security chapter 5 – Flashcards

The SHA-1 hashing algorithm creates a digest that is how many bits in length?

The NTRUEncrypt cryptographic algorithm makes use of which of the following cryptographic techniques?

Which of the following is not one of the functions of a digital signature? 1. Verification of the sender 2. Prevention of the sender from disowning the message 3.Prove the integrity of the message 4.Protect the public key

After the DES cipher was broken and no longer considered secure, what encryption algorithm was made as its successor?

Cryptography that attempts to use the microscopic behaviors of objects to develop and share keys while also detecting eavesdropping is known as what type of cryptography?

What type of cryptographic algorithm is considered to be a one-way algorithm, in that its contents can't be used to reveal the original set of data?

On what principle did Julius Caesar's cyptographic messages function?

The asymmetric cryptography algorithm most commonly used is:

What is the block cipher algorithm that operates on 64-bit blocks and can have a key length from 32 to 448 bits known as?

A key that is generated by a symmetric cryptographic algorithm is said to be a:

The simplest type of stream cipher, one in which one letter or character is exchanged for another, is known as what?

Self-encrypting HDD is commonly found in copiers and multi function printers as well as point-of-sale systems used in government, financial, and medical environments.

Data that is in an unencrypted form is referred to as which of the following?

What is the name of the open source asymmetric cryptography system that runs on Windows, UNIX, and Linux systems, and is compatible with PGP?

A hash algorithm is designed to create a hash that represents the contents of a set of data that can later be decrypted.

What is the name of the cryptographic hash function that has international recognition and has been adopted by standards organizations such as the ISO, that creates a digest of 512 bits and will not be subject to patents?

Steganography hides the existence of data within images by dividing and hiding portions of a file within the image.

Select below the hashing algorithm that takes plaintext of any length and generates a digest 128 bits in length:

Which type of cryptographic algorithm takes an input string of any length, and returns a string of any requested variable length?

If using the MD5 hashing algorithm, what is the length to which each message is padded?

A symmetric cipher that was approved by the NIST in late 2000 as a replacement for DES

An algorithm that uses elliptic curves instead of prime numbers to compute keys

An asymmetric encryption key that does not have to be protected..

A symmetric block cipher that uses a 56-bit key and encrypts data in 64-bit blocks

A temporary key that is used only once before it is discarded..

An asymmetric encryption key that does have to be protected.

A cipher that manipulates an entire block of plaintext at one time..

A key exchange that requires all parties to agree upon a large prime number and related integer so that the same key can be separately created..

An algorithm that takes one character and replaces it with one character.

Data that has been encrypted.