Copyright 2002 by
Prentice Hall, Inc.
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2.Public key encryption: A third party issues
two keys for a person and then manages
the keys.
1.Private key: is meant to be kept secret and is used by the person to send and receive encrypted messages.
2.Public key: it is made public and can be used by anyone to send an encrypted message to the person with the private key, or to read messages from that person.
Security in the Internet Age: Countermeasures