PGP - Pretty Good Privacy
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Owned by Network Associates; developed by Phil Zimmermann in 1991)
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World-Wide deployment
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provides encryption and digital signature for e-mail and files
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asymmetric encryption: RSA, Diffie Hellman
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symmetric encryption: CAST, IDEA, Triple DES
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PGP is a hybrid cryptographic system which combines the best features of symmetric and asymmetric encryption
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widely available: http://www.pgp.com; http://www.pgpi.com
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Windows: version 6.0.2; Unix : version 5.x.I
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