Chapter 3 _part 2 or Quiz Flashcards
if a key is 43 bits long, how much longer will it take to crack it by brute force if it is extended to 50 bits?
128 times as long
3DES characteristics?
very slow, strong enough for corporations and expensive in processing resources.
_____ is the security guarantee that people who intercept messages can not read them
confidentiality
what is transmitted across a network?
the ciphertext
describe RC4
extremely fast
what is the effective key length for 3DES
112 bits
the 56-bit key size is sufficient for most _______ applications
consumer
someone who breaks encryption is called?
cryptanalyst
____ is the use of mathematical operations to protect messages traveling between parties or stored on a computer
cryptography
nearly all encryption for confidentiality uses ___ encryption ciphers
symmetric key
what describes RC4?
RC4 can use a broad range of key lengths
what is a key length offered by AES?
192 bits
A ____ is a random string of 40-4,000 bits used to encrypt messages
key
a DES key is ______ bits long
56
A ______ is a mathematical process used in encryption and decryption
cipher
