Question 1

A hash algorithm is designed to create a hash that represents the contents of a set of data that can later be decrypted.

Accepted Answer

A) True 
 B)False

Question 2

In cryptography, which of the five basic protections ensures that the information is correct and no unauthorized person or malicious software has altered that data?

Accepted Answer

A)  Confidentiality
B)  Availability
C)  Encryption
D)  IntegrityE) A) and B)
F) A) and C) D

Question 3

The Data Encryption Standard is a(n) ______________ cipher.

Accepted Answer

The answer of The Data Encryption Standard is a(n) ______________...

Question 4

Select below the hashing algorithm that takes plaintext of any length and generates a digest 128 bits in length:

Accepted Answer

A)  RSA
B)  SHA1
C)  MD5
D)  MD2E) C) and D)
F) None of the above

Question 5

Cryptography that attempts to use the microscopic behaviors of objects to develop and share keys while also detecting eavesdropping is known as what type of cryptography?

Accepted Answer

A)  Reactive cryptography
B)  Symmetric cryptography
C)  Analog cryptography
D)  Quantum cryptographyE) All of the above
F) B) and C)

Question 6

Match the following terms to the appropriate definitions
-An asymmetric encryption key that does not have to be protected.​

Accepted Answer

A)  Advanced Encryption Standard (AES) 
B)  Block cipher
C)  Ciphertext
D)  Data Encryption Standard (DES) 
E)  Diffie-Hellman (DH) F) Elliptic curve cryptography (EC
C)  G) Ephemeral keyH) Private keyI) Public keyJ) Stream cipherK) G) and J)
L) C) and F)

Question 7

Match the following terms to the appropriate definitions
-​An algorithm that takes one character and replaces it with one character.

Accepted Answer

A)  Advanced Encryption Standard (AES) 
B)  Block cipher
C)  Ciphertext
D)  Data Encryption Standard (DES) 
E)  Diffie-Hellman (DH) F) Elliptic curve cryptography (EC
C)  G) Ephemeral keyH) Private keyI) Public keyJ) Stream cipherK) F) and H)
L) D) and I) J

Question 8

A block cipher works on a single character at a time, and is faster than a stream cipher.

Accepted Answer

A) True 
 B)False

Question 9

What is the name of the cryptographic hash function that has international recognition and has been adopted by standards organizations such as the ISO, that creates a digest of 512 bits and will not be subject to patents?

Accepted Answer

A)  Twofish
B)  Blowfish
C)  Whirlpool
D)  RijndalE) All of the above
F) A) and D)

Question 10

Data that is in an unencrypted form is referred to as which of the following?

Accepted Answer

A)  Plaintext
B)  Plain text
C)  Simpletext
D)  CleartextE) A) and D)
F) B) and D)

Question 11

Match the following terms to the appropriate definitions
-​An algorithm that uses elliptic curves instead of prime numbers to compute keys

Accepted Answer

A)  Advanced Encryption Standard (AES) 
B)  Block cipher
C)  Ciphertext
D)  Data Encryption Standard (DES) 
E)  Diffie-Hellman (DH) F) Elliptic curve cryptography (EC
C)  G) Ephemeral keyH) Private keyI) Public keyJ) Stream cipherK) C) and D)
L) A) and H)

Question 12

Match the following terms to the appropriate definitions
-A cipher that manipulates an entire block of plaintext at one time.​

Accepted Answer

A)  Advanced Encryption Standard (AES) 
B)  Block cipher
C)  Ciphertext
D)  Data Encryption Standard (DES) 
E)  Diffie-Hellman (DH) F) Elliptic curve cryptography (EC
C)  G) Ephemeral keyH) Private keyI) Public keyJ) Stream cipherK) H) and I)
L) A) and I)

Question 13

Match the following terms to the appropriate definitions
-A key exchange that requires all parties to agree upon a large prime number and related integer so that the same key can be separately created.​

Accepted Answer

A)  Advanced Encryption Standard (AES) 
B)  Block cipher
C)  Ciphertext
D)  Data Encryption Standard (DES) 
E)  Diffie-Hellman (DH) F) Elliptic curve cryptography (EC
C)  G) Ephemeral keyH) Private keyI) Public keyJ) Stream cipherK) D) and J)
L) D) and I)

Question 14

The NTRUEncrypt cryptographic algorithm makes use of which of the following cryptographic techniques?

Accepted Answer

A)  matrix-based
B)  lattice-based
C)  linear
D)  quantumE) A) and B)
F) B) and D)

Question 15

Select below the standard that is based on the Rijndael algorithm, and was approved by NIST in late 2000 as a replacement for DES:

Accepted Answer

A)  AES
B)  3DES
C)  RSA
D)  TwofishE) A) and D)
F) A) and C)

Question 16

The original cryptographic algorithms for encrypting and decrypting documents are ____________________ cryptographic algorithms.

