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Quiz 7 computer security

A visually captivating image of a digital lock with binary code in the background, symbolizing computer security and cryptography, along with icons representing various cryptographic algorithms.

Secure Your Knowledge: Computer Security Quiz

Test your knowledge of computer security with this engaging quiz designed to challenge your understanding of cryptographic algorithms, encryption methods, and digital signatures. Whether you're a student, professional, or simply a computer security enthusiast, this quiz will help you evaluate your skills!

10 multiple-choice questions
Instant feedback on your answers
Improve your understanding of computer security concepts

10 Questions2 MinutesCreated by EncryptingWolf524

Which cryptographic algorithm forms the basis of the El Gamal cryptosystem?

Diffie-Hellman

RSA

IDEA

3DES

If Richard wants to send an encrypted message to Sue using a public key cryptosystem, which key does he use to encrypt the message?

Sue's public key

Sue's private key

Richard's private key

Richard's public key

If a 2,048-bit plaintext message were encrypted with the El Gamal public key cryptosystem, how long would the resulting ciphertext message be?

8,192 bits

4,096 bits

2,048 bits

1,024 bits

Acme Widgets currently uses a 1,024-bit RSA encryption standard companywide. The company plans to convert from RSA to an elliptic curve cryptosystem. If it wants to maintain the same cryptographic strength, what ECC key length should it use?

512 bits

160 bits

1,024 bits

2,048 bits

John wants to produce a message digest of a 2,048-byte-message he plans to send to Mary. If he uses the SHA-1 hashing algorithm, what size will the message digest for this particular message be?

1,024 bits

160 bits

2,048 bits

512 bits

What encryption technique does WPA use to protect wireless communications?

DES

TKIP

AES

3DES

Richard wants to digitally sign a message he's sending to Sue so that Sue can be sure the message came from without modification while in transit. Which key should he use to encrypt the message digest?

Richard's public key

Sue's private key

Sue's public key

Richard's private key

Which International Telecommunications Union (ITU) standard governs the creation and endorsement of digital certificates for secure electronic communication?

X.500

X.905

X.509

X.900

What type of cryptographic attack rendered Double DES (2DES) no more effective than standard DES encryption?

Birthday attack

Man in the middle attack

Chosen ciphertext attack

Meet in the middle attack

What is the major disadvantage of using certificate revocation lists?

Record keeping

Vulnerability to brute-force attacks

Key-management

Latency

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