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Questions and Answers
What is the core element of cryptography mentioned in the text?
What is the core element of cryptography mentioned in the text?
- Reversing the plaintext
- Using Electronic Code Book encryption
- Adding a nonce to the encryption process
- Randomization in the encrypted data (correct)
Why is it problematic if encrypted data resembles the original plaintext?
Why is it problematic if encrypted data resembles the original plaintext?
- It reduces the file size of the encrypted data
- It makes the encrypted data more secure
- It speeds up the decryption process
- It allows attackers to easily reverse engineer the original text (correct)
What is Electronic Code Book (ECB) mentioned in the text used for?
What is Electronic Code Book (ECB) mentioned in the text used for?
- Generating nonces for encryption
- Encrypting blocks of data without randomization (correct)
- Adding randomization to cryptographic processes
- Decryption of encrypted images
What purpose does a nonce serve in cryptography?
What purpose does a nonce serve in cryptography?
How does lack of randomization affect the encryption process?
How does lack of randomization affect the encryption process?
What happens when each block of data in cryptography lacks randomization?
What happens when each block of data in cryptography lacks randomization?
What is the purpose of using a cryptographic nonce during a login process?
What is the purpose of using a cryptographic nonce during a login process?
What is an example of a cryptographic nonce commonly used in encryption methods?
What is an example of a cryptographic nonce commonly used in encryption methods?
How does using a different salt for each user's password hash in a database enhance security?
How does using a different salt for each user's password hash in a database enhance security?
Why is it beneficial for a server to send a different nonce to a client each time they log in?
Why is it beneficial for a server to send a different nonce to a client each time they log in?
Which term is used to describe a random value or something that is randomized enough to prevent guessing or replication by attackers?
Which term is used to describe a random value or something that is randomized enough to prevent guessing or replication by attackers?
How does adding an Initialization Vector (IV) to an encryption key enhance the overall encryption method?
How does adding an Initialization Vector (IV) to an encryption key enhance the overall encryption method?
What is a fundamental reason for ensuring a sufficient amount of randomization in cryptography?
What is a fundamental reason for ensuring a sufficient amount of randomization in cryptography?
How does Electronic Code Book (ECB) encryption differ from other encryption methods mentioned in the text?
How does Electronic Code Book (ECB) encryption differ from other encryption methods mentioned in the text?
What is the impact of encrypting data with insufficient randomization, as seen in the example of the puppy image?
What is the impact of encrypting data with insufficient randomization, as seen in the example of the puppy image?
Why is adding a nonce crucial to enhancing cryptographic processes?
Why is adding a nonce crucial to enhancing cryptographic processes?
In the context of cryptography, what role does a nonce play in encryption procedures?
In the context of cryptography, what role does a nonce play in encryption procedures?
What is a significant drawback of using Electronic Code Book (ECB) encryption without adding randomization?
What is a significant drawback of using Electronic Code Book (ECB) encryption without adding randomization?
What is the primary reason for using a cryptographic nonce during a login process?
What is the primary reason for using a cryptographic nonce during a login process?
How does the randomization introduced by a cryptographic nonce prevent replay attacks?
How does the randomization introduced by a cryptographic nonce prevent replay attacks?
What is the function of an Initialization Vector (IV) in encryption?
What is the function of an Initialization Vector (IV) in encryption?
Why is it important to use a unique salt for each user's password hash in a database?
Why is it important to use a unique salt for each user's password hash in a database?
Which encryption method commonly uses an Initialization Vector (IV) for adding randomization?
Which encryption method commonly uses an Initialization Vector (IV) for adding randomization?
What is the purpose of including a nonce in the storage of password hashes permanently in a database?
What is the purpose of including a nonce in the storage of password hashes permanently in a database?
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