Accepted Answer

The answer of The original cryptographic algorithms for encrypting and...

Question 17

Discuss how cryptography can help ensure the availability of the data.

Accepted Answer

Rather than keeping an important file or...

Question 18

What is the block cipher algorithm that operates on 64-bit blocks and can have a key length from 32 to 448 bits known as?

Accepted Answer

A)  RSA
B)  AES
C)  Blowfish
D)  3DESE) A) and B)
F) A) and C)

Question 19

How can steganography be used to hide information in something other than images?

Accepted Answer

Steganography can be used to hide data within the file header fields that describe the file, between sections of the metadata.

Question 20

Self-encrypting HDD is commonly found in copiers and multifunction printers as well as point-of-sale systems used in government, financial, and medical environments.

Accepted Answer

A) True 
 B)False

Exam 5: Basic Cryptography

A hash algorithm is designed to create a hash that represents the contents of a set of data that can later be decrypted.

Correct AnswerverifiedShow Answer

In cryptography, which of the five basic protections ensures that the information is correct and no unauthorized person or malicious software has altered that data?

Correct AnswerverifiedD

The Data Encryption Standard is a(n) ______________ cipher.

Correct AnswerverifiedShow Answer

Select below the hashing algorithm that takes plaintext of any length and generates a digest 128 bits in length:

Correct AnswerverifiedShow Answer

Cryptography that attempts to use the microscopic behaviors of objects to develop and share keys while also detecting eavesdropping is known as what type of cryptography?

Correct AnswerverifiedShow Answer

Match the following terms to the appropriate definitions -An asymmetric encryption key that does not have to be protected.​

Correct AnswerverifiedShow Answer

Match the following terms to the appropriate definitions -​An algorithm that takes one character and replaces it with one character.

Correct AnswerverifiedJ

A block cipher works on a single character at a time, and is faster than a stream cipher.

Correct AnswerverifiedShow Answer

What is the name of the cryptographic hash function that has international recognition and has been adopted by standards organizations such as the ISO, that creates a digest of 512 bits and will not be subject to patents?

Correct AnswerverifiedShow Answer

Data that is in an unencrypted form is referred to as which of the following?

Correct AnswerverifiedShow Answer

Match the following terms to the appropriate definitions -​An algorithm that uses elliptic curves instead of prime numbers to compute keys

Correct AnswerverifiedShow Answer

Match the following terms to the appropriate definitions -A cipher that manipulates an entire block of plaintext at one time.​

Correct AnswerverifiedShow Answer

Match the following terms to the appropriate definitions -A key exchange that requires all parties to agree upon a large prime number and related integer so that the same key can be separately created.​

Correct AnswerverifiedShow Answer

The NTRUEncrypt cryptographic algorithm makes use of which of the following cryptographic techniques?

Correct AnswerverifiedShow Answer

Select below the standard that is based on the Rijndael algorithm, and was approved by NIST in late 2000 as a replacement for DES:

Correct AnswerverifiedShow Answer

The original cryptographic algorithms for encrypting and decrypting documents are ____________________ cryptographic algorithms.

Correct AnswerverifiedShow Answer

Discuss how cryptography can help ensure the availability of the data.

Correct AnswerverifiedRather than keeping an important file or...View AnswerShow Answer

What is the block cipher algorithm that operates on 64-bit blocks and can have a key length from 32 to 448 bits known as?

Correct AnswerverifiedShow Answer

How can steganography be used to hide information in something other than images?

Correct AnswerverifiedSteganography can be used to hide data within the file header fields that describe the file, between sections of the metadata.

Self-encrypting HDD is commonly found in copiers and multifunction printers as well as point-of-sale systems used in government, financial, and medical environments.

Correct AnswerverifiedShow Answer

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Match the following terms to the appropriate definitions -An asymmetric encryption key that does not have to be protected.

Correct Answer
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Match the following terms to the appropriate definitions -An algorithm that takes one character and replaces it with one character.

Correct Answer
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J

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Match the following terms to the appropriate definitions -An algorithm that uses elliptic curves instead of prime numbers to compute keys

Correct Answer
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Match the following terms to the appropriate definitions -A cipher that manipulates an entire block of plaintext at one time.

Correct Answer
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Match the following terms to the appropriate definitions -A key exchange that requires all parties to agree upon a large prime number and related integer so that the same key can be separately created.

Correct Answer
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Correct Answer
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Rather than keeping an important file or...
View Answer

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Steganography can be used to hide data within the file header fields that describe the file, between sections of the metadata.

Correct Answer
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