Cyber Security

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

• email

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