Question: Two people want to use a symmetric key to encrypt data. The person who created the key needs to transfer it to the other person, ensuring no one else can decrypt the key. Which key should the person who created the symmetric key use?
Answer Choices:
Recipient’s private key
Recipient’s public key
Sender’s public key
Sender’s private key
Answer: Recipient’s public key
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Question: Which assurance does using public-key cryptography for digital signatures provide?
Answer Choices:
Privacy protection
Mutual authentication
Integrity
Confidentiality
Answer: Integrity
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Question: What makes RC4 cipher unique compared to RC5 and RC6?
Answer Choices:
Block
Stream
Symmetric
Asymmetric
Answer: Stream
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Question: What do RC4 and AES have in common?
Answer Choices:
Both use stream encryption
Both use block encryption
Both use asymmetric encryption
Both use symmetric encryption
Answer: Both use symmetric encryption Question
Question: Which symmetric encryption technique uses a 112-bit key size and a 64-bit block size?
Answer Choices:
IDEA
DES
3DES
AES
Answer: 3DES
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Question: Which wireless cellular security standard uses either A5/1 or A5/2 stream ciphers for encrypted communications?
Answer Choices:
WPA
GSM
VPN
WEP
Answer: GSM
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Question: How does FREAK crack Diffie-Hellman when the keys for exportable software are limited to 512 bits or fewer?
Answer Choices:
Looks at the mathematical probability of paired values being used
Takes a list of the most common passwords and tries each entry
Rolls the initialization vector over and reuses the same values
Determines the prime numbers used within the algorithm
Answer: Determines the prime numbers used within the algorithm
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