Ch 3

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

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

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

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

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

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

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

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

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.)

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

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.

Asymmetric cryptographic algorithms are also known as private key cryptography.

Wireless data networks are particularly susceptible to known ciphertext attacks.

Obfuscation is making something well known or clear.

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

One of the first popular symmetric cryptography algorithms was RSA.

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.