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Chapter 6 · SecurityPractice
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CONCEPT PRACTICE

Session key cryptography

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Volume 1 · Chapter 6 · Textbook Exercises · Q6

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Which of the following is an appropriate description of cryptography?

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Source: FE Vol 1.pdf, PDF page 407, textbook p. 397 · Information-technology Promotion Agency, Japan · First Edition: April, 2015. ID: tb-v1-c6-q6. Publisher answer and commentary · private review.

Original question · Q6
Q6 Which of the following is an appropriate description of cryptography? a) Common key cryptography is safe for communication with multiple parties, even when the same encryption key is used. b) Public key cryptography requires that the encryption key be privately distributed to the communicating party. c) Public key cryptography offers simpler and faster decryption than common key cryptography does. d) A method is made practical by which at the start of communication a common key is encrypted by public key cryptography and sent to the other party, and encryption of data is performed by common key cryptography.

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