What is meant by the term cipher when used in cryptography?

Security

Quiz
•
Susilawati Rahim
•
Computers
•
1st - 3rd Grade
•
3 plays
•
Medium
Student preview

10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
an encryption or decryption algorithm
an encrypted message
a type of session key
a digital signature
text following an encryption algorithm
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
When carrying out asymmetric encryption, which of the following users would keep the
private key?
the sender
the receiver
both sender and receiver
all recipients of the message
none of the above
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
In cryptography, which of the following is the term used to describe the message before it
is encrypted?
simpletext
plaintext
notext
ciphertext
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following is the biggest disadvantage of using symmetric encryption?
it is very complex and time consuming
it is rarely used any more
the value of the key reads the same in both directions
it only works on computers with older operating systems
there is a security problem when transmitting the secret key
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Which of the following is the correct name for a form of encryption in which both the
sender and the recipient use the same key to encrypt/decrypt?
symmetric key encryption
asymmetric key encryption
public key encryption
same key encryption
block cipher encryption
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Which of the following is involved in temporary key generation?
session keys
private key and certificate
public key and certificate
master keys
public keys
7.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Which of the following is a correct statement about PKIs?
they use private and public keys but not digital certificates
they use digital signatures and public keys
they are a combination of digital certificates, public key cryptography and CAs
they use asymmetric keys, hashing algorithms and certificate authorities
they are a combination of digests, hashing algorithms and asymmetric cryptographic
algorithms
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