Cybersecurity 8

A virtual private network is a way to use the Internet to create a connection between a remote user and a central location.

True

IPsec can only encrypt the packet data but not the header information.

False

L2TP uses IPsec for its encryption.

True

Kerberos is an authentication protocol that uses a ticket granting system that sends an encrypted ticket to the user’s machine.

True

A digital signature is used to guarantee who sent a message. This is referred to as non-repudiation.

True

Public key encryption is fast becoming the most widely used type of encryption because there are no issues to deal with concerning distribution of keys.

True

PGP involves only private key encryption.

False

The most widely used symmetric key algorithm is Advanced Encryption Standard.

True

Cipher text is encrypted text.

True

Binary numbers are made up of 0s and 1s.

True

______________ is the process to scramble a message or other information so that it cannot be easily read.

Encryption

__________ is the art to write in or decipher secret code.

Cryptography

Which of these is NOT one of the two basic types of cryptography?

Forward

With asymmetric cryptography a different ______ is used to encrypt the message and to decrypt the message.

Key

Using the __________ cipher you choose some number by which to shift each letter of a text.

Caesar

Using the _________ cipher you select multiple numbers by which to shift letters.

Multi-alphabet substitution

Which of the following is an operation used on binary numbers not found in normal math?

AND

A(n) ________ refers to the bits that are combined with the plain text to encrypt it.

key

________ refers to unencrypted text.

plain text

__________refers to encrypted text.

cipher text

A(n) ___________is a set of steps for doing something.

Algorithm

Which of these is NOT a type of symmetric algorithm?

Transcription

_________ is a block cipher that uses a variable-length key ranging from 32 to 448 bits.

Blowfish

With ______________ encryption, one key is used to encrypt a message, and another is used to decrypt the message.

Public key

Windows stores passwords using a method called _________

Hashing