is even more difficult to forge than the handwritten one. The digital signature guarantees that the email address that the sender used is not forged. Though the alteration of email cannot be prevented, the digital signature will give one a hint that the email have been opened and changed after it was sent.

Features of the digital signature

A digital signature is cryptographically based, so it is necessary that the the implementation of this is proper to make it effective. An email sent with a digital signature cannot be easily repudiated, meaning, the sender cannot deny that he sent the message. It also has a digital time stamp in which the time of the email transmission is recorded.

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