Free Preparation Discussions
MENU
Eccouncil 212-81 Exam - Topic 5 Question 55 Discussion
Topic #: 5
Which of the following statements is most true regarding binary operations and encryption?
They can form a part of viable encryption methods
for example - https://en.wikipedia.org/wiki/XOR_cipher
The XOR operator is extremely common as a component in more complex ciphers. By itself, using a constant repeating key, a simple XOR cipher can trivially be broken using frequency analysis. If the content of any message can be guessed or otherwise known then the key can be revealed. Its primary merit is that it is simple to implement, and that the XOR operation is computationally inexpensive. A simple repeating XOR (i.e. using the same key for xor operation on the whole data) cipher is therefore sometimes used for hiding information in cases where no particular security is required. The XOR cipher is often used in computer malware to make reverse engineering more difficult.
Chantell
2 months agoJoye
2 months agoTorie
3 months agoLuke
3 months agoJoanne
3 months agoMaybelle
3 months agoVirgilio
4 months agoReena
4 months agoIra
4 months agoAzalee
4 months agoMoon
4 months agoNichelle
5 months agoPrecious
5 months agoElfrieda
9 months agoJolanda
8 months agoJamal
8 months agoPaulene
9 months agoAnnmarie
9 months agoWai
8 months agoAdaline
8 months agoDorothy
8 months agoIrma
8 months agoQuentin
9 months agoJulian
9 months agoMilly
10 months agoGwenn
9 months agoParis
9 months agoIsadora
9 months agoJesusa
11 months agoRicki
11 months agoReuben
11 months ago