1_2_14 Section 1 – Attacks, Threats, and Vulnerabilities - 1.2 – Attack Types - Cryptographic Attacks
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Questions and Answers

What is a common challenge when dealing with cryptographic attacks?

  • Ensuring the security of data during transmission (correct)
  • Sharing encryption keys with multiple parties
  • Randomizing data before encryption
  • Developing new encryption algorithms

In cryptographic attacks, what technique do attackers frequently use if they lack the decryption key?

  • Using brute force to crack the encryption
  • Exploiting weaknesses in the implementation of cryptography (correct)
  • Accessing a backup decryption key
  • Collaborating with insiders for access

What type of attack is based on the probability of two students sharing a birthday in a classroom?

  • Student coincidence strike
  • Birthday breach
  • Classroom assault
  • Birthday attack (correct)

Why is it important to secure data during its transmission?

<p>To prevent attacks based on cryptographic vulnerabilities (D)</p> Signup and view all the answers

What increases the likelihood of two students sharing a birthday in a classroom?

<p>Having more students in the classroom (C)</p> Signup and view all the answers

What aspect of cryptographic attacks do attackers typically focus on when attempting to access encrypted data?

<p>Implementation vulnerabilities (B)</p> Signup and view all the answers

What is a 'hash collision' in the digital world?

<p>When two different plain texts create exactly the same hash (D)</p> Signup and view all the answers

How can hash collisions be prevented?

<p>By increasing the size of the hash (A)</p> Signup and view all the answers

Why are collisions considered bad in hashing?

<p>Hashes are always supposed to be unique (D)</p> Signup and view all the answers

Which hashing algorithm experienced a well-known collision issue in 1996?

<p>MD5 (Message Digest Algorithm version 5) (D)</p> Signup and view all the answers

What type of attack involves downgrading encryption during communication?

<p>Downgrade attack (B)</p> Signup and view all the answers

What encryption mechanism was succeeded by Transport Layer Security (TLS)?

<p>SSL (Secure Sockets Layer) (A)</p> Signup and view all the answers

What version of SSL was prone to cryptographic vulnerabilities, leading to a downgrade attack in 2014?

<p>SSL 3.0 (A)</p> Signup and view all the answers

In a downgrade attack, what did the two devices communicate at after being forced to downgrade?

<p>SSL version 3.0 (D)</p> Signup and view all the answers

What happened after the vulnerability in SSL 3.0 was discovered in 2014?

<p>'We all configured our servers not to allow SSL 3.0' (C)</p> Signup and view all the answers

'Poodle' refers to a downgrade attack that affected which encryption mechanism?

<p>'Secure Sockets Layer (SSL)' (B)</p> Signup and view all the answers

What is a common method attackers use to gain access to encrypted data if they don't have the decryption key?

<p>Exploiting cryptographic vulnerabilities (D)</p> Signup and view all the answers

In cryptographic attacks, what often allows attackers to access encrypted data?

<p>Flaws in the implementation of cryptography (C)</p> Signup and view all the answers

What is a significant factor that increases the likelihood of successful attacks on encrypted data?

<p>Mismanagement of cryptographic keys (B)</p> Signup and view all the answers

Why do attackers focus on finding inconsistencies and vulnerabilities in data transfer methods?

<p>To exploit weaknesses in the cryptography implementation (C)</p> Signup and view all the answers

What is a key takeaway from the concept of the birthday attack mentioned in the text?

<p>Probability plays a significant role in cybersecurity (C)</p> Signup and view all the answers

How does the birthday attack concept relate to cybersecurity threats?

<p>It demonstrates the importance of understanding probability in attacks (D)</p> Signup and view all the answers

What is a hash collision in the digital world?

<p>When two completely different types of plain text create exactly the same hash (D)</p> Signup and view all the answers

What does increasing the size of a hash do in terms of collisions?

<p>Decreases the potential for collisions (C)</p> Signup and view all the answers

What was the major concern related to the MD5 hash collision in 2008?

<p>Fake certificate authorities could be created (D)</p> Signup and view all the answers

In cryptographic terms, what can a downgrade attack result in?

<p>Forcing communication at a lower level of encryption (C)</p> Signup and view all the answers

What was the significance of researchers finding a vulnerability in Transport Layer Security in 2014?

<p>It led to a downgrade attack to SSL version 3.0 (B)</p> Signup and view all the answers

Why are hash collisions considered problematic in cryptography?

<p>They violate the uniqueness of hash values (A)</p> Signup and view all the answers

What did the 'Poodle' downgrade attack exploit in 2014?

<p>Vulnerabilities in SSL 3.0 encryption (B)</p> Signup and view all the answers

How did researchers exploit MD5 hash collisions in 2008?

<p>Created fake legitimate certificate authorities (D)</p> Signup and view all the answers

What could be a consequence of allowing SSL 3.0 encryption in communication?

<p>'Poodle' attacks can easily decrypt data (B)</p> Signup and view all the answers

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