Chapter . Client Authentication and Public Key Encryption
<title>Why Should I Care About Encryption?</title>
Data that travels across unsecured networks is vulnerable to anyone who wants to read, alter, or forge information. Using easily obtained tools such as protocol analyzers, just about anybody can read packets and gain access to classified information. Hostile parties can tamper with packets, hinder delivery, or prevent network communications.
Encryption provides a means to scramble and protect information as it travels across an otherwise unsecured network. Different levels of encryption can keep anyone from deciphering the message or figuring out the message’s origin and destination.
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