CIA Triad/Authentication
What does CIA stand for?
confidentiality, integrity, and availability
The process of taking plaintext and turning it into incomprehensible text is called ______________
encryption
What does cd stand for?
change directory
16
Convert 1100 to decimal
12
Encryption helps with this part of CIA Triad (primarily)
confidentiality
This ciphertext, htij, has been encrypted using a caesar cipher with a key of 5. What is the plaintext?
code
If I want to find a listing of all of the files (including hidden files), what command would I use?
ls -a
What are the characters used in hex?
0-9, A-F
Convert 11111111 to decimal
255
Hashes help with this part of the CIA Triad (primarily)
integrity
Encrypt this plaintext word march using the Atbash cipher.
nzixs
If I want to go back to the home directory, what command would I use? There are two options.
cd or cd~
What is the decimal value of A from ASCII?
65
What is the maximum decimal value that can be represented by 9 bits?
511
Using a fingerprint for authentication is an example of something you ___________
are
What type of encryption uses a public and private key?
asymmetric
If I want to read a file and print the contents of the file to the screen, what command would I use (similar to less...but doesn't open a text editor)?
cat
Convert 11110100 to hex
#F4
What is 16 in binary (write as a byte)?
00010000
Using an ID for authentication is an example of something you ___________
have
A hash is a one-way algorithm that encodes passwords/files, etc to ensure they are not altered. A rainbow table can help attackers figure out the passwords. What is the random text called that can be added to the password to help protect against rainbow tables?
salt
If I want to search for the word "password" in the file file.txt, what command would I use? Write out the whole thing.
grep password file.txt
Convert #D8 to binary (byte)
11011000
What is 100 in binary? (write as a byte)
01100100