Dictionary of Information Security

encryption. Asymmetric algorithms require more

computation than equivalently strong symmetric

ones.Thus, asymmetric encryption is not normally

used for data confidentiality except in distributing

symmetric keys in applications where the key data is

usually short compared to the data it protects.

Probably the most widely known example of a

hybrid system is PGP.

Hybris most specialists would probably define Hybris as a

worm rather than a virus, since it sends copies of itself

as email attachments. Hybris will generally come in

a message with a coy indication that the attachment

is pornography.The attachment is often named with

a .SCR extension.The extension is traditionally

used to indicate screen savers, but the file format is

the same as any normal executable ...