What are the differences between a block cipher and a sponge function?
Answer: A block cipher encrypts plaintext at a fixed size d. A block cipher encrypts plaintext at a fixed size whereas a sponge function takes an input string at any length
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Cyber Security
- What is the purpose of suspending a digital certificate rather than revoking it?
- How does an attacker successfully alter a message that was sent with a digital certificate?
- What is concerning about entry-level certificates?
- On which of the following devices is IPsec likely to be implemented?
- Which of the following is used to digitally sign a certificate?
- If a browser cannot connect to the OSCP responder, what does the browser receive in return?
- Why would an administrator NOT renew a key?
- What is involved in key escrow?
- A hierarchical trust model signs digital certificate authorities with how many keys?
- PKI consists of all of the following EXCEPT what?
- Which of the following does a digital certificate NOT contain?
- How can an EV SSL help users avoid dangerous sites?
- Why is a pre-master secret an important component of a web browser and web server handshake?
- Why would an administrator choose to use multiple Registration Authorities when processing certificate requests?
- Public Key Cryptography Standards are based on which of the following?
- Where are private keys NOT stored?
- How are TLS and SSL currently different in regards to security?
- What is the biggest difference between a CA and an RA?
- Which of the following is provided by a server digital certificate?
- Which of the following explains the importance of a "facilitator?"
- NTRUEncrypt is based on which cryptography method?
- "Plaintext" is a term that is best described as what?
- Which of the following is an advantage of the Keccak algorithm?
- What is a benefit of using a combination of symmetrical and asymmetrical cryptography when transferring data across the internet?
- Why is a homoalphabetic substitution considered a stream cipher?