ITBP301_Chapter 04

Which of the following problems is directly addressed by public key cryptography?

• High computation time
• Key distribution
• Limited bandwidth
• Lack of data redundancy

What critical breakthrough did Diffie and Hellman contribute to cryptography in 1976?

• AES encryption
• Brute-force decryption technique
• The concept of public key cryptography
• RSA encryption

What does ECC stand for in public key cryptography?

• Enhanced Cryptography Code
• Extended Curve Cipher
• Encrypted Certificate Chain
• Elliptic Curve Cryptography

RSA encryption was developed at:

• Stanford University
• MIT
• NIST
• UC Berkeley

Why is factoring large prime numbers crucial to the security of RSA?

• It enables symmetric key generation
• It allows signature compression
• It would allow attackers to derive the private key
• It optimizes decryption speed

ElGamal encryption is closely related to which key exchange technique?

• RSA
• ECC
• Diffie-Hellman
• DES

One major advantage of ECC over RSA is:

• Equal security with smaller key sizes
• Larger key sizes
• Lower speed
• Simpler algorithms

ECC is increasingly adopted in cryptographic standards such as:

• SHA-2
• IEEE P1363
• DSS
• PKCS #1

Which of the following protocols is now considered insecure and deprecated?

• SSL
• TLS
• SSH
• IPsec

Which hybrid protocol uses both symmetric and asymmetric encryption for secure web communication?

• FTP
• HTTP
• TLS
• DNS