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private-key cryptography
<cryptography> As opposed to public-key cryptography, a
cryptographic method in which the same key is used to encrypt
and decrypt the message. Private-key algorithms include the
obsolescent Data Encryption Standard (DES), triple-DES
(3DES), the Advanced Encryption Standard (AES), also known
as Rijndael, Blowfish, Twofish RC2, RC4, RC5 and RC6.
A problem with private-key cryptography is that the emitter
and the recipient of the message must agree secretly on a
common key beforehands; but how can they do so?
Public-key cryptography gives an answer to this problem.
(2003-04-12)
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Nearby terms:
Privacy Enhanced Mail « Private Automatic Branch eXchange « Private Branch Exchange « private-key cryptography » Private Manual Branch eXchange » privileged instruction » PRL
This article was derived from the Free Online Dictionary of Computers and is available under ther terms of the GNU Free Documentation License.
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