Cryptography
The process of securing private information that is passed through public
networks by mathematically scrambling (encrypting) it in a way
that makes it unreadable to anyone except the person or persons holding the
mathematical "key" that can unscramble (decrypt) it. The two most
common types of cryptography are "same-key" and
"public-key."
In same-key cryptography, a message is encrypted and decrypted using the same
key, which is passed along from one party to another in a separate transmission.
A more secure method is public-key cryptography which uses a pair of different
keys
(one public, one private) that have a particular relationship to one another,
such that any message encrypted with one key can only be decrypted with
the other key and viceversa.
See Encryption
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