Can one be compelled by law enforcement to reveal a cryptographic key or the password to unlock such a key.

Question 9 options:

1)	Yes; you could be jailed for contempt of court if you refuse.

2)	No; you have a Fifth Amendment right not to incriminate yourself.

3)	Maybe; Federal courts in different circuits have ruled differently under different circumstances.

4)	Maybe, but only if there is other evidence against you.

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Question 10 (5 points)

A digital certificate makes a public key tamper-resistant because

Question 10 options:

1)	the certificate authority is a trusted third party.

2)	the entire certificate is encrypted.

3)	the digital signature will not validate if the certificate is changed.

4)	the certificate is signed by the owner of the public key.

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Question 11 (5 points)

Which of the following best describes the key exchange problem?

Question 11 options:

1)	Evil Eve wants to exchange her key for Bill's in a key repository.

2)	Alice wants to give a symmetric key to Barbara in a secure manner.

3)	A wireless communication system is designed to use a new key every few seconds.

4)	Charlie and David want to use each other's keys.

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Question 12 (5 points)

You are working on a project that deals with confidential data which requires encryption. A colleague tells you he has developed a new, unbreakable encryption algorithm. How should you respond?

Question 12 options:

1)	Great! We will have a secret algorithm as well as a secret key.

2)	We should use a published and time-tested algorithm.

3)	Will you license your new algorithm to the company? We need to be sure of the rights.

4)	Can your algorithm be implemented in Java, the language of the project?

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Question 13 (5 points)

Which encryption algorithm is most appropriate for data in storage?

Question 13 options:

1)	public key cryptography.

2)	cryptographic hash algorithms.

3)	symmetric key cryptography.

4)	hybrid cryptography.

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Question 14 (5 points)

The advanced encryption standard (AES) is

Question 14 options:

1)	required for use by banks and the Federal government.

2)	an absolutely secure algorithm.

3)	far too weak to be used.

4)	the latest encryption standard from NIST.

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Question 15 (5 points)

Which encryption algorithm is most appropriate for on line electronic commerce?

Question 15 options:

1)	public key cryptography.

2)	cryptographic hash algorithms.

3)	symmetric key cryptography.

4)	hybrid cryptography.