WorksheetsCyber Security
Total questions: 23
Worksheet time: 20mins
1. In an asymmetric -key cipher, the sender uses the …………….key
Private
Public
none of the above
In an asymmetric -key cipher, the receiver uses the …………….key
Private
Public
none of the above
1. One commonly used public-key cryptography method is the …………………….algorithm
(a)
In public key cryptosystem which is kept as public?
Encryption keys
Decryption keys
Encryption and Decryption keys
None of the above
A cryptographic hash function has variable output length.
True
False
........................... is a famous technological medium for the spread of malware,facing problems of spam, & phishing attacks.
Cloud
Website
Pen drive
In RSA, Ф(n) = in terms of p and q
(p)/(q)
(p)(q)
(p-1)(q-1)
(p+1)(q+1)
Application of Diffie Hellman Algorithm
Secure Shell (SSH)
Transport Layer Security (TLS)
Public Key Infrastructure (PKI)
All the given options
Key Management process involves
key generation,
Storage
key generation only
Both Key generation and storage
Public announcement is an (a) public key distribution
Publicly available directory contains (a) entries
public key certificate binds
public key and identifier of the key owner
identifier of the key owner and sign of the trusted third party
public key and identifier of the key owner and signature
none
(a) overlaid on an existing KDC scheme
(a) used to identify transaction uniquely
Message authentication is a mechanism or service used to verify (a)
When a hash function is used to provide message authentication, the hash function value is often referred to as a ………………..
(a)
In Message Encryption , (a) serves as its authenticator
In hash function, (a) serves as its authenticator
Authentication Requirements
Disclosure
Content Modification
Masquerade
All of the given options
(a) Insertion of messages into the network from a fraudulent source.
(a) Discovery of the pattern of traffic between parties.
(a) denotes timing modifications
Authentication technique involves the use of a secret key to generate a small fixed-size block of data, known as a
(a)
