Exam 21: Cryptography and Security

A ____ is visible or invisible information added to an image,video,or audio that identifies the copyright owner of the media.

Describe asymmetric encryption.

____ ciphers encrypt any number of bits

In ____ encryption,the single key must be shared between the individuals wishing to protect their data.

In ____ encryption,the private key is kept private,in the hands of a single individual.

Keeping secrets has become a major force in networking and communication.

The hash value is called a ____.

What is a frequency analysis?

In the ____ cipher technique,the letters of the alphabet are shifted one or more positions to obtain the encryption alphabet.

Match each item with a statement below. -A single key is used to encrypt and decrypt the data