Module 2 Unit 1 Part Iii

Front 1

Which encryption algorithms can be used to encrypt and decrypt data?

Back 1

RC5

Front 2

Secret Key encryption is also known as:

Back 2

Symmetrical

Front 3

Which of the following encryption algorithms relies on the inability to factor large prime numbers?

Back 3

RSA

Front 4

Which of the following allows an attacker to manipulate files by using the least significant bit(s) to secretly embed data?

Back 4

Steganography

Front 5

Each user has a pair of cryptographic keys---a public key and a private key. The main difference between a public key and a private key is that:

Back 5

The private key is only used by the client and kept secret while the public key is available to all.

Front 6

Which of the following is a well-studied block cipher based on DES and the LEAST secure algorithm?

Back 6

LANMAN

Front 7

Which of the following would allow for secure key exchange over an unsecured network without a pre-shared key?

Back 7

MD5

Front 8

Which key is generally applied FIRST to a message digest to provide non-repudiation by use of asymmetric cryptography?

Back 8

Private Key of the sender

Front 9

Hashing is the transformation of a string of characters into a usually shorter fixed-length value or key that represents the original string. Hashing is used to index and retrieve items in a database. Which description is correct when a hashing algorithm generates the same hash for two different messages?

Back 9

A collision occurred

Front 10

If a large key size is used, which of the following encryption algorithm is fast and hard to break?

Back 10

Symmetric

Front 11

In order to encrypt credit card data, which will be the most secure algorithm with the least CPU utilization?

Back 11

AES

Front 12

Which of the following refers to the ability to be reasonably certain that data is not disclosed to unintended persons?

Back 12

Confidentiality

Front 13

If properly used, the perfect encryption scheme that is considered to be unbreakable is:

Back 13

One time pad

Front 14

Which statement correctly describes the difference between a secure cipher and a secure hash?

Back 14

A cipher can be reversed, a hash cannot.

Front 15

In an unsecured network, which of the following allows for secure key exchange without a pre-shared key?

Back 15

DH-ECC

Front 16

Which of the following increases the collision resistance of a hash?

Back 16

Salt

Front 17

How many keys are utilized with asymmetric cryptography?

Back 17

Two

Front 18

Which of the following describes a type of algorithm that cannot be reversed in order to decode the data?

Back 18

One way funtion

Front 19

In an unsecured network, which of the following allows for secure key exchange without a pre-shared key?

Back 19

DH-ECC

Front 20

Which of the following is a form of security through obscurity that allows an attacker to manipulate files using the least significant bit(s) to secretly embed data?

Back 20

steganography