WorksheetsYBAA
Total questions: 10
Worksheet time: 30mins
If Bob wants to send a secure message to Alice using an asymmetric cryptographic algorithm, which key does he use to encrypt the message
Bob’s private key
Alice’s public key
Bob’s public key
Alice’s private key
The opponent is most willing to recover
The Identity of the sender and/ or receiver
The ciphertext
The plaintext
The Encryption key
Cryptography systems can be divided into
All are correct
Block cipher and stream cipher
Symmetric and Asymmetric
Substitution and Transposition
Which of the following is a key management protocol used in IPsec VPNs
L2TP
PPTP
SSL
IKE
Which type of attack targets the implementation of a cryptographic algorithm rather than the algorithm itself
Brute force attack
.Side-channel attack
Birthday attack
Meet-in-the-Middle attack
Which of these is the strongest symmetric cryptographic algorithm
RC 1
Triple Data Encryption Standard
Data Encryption Standard
Advanced Encryption Standard
Which cryptographic algorithm is based on the discrete logarithm problem
AES
Diffie-Hellman
ElGamal
RSA
Which of the following is a security measure to protect against replay attacks
Public key
Initialization Vector (IV)
Nonce
Authentication Code (MAC)
In SHA-512, the message is divided into blocks of size ___ bits for the hash computation
1248
256
512
1024
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ضيدان
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