Question 1

On what principle did Julius Caesar's cryptographic messages function?

Accepted Answer

A) Each alphabetic letter was replaced by a corresponding number 
B) Each alphabetic letter was represented by a seemingly random symbol 
C) Each alphabetic letter was shifted three places down in the alphabet 
D) Each alphabetic letter was shifted 5 places up in the alphabet. 
A) Each alphabetic letter was replaced by a corresponding number 
B) Each alphabetic letter was represented by a seemingly random symbol 
C) Each alphabetic letter was shifted three places down in the alphabet 
D) Each alphabetic letter was shifted 5 places up in the alphabet.

Question 2

Which type of cryptographic algorithm takes an input string of any length, and returns a string of any requested variable length?

Accepted Answer

A) Substitution 
B) Block 
C) Loop 
D) Sponge 
A) Substitution 
B) Block 
C) Loop 
D) Sponge

Question 3

Discuss how HMAC works.

Accepted Answer

HMAC begins with a shared secret key tha

Question 4

What type of cryptography uses two keys instead of just one, generating both a private and a public key?

Accepted Answer

A) Symmetric 
B) Asymmetric 
C) Shared 
D) Open 
A) Symmetric 
B) Asymmetric 
C) Shared 
D) Open

Question 5

If using the MD5 hashing algorithm, what is the length to which each message is padded?

Accepted Answer

A) 32 bits 
B) 64 bits 
C) 128 bits 
D) 512 bits 
A) 32 bits 
B) 64 bits 
C) 128 bits 
D) 512 bits

Question 6

Match the following terms to the appropriate definitions
-​A symmetric cipher that was approved by the NIST in late 2000 as a replacement for DES

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 key
H)Private key
I)Public key
J)Stream cipher 
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 key
H)Private key
I)Public key
J)Stream cipher

Question 7

Which of the following is not one of the functions of a digital signature?

Accepted Answer

A) Verification of the sender 
B) Prevention of the sender from disowning the message 
C) Prove the integrity of the message 
D) Protect the public key 
A) Verification of the sender 
B) Prevention of the sender from disowning the message 
C) Prove the integrity of the message 
D) Protect the public key

Question 8

Match the following terms to the appropriate definitions
-A temporary key that is used only once before it is discarded.​

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 key
H)Private key
I)Public key
J)Stream cipher 
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 key
H)Private key
I)Public key
J)Stream cipher

Question 9

A key that is generated by a symmetric cryptographic algorithm is said to be a:

Accepted Answer

A) private key 
B) public key 
C) symmetric key 
D) shared key 
A) private key 
B) public key 
C) symmetric key 
D) shared key

Question 10

Match the following terms to the appropriate definitions
-Data that has been encrypted.​

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 key
H)Private key
I)Public key
J)Stream cipher 
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 key
H)Private key
I)Public key
J)Stream cipher

Question 11

The asymmetric cryptography algorithm most commonly used is:

Accepted Answer

A) AES 
B) RSA 
C) Twofish 
D) Blowfish 
A) AES 
B) RSA 
C) Twofish 
D) Blowfish

Question 12

A(n) ____________________ is a method used by operating systems to store, retrieve, and organize files.

Accepted Answer

The answer of A(n) ____________________ is a method used by...

Question 13

What cryptographic method, first proposed in the mid-1980s, makes use of sloping curves instead of large prime numbers?

Accepted Answer

A) FCC 
B) RSA 
C) ECC 
D) IKE 
A) FCC 
B) RSA 
C) ECC 
D) IKE

Question 14

In information technology, ____________________ is the process of proving that a user performed an action, such as sending an e-mail message or a specific document.
​Match the following terms to the appropriate definitions.​

Accepted Answer

The answer of In information technology, ____________________ is the process...

Question 15

The SHA-1 hashing algorithm creates a digest that is how many bits in length?

Accepted Answer

A) ​96 bits 
B) ​128 bits 
C) ​160 bits 
D) ​192 bits 
A) ​96 bits 
B) ​128 bits 
C) ​160 bits 
D) ​192 bits

Question 16

After the DES cipher was broken and no longer considered secure, what encryption algorithm was made as its successor?

Accepted Answer

A) AES 
B) Twofish 
C) 3DES 
D) RSA 
A) AES 
B) Twofish 
C) 3DES 
D) RSA

Question 17

Describe how Message Digest2 (MD2) works.

Accepted Answer

Message Digest 2 (MD2) takes plaintext o

Question 18

Describe the RIPEMD hash.

Accepted Answer

Another hash was developed by the Resear

Question 19

Explain hashing.

