Asymmetric Cryptosystem Quiz! Trivia
.
- 1.In the RSA algorithm, we select 2 random large values ‘p’ and ‘q’. Which of the following is the property of ‘p’ and ‘q’?
- A.
P and q should be divisible by ะค(n)
- B.
P and q should be co-prime
- C.
P and q should be prime
- D.
P/q should give no remainder
- 2.Perform encryption on the following PT using RSA and find the CT. p = 3; q = 11, e=3; M = 5
- A.
28
- B.
26
- C.
18
- D.
12
- 3.For the Knapsack: {1 6 8 15 24}, find the plain text code if the ciphertext is 38.
- A.
10010
- B.
01101
- C.
01001
- D.
01110
- 4.Set {1, 2, 3, 9, 10, and 24} is superincreasing.
- A.
True
- B.
False
- 5.In Merkle-Hellman Cryptosystem, the hard knapsack becomes the private key and the easy knapsack becomes the public key.
- A.
True
- B.
False
- 6.Public key encryption/decryption is not preferred because:
- A.
It is slow
- B.
it is hardware/software intensive
- C.
It has a high computational load
- D.
all of the mentioned
- 7.Which of the following is not an element/field of the X.509 certificates?
- A.
Issuer Name
- B.
Serial Modifier
- C.
Issuer unique Identifier
- D.
Signature
- 8.It is desirable to revoke a certificate before it expires because:
- A.
the user is no longer certified by this CA
- B.
The CA’s certificate is assumed to be compromised
- C.
The user’s private key is assumed to be compromised
- D.
All of the mentioned
- 9.CRL stands for?
- A.
Cipher Reusable List
- B.
Certificate Revocation Language
- C.
Certificate Revocation List
- D.
Certificate Resolution Language
- 10.The _______of user should not appear on the digital certificate.
- A.
Public Key
- B.
Private Key
- C.
Organization name
- D.
Name
- 11.A Registration Authority ___________ issue digital certificate.
- A.
Can
- B.
May or may not
- C.
Has to always
- D.
Can never
- 12.We trust a digital certificate because it contains __________
- A.
Owner's public key
- B.
CA's public key
- C.
CA's signature
- D.
Owner's signature
- 13.While creating a digital envelope, we encrypt the ___________ with the ______________
- A.
Sender's private key, one time session key
- B.
Receiver's public key, one time session key
- C.
One time session key sender'spublic key
- D.
One time session key, receiver's public key
- 14.To verify digital signature, we need the ________
- A.
Sender's private key
- B.
Sender's public key
- C.
Receiver's public key
- D.
Receiver's private key
- 15.In Digital Signature, there is _____ relationship between signature and message.
- A.
Many to one
- B.
One to many
- C.
Many to many
- D.
One to one
Questions: 17 | Attempts: 8669 | Last updated: May 1, 2022
-
Sample QuestionAsymmetric key cryptography is used for all of the following except:
Questions: 30 | Attempts: 1790 | Last updated: Mar 22, 2022
-
Sample QuestionWhich of the following is not one of the three main categories of cryptography?
Questions: 6 | Attempts: 718 | Last updated: Mar 22, 2022
-
Sample QuestionJim and Joe work at Crypty Solutions Inc. They want to share messages in a secure way where it is immune to attacks. What do you think Jim and Joe should implement?
Back to top