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Exam 8: Cryptography

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Question 61

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AES implements a block cipher called the Rijndael ​Block Cipher. _________________________

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B) False

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Question 62

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The process of obtaining the plaintext message from a ciphertext message without knowing the keys used to perform the encryption is called ___________.

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Question 63

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Common implementations of a registration authority (RA) include functions to issue digital certificates to users and servers.

A multipart authentication code (MAC) is a key-dependent, one-way hash function that allows only specific recipients (symmetric key holders) to access the message digest. _________________________

The more common name for asymmetric encryption is ____________________-key encryption.

Nonrepudiation means that customers or partners can be held accountable for transactions, such as online purchases, which they cannot later deny.

SSL builds on the encoding format of the Multipurpose Internet Mail Extensions protocol and uses digital signatures based on public-key cryptosystems to secure e-mail.

The ____________________ operation is a function of Boolean algebra in which two bits are compared, and if the two bits are identical, the result is a binary 0.

The __________ is responsible for the fragmentation, compression, encryption, and attachment of an SSL header to the cleartext prior to transmission.