It is unlikely that someone like that in his personal letters drop curious computer scientists. Fortunately, they can be easy to "cheat", a pre-encrypted mail and notify your destination a secret key to deciphering it.
Recently, the confidentiality of correspondence is becoming a hot topic, so Microsoft and Netscape have built into their latest browsers and e-mail systems, coders. In order to make it work, you must obtain a digital ID.
Numeric identification allows you to sign your messages so that recipients can verify their authenticity, that is, that is the name of the sender you. In addition, the use of digital certificates allows you to send encrypted messages. Like a passport or driving license digital ID allows you to quickly identify you.
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