Accepted Answer

Hashing is a process for creating a uniq

Question 20

Match the following terms to the appropriate definitions
-​A symmetric block cipher that uses a 56-bit key and encrypts data in 64-bit blocks

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 key
H)Private key
I)Public key
J)Stream cipher 
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 key
H)Private key
I)Public key
J)Stream cipher

On what principle did Julius Caesar's cryptographic messages function?

Which type of cryptographic algorithm takes an input string of any length, and returns a string of any requested variable length?

Discuss how HMAC works.

What type of cryptography uses two keys instead of just one, generating both a private and a public key?

If using the MD5 hashing algorithm, what is the length to which each message is padded?

Match the following terms to the appropriate definitions -A symmetric cipher that was approved by the NIST in late 2000 as a replacement for DES

Which of the following is not one of the functions of a digital signature?

Match the following terms to the appropriate definitions -A temporary key that is used only once before it is discarded.

A key that is generated by a symmetric cryptographic algorithm is said to be a:

Match the following terms to the appropriate definitions -Data that has been encrypted.

The asymmetric cryptography algorithm most commonly used is:

A(n) ____________________ is a method used by operating systems to store, retrieve, and organize files.

What cryptographic method, first proposed in the mid-1980s, makes use of sloping curves instead of large prime numbers?

In information technology, ____________________ is the process of proving that a user performed an action, such as sending an e-mail message or a specific document. Match the following terms to the appropriate definitions.

The SHA-1 hashing algorithm creates a digest that is how many bits in length?

After the DES cipher was broken and no longer considered secure, what encryption algorithm was made as its successor?

Describe how Message Digest2 (MD2) works.

Describe the RIPEMD hash.

Explain hashing.

Match the following terms to the appropriate definitions -A symmetric block cipher that uses a 56-bit key and encrypts data in 64-bit blocks

Introduction to Security

Malware and Social Engineering Attacks

Application and Networking-Based Attacks

Host, Application, and Data Security

Advanced Cryptography

Network Security

Administering a Secure Network

Wireless Network Security

Mobile Device Security

Access Control Fundamentals

Authentication and Account Management

Business Continuity

Risk Mitigation

Vulnerability Assessment and Third Party Integration

Filters

Exam 5: Basic Cryptography

On what principle did Julius Caesar's cryptographic messages function?

Which type of cryptographic algorithm takes an input string of any length, and returns a string of any requested variable length?

Discuss how HMAC works.

What type of cryptography uses two keys instead of just one, generating both a private and a public key?

If using the MD5 hashing algorithm, what is the length to which each message is padded?

Match the following terms to the appropriate definitions -​A symmetric cipher that was approved by the NIST in late 2000 as a replacement for DES

Which of the following is not one of the functions of a digital signature?

Match the following terms to the appropriate definitions -A temporary key that is used only once before it is discarded.​

A key that is generated by a symmetric cryptographic algorithm is said to be a:

Match the following terms to the appropriate definitions -Data that has been encrypted.​

The asymmetric cryptography algorithm most commonly used is:

A(n) ____________________ is a method used by operating systems to store, retrieve, and organize files.

What cryptographic method, first proposed in the mid-1980s, makes use of sloping curves instead of large prime numbers?

In information technology, ____________________ is the process of proving that a user performed an action, such as sending an e-mail message or a specific document. ​Match the following terms to the appropriate definitions.​

The SHA-1 hashing algorithm creates a digest that is how many bits in length?

After the DES cipher was broken and no longer considered secure, what encryption algorithm was made as its successor?

Describe how Message Digest2 (MD2) works.

Describe the RIPEMD hash.

Explain hashing.

Match the following terms to the appropriate definitions -​A symmetric block cipher that uses a 56-bit key and encrypts data in 64-bit blocks

Introduction to Security

Malware and Social Engineering Attacks

Application and Networking-Based Attacks

Host, Application, and Data Security

Advanced Cryptography

Network Security

Administering a Secure Network

Wireless Network Security

Mobile Device Security

Access Control Fundamentals

Authentication and Account Management

Business Continuity

Risk Mitigation

Vulnerability Assessment and Third Party Integration

Filters

Match the following terms to the appropriate definitions -A symmetric cipher that was approved by the NIST in late 2000 as a replacement for DES

Match the following terms to the appropriate definitions -A temporary key that is used only once before it is discarded.

Match the following terms to the appropriate definitions -Data that has been encrypted.

In information technology, ____________________ is the process of proving that a user performed an action, such as sending an e-mail message or a specific document. Match the following terms to the appropriate definitions.

Match the following terms to the appropriate definitions -A symmetric block cipher that uses a 56-bit key and encrypts data in 64-bit blocks