Exam 21: Cryptography and Security

____________________ is a technique to detect changes to information rather than encrypt and decrypt information.

____ ciphers encrypt any number of bits

A(n) ____________________ is a special word, phrase, or binary number that is used during encryption or decryption to manipulate the data.

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

The ____ determines the level of data protection provided by the encryption technique.

Discuss the encryption strength of symmetric and asymmetric encryption.

A(n) ____________________ cipher is an algorithm that encrypts or decrypts blocks of data, such as 64-bit or 128-bit chunks of information at a time.

Symmetric encryption is generally thought to be more secure than asymmetric encryption.

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

The ____________________ of the WAV file determines how much data can be hidden inside it.

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

How is data hidden inside a WAV?

Hashed data can be unhashed and turned back into their original form.

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

Describe symmetric encryption.

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

The hash value is called a ____.

Describe asymmetric encryption.

Asymmetric encryption algorithms use ____________________ keys to perform the encryption and decryption.