Security - Chapter 3

Encryption is the practice of transforming information so that it is secure and cannot be accessed by unauthorized parties.

Ciphertext is the scrambled and unreadable output of encryption.

The XOR cipher is based on the binary operation eXclusive OR that compares two bits.

In information technology, non-repudiation is the process of proving that a user performed an action

Obfuscation is making something well known or clear.

One of the first popular symmetric cryptography algorithms was RSA.

Asymmetric cryptographic algorithms are also known as private key cryptography.

Wireless data networks are particularly susceptible to known ciphertext attacks.

A collision attack is an attempt to find two input strings of a hash function that produce the same hash result.

GNU Privacy Guard a proprietary software that runs on different operating systems

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

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

In which type of encryption is the same key used to encrypt and decrypt data?

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

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

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

Which standard was approved by NIST in late 2000 as a replacement for DES?

What type of cryptography uses two keys instead of just one, generating both a private and a public key?

Which of the following is not one of the functions of a digital signature?

Which of the following asymmetric cryptography algorithms is most commonly used?

What cryptographic method, first proposed in the mid-1980s, makes use of sloping curves instead of large prime numbers?

What widely used commercial asymmetric cryptography software can be used for encrypting files and email messages?

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

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

In cryptography, which of the five basic protections ensures that the information is correct and no unauthorized person or malicious software has altered that data?

What type of cryptographic algorithm creates a unique digital fingerprint of a set of data?

Which hash algorithm's primary design feature is two different and independent parallel chains of computation, the results of which are then combined at the end of the process?

What type of cipher takes one character and replaces it with one character, working one character at a time?

What term describes data actions being performed by endpoint devices, such as printing a report from a desktop computer?

What type of message authentication code uses hashing to authenticate the sender by using both a hash function and a secret cryptographic key?

What alternative term can be used to describe asymmetric cryptographic algorithms?

Which of the following are considered to be common asymmetric cryptographic algorithms? (Choose all that apply.)

What is the U.S. federal government standard for digital signatures?

If Bob receives an encrypted reply message from Alice, whose private key is used to decrypt the received message?

When Bob needs to send Alice a message with a digital signature, whose private key is used to encrypt the hash?

Which key exchange requires Alice and Bob to each agree upon a large prime number and related integer?

Which of the following is a public key system that generates random public keys that are different for each session?

What term best describes when cryptography is applied to entire disks instead of individual files or groups of files?

Which of the following is more secure than software encryption?

What technology uses a chip on the motherboard of the computer to provide cryptographic services?