Fundamentals Of Cryptography And Security Services! Trivia Quiz

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| By Apteantraining2
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Apteantraining2
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  • 1/6 Questions

    Now, Jim and Joe want their secret messages to be shared via a single key. Which cipher according to you is suitable in this case?

    • Symmetric-Key
    • Asymmetric-Key
    • Either (a) or (b)
    • Neither (a) nor (b)
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About This Quiz

Explore the Fundamentals of Cryptography and Security Services in this engaging trivia quiz! Dive into scenarios involving secure communications, symmetric keys, and cryptanalysis, enhancing your understanding of essential security protocols and practices.

Fundamentals Of Cryptography And Security Services! Trivia Quiz - Quiz

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  • 2. 

    Jim and Joe work at Crypty Solutions Inc. They want to share messages in a secure way where it is immune to attacks. What do you think Jim and Joe should implement?

    • Cryptography

    • Cryptanalysis

    • Either (a) or (b)

    • Neither (a) nor (b)

    Correct Answer
    A. Cryptography
    Explanation
    Jim and Joe should implement cryptography. Cryptography is the practice of securing communication by converting plain text into a coded form, known as cipher text, which can only be deciphered by authorized parties. It involves using encryption algorithms and keys to protect the confidentiality, integrity, and authenticity of messages. By implementing cryptography, Jim and Joe can ensure that their messages are secure and immune to attacks. Cryptanalysis, on the other hand, refers to the study of analyzing and breaking cryptographic systems, which is not what Jim and Joe want to achieve. Therefore, the correct answer is cryptography.

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  • 3. 

    Jim and Joe decide to use Diffie-Hellman method. If they are not authenticated to each other, what type of security attack can be expected?

    • Plaintext attack

    • Cipher text attack

    • Man-in-the-middle attack

    • None of the above

    Correct Answer
    A. Man-in-the-middle attack
    Explanation
    If Jim and Joe are not authenticated to each other, they are vulnerable to a man-in-the-middle attack. In this type of attack, an attacker intercepts the communication between Jim and Joe, pretending to be each of them to the other party. The attacker can then eavesdrop on the communication, modify the messages, or even inject their own messages, compromising the security of the Diffie-Hellman method. This attack can lead to unauthorized access to the exchanged encryption keys and potentially compromise the confidentiality and integrity of the communication.

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  • 4. 

    Jim wants to login to his Chat engine to ping Joe. The chat engine’s admin failed to include random string for password hash. What was missed in the implementation? 

    • Sheepdip

    • Salt

    • Bypass

    • Dongle

    Correct Answer
    A. Salt
    Explanation
    In the given scenario, the implementation of the chat engine's admin failed to include a random string for password hash. This random string, known as a salt, is used to add an additional layer of security to the password hashing process. By including a salt, the admin could have made it more difficult for attackers to crack the hashed passwords. Without the salt, the password hashes are more vulnerable to various attacks, such as rainbow table attacks, where precomputed tables of hash values are used to quickly guess the original passwords.

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  • 5. 

    Jim has encrypted his company’s confidential files using a secret key. Attacker John tries to decipher those files without knowing the key, what is this process called? 

    • Cryptography

    • Cryptanalysis

    • Decryption

    • None of the above

    Correct Answer
    A. Cryptanalysis
    Explanation
    Cryptanalysis is the correct answer because it refers to the process of deciphering encrypted information without having knowledge of the secret key. It involves analyzing the encrypted data and attempting to find patterns or vulnerabilities that can be exploited to break the encryption. Cryptanalysis is often used by attackers to try and gain unauthorized access to confidential information.

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  • 6. 

    Joe scheduled a company meeting and shared the location to Jim as “ZGTNU JHII” using substitution cipher, can you help Jim to find the location? Here are the substitution values by Joe: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z H D M S G K T J W A O I B P R X L Z U C N Y E Q V F

    • FORUM MALL

    • GREAT JAZZ

    • REGUS HALL

    • ICONS BOSS

    Correct Answer
    A. REGUS HALL
    Explanation
    Jim needs to decode the location shared by Joe using the substitution cipher. By referring to the substitution values provided, Jim can substitute each letter in "ZGTNU JHII" with its corresponding letter in the cipher. After decoding, the location is revealed as "REGUS HALL".

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 28, 2016
    Quiz Created by
    Apteantraining2

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