TestOut Quiz 3.4 – Flashcards
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How many keys are used with asymmetric or public key cryptography?
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Two
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A receiver wants to verify the integrity of a message received from a sender. A hashing value is contained within the digital signature of the sender. What must the receiver use to access the hashing value to verify the integrity of the transmission?
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Sender's public key
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Which of the follow are characteristics of ECC? (Select two.)
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Uses a finite set of values within an algebraic field Asymmetric encryption
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Which of the following algorithms are used in asymmetric encryption? (Select two.)
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RSA Diffie-Hellman
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Above all else, what must be protected to maintain the security and benefit of an asymmetric cryptographic solution, especially if it is widely used for digital certificates?
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Private keys
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Which of the following generates the key pair used in asymmetric cryptography?
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CSP
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Mary wants to send a message to Sam so that only Sam can read it. Which key would be used to encrypt the message?
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Sam's public key
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Mary wants to send a message to Sam. She wants to digitally sign the message to prove that she sent it. Which key would Mary use to create the digital signature?
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Mary's private key
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The strength of a cryptosystem is dependent upon which of the following?
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Secrecy of the key
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Which form of asymmetric cryptography is based upon Diffie-Hellman?
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El Gamal
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Which cryptography system generates encryption keys that could be used with DES, AES, IDEA, RC5 or any other symmetric cryptography solution?
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Diffie-Hellman
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Match each public-key cryptography key management mechanism on the left with the corresponding description on the right. Each mechanism may be used once, more than once, or not at all. Implements the Diffie-Hellman key exchange protocol using elliptic curve cryptography
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ECDH
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Match each public-key cryptography key management mechanism on the left with the corresponding description on the right. Each mechanism may be used once, more than once, or not at all. Exist only for the lifetime of a specific communication session
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Ephemeral keys
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Match each public-key cryptography key management mechanism on the left with the corresponding description on the right. Each mechanism may be used once, more than once, or not at all. Uses no deterministic algorithm when generating public keys
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Perfect forward secrecy
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Match each public-key cryptography key management mechanism on the left with the corresponding description on the right. Each mechanism may be used once, more than once, or not at all. Can be reused by multiple communication sessions
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Static keys
